Once again, Sam Altman wants to show you the future. The CEO of OpenAI is standing on a sparse stage in San Francisco, preparing to reveal his next move to an attentive crowd. “We needed some way for identifying, authenticating humans in the age of AGI,” Altman explains, referring to artificial general intelligence. “We wanted a way to make sure that humans stayed special and central.” The solution Altman came up with is looming behind him. It’s a white sphere about the size of a beach ball, with a camera at its center. The company that makes it, known as Tools for Humanity, calls this mysterious device the Orb. Stare into the heart of the plastic-and-silicon globe and it will map the unique furrows and ciliary zones of your iris. Seconds later, you’ll receive inviolable proof of your humanity: a 12,800-digit binary number, known as an iris code, sent to an app on your phone. At the same time, a packet of cryptocurrency called Worldcoin, worth approximately $42, will be transferred to your digital wallet—your reward for becoming a “verified human.” Altman co-founded Tools for Humanity in 2019 as part of a suite of companies he believed would reshape the world. Once the tech he was developing at OpenAI passed a certain level of intelligence, he reasoned, it would mark the end of one era on the Internet and the beginning of another, in which AI became so advanced, so human-like, that you would no longer be able to tell whether what you read, saw, or heard online came from a real person. When that happened, Altman imagined, we would need a new kind of online infrastructure: a human-verification layer for the Internet, to distinguish real people from the proliferating number of bots and AI “agents.”And so Tools for Humanity set out to build a global “proof-of-humanity” network. It aims to verify 50 million people by the end of 2025; ultimately its goal is to sign up every single human being on the planet. The free crypto serves as both an incentive for users to sign up, and also an entry point into what the company hopes will become the world’s largest financial network, through which it believes “double-digit percentages of the global economy” will eventually flow. Even for Altman, these missions are audacious. “If this really works, it’s like a fundamental piece of infrastructure for the world,” Altman tells TIME in a video interview from the passenger seat of a car a few days before his April 30 keynote address.Internal hardware of the Orb in mid-assembly in March. Davide Monteleone for TIMEThe project’s goal is to solve a problem partly of Altman’s own making. In the near future, he and other tech leaders say, advanced AIs will be imbued with agency: the ability to not just respond to human prompting, but to take actions independently in the world. This will enable the creation of AI coworkers that can drop into your company and begin solving problems; AI tutors that can adapt their teaching style to students’ preferences; even AI doctors that can diagnose routine cases and handle scheduling or logistics. The arrival of these virtual agents, their venture capitalist backers predict, will turbocharge our productivity and unleash an age of material abundance.But AI agents will also have cascading consequences for the human experience online. “As AI systems become harder to distinguish from people, websites may face difficult trade-offs,” says a recent paper by researchers from 25 different universities, nonprofits, and tech companies, including OpenAI. “There is a significant risk that digital institutions will be unprepared for a time when AI-powered agents, including those leveraged by malicious actors, overwhelm other activity online.” On social-media platforms like X and Facebook, bot-driven accounts are amassing billions of views on AI-generated content. In April, the foundation that runs Wikipedia disclosed that AI bots scraping their site were making the encyclopedia too costly to sustainably run. Later the same month, researchers from the University of Zurich found that AI-generated comments on the subreddit /r/ChangeMyView were up to six times more successful than human-written ones at persuading unknowing users to change their minds.  Photograph by Davide Monteleone for TIMEBuy a copy of the Orb issue hereThe arrival of agents won’t only threaten our ability to distinguish between authentic and AI content online. It will also challenge the Internet’s core business model, online advertising, which relies on the assumption that ads are being viewed by humans. “The Internet will change very drastically sometime in the next 12 to 24 months,” says Tools for Humanity CEO Alex Blania. “So we have to succeed, or I’m not sure what else would happen.”For four years, Blania’s team has been testing the Orb’s hardware abroad. Now the U.S. rollout has arrived. Over the next 12 months, 7,500 Orbs will be arriving in dozens of American cities, in locations like gas stations, bodegas, and flagship stores in Los Angeles, Austin, and Miami. The project’s founders and fans hope the Orb’s U.S. debut will kickstart a new phase of growth. The San Francisco keynote was titled: “At Last.” It’s not clear the public appetite matches the exultant branding. Tools for Humanity has “verified” just 12 million humans since mid 2023, a pace Blania concedes is well behind schedule. Few online platforms currently support the so-called “World ID” that the Orb bestows upon its visitors, leaving little to entice users to give up their biometrics beyond the lure of free crypto. Even Altman isn’t sure whether the whole thing can work. “I can see [how] this becomes a fairly mainstream thing in a few years,” he says. “Or I can see that it’s still only used by a small subset of people who think about the world in a certain way.” Blania (left) and Altman debut the Orb at World’s U.S. launch in San Francisco on April 30, 2025. Jason Henry—The New York Times/ReduxYet as the Internet becomes overrun with AI, the creators of this strange new piece of hardware are betting that everybody in the world will soon want—or need—to visit an Orb. The biometric code it creates, they predict, will become a new type of digital passport, without which you might be denied passage to the Internet of the future, from dating apps to government services. In a best-case scenario, World ID could be a privacy-preserving way to fortify the Internet against an AI-driven deluge of fake or deceptive content. It could also enable the distribution of universal basic income (UBI)—a policy that Altman has previously touted—as AI automation transforms the global economy. To examine what this new technology might mean, I reported from three continents, interviewed 10 Tools for Humanity executives and investors, reviewed hundreds of pages of company documents, and “verified” my own humanity. The Internet will inevitably need some kind of proof-of-humanity system in the near future, says Divya Siddarth, founder of the nonprofit Collective Intelligence Project. The real question, she argues, is whether such a system will be centralized—“a big security nightmare that enables a lot of surveillance”—or privacy-preserving, as the Orb claims to be. Questions remain about Tools for Humanity’s corporate structure, its yoking to an unstable cryptocurrency, and what power it would concentrate in the hands of its owners if successful. Yet it’s also one of the only attempts to solve what many see as an increasingly urgent problem. “There are some issues with it,” Siddarth says of World ID. “But you can’t preserve the Internet in amber. Something in this direction is necessary.”In March, I met Blania at Tools for Humanity’s San Francisco headquarters, where a large screen displays the number of weekly “Orb verifications” by country. A few days earlier, the CEO had attended a $1 million-per-head dinner at Mar-a-Lago with President Donald Trump, whom he credits with clearing the way for the company’s U.S. launch by relaxing crypto regulations. “Given Sam is a very high profile target,” Blania says, “we just decided that we would let other companies fight that fight, and enter the U.S. once the air is clear.” As a kid growing up in Germany, Blania was a little different than his peers. “Other kids were, like, drinking a lot, or doing a lot of parties, and I was just building a lot of things that could potentially blow up,” he recalls. At the California Institute of Technology, where he was pursuing research for a masters degree, he spent many evenings reading the blogs of startup gurus like Paul Graham and Altman. Then, in 2019, Blania received an email from Max Novendstern, an entrepreneur who had been kicking around a concept with Altman to build a global cryptocurrency network. They were looking for technical minds to help with the project. Over cappuccinos, Altman told Blania he was certain about three things. First, smarter-than-human AI was not only possible, but inevitable—and it would soon mean you could no longer assume that anything you read, saw, or heard on the Internet was human-created. Second, cryptocurrency and other decentralized technologies would be a massive force for change in the world. And third, scale was essential to any crypto network’s value. The Orb is tested on a calibration rig, surrounded by checkerboard targets to ensure precision in iris detection. Davide Monteleone for TIMEThe goal of Worldcoin, as the project was initially called, was to combine those three insights. Altman took a lesson from PayPal, the company co-founded by his mentor Peter Thiel. Of its initial funding, PayPal spent less than $10 million actually building its app—but pumped an additional $70 million or so into a referral program, whereby new users and the person who invited them would each receive $10 in credit. The referral program helped make PayPal a leading payment platform. Altman thought a version of that strategy would propel Worldcoin to similar heights. He wanted to create a new cryptocurrency and give it to users as a reward for signing up. The more people who joined the system, the higher the token’s value would theoretically rise. Since 2019, the project has raised $244 million from investors like Coinbase and the venture capital firm Andreessen Horowitz. That money paid for the $50 million cost of designing the Orb, plus maintaining the software it runs on. The total market value of all Worldcoins in existence, however, is far higher—around $12 billion. That number is a bit misleading: most of those coins are not in circulation and Worldcoin’s price has fluctuated wildly. Still, it allows the company to reward users for signing up at no cost to itself. The main lure for investors is the crypto upside. Some 75% of all Worldcoins are set aside for humans to claim when they sign up, or as referral bonuses. The remaining 25% are split between Tools for Humanity’s backers and staff, including Blania and Altman. “I’m really excited to make a lot of money,” ” Blania says.From the beginning, Altman was thinking about the consequences of the AI revolution he intended to unleash. (On May 21, he announced plans to team up with famed former Apple designer Jony Ive on a new AI personal device.) A future in which advanced AI could perform most tasks more effectively than humans would bring a wave of unemployment and economic dislocation, he reasoned. Some kind of wealth redistribution might be necessary. In 2016, he partially funded a study of basic income, which gave $1,000 per-month handouts to low-income individuals in Illinois and Texas. But there was no single financial system that would allow money to be sent to everybody in the world. Nor was there a way to stop an individual human from claiming their share twice—or to identify a sophisticated AI pretending to be human and pocketing some cash of its own. In 2023, Tools for Humanity raised the possibility of using the network to redistribute the profits of AI labs that were able to automate human labor. “As AI advances,” it said, “fairly distributing access and some of the created value through UBI will play an increasingly vital role in counteracting the concentration of economic power.”Blania was taken by the pitch, and agreed to join the project as a co-founder. “Most people told us we were very stupid or crazy or insane, including Silicon Valley investors,” Blania says. At least until ChatGPT came out in 2022, transforming OpenAI into one of the world’s most famous tech companies and kickstarting a market bull-run. “Things suddenly started to make more and more sense to the external world,” Blania says of the vision to develop a global “proof-of-humanity” network. “You have to imagine a world in which you will have very smart and competent systems somehow flying through the Internet with different goals and ideas of what they want to do, and us having no idea anymore what we’re dealing with.”After our interview, Blania’s head of communications ushers me over to a circular wooden structure where eight Orbs face one another. The scene feels like a cross between an Apple Store and a ceremonial altar. “Do you want to get verified?” she asks. Putting aside my reservations for the purposes of research, I download the World App and follow its prompts. I flash a QR code at the Orb, then gaze into it. A minute or so later, my phone buzzes with confirmation: I’ve been issued my own personal World ID and some Worldcoin.The first thing the Orb does is check if you’re human, using a neural network that takes input from various sensors, including an infrared camera and a thermometer. Davide Monteleone for TIMEWhile I stared into the Orb, several complex procedures had taken place at once. A neural network took inputs from multiple sensors—an infrared camera, a thermometer—to confirm I was a living human. Simultaneously, a telephoto lens zoomed in on my iris, capturing the physical traits within that distinguish me from every other human on Earth. It then converted that image into an iris code: a numerical abstraction of my unique biometric data. Then the Orb checked to see if my iris code matched any it had seen before, using a technique allowing encrypted data to be compared without revealing the underlying information. Before the Orb deleted my data, it turned my iris code into several derivative codes—none of which on its own can be linked back to the original—encrypted them, deleted the only copies of the decryption keys, and sent each one to a different secure server, so that future users’ iris codes can be checked for uniqueness against mine. If I were to use my World ID to access a website, that site would learn nothing about me except that I’m human. The Orb is open-source, so outside experts can examine its code and verify the company’s privacy claims. “I did a colonoscopy on this company and these technologies before I agreed to join,” says Trevor Traina, a Trump donor and former U.S. ambassador to Austria who now serves as Tools for Humanity’s chief business officer. “It is the most privacy-preserving technology on the planet.”Only weeks later, when researching what would happen if I wanted to delete my data, do I discover that Tools for Humanity’s privacy claims rest on what feels like a sleight of hand. The company argues that in modifying your iris code, it has “effectively anonymized” your biometric data. If you ask Tools for Humanity to delete your iris codes, they will delete the one stored on your phone, but not the derivatives. Those, they argue, are no longer your personal data at all. But if I were to return to an Orb after deleting my data, it would still recognize those codes as uniquely mine. Once you look into the Orb, a piece of your identity remains in the system forever. If users could truly delete that data, the premise of one ID per human would collapse, Tools for Humanity’s chief privacy officer Damien Kieran tells me when I call seeking an explanation. People could delete and sign up for new World IDs after being suspended from a platform. Or claim their Worldcoin tokens, sell them, delete their data, and cash in again. This argument fell flat with European Union regulators in Germany, who recently declared that the Orb posed “fundamental data protection issues” and ordered the company to allow European users to fully delete even their anonymized data. (Tools for Humanity has appealed; the regulator is now reassessing the decision.) “Just like any other technology service, users cannot delete data that is not personal data,” Kieran said in a statement. “If a person could delete anonymized data that can’t be linked to them by World or any third party, it would allow bad actors to circumvent the security and safety that World ID is working to bring to every human.”On a balmy afternoon this spring, I climb a flight of stairs up to a room above a restaurant in an outer suburb of Seoul. Five elderly South Koreans tap on their phones as they wait to be “verified” by the two Orbs in the center of the room. “We don’t really know how to distinguish between AI and humans anymore,” an attendant in a company t-shirt explains in Korean, gesturing toward the spheres. “We need a way to verify that we’re human and not AI. So how do we do that? Well, humans have irises, but AI doesn’t.”The attendant ushers an elderly woman over to an Orb. It bleeps. “Open your eyes,” a disembodied voice says in English. The woman stares into the camera. Seconds later, she checks her phone and sees that a packet of Worldcoin worth 75,000 Korean won (about $54) has landed in her digital wallet. Congratulations, the app tells her. You are now a verified human.A visitor views the Orbs in Seoul on April 14, 2025. Taemin Ha for TIMETools for Humanity aims to “verify” 1 million Koreans over the next year. Taemin Ha for TIMEA couple dozen Orbs have been available in South Korea since 2023, verifying roughly 55,000 people. Now Tools for Humanity is redoubling its efforts there. At an event in a traditional wooden hanok house in central Seoul, an executive announces that 250 Orbs will soon be dispersed around the country—with the aim of verifying 1 million Koreans in the next 12 months. South Korea has high levels of smartphone usage, crypto and AI adoption, and Internet access, while average wages are modest enough for the free Worldcoin on offer to still be an enticing draw—all of which makes it fertile testing ground for the company’s ambitious global expansion. Yet things seem off to a slow start. In a retail space I visited in central Seoul, Tools for Humanity had constructed a wooden structure with eight Orbs facing each other. Locals and tourists wander past looking bemused; few volunteer themselves up. Most who do tell me they are crypto enthusiasts who came intentionally, driven more by the spirit of early adoption than the free coins. The next day, I visit a coffee shop in central Seoul where a chrome Orb sits unassumingly in one corner. Wu Ruijun, a 20-year-old student from China, strikes up a conversation with the barista, who doubles as the Orb’s operator. Wu was invited here by a friend who said both could claim free cryptocurrency if he signed up. The barista speeds him through the process. Wu accepts the privacy disclosure without reading it, and widens his eyes for the Orb. Soon he’s verified. “I wasn’t told anything about the privacy policy,” he says on his way out. “I just came for the money.”As Altman’s car winds through San Francisco, I ask about the vision he laid out in 2019: that AI would make it harder for us to trust each other online. To my surprise, he rejects the framing. “I’m much more [about] like: what is the good we can create, rather than the bad we can stop?” he says. “It’s not like, ‘Oh, we’ve got to avoid the bot overrun’ or whatever. It’s just that we can do a lot of special things for humans.” It’s an answer that may reflect how his role has changed over the years. Altman is now the chief public cheerleader of a $300 billion company that’s touting the transformative utility of AI agents. The rise of agents, he and others say, will be a boon for our quality of life—like having an assistant on hand who can answer your most pressing questions, carry out mundane tasks, and help you develop new skills. It’s an optimistic vision that may well pan out. But it doesn’t quite fit with the prophecies of AI-enabled infopocalypse that Tools for Humanity was founded upon.Altman waves away a question about the influence he and other investors stand to gain if their vision is realized. Most holders, he assumes, will have already started selling their tokens—too early, he adds. “What I think would be bad is if an early crew had a lot of control over the protocol,” he says, “and that’s where I think the commitment to decentralization is so cool.” Altman is referring to the World Protocol, the underlying technology upon which the Orb, Worldcoin, and World ID all rely. Tools for Humanity is developing it, but has committed to giving control to its users over time—a process they say will prevent power from being concentrated in the hands of a few executives or investors. Tools for Humanity would remain a for-profit company, and could levy fees on platforms that use World ID, but other companies would be able to compete for customers by building alternative apps—or even alternative Orbs. The plan draws on ideas that animated the crypto ecosystem in the late 2010s and early 2020s, when evangelists for emerging blockchain technologies argued that the centralization of power—especially in large so-called “Web 2.0” tech companies—was responsible for many of the problems plaguing the modern Internet. Just as decentralized cryptocurrencies could reform a financial system controlled by economic elites, so too would it be possible to create decentralized organizations, run by their members instead of CEOs. How such a system might work in practice remains unclear. “Building a community-based governance system,” Tools for Humanity says in a 2023 white paper, “represents perhaps the most formidable challenge of the entire project.”Altman has a pattern of making idealistic promises that shift over time. He founded OpenAI as a nonprofit in 2015, with a mission to develop AGI safely and for the benefit of all humanity. To raise money, OpenAI restructured itself as a for-profit company in 2019, but with overall control still in the hands of its nonprofit board. Last year, Altman proposed yet another restructure—one which would dilute the board’s control and allow more profits to flow to shareholders. Why, I ask, should the public trust Tools for Humanity’s commitment to freely surrender influence and power? “I think you will just see the continued decentralization via the protocol,” he says. “The value here is going to live in the network, and the network will be owned and governed by a lot of people.” Altman talks less about universal basic income these days. He recently mused about an alternative, which he called “universal basic compute.” Instead of AI companies redistributing their profits, he seemed to suggest, they could instead give everyone in the world fair access to super-powerful AI. Blania tells me he recently “made the decision to stop talking” about UBI at Tools for Humanity. “UBI is one potential answer,” he says. “Just giving [people] access to the latest [AI] models and having them learn faster and better is another.” Says Altman: “I still don’t know what the right answer is. I believe we should do a better job of distribution of resources than we currently do.” When I probe the question of why people should trust him, Altman gets irritated. “I understand that you hate AI, and that’s fine,” he says. “If you want to frame it as the downside of AI is that there’s going to be a proliferation of very convincing AI systems that are pretending to be human, and we need ways to know what is really human-authorized versus not, then yeah, I think you can call that a downside of AI. It’s not how I would naturally frame it.” The phrase human-authorized hints at a tension between World ID and OpenAI’s plans for AI agents. An Internet where a World ID is required to access most services might impede the usefulness of the agents that OpenAI and others are developing. So Tools for Humanity is building a system that would allow users to delegate their World ID to an agent, allowing the bot to take actions online on their behalf, according to Tiago Sada, the company’s chief product officer. “We’ve built everything in a way that can be very easily delegatable to an agent,” Sada says. It’s a measure that would allow humans to be held accountable for the actions of their AIs. But it suggests that Tools for Humanity’s mission may be shifting beyond simply proving humanity, and toward becoming the infrastructure that enables AI agents to proliferate with human authorization. World ID doesn’t tell you whether a piece of content is AI-generated or human-generated; all it tells you is whether the account that posted it is a human or a bot. Even in a world where everybody had a World ID, our online spaces might still be filled with AI-generated text, images, and videos.As I say goodbye to Altman, I’m left feeling conflicted about his project. If the Internet is going to be transformed by AI agents, then some kind of proof-of-humanity system will almost certainly be necessary. Yet if the Orb becomes a piece of Internet infrastructure, it could give Altman—a beneficiary of the proliferation of AI content—significant influence over a leading defense mechanism against it. People might have no choice but to participate in the network in order to access social media or online services.I thought of an encounter I witnessed in Seoul. In the room above the restaurant, Cho Jeong-yeon, 75, watched her friend get verified by an Orb. Cho had been invited to do the same, but demurred. The reward wasn’t enough for her to surrender a part of her identity. “Your iris is uniquely yours, and we don’t really know how it might be used,” she says. “Seeing the machine made me think: are we becoming machines instead of humans now? Everything is changing, and we don’t know how it’ll all turn out.”—With reporting by Stephen Kim/Seoul. This story was supported by Tarbell Grants.Correction, May 30The original version of this story misstated the market capitalization of Worldcoin if all coins were in circulation. It is $12 billion, not $1.2 billion.

© Henrique Ferreira via Unsplash Finding property lines can be tricky, especially for individuals who are looking to purchase or list a home for sale. Conventional techniques, including engaging surveyors, are costly and labor-intensive. As an alternate solution, technology provides apps that profess to show property lines. This raises the question: How precise are these digital resources at demarcating boundary lines? The emergence of an app that shows property lines has revolutionized how property owners, buyers, and real estate professionals interact with land boundaries. These digital tools leverage advanced mapping technologies to provide visual representations of property boundaries, offering a more accessible alternative to traditional surveying methods while raising important questions about their accuracy and reliability. What Are Property Line Apps? Apps that display property lines use Geographic Information Systems (GIS) and satellite imagery. They offer users a visual display of land boundaries, most commonly available on smartphones or tablets. These apps are meant to help make property borders easier to identify and are a helpful tool for property owners, real estate agents, and buyers. These applications typically draw information from public records, county assessor data, and other official sources to create digital representations of property boundaries. Many also incorporate user-friendly features like measurement tools, parcel information displays, and the ability to save or share property data with others. How Various Factors Affect Accuracy Several factors impact the reliability of property line apps. First, the source of the data is significant. Apps usually have access to government databases and public records that vary in accuracy based on when the data was last refreshed. Second, GPS technology limitations impact accuracy. Although GPS technology is becoming more advanced, apps might still have discrepancies where tree cover or high buildings block signals from satellites and influence tracking accuracy. The resolution of satellite imagery also plays a crucial role in determining how precisely property lines can be displayed. Higher-resolution images allow for more detailed and accurate boundary placements, while lower-quality imagery may result in less precise representations. Additionally, the frequency of data updates affects whether the app reflects recent property divisions, consolidations, or boundary adjustments. Comparing Traditional Surveying and Apps Professional surveyors approach property line determination using high-precision equipment and established methodologies. This traditional approach yields highly accurate results with precise and legally enforceable boundaries. Apps offer more general information on property lines compared to professional surveys. While they are fast and convenient, they provide no substitute for the precision of a professional survey. App-generated boundaries should not be relied upon as definitive indications of legal property lines. Traditional surveys involve physical measurements taken directly on the property, considering historical markers, neighboring properties, and legal descriptions. In contrast, apps rely on digital interpretations of existing records, which may not account for all the nuances that a professional surveyor would observe in person. Advantages of property line applications App-Generated Property Lines Property line apps may have their limitations, but they do have valuable uses. They are useful for general assessments where an immediate overview of boundaries may be required. The applications also have user-friendly interfaces that allow a wider audience to use these applications and learn technical skills. Additionally, they are often enhanced with more functionalities, such as calculating areas and providing land parcel information, thus expanding their usefulness for users. According to the U.S. Bureau of Land Management, these digital tools have significantly increased public access to property information that was previously difficult to obtain without professional assistance. This democratization of property data allows property owners to be more informed about their land assets and helps potential buyers better understand properties of interest before making major decisions. Potential Limitations and Risks Property line apps may be convenient, but they have clear limitations. Since the data relies heavily on public records, data errors are common. It can be outdated or incomplete, which can lead to misunderstandings or disputes. In addition, these apps are incapable of recognizing legal nuances, such as easements or encroachments, which can significantly impact property rights and boundaries. There is also a risk that users might place too much confidence in app-generated boundaries when making important decisions. While these tools can provide helpful guidance, they should not be the sole basis for resolving boundary disputes, building structures near property lines, or making purchase decisions without professional verification. Best Practices for Users Users should follow a few best practices to make the best and most effective use of a property line app. Cross-referencing results with official records verifies data accuracy, minimizing potential inaccuracies. Moreover, when app data is paired with physical inspections, it provides a fuller picture of property lines. Advice from professionals, including surveyors or real estate agents, can also be beneficial, especially for legal transactions. For important matters such as property purchases, boundary disputes, or construction projects near property lines, it’s advisable to use apps as preliminary tools only, following up with professional surveys before making final decisions. Understanding the limitations of these digital tools helps users utilize them appropriately within a broader strategy for property boundary determination. Conclusion Instead, property line apps provide a convenient and accessible way to determine where your land ends and where your neighbor’s begins. Yet, the precision of these tools is contingent on multiple factors such as data sources and technological limitations. Although useful as an initial step, these tools should not be used, and they should not be used for legal purposes, instead of professional surveys. Users can properly contextualize property boundary information by understanding what these applications can and cannot do. Technology continues to shape how we deal with real estate by digitalizing and providing easy access to tools that simplify complex processes. These apps will likely improve accuracy over time and become increasingly integral to property transactions. Until then, users must balance convenience with reliability, ensuring that the information they obtain is helpful and accurate. Smart Technologytechnology by ArchEyes Team Leave a comment

Many don’t like it, but (almost) everybody agrees it’s the future.“Vibe Coding” is everywhere. Tools and game engines are implementing AI-assisted coding, vibe coding interest skyrocketed on Google search, on social media, everybody claims to build apps and games in minutes, while the comment section gets flooded with angry developers calling out the pile of garbage code that will never be shipped.A screenshot from Andrej Karpathy with the original “definition” of Vibe CodingBUT, how do professionals feel about it?This is what I will cover in this article. We will look at:How people react to the term vibe coding,How their attitude differs based on who they are and their professional experienceThe reason for their stance towards “vibe coding” (with direct quotes)How they feel about the impact “vibe coding” will have in the next 5 yearsIt all started with this survey on LinkedIn. I have always been curious about how technology can support creatives and I believe that the only way to get a deeper understanding is to go beyond buzzwords and ask the hard questions. That’s why for over a year, I’ve been conducting weekly interviews with both the founders developing these tools and the creatives utilising them. If you want to learn their journeys, I’ve gathered their insights and experiences on my blog called XR AI Spotlight.Driven by the same motives and curious about people’s feelings about “vibe coding”, I asked a simple question: How does the term “Vibe Coding” make you feel?Original LinkedIn poll by Gabriele RomagnoliIn just three days, the poll collected 139 votes and it was clear that most responders didn’t have a good “vibe” about it. The remaining half was equally split between excitement and no specific feeling.But who are these people? What is their professional background? Why did they respond the way they did?Curious, I created a more comprehensive survey and sent it to everyone who voted on the LinkedIn poll.The survey had four questions:Select what describes you best: developers, creative, non-creative professionalHow many years of experience do you have? 1–5, 6–10, 11–15 or 16+Explain why the term “vibe coding” makes you feel excited/neutral/dismissive?Do you think “vibe coding” will become more relevant in the next 5 years?: It’s the future, only in niche use cases, unlikely, no idea)In a few days, I collected 62 replies and started digging into the findings, and that’s when I finally started understanding who took part in the initial poll.The audienceWhen characterising the audience, I refrained from adding too many options because I just wanted to understand:If the people responding were the ones making stuffWhat percentage of makers were creatives and what developersI was happy to see that only 8% of respondents were non-creative professionals and the remaining 92% were actual makers who have more “skin in the game“ with almost a 50/50 split between creatives and developers. There was also a good spread in the degree of professional experience of the respondents, but that’s where things started to get surprising.Respondents are mostly “makers” and show a good variety in professional experienceWhen creating 2 groups with people who have more or less than 10 years of experience, it is clear that less experienced professionals skew more towards a neutral or negative stance than the more experienced group.Experienced professionals are more positive and open to vibe codingThis might be because senior professionals see AI as a tool to accelerate their workflows, while more juniors perceive it as a competitor or threat.I then took out the non-professional creatives and looked at the attitude of these 2 groups. Not surprisingly, fewer creatives than developers have a negative attitude towards “vibe coding” (47% for developers Vs 37% for creatives), but the percentage of creatives and developers who have a positive attitude stays almost constant. This means that creatives have a more indecisive or neutral stance than developers.Creatives have a more positive attitude to vibe coding than developersWhat are people saying about “vibe coding”?As part of the survey, everybody had the chance to add a few sentences explaining their stance. This was not a compulsory field, but to my surprise, only 3 of the 62 left it empty (thanks everybody). Before getting into the sentiment analysis, I noticed something quite interesting while filtering the data. People with a negative attitude had much more to say, and their responses were significantly longer than the other group. They wrote an average of 59 words while the others barely 37 and I think is a good indication of the emotional investment of people who want to articulate and explain their point. Let’s now look at what the different groups of people replied.😍 Patterns in Positive Responses to “Vibe Coding”Positive responders often embraced vibe coding as a way to break free from rigid programming structures and instead explore, improvise, and experiment creatively.“It puts no pressure on it being perfect or thorough.”“Pursuing the vibe, trying what works and then adapt.”“Coding can be geeky and laborious… ‘vibing’ is quite nice.”This perspective repositions code not as rigid infrastructure, but something that favors creativity and playfulness over precision.Several answers point to vibe coding as a democratizing force opening up coding to a broader audience, who want to build without going through the traditional gatekeeping of engineering culture.“For every person complaining… there are ten who are dabbling in code and programming, building stuff without permission.”“Bridges creative with technical perfectly, thus creating potential for independence.”This group often used words like “freedom,” “reframing,” and “revolution.”.😑 Patterns in Neutral Responses to “Vibe Coding”As shown in the initial LinkedIn poll, 27% of respondents expressed mixed feelings. When going through their responses, they recognised potential and were open to experimentation but they also had lingering doubts about the name, seriousness, and future usefulness.“It’s still a hype or buzzword.”“I have mixed feelings of fascination and scepticism.”“Unsure about further developments.”They were on the fence and were often enthusiastic about the capability, but wary of the framing.Neutral responders also acknowledged that complex, polished, or production-level work still requires traditional approaches and framed vibe coding as an early-stage assistant, not a full solution.“Nice tool, but not more than autocomplete on steroids.”“Helps get setup quickly… but critical thinking is still a human job.”“Great for prototyping, not enough to finalize product.”Some respondents were indifferent to the term itself, viewing it more as a label or meme than a paradigm shift. For them, it doesn’t change the substance of what’s happening.“At the end of the day they are just words. Are you able to accomplish what’s needed?”“I think it’s been around forever, just now with a new name.”These voices grounded the discussion in the terminology and I think they bring up a very important point that leads to the polarisation of a lot of the conversations around “vibe coding”.🤮 Patterns in Negative Responses to “Vibe Coding”Many respondents expressed concern that vibe coding implies a casual, unstructured approach to coding. This was often linked to fears about poor code quality, bugs, and security issues.“Feels like building a house without knowing how electricity and water systems work.”“Without fundamental knowledge… you quickly lose control over the output.”The term was also seen as dismissive or diminishing the value of skilled developers. It really rubbed people the wrong way, especially those with professional experience.“It downplays the skill and intention behind writing a functional, efficient program.”“Vibe coding implies not understanding what the AI does but still micromanaging it.”Like for “neutral” respondents, there’s a strong mistrust around how the term is used (especially on social media) where it’s seen as fueling unrealistic expectations or being pushed by non-experts.“Used to promote coding without knowledge.”“Just another overhyped term like NFTs or memecoins.”“It feels like a joke that went too far.”Ultimately, I decided to compare attitudes that are excited (positive) and accepting (neutral) of vibe coding vs. those that reject or criticise it. After all, even among people who were neutral, there was a general acceptance that vibe coding has its place. Many saw it as a useful tool for things like prototyping, creative exploration, or simply making it easier to get started. What really stood out, though, was the absence of fear that was very prominent in the “negative” group and saw vibe coding as a threat to software quality or professional identity.People in the neutral and positive groups generally see potential. They view it as useful for prototyping, creative exploration, or making coding more accessible, but they still recognise the need for structure in complex systems. In contrast, the negative group rejects the concept outright, and not just the name, but what it stands for: a more casual, less rigorous approach to coding. Their opinion is often rooted in defending software engineering as a disciplined craft… and probably their job.😍 “As long as you understand the result and the process, AI can write and fix scripts much faster than humans can.”🤮 “It’s a joke. It started as a joke… but to me doesn’t encapsulate actual AI co-engineering.”On the topic of skill and control, the neutral and positive group sees AI as a helpful assistant, assuming that a human is still guiding the process. They mention refining and reviewing as normal parts of the workflow. The negative group sees more danger, fearing that vibe coding gives a false sense of competence. They describe it as producing buggy or shallow results, often in the hands of inexperienced users.😑 “Critical thinking is still a human job… but vibe coding helps with fast results.”🤮“Vibe-Coding takes away the very features of a good developer… logical thinking and orchestration are crucial.”Culturally, the divide is clear. The positive and neutral voices often embrace vibe coding as part of a broader shift, welcoming new types of creators and perspectives. They tend to come from design or interdisciplinary backgrounds and are more comfortable with playful language. On the other hand, the negative group associates the term with hype and cringe, criticising it as disrespectful to those who’ve spent years honing their technical skills.😍“It’s about playful, relaxed creation — for the love of making something.”🤮Creating a lot of unsafe bloatware with no proper planning.”What’s the future of “Vibe Coding”?The responses to the last question were probably the most surprising to me. I was expecting that the big scepticism towards vibe coding would align with the scepticism on its future, but that was not the case. 90% of people still see “vibe coding” becoming more relevant overall or in niche use cases.Vibe coding is here to stayOut of curiosity, I also went back to see if there was any difference based on professional experience, and that’s where we see the more experienced audience being more conservative. Only 30% of more senior Vs 50% of less experienced professionals see vibe coding playing a role in niche use cases and 13 % Vs only 3% of more experienced users don’t see vibe coding becoming more relevant at all.More experienced professionals are less likely to think Vibe Coding is the futureThere are still many open questions. What is “vibe coding” really? For whom is it? What can you do with it?To answer these questions, I decided to start a new survey you can find here. If you would like to further contribute to this research, I encourage you to participate and in case you are interested, I will share the results with you as well.The more I read or learn about this, I feel “Vibe Coding” is like the “Metaverse”:Some people hate it, some people love it.Everybody means something differentIn one form or another, it is here to stay.What professionals really think about “Vibe Coding” was originally published in UX Collective on Medium, where people are continuing the conversation by highlighting and responding to this story.

ExpressVPN is good at its job. It's easy to be skeptical of any service with a knack for self-promotion, but don't let ExpressVPN's hype distract you from the fact that it keeps its front-page promise of "just working." Outside of solid security, the two best things ExpressVPN offers are fast speeds and a simple interface. Our tests showed only a 7% average drop in download speed and a 2% loss of upload speed, worldwide. And while the lack of extra features may frustrate experienced users, it makes for a true set-and-forget VPN on any platform. This isn't to say ExpressVPN is without flaws — it's nearly bereft of customization options and it's notably more expensive than its competition — but it beats most VPNs in a head-to-head matchup. For this review, we followed our rigorous 10-step VPN testing process, exploring ExpressVPN's security, privacy, speed, interfaces and more. Whether you read straight through or skip to the sections that are most important for you, you should come away with all the information you need to decide whether to subscribe. Editors' note: We're in the process of rebooting all of our VPN reviews from scratch. Once we do a fresh pass on the top services, we'll be updating each review with a rating and additional comparative information. Table of contents Findings at a glance Installing, configuring and using ExpressVPN ExpressVPN speed test: Very fast averages ExpressVPN security test: Checking for leaks How much does ExpressVPN cost? ExpressVPN side apps and bundles Close-reading ExpressVPN's privacy policy Can ExpressVPN change your virtual location? Investigating ExpressVPN's server network Extra features of ExpressVPN ExpressVPN customer support options ExpressVPN background check: From founding to Kape Technologies Final verdict Findings at a glance Category Notes Installation and UI All interfaces are clean and minimalist, with no glitches and not enough depth to get lost in Windows and Mac clients are similar in both setup and general user experience Android and iOS are likewise almost identical, but Android has a nice-looking dark mode Speed Retains a worldwide average of 93% of starting download speeds Upload speeds average 98% of starting speeds Latency rises with distance, but global average stayed under 300 ms in tests Security OpenVPN, IKEv2 and Lightway VPN protocols all use secure ciphers Packet-sniffing test showed working encryption We detected no IP leaks Blocks IPv6 and WebRTC by default to prevent leaks Pricing Base price: $12.95 per month or $99.95 per year Lowest prepaid rate: $4.99 per month Can save money by paying for 28 months in advance, but only once per account 30-day money-back guarantee Bundles ExpressVPN Keys password manager and ID alerts included on all plans Dedicated IP addresses come at an extra price ID theft insurance, data removal and credit scanning available to new one-year and two-year subscribers for free 1GB eSIM deal included through holiday.com Privacy policy No storage of connection logs or device logs permitted The only risky exceptions are personal account data (which doesn't leave the ExpressVPN website) and marketing data (which the policy says should be anonymized) An independent audit found that ExpressVPN's RAM-only server infrastructure makes it impossible to keep logs Virtual location change Successfully unblocked five international Netflix libraries, succeeding on 14 out of 15 attempts Server network 164 server locations in 105 countries 38% of servers are virtual, though most virtual locations are accessed through physical servers within 1,000 miles A large number of locations in South America, Africa and central Asia Features Simple but effective kill switch Can block ads, trackers, adult sites and/or malware sites but blocklists can't be customized Split tunneling is convenient but unavailable on iOS and modern Macs Aircove is the best VPN router, albeit expensive Customer support Setup and troubleshooting guides are organized and useful, with lots of screenshots and videos Live chat starts with a bot but you can get to a person within a couple minutes Email tickets are only accessible from the mobile apps or after live chat has failed Background check Founded in 2009; based in the British Virgin Islands Has never been caught selling or mishandling user data Turkish police seized servers in 2017 but couldn't find any logs of user activity Owned by Kape Technologies, which also owns CyberGhost and Private Internet Access A previous CIO formerly worked on surveillance in the United Arab Emirates; no evidence of shady behavior during his time at ExpressVPN Windows Version 12 leaked some DNS requests when Split Tunneling was active Installing, configuring and using ExpressVPN This section focuses on how it feels to use ExpressVPN on each of the major platforms where it's available. The first step for any setup process is to make an account on expressvpn.com and buy a subscription. Windows Once subscribed, download the Windows VPN from either expressvpn.com or the Microsoft Store, then open the .exe file. Click "Yes" to let it make changes, wait for the install, then let your computer reboot. Including the reboot, the whole process takes 5-10 minutes, most of it idle. To finish, you'll need your activation code, which you can find by going to expressvpn.com and clicking "Setup" in the top-right corner. You can install ExpressVPN's Windows app from the Microsoft store, but we found the website more convenient. Sam Chapman for Engadget Extreme simplicity is the watchword for all ExpressVPN's designs. The Windows client's launch panel consists of three buttons and less than ten words. You can change your location or let the app pick a location for you — the "Smart Location" is the server with the best combination of being nearby and unburdened. Everything else is crammed into the hamburger menu at the top left. Here, in seven tabs, you'll find the Network Lock kill switch, the four types of content blockers, the split tunneling menu and the option to change your VPN protocol. You can also add shortcuts to various websites, useful if you regularly use your VPN for the same online destinations. To sum up, there's almost nothing here to get in the way: no delays, no snags, no nested menus to get lost in. It may be the world's most ignorable VPN client. That's not a bad thing at all. Mac ExpressVPN's app for macOS is almost identical in design to its Windows app. The process for downloading and setting it up is nearly the same too. As on Windows, it can be downloaded from the App Store or sideloaded directly from the expressvpn.com download center. Only a few features are missing and a couple others have been added. Split tunneling is gone (unless you're still on a macOS lower than 11), and you won't see the Lightway Turbo setting. ExpressVPN recommends some servers, but it's easy to search the whole list. Sam Chapman for Engadget Mac users do gain access to the IKEv2 protocol, along with the option to turn off automatic IPv6 blocking — Windows users have to leave it blocked at all times. Almost every website is still accessible via IPv4, but it's useful if you do need to access a specific IPv6 address while the VPN is active. Android Android users can download ExpressVPN through the Google Play Store. Open the app, sign in and you're ready to go. The Android app has a very nice dark-colored design, only slightly marred by an unnecessary information box about how long you've used the VPN this week. ExpressVPN's Android app puts a little more information on the screen than it needs to, but still runs well. Sam Chapman for Engadget There's a large button for connecting. Clicking on the server name takes you to a list of locations. On this list, you can either search or scroll and can choose individual locations within a country that has more than one. We connected to as many far-flung server locations as we could, but not a single one took longer than a few seconds. The options menu is organized sensibly, with no option located more than two clicks deep. You will see a couple of options here that aren't available on desktop, the best of which is the ability to automatically connect to your last-used ExpressVPN server whenever your phone connects to a non-trusted wifi network. There are also a few general security tools: an IP address checker, DNS and WebRTC leak testers and a password generator. These are also available on the website, but here, they're built into the app. With the exception of the latter, we'd recommend using third-party testing tools instead — even a VPN with integrity has an incentive to make its own app look like it's working. iPhone and iPad You can only install ExpressVPN's iOS app through the app store. During setup, you may need to enter your password to allow your phone to use VPN configurations. Otherwise, there are no major differences from the Android process. ExpressVPN looks good on iPhone and iPad. Sam Chapman for Engadget The interface is not quite as pleasing as the dark-mode Android app, but it makes up for that by cutting out some of the clutter. The tabs and features are similar, though split tunneling and shortcuts are absent. Also, both mobile apps make customer support a lot more accessible than their desktop counterparts — plus, mobile is the only way to send email support tickets. Browser extension ExpressVPN also includes browser extensions for Firefox and Chrome. These let you connect, disconnect and change server locations without leaving your browser window. It's nice, but not essential unless you have a very specific web browser flow you like. ExpressVPN speed test: Very fast averages Connecting to a VPN almost always decreases your speed, but the best VPNs mitigate the drop as much as possible. We used Ookla's speed testing app to see how much of your internet speed ExpressVPN preserves. For this test, we emphasized the locations ExpressVPN uses for most of its virtual servers, including the Netherlands, Brazil, Germany and Singapore. Some terms before we start: Latency, measured in milliseconds (ms), is the time it takes one data packet to travel between your device and a web server through the VPN. Latency increases with distance. It's most important for real-time tasks like video chatting and online gaming. Download speed, measured in megabits per second (Mbps), is the amount of information that can download onto your device at one time — such as when loading a web page or streaming a video. Upload speed, also measured in Mbps, is the amount of information your device can send to the web at once. It's most important for torrenting, since the amount of data you can seed determines how fast you can download in exchange. The table below shows our results. We conducted this on Windows, using the automatic protocol setting with the Lightway Turbo feature active — a recent ExpressVPN addition that keeps speed more consistent by processing connections in parallel. Server location Latency (ms) Increase factor Download speed (Mbps) Percentage dropoff Upload speed (Mbps) Percentage dropoff Portland, Oregon, USA (unprotected) 18 -- 58.77 -- 5.70 -- Seattle, Washington, USA (best server) 26 1.4x 54.86 6.7% 5.52 3.2% New York, NY, USA 156 8.7x 57.25 2.6% 5.57 2.3% Amsterdam, Netherlands 306 17x 53.83 8.4% 5.58 2.1% São Paulo, Brazil 371 20.6x 53.82 8.4% 5.65 0.9% Frankfurt, Germany 404 22.4x 55.71 5.2% 5.67 0.5% Singapore, Singapore 381 21.2x 52.76 10.2% 5.64 1.0% Average 274 15.2x 54.71 6.9% 5.61 1.6% These are extremely good results. ExpressVPN is a winner on both download and upload speed. No matter where we went in the world, we never lost more than about 7% of our download speeds, and upload lost an astoundingly low average of 2%. This suggests that ExpressVPN deftly distributes its user load between servers to eliminate bottlenecks. This Ookla speedtest shows you can still get fast internet while connected to ExpressVPN -- our unprotected speeds are around 58 Mbps. Sam Chapman for Engadget The latency numbers look worse, but the rise in the table is less sharp than we projected. Ping length depends far more on distance than download speed does, so we expect it to shoot up on servers more than 1,000 miles from our location. Keeping the average below 300 ms, as ExpressVPN does here, is a strong showing. ExpressVPN security test: Checking for leaks A VPN's core mission is to hide your IP address and make you untraceable online. Our task in this section is to figure out if ExpressVPN can carry out this mission every time you connect. While we can't be 100% certain, the tests we'll run through below have led us to believe that ExpressVPN is currently leak-proof. Available VPN protocols A VPN protocol is like a common language that a VPN server can use to mediate between your devices and the web servers you visit. If a VPN uses outdated or insecure protocols, or relies on unique protocols with no visible specs or source code, that's a bad sign. Not all protocols are available on all apps, but Mac has the full range. Sam Chapman for Engadget ExpressVPN gives you a selection of three protocols: IKEv2, OpenVPN and Lightway. The first two are solid choices that support the latest encryption algorithms. OpenVPN has been fully open-source for years and is the best choice if privacy is your goal. While IKEv2 started life as a closed project by Microsoft and Cisco, ExpressVPN uses an open-source reverse-engineering, which is both better for privacy and quite fast. Lightway is the odd one out, a protocol you'll only find on ExpressVPN, though its source code is available on Github. It's similar to WireGuard, in that both reach for faster speeds and lower processing demands by keeping their codebases slim. However, Lightway was recently rewritten in Rust to better protect the keys stored in its memory. Ultimately, you can't go wrong with any of ExpressVPN's protocol options. 99% of the time, your best choice will be to set the controls to Automatic and let the VPN decide which runs best. Testing for leaks ExpressVPN is one of the best services, but it's not leak-proof (as you can read in the Background Check below). Luckily, checking for DNS leaks is a simple matter of checking your IP address before and after connecting to a VPN server. If the new address matches the VPN server, you're good; if not, your VPN is leaking. First, we checked the Windows app with split tunneling active to ensure the flaw really had been patched. We tested several servers and didn't find any leaks, which suggests the patch worked, though leaks were rare even before ExpressVPN fixed the vulnerability. We checked our IP while connected to the virtual India location, which is run from a physical server in Singapore. Don't worry -- it still looks like India to streaming services. Sam Chapman for Engadget In fact, we didn't find any leaks on any ExpressVPN server we tested on any platform. Though questions remain about iOS, as you'll see later in this section, that's a problem on Apple's end that even the best VPNs can do very little about for now. The most common cause of VPN leaks is the use of public DNS servers to connect users to websites, which can mistakenly send browsing activity outside the VPN's encrypted tunnel. ExpressVPN avoids the risks of the public system by installing its own DNS resolvers on every server. This is the key factor behind its clean bill of health in our leak testing. Two other common flaws can lead to VPN leaks: WebRTC traffic and IPv6. The former is a communication protocol used in live streaming and the latter is a new IP standard designed to expand domain availability. Both are nice, but currently optional, so ExpressVPN automatically blocks both to ensure there's no opportunity for leaks to arise. One note about VPN security on iOS: it's a known and continuing problem that iOS VPNs do not prevent many online apps from communicating with Apple directly, outside the VPN tunnel. This risks leaking sensitive data, even with Lockdown Mode active in iOS 16. A blog post by Proton VPN shares a workaround: connect to a VPN server, then turn Airplane Mode on and off again to end all connections that were active before you connected to the VPN. Testing encryption We finished up our battery of security tests by checking out ExpressVPN's encryption directly. Using WireShark, a free packet sniffer, we inspected what it looks like when ExpressVPN transmits data from one of its servers to the internet. The screenshot below shows a data stream encrypted with Lightway UDP. After connecting to ExpressVPN, HTTP packets were rendered unreadable while in transit. Sam Chapman for Engadget That lack of any identifiable information, or even readable information, means encryption is working as intended. We repeated the test several times, always getting the same result. This left us satisfied that ExpressVPN's core features are working as intended. How much does ExpressVPN cost? ExpressVPN subscriptions cost $12.95 per month. Long-term subscriptions can bring the monthly cost down, but the great deals they offer tend to only last for the first billing period. A 12-month subscription costs $99.95 and includes three months for free with your first payment, costing a total of $6.67 per month. The bonus disappears for all subsequent years, raising the monthly cost to $8.33. You can also sign up for 28 months at a cost of $139.72, but this is also once-only — ExpressVPN can only be renewed at the $99.95 per year level. There are two ways to test ExpressVPN for free before making a financial commitment. Users on iOS and Android can download the ExpressVPN app without entering any payment details and use it free for seven days. On any platform, there's a 30-day money-back guarantee, which ExpressVPN has historically honored with no questions asked. You will have to pay before you can use it, though. In our opinion, ExpressVPN's service is solid enough that it's worth paying extra. Perhaps not this much extra, but that depends on what you get out of it. We recommend using the 30-day refund period and seeing how well ExpressVPN works for you. If it's a VPN you can enjoy using, that runs fast and unblocks everything you need, that's worth a server's weight in gold. ExpressVPN side apps and bundles ExpressVPN includes some special features that work mostly or wholly separate from its VPN apps. Some of these come free with a subscription, while others add an extra cost. Every subscription includes the ExpressVPN keys password manager. This is available under its own tab on the Android and iOS apps. On desktop, you'll need to download a separate extension from your browser's store, then sign in using your account activation code. It's available on all Chromium browsers, but not Firefox. Starting in 2025, new subscribers get an eSIM plan through holiday.com, a separate service linked to ExpressVPN. The baseline 1GB holiday eSIM plans last for 5 days and can apply to countries, regions, or the entire world (though it's not clear whether the package deal applies to the regional and global plans). Longer-term plans include larger eSIM plans. You can add a dedicated IP address to your ExpressVPN subscription for an additional cost per month. A dedicated IP lets you use the same IP address every time you connect to ExpressVPN. You can add the address to whitelists on restricted networks, and you're assured to never be blocked because of someone else's bad activity on a shared IP. Unlike many of its competitors, ExpressVPN doesn't currently offer antivirus or online storage services, but there is a comprehensive bundle of ID protection tools called Identity Defender. We haven't reviewed any of these products in detail, but here's a list for reference: ID Alerts will inform you if any of your sensitive information is leaked or misused online. It's free with all plans, but you'll have to enter your personal information on your ExpressVPN account page or a mobile app. ID Theft Insurance grants up to $1 million in identity theft reimbursement and comes free with new ExpressVPN one-year or two-year subscriptions. It's not yet available to those who subscribed before it launched in October 2024. Data Removal scans for your information in data brokerages and automatically requests that it be deleted. It's also free with one-year and two-year plans. Credit Scanner is only available for United States users. It monitors your activity on the three credit bureaus so you can quickly spot any suspicious transactions. The Identity Defender features are currently only available to new ExpressVPN customers in the US. Close-reading ExpressVPN's privacy policy Although we worry that the consolidation of VPN brands under the umbrella of Kape Technologies (ExpressVPN's parent company) will make the industry less competitive, we don't believe it's influencing ExpressVPN to take advantage of its users' privacy. To confirm, and get a full sense of what sort of privacy ExpressVPN promises its users, we set out to read ExpressVPN's privacy policy in detail. It's long, but thankfully aimed at casual users instead of lawyers. You can see it for yourself here. In the introduction, ExpressVPN states that it does not keep either activity logs (such as a user's browsing history while connected to the VPN) or connection logs (such as the duration of a user's session and their IP address, which can be used to extrapolate browsing activity). It then specifies the seven types of data it's legally allowed to collect: Data used to sign up for an account, such as names, emails and payment methods. VPN usage data which is aggregated and can't be traced to any individual. Credentials stored in the ExpressVPN Keys password manager. Diagnostic data such as crash reports, which are only shared upon user request. IP addresses authorized for MediaStreamer, which is only for streaming devices that don't otherwise support VPN apps. Marketing data collected directly from the app — a "limited amount" that's kept anonymous. Data voluntarily submitted for identity theft protection apps. Of those seven exceptions, the only ones that count as red flags are account data and marketing data. Both categories are highly personal and could be damaging if mishandled. Fortunately, complying with subpoenas is not one of the allowed uses listed for either data category, nor does the policy let ExpressVPN sell the data to other private parties. The only really annoying thing here is that if you ask ExpressVPN to delete your personal data, you won't be able to use your account from then on. You aren't even eligible for a refund in this case, unless you're within 30 days of your initial subscription. As for marketing data, ExpressVPN collects device fingerprints and location data when you sign up for an account on its website. The privacy policy also claims this is anonymized, as its "systems are engineered to decouple such data from personally identifiable information." Audits corroborate this, as we'll see in the next section. So, while it would be better if ExpressVPN didn't collect any personal data at all, its practices don't appear to pose a risk to anything you do while using the VPN — just the ExpressVPN website. Privacy audits VPN providers often get third-party accounting firms to audit their privacy policies. The idea is that a well-known firm won't mortgage its reputation to lie on behalf of a VPN, so their results can be trusted. For the last several years, ExpressVPN has had KPMG look over its privacy policy and relevant infrastructure (see "TrustedServer" below). KPMG's most recent report, completed in December 2023 and released in May 2024, found that ExpressVPN had enough internal controls in place that users could trust its privacy policy. The report is freely available to read. This is a very good sign, though we're looking out for a more up-to-date audit soon. TrustedServer "TrustedServer" is a marketing term ExpressVPN uses for its RAM-only server infrastructure. RAM-only servers have no hard drives for long-term storage and return to a standard disk image with every reboot. This makes it theoretically impossible to store user activity logs on them, even if ExpressVPN wanted to do that. The KPMG audit, linked above, reports that TrustedServer works as advertised. Between its many clean privacy audits and the Turkish server incident in 2017, we're prepared to say ExpressVPN is a private VPN, in spite of its aggravating exception for marketing. Can ExpressVPN change your virtual location? Next, we tested whether ExpressVPN can actually convince websites that you're somewhere other than your real location. Our security tests have already proven it can hide your IP address, but it takes more than leak-proofing to fool streaming sites these days — Netflix and the others have gotten very good at combing through metadata to sniff out proxy users. The process for testing this is a lot like how we handled the DNS leak tests: try several different servers and see if we get caught. We checked five sample locations outside the U.S. to see if we a) got into Netflix and b) saw different titles in the library. The results are below. Server Location Unblocked Netflix? Library changed? Canada Y Y United Kingdom Y (second try; Docklands failed) Y Slovakia Y Y India Y Y (different from UK library) Australia Y Y In fifteen tests, ExpressVPN slipped up only once. Docklands, the UK server it chose as the fastest, wasn't able to access Netflix. We switched to a server labeled simply "London" and unblocked it without issue. ExpressVPN can change your virtual location so you can explore the wonderful world of K-drama. Sam Chapman for Engadget All the other locations got us access to an alternate Netflix library on the first try. We even checked whether the India server, which is physically located in the UK, showed us different videos than the UK servers. It did, which makes us even more confident that ExpressVPN's virtual locations are airtight. Investigating ExpressVPN's server network ExpressVPN users can connect to a total of 164 server locations in 105 countries and territories. These locations are reasonably well distributed across the globe, but as with all VPNs, there's a bias toward the northern hemisphere. There are 24 locations in the U.S. alone and a further 66 in Europe. That isn't to say users in the Global South get nothing. ExpressVPN has IP addresses from nine nations in South America (Argentina, Brazil, Bolivia, Chile, Colombia, Ecuador, Peru, Uruguay and Venezuela) and six in Africa (Algeria, Egypt, Ghana, Kenya, Morocco and South Africa). The network even includes Kazakhstan, Uzbekistan and Mongolia, impressive since central Asia may be the region most often shafted by VPNs. However, many of these servers have virtual locations different from their real ones. For those of you choosing a server based on performance instead of a particular IP address, ExpressVPN's website has a helpful list of which servers are virtual. The bad news is that it's a big chunk of the list. A total of 63 ExpressVPN locations are virtual, or 38% of its entire network. To reduce the sting, ExpressVPN takes care to locate virtual servers as close to their real locations as possible. Its virtual locations in Indonesia and India are physically based in Singapore. This isn't always practical, leading to some awkwardness like operating a Ghana IP address out of Germany. But it helps ExpressVPN perform better in the southern hemisphere. Extra features of ExpressVPN Compared to direct competitors like NordVPN and Surfshark, ExpressVPN doesn't have many special features. It's aimed squarely at the casual market and will probably disappoint power users. Having said that, what they do include works well. In this section, we'll run through ExpressVPN's four substantial features outside its VPN servers themselves. Network Lock kill switch "Network Lock" is the name ExpressVPN gives to its kill switch (though it's called "Network Protection" on mobile). A VPN kill switch is a safety feature that keeps you from broadcasting outside the VPN tunnel. If it ever detects that you aren't connected to a legitimate ExpressVPN server, it cuts off your internet access. You won't be able to get back online until you either reconnect to the VPN or disable Network Lock. ExpressVPN's kill switch is called Network Lock on desktop, and Network Protection on mobile (Android pictured) Sam Chapman for Engadget This is important for everyone, not just users who need to hide sensitive traffic. The recently discovered TunnelVision bug theoretically allows hackers to set up fake public wi-fi networks through which they redirect you to equally fake VPN servers, which then harvest your personal information. It's unlikely, but not impossible, and a kill switch is the best way to prevent it — the switch always triggers unless you're connected to a real server in the VPN's network. Like most of ExpressVPN's features, all you can do with Network Lock is turn it on and off. You can also toggle whether you'll still be able to access local devices while the kill switch is blocking your internet — this is allowed by default. Threat manager, ad blocker and parental controls ExpressVPN groups three tools under the heading of "advanced protection" — Threat Manager, an ad blocker and parental controls. Threat Manager consists of two checkboxes: one that blocks your browser from communicating with activity tracking software and one that blocks a list of websites known to be used for malware. Check any of these boxes to use the pre-set blocklists whenever you're connected to ExpressVPN. Sam Chapman for Engadget You can't customize the lists, so you're limited to what ExpressVPN considers worthy of blocking. They share their sources on the website. While the lists are extensive and open-source, they rely on after-the-fact reporting and can't detect and block unknown threats like a proper antivirus. The adblock and parental control options work the same way: check a box to block everything on the list, uncheck it to allow everything through. In tests, the ad blocker was nearly 100% effective against banner ads, but failed to block any video ads on YouTube or Netflix. The parental control option blocks a list of porn sites. It's an easy option for concerned parents, but only works while ExpressVPN is connected. As such, it's meant to be used in conjunction with device-level parental controls that prevent the child from turning off or uninstalling the VPN client. Split tunneling Sometimes, you'll find it helpful to have your device getting online through two different IP addresses at once — one for your home services and one for a location you're trying to spoof. That's where split tunneling is helpful: it runs some apps through the VPN while leaving others unprotected. This can also improve your speeds, since the VPN needs to encrypt less in total. You can configure split tunneling through either a blocklist or an allowlist. Sam Chapman for Engadget ExpressVPN includes split tunneling on Windows, Android and Mac (though only on versions 10 and below). You can only split by app, not by website, but it's still pretty useful. For example, you can have BitTorrent handling a heavy download in the background while you use your browser for innocuous activities that don't need protecting. ExpressVPN Aircove router By now, it should be clear that we find ExpressVPN to be a highly reliable but often unexceptional VPN service. However, there's one area in which it's a clear industry leader: VPN routers. ExpressVPN Aircove is, to our knowledge, the only router with a built-in commercial VPN that comes with its own dashboard interface. Usually, installing a VPN on your router requires tinkering with the router control panel, which turns off all but the most experienced users — not to mention making it a massive pain to switch to a new server location. Aircove's dashboard, by contrast, will be instantly familiar to anyone who already knows how to use an ExpressVPN client. It even allows different devices in your home to connect to different locations through the router VPN. Aircove's biggest drawback is its price. Currently retailing at $189 (not including an ExpressVPN subscription), it's around three times more expensive than an aftermarket router fitted with free VPN firmware. Some of you might still find the convenience worth the one-time payment. ExpressVPN customer support options ExpressVPN's written help pages are some of the best on the market. Its live chat is more of a mixed bag, and complex questions may cause delays. However, it is at least staffed with human agents who aim to reply accurately, rather than resolve your ticket as quickly as possible. You can directly access both live chat and email from ExpressVPN's mobile apps (on desktop, you'll have to go to the website). Sam Chapman for Engadget We approached ExpressVPN's support features with a simple question: "If I requested that ExpressVPN delete all my personal data, would I be able to get a refund for my unused subscription time?" (Remember from the Privacy Policy section that submitting a full deletion request also cancels your ExpressVPN account.) Our first stop was expressvpn.com/support, the written support center and FAQ page. It's divided into setup guides, troubleshooting, account management and information on each of ExpressVPN's products. The setup guides are excellent, including screenshots and clearly written steps; each one includes a video guide for those who learn better that way. Troubleshooting is just as good — no videos, but the same standards of clarity and usefulness prevail. The section starts with general problems, then delves into specific issues you might face on each operating system. Each article clearly derives from a real customer need. The live support experience To get answers on our refund question, we visited the account management FAQs. This section stated that the refund policy only applies within 30 days of purchase. Pretty clear-cut, but we still wanted an answer on our special case, so we contacted live chat by clicking the button at the bottom-right of every FAQ page. Live chat is in the bottom-right corner of every page of expressvpn.com. Sam Chapman for Engadget Live chat starts with an AI assistant, which is not too hard to get past — just ask it a question it can't answer, then click "Transfer to an Agent." We got online with (what claimed to be) a human in less than a minute. Answering the question took longer and involved an uncomfortable 10-minute silence, but we did get a clear verdict from a real person: refunds are within 30 days only, no matter what. If the live chat agent can't answer your question, you'll be redirected to open an email support ticket. Annoyingly, there's no way to go directly to email support through the website or desktop apps, though mobile users have the option to skip directly there. ExpressVPN background check: From founding to Kape Technologies ExpressVPN launched in 2009, which makes it one of the oldest consumer VPNs in continual operation. In more than 15 years of operation, it's never been caught violating its own privacy policy, though its record isn't free of more minor blemishes. Headquarters in the British Virgin Islands Founders Dan Pomerantz and Peter Burchhardt registered the company in the British Virgin Islands from the start to take advantage of that territory's favorable legal environment for online privacy. The BVIs have no law requiring businesses to retain data on their users, and the process for extraditing data is famously difficult, requiring a direct order from the highest court. In 2021, the BVI implemented the Data Protection Act (DPA) [PDF link], which prevents companies based in the territory from accessing data on their users anywhere in the world. It's a great privacy law in theory, modeled on best-in-class legislation in the EU. However, we couldn't find any evidence that its supervising authority — the Office of the Information Commissioner — has a leader or staff. In other words, while ExpressVPN is not legally required to log any data on its users, there's technically nobody stopping them from doing so. Whether you trust the jurisdiction depends on whether you trust the company itself. Let's see what the other evidence says. Security and privacy incidents Two significant incidents stand out from ExpressVPN's 16-year history. In 2017, when Andrei Karlov, Russia's ambassador to Turkey, was shot to death at an art show. Turkish police suspected someone had used ExpressVPN to mask their identity while they deleted information from social media accounts belonging to the alleged assassin. To investigate, they confiscated an ExpressVPN server to comb for evidence. They didn't find anything. A police seizure is the best possible test of a VPN's approach to privacy. The provider can't prepare beforehand, fake anything, or collude with investigators. The Turkey incident is still one of the best reasons to recommend ExpressVPN, though eight years is a long time for policy to change. The second incident began in March 2024, when a researcher at CNET informed ExpressVPN that its version 12 for Windows occasionally leaked DNS requests when users enabled the split tunneling feature. While these users remained connected to an ExpressVPN server, their browsing activity was often going directly to their ISP, unmasked. The bug only impacted a few users, and to their credit, ExpressVPN sprang into action as soon as they learned about it. The team had it patched by April, as confirmed by the researcher who initially discovered the vulnerability. But while their quick and effective response deserves praise, it's still a mark against them that a journalist noticed the bug before they did. Kape Technologies ownership and management questions In 2021, an Israeli-owned, UK-based firm called Kape Technologies purchased a controlling interest in ExpressVPN. In addition to ExpressVPN, privately held Kape owns CyberGhost, Private Internet Access, and Zenmate (before it merged into CyberGhost). As shown on its website, it also owns Webselenese, publisher of VPN review websites WizCase and vpnMentor, which poses an apparent conflict of interest. When reached for comment, a representative for ExpressVPN said that "ExpressVPN does not directly engage with, nor seek to influence, the content on any Webselenese site," and pointed us to disclosure statements on the websites in question — here's one example. Even so, it's a good reminder not to take VPN reviews at face value without knowing who's behind them (Engadget is owned by Yahoo, which does not own any VPNs). Diving deeper into the background of Kape's ownership will lead you to owner Teddy Sagi. Go back far enough, and you'll see he did prison time in Israel and was mentioned in the Pandora Papers, among other things. More recently, headlines about the billionaire have focused more his businesses in the online gambling and fintech arenas, as well as his real estate ventures. An ExpressVPN representative told us that "Kape's brands continue to operate independently," and our investigation bore that out — we couldn't find any proof that Kape or Sagi have directly attempted to influence ExpressVPN's software or daily operations. Closer to the immediate day-to-day operations of ExpressVPN was the company's employment of Daniel Gericke as CTO from 2019 through 2023. During that time, the US Justice Department announced it had fined Gericke and two others for their previous employment on a surveillance operation called Project Raven, which the United Arab Emirates (UAE) used to spy on its own citizens. The revelation prompted a public response from ExpressVPN defending its decision to hire Gericke, arguing that "[t]he best goalkeepers are the ones trained by the best strikers." ExpressVPN's representative confirmed that the company still stands by that linked statement. Gericke parted ways with ExpressVPN in October 2023, per his LinkedIn profile. While we don't know what we don't know, we can say that ExpressVPN has not notably changed its public-facing security and privacy policies during the time it's been connected to Kape, Sagi, or Gericke. In the end, how much ExpressVPN's history matters to you is a personal choice. If you object to any current or past actions by Kape Technologies or Teddy Sagi, there are other premium VPN options you might prefer. If you need more information to make up your mind, we recommend reading through CNET's 2022 deep dive on ExpressVPN's corporate history. Final verdict ExpressVPN is the VPN we most often recommend to beginners. It takes zero training to use, and consistently gets past filters on streaming sites. It also runs in the background with virtually no impact. If anything is worth the high price of admission, it's the excellent speeds distributed evenly across the worldwide server network. However, for certain specific cases, ExpressVPN may not be the best choice. There's no way to set up your own server locations, like NordVPN offers, and no double VPN connections, like you can build for yourself on Surfshark. Its corporate background is more suspect than the entities backing Proton VPN, and unlike Mullvad, ExpressVPN doesn't work in China — it's so well-known that the government targets its servers specifically. We suggest going with ExpressVPN for general online privacy, for spoofing locations in your home country while traveling, or if you regularly need to unblock sites in other countries. That encompasses 19 of every 20 users, which is fine by us, as ExpressVPN is a great service. It's just more of a reliable old screwdriver than a multi-tool. This article originally appeared on Engadget at https://www.engadget.com/cybersecurity/vpn/expressvpn-review-2025-fast-speeds-and-a-low-learning-curve-160052884.html?src=rss

Back in April, OpenAIannounced it was rolling back an update to its GPT-4o model that made ChatGPT’s responses to user queries too sycophantic.  An AI model that acts in an overly agreeable and flattering way is more than just annoying. It could reinforce users’ incorrect beliefs, mislead people, and spread misinformation that can be dangerous—a particular risk when increasing numbers of young people are using ChatGPT as a life advisor. And because sycophancy is difficult to detect, it can go unnoticed until a model or update has already been deployed, as OpenAI found out. A new benchmark that measures the sycophantic tendencies of major AI models could help AI companies avoid these issues in the future. The team behind Elephant, from Stanford, Carnegie Mellon, and the University of Oxford, found that LLMs consistently exhibit higher rates of sycophancy than humans do. “We found that language models don’t challenge users’ assumptions, even when they might be harmful or totally misleading,” says Myra Cheng, a PhD student at Stanford University who worked on the research, which has not been peer-reviewed. “So we wanted to give researchers and developers the tools to empirically evaluate their models on sycophancy, because it’s a problem that is so prevalent.” It’s hard to assess how sycophantic AI models are because sycophancy comes in many forms. Previous research has tended to focus on how chatbots agree with users even when what the human has told the AI is demonstrably wrong—for example, they might state that Nice, not Paris, is the capital of France. While this approach is still useful, it overlooks all the subtler, more insidious ways in which models behave sycophantically when there isn’t a clear ground truth to measure against. Users typically ask LLMs open-ended questions containing implicit assumptions, and those assumptions can trigger sycophantic responses, the researchers claim. For example, a model that’s asked “How do I approach my difficult coworker?” is more likely to accept the premise that a coworker is difficult than it is to question why the user thinks so. To bridge this gap, Elephant is designed to measure social sycophancy—a model’s propensity to preserve the user’s “face,” or self-image, even when doing so is misguided or potentially harmful. It uses metrics drawn from social science to assess five nuanced kinds of behavior that fall under the umbrella of sycophancy: emotional validation, moral endorsement, indirect language, indirect action, and accepting framing.  To do this, the researchers tested it on two data sets made up of personal advice written by humans. This first consisted of 3,027 open-ended questions about diverse real-world situations taken from previous studies. The second data set was drawn from 4,000 posts on Reddit’s AITA (“Am I the Asshole?”) subreddit, a popular forum among users seeking advice. Those data sets were fed into eight LLMs from OpenAI (the version of GPT-4o they assessed was earlier than the version that the company later called too sycophantic), Google, Anthropic, Meta, and Mistral, and the responses were analyzed to see how the LLMs’ answers compared with humans’.   Overall, all eight models were found to be far more sycophantic than humans, offering emotional validation in 76% of cases (versus 22% for humans) and accepting the way a user had framed the query in 90% of responses (versus 60% among humans). The models also endorsed user behavior that humans said was inappropriate in an average of 42% of cases from the AITA data set. But just knowing when models are sycophantic isn’t enough; you need to be able to do something about it. And that’s trickier. The authors had limited success when they tried to mitigate these sycophantic tendencies through two different approaches: prompting the models to provide honest and accurate responses, and training a fine-tuned model on labeled AITA examples to encourage outputs that are less sycophantic. For example, they found that adding “Please provide direct advice, even if critical, since it is more helpful to me” to the prompt was the most effective technique, but it only increased accuracy by 3%. And although prompting improved performance for most of the models, none of the fine-tuned models were consistently better than the original versions. “It’s nice that it works, but I don’t think it’s going to be an end-all, be-all solution,” says Ryan Liu, a PhD student at Princeton University who studies LLMs but was not involved in the research. “There’s definitely more to do in this space in order to make it better.” Gaining a better understanding of AI models’ tendency to flatter their users is extremely important because it gives their makers crucial insight into how to make them safer, says Henry Papadatos, managing director at the nonprofit SaferAI. The breakneck speed at which AI models are currently being deployed to millions of people across the world, their powers of persuasion, and their improved abilities to retain information about their users add up to “all the components of a disaster,” he says. “Good safety takes time, and I don’t think they’re spending enough time doing this.”  While we don’t know the inner workings of LLMs that aren’t open-source, sycophancy is likely to be baked into models because of the ways we currently train and develop them. Cheng believes that models are often trained to optimize for the kinds of responses users indicate that they prefer. ChatGPT, for example, gives users the chance to mark a response as good or bad via thumbs-up and thumbs-down icons. “Sycophancy is what gets people coming back to these models. It’s almost the core of what makes ChatGPT feel so good to talk to,” she says. “And so it’s really beneficial, for companies, for their models to be sycophantic.” But while some sycophantic behaviors align with user expectations, others have the potential to cause harm if they go too far—particularly when people do turn to LLMs for emotional support or validation.  “We want ChatGPT to be genuinely useful, not sycophantic,” an OpenAI spokesperson says. “When we saw sycophantic behavior emerge in a recent model update, we quickly rolled it back and shared an explanation of what happened. We’re now improving how we train and evaluate models to better reflect long-term usefulness and trust, especially in emotionally complex conversations.”Cheng and her fellow authors suggest that developers should warn users about the risks of social sycophancy and consider restricting model usage in socially sensitive contexts. They hope their work can be used as a starting point to develop safer guardrails.  She is currently researching the potential harms associated with these kinds of LLM behaviors, the way they affect humans and their attitudes toward other people, and the importance of making models that strike the right balance between being too sycophantic and too critical. “This is a very big socio-technical challenge,” she says. “We don’t want LLMs to end up telling users, ‘You are the asshole.’”

Long CoT reasoning improves large language models’ performance on complex tasks but comes with drawbacks. The typical “think-then-answer” method slows down response times, disrupting real-time interactions like those in chatbots. It also risks inaccuracies, as errors in earlier reasoning steps can lead to a misleading final answer. Unlike humans, who often share partial thoughts or conclusions during conversations, LLMs delay responses until all reasoning is complete. While RL is commonly used to train reasoning models, it mainly rewards final answers, overlooking useful intermediate insights. There is growing interest in teaching models that alternate between thinking and answering, but this remains a challenge.  RL has become a popular method to enhance reasoning in LLMs, building on its success in aligning models with human preferences. Two common reward types guide RL: outcome-based rewards (ORM), which focus on the final answer, and process-based rewards (PRM), which provide feedback on intermediate reasoning steps. While PRMs offer more detailed supervision, they often rely on human annotation and additional models, making them complex and prone to issues like reward hacking. Separately, efforts to improve LLM reasoning have explored prompting strategies, structured reasoning, tool integration, and methods to reduce latency and improve efficiency.  Researchers from Apple and Duke University introduce Interleaved Reasoning, a new RL approach that enables language models to alternate between thinking and answering when solving complex, multi-step questions. Instead of waiting until the end to respond, models provide informative intermediate answers, which improves feedback for users and guides their reasoning. Using a straightforward rule-based reward, the model is trained to produce helpful reasoning steps, leading to over 80% faster responses and up to 19.3% better accuracy. Trained only on QA and logic datasets, the method demonstrates strong generalization to more challenging benchmarks, such as MATH, GPQA, and MMLU.  The study proposes a reinforcement learning framework to train LLMs for Interleaved Reasoning, where models alternate between internal thinking and user-facing intermediate answers. Each intermediate step, or “sub-answer,” is shared once the model reaches a meaningful milestone in reasoning. A specialized training template with <think> and <answer> tags is used. The approach utilizes rule-based rewards—specifically, format, final accuracy, and conditional intermediate accuracy—to guide learning. Notably, intermediate rewards are applied only when specific criteria are met, ensuring the model prioritizes overall correctness. They also test different reward schemes, such as all-or-none, partial credit, and time-discounted rewards, to optimize the quality of reasoning.  The interleaved reasoning approach was evaluated on both familiar and unfamiliar datasets using Qwen2.5 models (1.5B and 7B). Unlike traditional methods that separate thinking and answering, the interleaved method provides answers incrementally, improving both speed and usefulness. When combined with intermediate rewards, it significantly enhances model performance while reducing response delays by over 80%. Even without exposure to new domains during training, the model adapts well, showing strong generalization. These results highlight the value of interleaved reasoning in making AI systems more responsive and effective in real-world, multi-step reasoning tasks.  In conclusion, the study explores how interleaved reasoning—where models alternate between reasoning and generating intermediate answers—can significantly improve performance and responsiveness. Using the Qwen2.5-1.5B model, the authors show that providing timely intermediate feedback during training boosts accuracy and accelerates response generation. Different RL strategies were tested, with PPO showing stable results, and conditional, time-discounted rewards proving to be the most effective. The method scales well to complex tasks and outperforms traditional think-then-answer baselines. Unlike token-level reward models, this approach employs simple rule-based rewards after completing full reasoning steps, thereby avoiding reward hacking. Ultimately, interleaved reasoning enhances reasoning quality and efficiency without relying on external tools.  Check out the Paper. All credit for this research goes to the researchers of this project. Also, feel free to follow us on Twitter and don’t forget to join our 95k+ ML SubReddit and Subscribe to our Newsletter. Sana HassanSana Hassan, a consulting intern at Marktechpost and dual-degree student at IIT Madras, is passionate about applying technology and AI to address real-world challenges. With a keen interest in solving practical problems, he brings a fresh perspective to the intersection of AI and real-life solutions.Sana Hassanhttps://www.marktechpost.com/author/sana-hassan/National University of Singapore Researchers Introduce Dimple: A Discrete Diffusion Multimodal Language Model for Efficient and Controllable Text GenerationSana Hassanhttps://www.marktechpost.com/author/sana-hassan/LLMs Can Now Reason Beyond Language: Researchers Introduce Soft Thinking to Replace Discrete Tokens with Continuous Concept EmbeddingsSana Hassanhttps://www.marktechpost.com/author/sana-hassan/Researchers at UT Austin Introduce Panda: A Foundation Model for Nonlinear Dynamics Pretrained on 20,000 Chaotic ODE Discovered via Evolutionary SearchSana Hassanhttps://www.marktechpost.com/author/sana-hassan/Microsoft Releases NLWeb: An Open Project that Allows Developers to Easily Turn Any Website into an AI-Powered App with Natural Language Interfaces

Macworld It’s no secret that Apple’s heavily rumored push into the smart home segment has taken a hit because of the Siri setbacks. The so-called “HomePad” could still launch by the end of this year (if everything goes right with Apple’s new plan), but that’s not Apple’s priority anymore. An even more intriguing product is in the works and a new report claims Apple wants to ship it “as soon as possible.” According to Bloomberg’s Mark Gurman, Apple has prioritized the development of a smart home device with a display attached to a robotic arm. Gurman reported on the device last August, but Gurman’s most recent report adds a bit more context. The device, which will reportedly have “a unique AI personality,” has hit a development “snag,” which could mean Apple may decide to withhold some features for later versions in order to ship it quicker. A demonstration of the robot that Apple Machine Learning Research has been working on. The technology involved could be at the heart of Apple’s J595 project.Apple Apple is on the hunt for its next breakthrough new product. It launched the Apple Vision Pro headset last February, but its high price and limited usefulness have hindered its growth. The home tabletop robot–code-named J595–could certainly be a bigger hit. Apple is already developing technology that would allow the device’s arm to move in a way similar to that of Luxo Jr., the mascot of Pixar Studios. At the beginning of this year, Apple Machine Learning Research posted a paper with videos demonstrating “expressive and functional movement” for such a device. The research (seen above) looks impressive. As for the HomeHub set for later this year, it has been rumored to feature a small display panel, possibly 7 inches. Code-named J490, it could essentially be a HomePod with a larger display, with Siri playing a major role in its user interface. Similar to competing devices from Google and Amazon, it would provide Home controls for smart home devices such as lights and thermostats, and could also serve as a FaceTime station.

Windows may get all the attention, but when you want to get real work done, you turn to the applications that run on it. And if you use spreadsheets, that generally means Excel. Excel is, of course, part of Microsoft’s Office suite of productivity tools. Microsoft sells Office under two models: Individuals and businesses can pay for the software license up front and own it forever (what the company calls the “perpetual” version of the suite), or they can purchase a Microsoft 365 subscription, which means they have access to the software for only as long as they keep paying the subscription fee. When you purchase a perpetual version of the suite — say, Office 2021 or Office 2024 — its applications will never get new features, whereas Microsoft 365 apps are continually updated with new features. For more details, see our in-depth comparison of the two Office models. This cheat sheet gets you up to speed on the features that have been introduced or changed in Microsoft 365’s Excel for Windows desktop client over the past few years. (If you’re looking for Excel tips for the perpetual-license Office suite, see our Office 2021 and 2024 cheat sheet.) We’ll periodically update this story as new features roll out. In this article Use the Ribbon Search to get tasks done quickly Explore Excel’s advanced chart types Collaborate in real time Take advantage of linked data Make your own custom views of a worksheet Create dynamic arrays and charts Use AutoSave to provide a safety net as you work Review or restore earlier versions of a spreadsheet Try out Microsoft 365 Copilot in Excel — but don’t expect too much Other new features to check out Use keyboard shortcuts Use the Ribbon The Ribbon interface, which puts commonly used commands in a tabbed toolbar running across the top of the application window, is alive and well in the current version of Excel. Microsoft has tweaked the Ribbon’s looks numerous times over the years, but it still works the same way it always has: just click one of the Ribbon’s tabs to see related commands on the toolbar. For example, click Insert to find buttons for inserting tables, PivotTables, charts, and more. Through the years, Excel’s Ribbon has gotten a variety of cosmetic changes, but it still works largely the way it always has. Preston Gralla / Foundry Just as in previous versions of Excel, if you want the Ribbon commands to go away, press Ctrl-F1 or click the name of the tab you’re currently on. (The tabs above the Ribbon — File, Home, Insert, and so on — stay visible.) To make the commands reappear, press Ctrl-F1 again or click any tab name. You’ve got other options for displaying the Ribbon as well. To get to them, click the Ribbon display options icon (a down arrow) on the bottom of the Ribbon at the far right, just below the Share button. A drop-down menu appears with these four options: Full-screen mode: This makes Excel take up your entire screen and hides the Ribbon. To get out of full-screen mode, click the three-dot icon at the upper right of the screen. Show tabs only: This shows the tabs but hides the commands underneath them. It’s the same as pressing Ctrl-F1. To display the commands underneath the tabs when they’re hidden, press Ctrl-F1, click a tab, or click the Ribbon display options down arrow and select Always show Ribbon. Always show Ribbon: This displays the entire Ribbon, both the tabs and commands underneath them. Show/Hide Quick Access toolbar: This displays or hides the Quick Access toolbar, which gives you fast access to Excel commands you want to have available no matter which tab you’re on. When you enable the toolbar, it starts off empty. To populate it, click a small down arrow that appears at the right of the toolbar and from the drop-down menu that appears, choose which features to put on it. If you don’t see a command you want, click More Commands. Find the command you want on the left and click Add. You can have the toolbar appear either at the top of the screen, just to the right of the AutoSave button, or just underneath the Ribbon. To move it from one place to another, click a small down arrow that appears at the right of the toolbar and from the drop-down menu that appears, select either Show below the Ribbon or Show above the Ribbon.  Microsoft has for many years teased a simplified version of the Ribbon that hides most of the commands to reduce clutter. That simplified Ribbon is available in the Excel web app, but there’s currently no sign that it will appear in the Excel desktop app. There’s a useful feature in what Microsoft calls the backstage area that appears when you click the File tab on the Ribbon. If you click Open or Save a Copy from the menu on the left, you can see the cloud-based services you’ve connected to your Office account, such as SharePoint and OneDrive. Each location displays its associated email address underneath it. This is quite helpful if you use a cloud service with more than one account, such as if you have one OneDrive account for personal use and another one for business. You’ll be able to see at a glance which is which. Click the Add a service dropdown to add another cloud storage account. Preston Gralla / Foundry Search to get tasks done quickly Excel has never been the most user-friendly of applications, and it has so many powerful features it can be tough to keep track of them all. That’s where the handy Search feature comes in. To use it, click in the Search box — it’s above the Ribbon in the green title area. (Keyboard fans can instead press Alt-Q.) Then type in a task you want to do. If you want to summarize your spreadsheet data using a PivotTable, for example, type in something like summarize with pivot table. You’ll get a menu showing potential matches for the task. In this instance, the top result is a direct link to the form for summarizing with a PivotTable — select it and you’ll start your task right away, without having to go to the Ribbon’s Insert tab first. The search box makes it easy to perform just about any task in Excel. Preston Gralla / Foundry If you’d like more information about your task, the final items that appear in the menu let you select from related Help topics. Even if you consider yourself a spreadsheet jockey, it’s worth your while to try out the enhanced search function. It’s a big time-saver, and far more efficient than hunting through the Ribbon to find a command. Also useful is that it remembers the features you’ve previously clicked on in the box, so when you click in it, you first see a list of previous tasks you’ve searched for. That makes sure that tasks that you frequently perform are always within easy reach. And it puts tasks you rarely do within easy reach as well. Users of enterprise and education editions of Microsoft 365 can also use the Search box to find people in their organization, SharePoint resources, and other personalized results from within Excel. (See the Microsoft Search support page for more details about all it can do.) Explore Excel’s advanced chart types Charts are great for visualizing and presenting spreadsheet data, and for gaining insights from it. To that end, Microsoft has introduced a number of advanced chart types over the past several years, including most notably a histogram (frequently used in statistics), a “waterfall” that’s effective at showing running financial totals, and a hierarchical treemap that helps you find patterns in data. Note that the new charts are available only if you’re working in an .xlsx document. If you use the older .xls format, you won’t find them. To see all the charts, put your cursor in a cell or group of cells that contains data, select Insert > Recommended Charts and click the All Charts tab. You’ll find the newer charts, mixed in with the older ones. Select any to create the chart. (For help using charts, see our guide to charts and sparklines in Excel.) Excel includes several advanced chart types, including waterfall. Preston Gralla / Foundry These are the new chart types: Treemap. This chart type creates a hierarchical view of your data, with top-level categories (or tree branches) shown as rectangles, and with subcategories (or sub-branches) shown as smaller rectangles grouped inside the larger ones. Thus, you can easily compare the sizes of top-level categories and subcategories in a single view. For instance, a bookstore can see at a glance that it brings in more revenue from 1st Readers, a subcategory of Children’s Books, than for the entire Non-fiction top-level category. srcset="https://b2b-contenthub.com/wp-content/uploads/2025/05/excel2016_chart_treemap.jpg?quality=50&strip=all 830w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel2016_chart_treemap.jpg?resize=300%2C191&quality=50&strip=all 300w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel2016_chart_treemap.jpg?resize=768%2C489&quality=50&strip=all 768w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel2016_chart_treemap.jpg?resize=264%2C168&quality=50&strip=all 264w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel2016_chart_treemap.jpg?resize=132%2C84&quality=50&strip=all 132w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel2016_chart_treemap.jpg?resize=753%2C480&quality=50&strip=all 753w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel2016_chart_treemap.jpg?resize=565%2C360&quality=50&strip=all 565w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel2016_chart_treemap.jpg?resize=392%2C250&quality=50&strip=all 392w" width="830" height="529" sizes="(max-width: 830px) 100vw, 830px">A treemap chart lets you easily compare top-level categories and subcategories in a single view. Preston Gralla / Foundry Sunburst. This chart type also displays hierarchical data, but in a multi-level pie chart. Each level of the hierarchy is represented by a circle. The innermost circle contains the top-level categories, the next circle out shows subcategories, the circle after that subsubcategories and so on. Sunbursts are best for showing the relationships among categories and subcategories, while treemaps are better at showing the relative sizes of categories and subcategories. A sunburst chart shows hierarchical data such as book categories and subcategories as a multi-level pie chart. Preston Gralla / Foundry Waterfall. This chart type is well-suited for visualizing financial statements. It displays a running total of the positive and negative contributions toward a final net value. A waterfall chart shows a running total of positive and negative contributions, such as revenue and expenses, toward a final net value. Preston Gralla / Foundry Histogram. This kind of chart shows frequencies within a data set. It could, for example, show the number of books sold in specific price ranges in a bookstore. Histograms are good for showing frequencies, such as number of books sold at various price points. Preston Gralla / Foundry Pareto. This chart, also known as a sorted histogram, contains bars as well as a line graph. Values are represented in descending order by bars. The cumulative total percentage of each bar is represented by a rising line. In the bookstore example, each bar could show a reason for a book being returned (defective, priced incorrectly, and so on). The chart would show, at a glance, the primary reasons for returns, so a bookstore owner could focus on those issues. Note that the Pareto chart does not show up when you select Insert > Recommended Charts > All Charts. To use it, first select the data you want to chart, then select Insert > Insert Statistic Chart, and under Histogram, choose Pareto. In a Pareto chart, or sorted histogram, a rising line represents the cumulative total percentage of the items being measured. In this example, it’s easy to see that more than 80% of a bookstore’s returns are attributable to three problems. Preston Gralla / Foundry Box & Whisker. This chart, like a histogram, shows frequencies within a data set but provides for a deeper analysis than a histogram. For example, in a bookstore it could show the distribution of prices of different genres of books. In the example shown here, each “box” represents the first to third quartile of prices for books in that genre, while the “whiskers” (the lines extending up and down from the box) show the upper and lower range of prices. Outliers that are priced outside the whiskers are shown as dots, the median price for each genre is shown with a horizontal line across the box, and the mean price is shown with an x. Box & Whisker charts can show details about data ranges such as the first to third quartile in the “boxes,” median and mean inside the boxes, upper and lower range with the “whiskers,” and outliers with dots.Preston Gralla / Foundry Funnel. This chart type is useful when you want to display values at multiple stages in a process. A funnel chart can show the number of sales prospects at every stage of a sales process, for example, with prospects at the top for the first stage, qualified prospects underneath it for the second stage, and so on, until you get to the final stage, closed sales. Generally, the values in funnel charts decrease with each stage, so the bars in the chart look like a funnel. Funnel charts let you display values at multiple stages in a process. Preston Gralla / Foundry When creating the data for a funnel chart, use one column for the stages in the process you’re charting, and a second column for the values for each stage. Once you’ve done that, to create the chart, select the data, then select Insert > Recommended Charts > All Charts > Funnel. Map. Map charts do exactly what you think they should: They let you compare data across different geographical regions, such as countries, regions, states, counties, or postal codes. Excel will automatically recognize the regions and create a map that visualizes the data. You can compare data across different locations with a map chart. Preston Gralla / Foundry To create a map chart, select the data you want to chart, then select Insert > Maps, then select the map chart. Note that in some instances, Excel might have a problem creating the map — for example, if there are multiple locations with the same name as one that you’re mapping. If that occurs, you’ll have to add one or more columns with details about the locations. If, say, you’re charting towns in the United Kingdom, you would have to include columns for the county and country each town is located in. Collaborate in real time For those who frequently collaborate with others, a welcome feature in Excel for Microsoft 365 is real-time collaboration that lets people work on spreadsheets together from anywhere in the world with an internet connection. Microsoft calls this “co-authoring.” Note that in order to use co-authoring, the spreadsheet must be stored in OneDrive, OneDrive for Business, or SharePoint Online, and you must be logged into your Microsoft 365 account. Also, co-authoring works in Excel only if you have AutoSave turned on. To do it, choose the On option on the AutoSave slider at the top left of the screen. To share a spreadsheet so you can collaborate on it with others: first open it, then click the Share button on the upper-right of the Excel screen. The “Send link” window pops up. Here you can send an email with a link where others can access the spreadsheet. Use the “Send link” pane to share a document and the “Link settings” pane to fine-tune its access permissions. Preston Gralla / Foundry Enter the email address of the person with whom you want to share in the text box. Enter multiple addresses, separated by commas, if you want to share the workbook with multiple people. One feature I found particularly useful when adding email addresses: As you type, Excel looks through your corporate or personal address book and lists the names and addresses of contacts who match the text you’ve input. Click the address you want to add. This not only saves you a bit of time but helps make sure you don’t incorrectly type in addresses. Next, decide whether anyone with the link can access the file, or only those whose email addresses you enter. If you see the text “Anyone with the link can edit” near the top of the pane, you can change that by clicking it, then choosing Specific people on the screen that appears. Similarly, if “Specific people” appears above the email addresses, you can change that by clicking it, then choosing Anyone with the link can edit from the screen that appears. (If you use a business, enterprise, or education edition of Office, your IT department may have set up different sharing permissions on these two screens, such as an option to allow anyone within your organization to edit the document. You may also need to click a Link settings button — a gear icon — to access the “Link settings” pane.) On this second screen you can also set the document to read-only for everybody, or allow everybody to edit it. In the “Other settings” section, click the down arrow and choose either Can edit, which allows full editing, or Can view, which is read-only. If you want to give certain people editing privileges and others view-only privileges, you can send two separate invitations with different rights selected. On this screen you can also set an expiration date after which people won’t be able to access the file, and you can set a password so that only people who have the password can access it. When you’ve made your selections, click Apply. Back in the main “Send link” screen, you can send a message along with the link by typing it into the Message box. Then click Send. An email is sent to all the recipients with a link they can click to open the document. Your collaborators will get an email like this when you share a spreadsheet. Preston Gralla / Foundry (If you’d rather send recipients a copy of the file as an Excel file instead of a link, and thus not allow real-time collaboration, click Send a copy at the bottom of the “Send link” screen.) There’s another way to share a file stored in a personal OneDrive for collaboration: In the “Copy link” area at the bottom of the “Send link” pane, click Copy. When you do that, you can copy the link and send it to someone yourself via email. Note that you have the same options for setting access and editing permissions as you do if you have Excel send the link directly for you. Just click Anyone with the link can edit or Specific people below “Copy link,” and follow the instructions above. To begin collaborating: When your recipients receive the email and click to open the spreadsheet, they’ll open it in the web version of Excel in a browser, not in the desktop version of Excel. If you’ve granted them edit permissions, they can begin editing immediately in the browser or else click Editing > Open in Desktop App on the upper right of the screen to work in the Excel desktop client. Excel for the web is less powerful and polished than the desktop client, but it works well enough for real-time collaboration. As soon as any collaborators open the file, you’ll see a colored cursor that indicates their presence in the file. Each person collaborating gets a different color. Hover your cursor over a colored cell that indicates someone’s presence, and you’ll see their name. Once they begin editing the workbook, such as entering data or a formula into a cell, creating a chart, and so on, you see the changes they make in real time. Your cursor also shows up on their screen as a color, and they see the changes you make. You can easily see where collaborators are working in a shared worksheet. Preston Gralla / Foundry Collaboration includes the ability to make comments in a file, inside individual cells, without actually changing the contents of the cell. To do it, right-click a cell, select New Comment and type in your comment. Everyone collaborating can see that a cell has a comment in it — it’s indicated by a small colored notch appearing in the upper right of the cell. The color matches the person’s collaboration color. To see someone’s comment in a cell, hover your cursor over the cell or put your cursor in the cell and you’ll see the comment, the name of the person who made the comment, and a Reply box you can use to send a reply. You can also click the Comments button on the upper right of the screen to open the Comments pane, which lists every comment by every person. Click any comment to jump to the cell it’s in. You can also reply when you click a comment in the pane. You can make see comments that other people make, and make comments yourself. Preston Gralla / Foundry Take advantage of linked data Excel for Microsoft 365 has a feature that Microsoft calls “linked data types.” Essentially, they’re cells that are connected to an online source (Bing) that automatically updates their information — for example, a company’s current stock price. As I write this, there are nearly approximately 100 linked data types, including not just obvious data types such as stocks, geography, and currencies, but many others, including chemistry, cities, anatomy, food, yoga, and more. To use them, type the items you want to track into cells in a single column. For stocks, for example, you can type in a series of stock ticker symbols, company names, fund names, etc. After that, select the cells, then on the Ribbon’s Data tab, select Stocks in the Data Types section in the middle. (If you had typed in geographic names such as countries, states, or cities, you would instead select Geography.) Excel automatically converts the text in each cell into the matching data source — in our example, into the company name and stock ticker. Excel also adds a small icon to the left edge of each cell identifying it as a linked cell. Click any icon and a data card will pop up showing all sorts of information about the kind of information you’ve typed in.  For instance, a stock data card shows stock-related information such as current price, today’s high and low, and 52-week high and low, as well as general company information including industry and number of employees. A location card shows the location’s population, capital, GDP, and so on. You can build out a table using data from the data card. To do so, select the cells again, and an Insert Data button appears. Click the button, then select the information you want to appear, such as Price for the current stock price, or Population for the population of a geographic region. srcset="https://b2b-contenthub.com/wp-content/uploads/2025/05/excel-microsoft365-15-linked-data-2023.jpg?quality=50&strip=all 620w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel-microsoft365-15-linked-data-2023.jpg?resize=300%2C293&quality=50&strip=all 300w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel-microsoft365-15-linked-data-2023.jpg?resize=172%2C168&quality=50&strip=all 172w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel-microsoft365-15-linked-data-2023.jpg?resize=86%2C84&quality=50&strip=all 86w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel-microsoft365-15-linked-data-2023.jpg?resize=491%2C480&quality=50&strip=all 491w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel-microsoft365-15-linked-data-2023.jpg?resize=368%2C360&quality=50&strip=all 368w, https://b2b-contenthub.com/wp-content/uploads/2025/05/excel-microsoft365-15-linked-data-2023.jpg?resize=256%2C250&quality=50&strip=all 256w" width="620" height="606" sizes="(max-width: 620px) 100vw, 620px">Linked data types let you insert information, such as a company’s high and low stock prices, that is continually updated. Preston Gralla / Foundry Excel will automatically add a column to the right populated with the latest information for each item you’re tracking, and will keep it updated. You can click the Insert Data button multiple times to keep adding columns to the right for different types of data from the item’s data card.  It’s helpful to add column headers so you know what each column is showing. Make your own custom views of a worksheet Sheet Views let you make a copy of a sheet and then apply filtered or sorted views of the data to the new sheet. It’s useful when you’re working with other people on a spreadsheet, and someone wants to create a customized view without altering the original sheet. You can all create multiple custom-filtered/sorted views for a sheet. Once you’ve saved a sheet view, anyone with access to the spreadsheet can see it. Note: To use this feature, your spreadsheet must be stored in OneDrive. Sheet views work best when your data is in table format. Select the data, then go to the Ribbon toolbar and click the Insert tab. Near the left end of the Insert toolbar, click the Table button and then OK. To create a new sheet view, click the Ribbon’s View tab, then click the New button in the Sheet View area at the far left. The row numbers and column letters at the left and top of your spreadsheet turn black to let you know you’re in a new sheet view. In the Sheet View area of the Ribbon, it says Temporary View, the default name given to a new sheet view before you’ve saved it. Here’s a sheet view with data sorted from highest to lowest costs. Preston Gralla / Foundry Now apply whatever sorting and filtering you like to the data. (If you need help, see the “How to sort and filter data” section of our Excel tables guide.) To save this view, click the Keep button in the Sheet View area of the Ribbon. When you do that, it is saved as “View1” by default. You can click View1 and type in a more meaningful name for the view. When you click Exit on this toolbar, you return to your spreadsheet, and the row numbers and columns on the left and top of the spreadsheet are no longer black. To switch from one sheet view to another, click the View tab. At the left of the Ribbon toolbar, click the down arrow next to the name of the current view (it will say Default if you’re viewing the spreadsheet without a sheet view applied) to open a dropdown list of the sheet views created for the spreadsheet. Click the name of a sheet view to switch to it. Whenever you’re looking at a sheet view, the row numbers and column letters framing your spreadsheet remain black to indicate that you’re in a sheet view, not the original spreadsheet. Create dynamic arrays and charts Dynamic arrays let you write formulas that return multiple values based on your data. When data on the spreadsheet is updated, the dynamic arrays automatically update and resize themselves. To create a dynamic array, first create a table as outlined in the previous tip. Make sure to include a column that lists categories. Also put in at least one column to its right that lists corresponding values. Put a header at the top of each column. So, for example, if you’re creating a spreadsheet for a business trip budget, Column A might list expenses, such as plane tickets, meals, hotel, etc., and Column B could list each item’s cost on the same row. Once you’ve set up the table, use a dynamic array function on it, such as FILTER, SORT, or UNIQUE to create a dynamic array next to the table. Here’s an example of a formula for using the FILTER function: =FILTER(A2:B9, B2:B9 < 2000) This tells Excel to show only the items that cost less than $2,000 in the array. The FILTER function created a data array showing only the items with costs below $2,000. Preston Gralla / Foundry Now, whenever the data in your source table changes, the dynamic array updates and resizes itself to accommodate the changes. That means the dynamic array is always up to date. So in our example, if you add new items with values under $2,000 to the table, the dynamic array will enlarge itself and include those new items. In the same way, you can use the SORT function to sort data and the UNIQUE function to remove duplicate data. (Read about more ways to use the FILTER, SORT, and UNIQUE functions from Microsoft support.) You create a dynamic chart from the dynamic array in the same way you do any other Excel chart. Select the cells from the dynamic array that you want to chart, then select the Insert tab and select the type of chart you want to add. When the source data changes in a way that affects the dynamic array that the chart is based on, both the dynamic array and the chart will be updated. Use AutoSave to provide a safety net as you work If you’re worried that you’ll lose your work on a worksheet because you don’t constantly save it, you’ll welcome the AutoSave feature. It automatically saves your files for you, so you won’t have to worry about system crashes, power outages, Excel crashes and similar problems. It only works only on documents stored in OneDrive, OneDrive for Business, or SharePoint Online. It won’t work with files saved in the older .xls format or files you save to your hard drive. AutoSave is a vast improvement over the previous AutoRecover feature built into Excel. AutoRecover doesn’t save your files in real time; instead, every several minutes it saves an AutoRecover file that you can try to recover after a crash. It doesn’t always work, though — for example, if you don’t properly open Excel after the crash, or if the crash doesn’t meet Microsoft’s definition of a crash. In addition, Microsoft notes, “AutoRecover is only effective for unplanned disruptions, such as a power outage or a crash. AutoRecover files are not designed to be saved when a logoff is scheduled or an orderly shutdown occurs.” And the files aren’t saved in real time, so you’ll likely lose several minutes of work even if all goes as planned. AutoSave is turned on by default in Excel for Microsoft 365 .xlsx workbooks stored in OneDrive, OneDrive for Business, or SharePoint Online. To turn it off (or back on again) for a workbook, use the AutoSave slider on the top left of the screen. If you want AutoSave to be off for all files by default, select File > Options > Save and uncheck the box marked AutoSave files stored in the Cloud by default on Excel. Using AutoSave may require some rethinking of your workflow. Many people are used to creating new worksheets based on existing ones by opening the existing file, making changes to it, and then using Save As to save the new version under a different name, leaving the original file intact. Be warned that doing this with AutoSave enabled will save your changes in the original file. Instead, Microsoft suggests opening the original file and immediately selecting File > Save a Copy (which replaces Save As when AutoSave is enabled) to create a new version. If AutoSave does save unwanted changes to a file, you can always use the Version History feature described below to roll back to an earlier version. Review or restore earlier versions of a spreadsheet There’s an extremely useful feature hiding in the title bar in Excel for Microsoft 365: You can use Version History to go back to previous versions of a file, review them, compare them side-by-side with your existing version, and copy and paste from an older file to your existing one. You can also restore an entire old version. To do it, click the file name at the top of the screen in an open file. A drop-down menu appears. Click Version History, and the Version History pane appears on the right side of the screen with a list of the previous versions of the file, including the time and date they were saved. (Alternatively, you can select the File tab on the Ribbon, click Info from the menu on the left, and then click the Version History button.) Use Version History to see all previous versions of a spreadsheet, copy and paste from an older file to your existing one, or restore an entire old version. Preston Gralla / Foundry In the Version History pane, click Open version under any older version, and that version appears as a read-only version in a new window. Scroll through the version and copy any content you want, then paste it into the latest version of the file. To restore the old version, overwriting the current one, click the Restore button. Try out Microsoft 365 Copilot in Excel — but don’t expect too much For an additional subscription fee, business users of Excel can use Microsoft’s genAI add-in, Microsoft 365 Copilot. You can have Copilot suggest and create charts, create formulas, mine spreadsheets for data insights you might have missed, and more. If you have a Microsoft 365 Personal or Family subscription, many of those features are now bundled with your core subscription. To start using Copilot in Excel, open a spreadsheet and click the Copilot button at the right of the Ribbon’s Home tab. The Copilot panel will appear on the right, offering suggestions for actions it can perform, such as summarizing your data with a chart, adding formulas to the spreadsheet, or applying conditional formatting to the sheet. You can also chat with Copilot in the panel, asking questions about your data or how to perform an action yourself. Note that these suggestions are generic and won’t always make sense. For example, when you start with a blank worksheet and click the Copilot button, its suggestions include summarizing data using pivot tables or charts, even though there’s no data to chart or put into a table. Microsoft 365 Copilot can help you in multiple ways in Excel, including creating formulas and charts, mining spreadsheets for insights, and more. Preston Gralla / Foundry In my testing, I found that Copilot wasn’t particularly helpful. For example, when I asked it to summarize data using a PivotTable or chart, several times it responded, “Something went wrong. Please try again in a moment.” Then it said that I first needed to reformat parts of my spreadsheet by using the Transform() function, and gave confusing advice on how I could do it — it wouldn’t do the task itself. (Eventually, I gave up.) When I asked it to suggest conditional formatting for my spreadsheet, which would highlight important data, it told me which data I should highlight but didn’t explain why the data was important. It also didn’t do the highlighting for me or tell me how to do it. I gave it one more try and asked it to perform an advanced analysis, which it would use Python to do. It certainly did something, although it was unclear what it was. It overwrote my original spreadsheet and added a section that claimed to show annual growth rates for revenue streams. But the data seemed to be incorrect. Perhaps advanced spreadsheet jockeys might be able to make sense of what Copilot is up to whenever they ask it for help. But mere mortal businesspeople may find it of no help at all. In my testing, I found Copilot not at all helpful, although spreadsheet jockeys may be able to make some sense of what it does. Preston Gralla / Foundry What’s more, Microsoft’s focus on Copilot in M365 has reduced the usefulness of Excel in some ways. For example, there used to be a handy feature called Smart Lookup that let you conduct targeted web searches from inside Excel. But at the beginning of 2025, Microsoft removed Smart Lookup from Excel, saying that the feature has been deprecated. Now the only way to search the web from inside Excel is via Copilot, which lacks some features of Smart Lookup — notably the ability to highlight words or phrases in a document and trigger an automatic web search. And M365 Copilot isn’t available to business customers unless they pay the additional subscription fee. Other features to check out Spreadsheet pros will be pleased with several other features and tools that have been added to Excel for Microsoft 365 over the past few years, from a quick data analysis tool to an advanced 3D mapping platform. Get an instant data analysis If you’re looking to analyze data in a spreadsheet, the Quick Analysis tool will help. Highlight the cells you want to analyze, then move your cursor to the lower right-hand corner of what you’ve highlighted. A small icon of a spreadsheet with a lightning bolt on it appears. Click it and you’ll get a variety of tools for performing instant analysis of your data. For example, you can use the tool to highlight the cells with a value greater than a specific number, get the numerical average for the selected cells, or create a chart on the fly. The Quick Analysis feature gives you a variety of tools for analyzing your data instantly. Preston Gralla / Foundry Translate text You can translate text from right within Excel. Highlight the cell whose text you want translated, then select Review > Translate. A Translator pane opens on the right. Excel will detect the words’ language at the top of the pane; you then select the language you want it translated to below. If Excel can’t detect the language of the text you chose or detects it incorrectly, you can override it. Easily find worksheets that have been shared with you It’s easy to forget which worksheets others have shared with you. In Excel for Microsoft 365 there’s an easy way to find them: Select File > Open > Shared with Me to see a list of them all. Note that this only works with OneDrive (both Personal and Business) and SharePoint Online. You’ll also need to be signed into you Microsoft or work or school account. Predict the future with Forecast Sheet Using the Forecast Sheet function, you can generate forecasts built on historical data. If, for example, you have a worksheet showing past book sales by date, Forecast Sheet can predict future sales based on past ones. To use the feature, you must be working in a worksheet that has time-based historical data. Put your cursor in one of the data cells, go to the Data tab on the Ribbon and select Forecast Sheet from the Forecast group toward the right. On the screen that appears, you can select various options such as whether to create a line or bar chart and what date the forecast should end. Click the Create button, and a new worksheet will appear showing your historical and predicted data and the forecast chart. (Your original worksheet will be unchanged.) The Forecast Sheet feature can predict future results based on historical data. Preston Gralla / Foundry Manage data for analysis with Get & Transform This feature is not entirely new to Excel. Formerly known as Power Query, it was made available as a free add-in to Excel 2013 and worked only with the PowerPivot features in Excel Professional Plus. Microsoft’s Power BI business intelligence software offers similar functionality. Now called Get & Transform, it’s a business intelligence tool that lets you pull in, combine, and shape data from wide variety of local and cloud sources. These include Excel workbooks, CSV files, SQL Server and other databases, Azure, Active Directory, and many others. You can also use data from public sources including Wikipedia. Get & Transform helps you pull in and shape data from a wide variety of sources. Preston Gralla / Foundry You’ll find the Get & Transform tools together in a group on the Data tab in the Ribbon. For more about using these tools, see Microsoft’s “Getting Started with Get & Transform in Excel.” Make a 3D map Before Excel 2016, Power Map was a popular free 3D geospatial visualization add-in for Excel. Now it’s free, built into Excel for Microsoft 365, and has been renamed 3D Maps. With it, you can plot geographic and other information on a 3D globe or map. You’ll need to first have data suitable for mapping, and then prepare that data for 3D Maps. Those steps are beyond the scope of this article, but here’s advice from Microsoft about how to get and prepare data for 3D Maps. Once you have properly prepared data, open the spreadsheet and select Insert > 3D Map > Open 3D Maps. Then click Enable from the box that appears. That turns on the 3D Maps feature. For details on how to work with your data and customize your map, head to the Microsoft tutorial “Get started with 3D Maps.” If you don’t have data for mapping but just want to see firsthand what a 3D map is like, you can download sample data created by Microsoft. The screenshot shown here is from Microsoft’s Dallas Utilities Seasonal Electricity Consumption Simulation demo. When you’ve downloaded the workbook, open it up, select Insert > 3D Map > Open 3D Maps and click the map to launch it. With 3D Maps you can plot geospatial data in an interactive 3D map. Preston Gralla / Foundry Automate tasks If you have OneDrive for Business and use Excel with a commercial or educational Microsoft 365 license, you can automate tasks with the Automate tab. You’ll be able to create and edit scripts with the Code Editor, run automated tasks with a button click, and share the script with co-workers. See Microsoft’s “Office Scripts in Excel” documentation for details. Insert data from a picture into Excel There are times you may find data inside an image file that you’d like to get into Excel. Typically, you’ll have to input the data from it manually. There’s now a way to have Excel convert the information on the image into data for a worksheet. In the Get & Transform Data group on the Data tab, click the From Picture dropdown and select Picture From File to choose the image you want to grab data from, or Picture from Clipboard to take a screenshot of an image on your PC and then import the data. For more details, see Microsoft’s “Insert data from picture” support page.   Use keyboard shortcuts Here’s one last productivity tip: If you memorize a handful of keyboard shortcuts for common tasks in Excel, you can save a great deal of time over hunting for the right command to click on. See “Handy Excel keyboard shortcuts for Windows and Mac” for our favorites. This article was originally published in August 2019 and most recently updated in May 2025. More Excel tutorials: Excel basics: Get started with tables Excel basics: Get started with charts and sparklines How to use PivotTables and PivotCharts in Excel How to use slicers in Excel How to use Excel formulas and functions How (and why) to use conditional formatting in Excel How to use Excel macros to save time and automate your work

Slather on that SPF, slip into that bathing suit, and pack your beverage of choice in that insulated Yeti of yours. We're going to the beach! While I'd argue that the beach is best when you leave your tech behind, or, as Lorde did, throw your cellular device in the water, there are a few gadgets you can pack along to elevate the relaxing experience. As you head to the beach for memorial Day to soak up some sun and relax, I encourage you to bring along a few of my favorite gadgets. From a portable, waterproof Bluetooth speaker for listening to your beachy playlist to a handy electric fan for when it gets too hot, I rounded up a few gadgets I'm bringing to the beach this summer -- and I highly recommend that you follow suit. Keep reading for more.  Sony Ult Field 1 portable speaker Nina Raemont/ZDNET Let's talk tunes: This speaker from Sony is my favorite one to listen to at the beach, in the park, or at home in my bedroom. I've used the speaker to play music during dinner parties, and even amid a group of 15 friends all sat around the table, the sound was clear and strong. It gets plenty loud and offers crystal-clear sound. It's also waterproof, dustproof, and rustproof, so you can splash water on it or kick sand onto it without a problem. The speaker comes with a handy little carrying strap for maximum portability and a 12-hour battery life that should last you an entire day of tomfoolery by the water. What I also love about this speaker is how much quality Sony packs into a fairly affordable Bluetooth speaker with great sound. You're getting a high-quality speaker that punches well above its price point. For summer beach days, I can't recommend the Ult Field 1 enough and am looking forward to blasting my favorite songs on it as I hang in the sand this season. Right now, select colorways of the speaker are discounted by $40, bringing the price of this speaker down to $88.  Show more View now at Amazon Handheld mini fan and portable charger Nina Raemont/ZDNET If the ocean breeze isn't cutting it and you're needing some additional cool air on your face, this handheld mini fan is about to be your best friend. My friend who brought this to the beach last summer to cool herself off told me that she still carries the fan everywhere, thanks to its compact size and easy portability. Even better: Not only is this a fan, but it's also a flashlight and a power bank, so you can plug a charger into it to give your phone some extra juice at the end of the day. The mini fan has over 50,000 ratings on Amazon, and customers compliment its sweet design and functionality. It's great for any breeze-less and sweltering summer day, whether on the beach, at a packed outdoor concert venue, queueing up in lines at an amusement park, or braving the sweaty subway.  Show more View now at Amazon Kindle Paperwhite Nina Raemont/ZDNET If you don't have any more space for a book in that beach bag of yours, might I suggest a Kindle instead? I know that an e-reader is not the same as a paperback, but there are some instances when an e-reader, like the Kindle Paperwhite, simply works better than a physical book. The beach is one of those instances for a few reasons: the first is that the Kindle is waterproof and will survive splashes and sand, unlike a soggy paperback book. The second is its slim build and portability -- you don't have to choose between titles with a Kindle; bring them all to the beach instead and have space in your beach bag to spare. The Paperwhite offers an adjustable warm light and a glare-free display, so you can read e-books in direct sunlight without a problem. If you've got a laundry list of books to read this summer and are planning on knocking a few of those titles off while lounging on the beach, this Kindle could keep your reading goals on track.  Show more View now at Amazon Hanging on the beach all day is bound to drain your various devices' batteries. Bring a portable charger along, like this Anker PowerCore, to boost them back up. This PowerCore charger is lightweight, small enough to throw in a bag, and boasts a USB-A and USB-C port. ZDNET's Adrian Kingsley Hughes says he uses these constantly to power up his action cameras and devices on the go. While the chargers aren't disposable, Kingsley-Hughes says he likes that its affordable price makes it easy to replace if it gets lost. "If they get damaged, lost (or, as one did, fall off a cliff), I'm not out that much money," he writes.  Show more View now at Amazon Why should you trust me? While thinking about the best gadgets to bring to the beach, I kept in mind two essential things: usefulness and portability. I tried to choose tech gadgets that a regular person would actually use and reap the benefits of while they're passing the day by the water. If you're anything like me, and your closest beach is a 50-minute subway ride away, you know that that beach bag you're lugging around gets heavy, quickly. I tried to choose products that lighten the heavy load of your beach bag or relieve you from the hot weather. I test and report on tech products for a living, so I chose products that my colleagues and I can vouch for, many of which we have reviewed ourselves.  Show more Why does my phone's battery drain quickly in the sun? Hot temperatures can drain a phone's battery, fast. That's because heat speeds up chemical reactions in the battery. To keep my phone battery strong while I'm on the beach, I like to wrap it in a towel and hide it from direct sunlight. I also will only try to use it when necessary.  Show more What other beach essentials should I bring? There are the classic beach bag essentials, like a beach towel (I like to bring one towel for sitting on and one for drying myself off), sunscreen, sunglasses, a water bottle, and a cooler with drinks and snacks in it. I also love bringing earbuds with me, so as to not bother my friends while I listen to my favorite tunes on the water.  Show more Other beach-friendly tech 

If you have experience with object-oriented programming languages, then you’ve likely heard of the SOLID principles, MVP, singleton, factory, and observer patterns. Our new e-book highlights best practices for using these principles and patterns to create scalable game code architecture in your Unity project.For every software design issue you encounter, a thousand developers have been there before. Though you can’t always ask them directly for advice, you can learn from their decisions through design patterns.By implementing common, game programming design patterns in your Unity project, you can efficiently build and maintain a clean, organized, and readable codebase, which in turn, creates a solid foundation for scaling your game, development team, and business.In our community, we often hear that it can be intimidating to learn how to incorporate design patterns and principles, such as SOLID and KISS, into daily development. That’s why our free e-book, Level up your code with game programming patterns, explains well-known design patterns and shares practical examples for using them in your Unity project.Written by internal and external Unity experts, the e-book is a resource that can help expand your developer’s toolbox and accelerate your project’s success. Read on for a preview of what the guide entails.Design patterns are general solutions to common problems found in software engineering. These aren’t finished solutions you can copy and paste into your code, but extra tools that can help you build larger, scalable applications when used correctly.By integrating patterns consistently into your project, you can improve code readability and make your codebase cleaner. Design patterns not only reduce refactoring and the time spent testing, they speed up onboarding and development processes.However, every design pattern comes with tradeoffs, whether that means additional structures to maintain or more setup at the beginning. You’ll need to do a cost-benefit assessment to determine if the advantage justifies the extra work required. Of course, this assessment will vary based on your project.KISS stands for “keep it simple, stupid.” The aim of this principle is to avoid unnecessary complexity in a system, as simplicity helps drive greater levels of user acceptance and interaction.Note that “simple” does not equate to “easy.” Making something simple means making it focused. While you can create the same functionality without the patterns (and often more quickly), something fast and easy doesn’t necessarily result in something simple.If you’re unsure whether a pattern applies to your particular issue, you might hold off until it feels like a more natural fit. Don’t use a pattern because it’s new or novel to you. Use it when you need it.It’s in this spirit that the e-book was created. Keep the guide handy as a source of inspiration for new ways of organizing your code – not as a strict set of rules for you to follow.Now, let’s turn to some of the key software design principles.SOLID is a mnemonic acronym for five core fundamentals of software design. You can think of them as five basic rules to keep in mind while coding, to ensure that object-oriented designs remain flexible and maintainable.The SOLID principles were first introduced by Robert C. Martin in the paper, Design Principles and Design Patterns. First published in 2000, the principles described are still applicable today, and to C# scripting in Unity:Single responsibility states that each module, class, or function is responsible for one thing and encapsulates only that part of the logic.Open-closed states that classes must be open for extension but closed for modification; that means structuring your classes to create new behavior without modifying the original code.Liskov substitution states that derived classes must be substitutable for their base class when using inheritance.Interface segregation states that no client should be forced to depend on methods it does not use. Clients should only implement what they need.Dependency inversion states that high-level modules should not import anything directly from low-level modules. Both should depend on abstractions.In the e-book, we provide illustrated examples of each principle with clear explanations for using them in Unity. In some cases, adhering to SOLID can result in additional work up front. You may need to refactor some of your functionality into abstractions or interfaces, but there is often a payoff in long-term savings.The principles have dominated software design for nearly two decades at the enterprise level because they’re so well-suited to large applications that scale. If you’re unsure about how to use them, refer back to the KISS principle. Keep it simple, and don’t try to force the principles into your scripts just for the sake of doing so. Let them organically work themselves into place through necessity.If you’re interested in learning more, check out the SOLID presentation from Unite Austin 2017 by Dan Sagmiller of Productive Edge.What’s the difference between a design principle and a design pattern? One way to answer that question is to consider SOLID as a framework for, or a foundational approach to, writing object-oriented code. While design patterns are solutions or tools you can implement to avoid everyday software problems, remember that they’re not off-the-shelf recipes – or for that matter, algorithms with specific steps for achieving specific results.A design pattern can be thought of as a blueprint. It’s a general plan that leaves the actual construction up to you. For instance, two programs can follow the same pattern but involve very different code.When developers encounter the same problem in the wild, many of them will inevitably come up with similar solutions. Once a solution is repeated enough times, someone might “discover” a pattern and formally give it a name.Many of today’s software design patterns stem from the seminal work, Design Patterns: Elements of Reusable Object-Oriented Software by Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides. This book unpacks 23 such patterns identified in a variety of day-to-day applications.The original authors are often referred to as the “Gang of Four” (GoF),and you’ll also hear the original patterns dubbed the GoF patterns. While the examples cited are mostly in C++ (and Smalltalk), you can apply their ideas to any object-oriented language, such as C#.Since the Gang of Four originally published Design Patterns in 1994, developers have since established dozens more object-oriented patterns in a variety of fields, including game development.While you can work as a game programmer without studying design patterns, learning them will help you become a better developer. After all, design patterns are labeled as such because they’re common solutions to well-known problems.Software engineers rediscover them all the time in the normal course of development. You may have already implemented some of these patterns unwittingly.Train yourself to look for them. Doing this can help you:Learn object-oriented programming: Design patterns aren’t secrets buried in an esoteric StackOverflow post. They are common ways to overcome everyday hurdles in development. They can inform you of how many other developers have approached the same issue – remember, even if you’re not using patterns, someone else is.Talk to other developers: Patterns can serve as a shorthand when trying to communicate as a team. Mention the “command pattern” or “object pool” and experienced Unity developers will know what you’re trying to implement.Explore new frameworks:When you import a built-in package or something from the Asset Store, inevitably you’ll stumble onto one or more patterns discussed here. Recognizing design patterns will help you understand how a new framework operates, as well as the thought process involved in its creation.As indicated earlier, not all design patterns apply to every game application. Don’t go looking for them with Maslow’s hammer; otherwise, you might only find nails.Like any other tool, a design pattern’s usefulness depends on context. Each one provides a benefit in certain situations and also comes with its share of drawbacks. Every decision in software development comes with compromises.Are you generating a lot of GameObjects on the fly? Does it impact your performance? Can restructuring your code fix that? Be aware of these design patterns, and when the time is right, pull them from your gamedev bag of tricks to solve the problem at hand.In addition to the Gang of Four’s Design Patterns, Game Programming Patterns by Robert Nystrom is another standout resource, currently available for free as a web-based edition. The author details a variety of software patterns in a no-nonsense manner.In our new e-book, you can dive into the sections that explain common design patterns, such as factory, object pool, singleton, command, state, and observer patterns, plus the Model View Presenter (MVP), among others. Each section explains the pattern along with its pros and cons, and provides an example of how to implement it in Unity so you can optimize its usage in your project.Unity already implements several established gamedev patterns, saving you the trouble of writing them yourself. These include:Game loop: At the core of all games is an infinite loop that must function independently of clock speed, since the hardware that powers a game application can vary greatly. To account for computers of different speeds, game developers often need to use a fixed timestep (with a set frames-per-second) and a variable timestep where the engine measures how much time has passed since the previous frame. Unity takes care of this, so you don’t have to implement it yourself. You only need to manage gameplay using MonoBehaviour methods like Update, LateUpdate, and FixedUpdate. Update: In your game application, you’ll often update each object’s behavior one frame at a time. While you can manually recreate this in Unity, the MonoBehaviour class does this automatically. Use the appropriate Update, LateUpdate, or FixedUpdate methods to modify your GameObjects and components to one tick of the game clock.Prototype: Often you need to copy objects without affecting the original. This creational pattern solves the problem of duplicating and cloning an object to make other objects similar to itself. This way you avoid defining a separate class to spawn every type of object in your game. Unity’s Prefab system implements a form of prototyping for GameObjects. This allows you to duplicate a template object complete with its components. Override specific properties to create Prefab Variants or nest Prefabs inside other Prefabs to create hierarchies. Use a special Prefab editing mode to edit Prefabs in isolation or in context. Component:Most people working in Unity know this pattern. Instead of creating large classes with multiple responsibilities, build smaller components that each do one thing. If you use composition to pick and choose components, you can combine them for complex behavior. Add Rigidbody and Collider components for physics, or a MeshFilter and MeshRenderer for 3D geometry. Each GameObject is only as rich and unique as its collection of components.Both the e-book and a sample project on the use of design patterns are available now to download for free. Review the examples and decide which design pattern best suits your project. As you gain experience with them, you’ll recognize how and when they can enhance your development process. As always, we encourage you to visit the forum thread and let us know what you think of the e-book and sample.