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.

This article is a sponsored by TetraLogical Neurodivergent needs are often considered as an edge case that doesn’t fit into common user journeys or flows. Neurodiversity tends to get overlooked in the design process. Or it is tackled late in the process, and only if there is enough time. But people aren’t edge cases. Every person is just a different person, performing tasks and navigating the web in a different way. So how can we design better, more inclusive experiences that cater to different needs and, ultimately, benefit everyone? Let’s take a closer look. Neurodiversity Or Neurodivergent? There is quite a bit of confusion about both terms on the web. Different people think and experience the world differently, and neurodiversity sees differences as natural variations, not deficits. It distinguishes between neurotypical and neurodivergent people. Neurotypical people see the world in a “typical” and widely perceived as expected way. Neurodivergent people experience the world differently, for example, people with ADHD, dyslexia, dyscalculia, synesthesia, and hyperlexia. According to various sources, around 15–40% of the population has neurodivergent traits. These traits can be innate (e.g., autism) or acquired (e.g., trauma). But they are always on a spectrum, and vary a lot. A person with autism is not neurodiverse — they are neurodivergent. One of the main strengths of neurodivergent people is how imaginative and creative they are, coming up with out-of-the-box ideas quickly. With exceptional levels of attention, strong long-term memory, a unique perspective, unbeatable accuracy, and a strong sense of justice and fairness. Being different in a world that, to some degree, still doesn’t accept these differences is exhausting. So unsurprisingly, neurodivergent people often bring along determination, resilience, and high levels of empathy. Design With People, Not For Them As a designer, I often see myself as a path-maker. I’m designing reliable paths for people to navigate to their goals comfortably. Without being blocked. Or confused. Or locked out. That means respecting the simple fact that people’s needs, tasks, and user journeys are all different, and that they evolve over time. And: most importantly, it means considering them very early in the process. Better accessibility is better for everyone. Instead of making decisions that need to be reverted or refined to be compliant, we can bring a diverse group of people — with accessibility needs, with neurodiversity, frequent and infrequent users, experts, newcomers — in the process, and design with them, rather than for them. Neurodiversity & Inclusive Design Resources A wonderful resource that helps us design for cognitive accessibility is Stéphanie Walter’s Neurodiversity and UX toolkit. It includes practical guidelines, tools, and resources to better understand and design for dyslexia, dyscalculia, autism, and ADHD. Another fantastic resource is Will Soward’s Neurodiversity Design System. It combines neurodiversity and user experience design into a set of design standards and principles that you can use to design accessible learning interfaces. Last but not least, I’ve been putting together a few summaries about neurodiversity and inclusive design over the last few years, so you might find them helpful, too: ADHD Autism Children Colorblindness Deafness Dyscalculia Dyslexia Legibility Left-Handed Users Mental Health Motivation Older Adults Screen Readers Teenagers A huge thank-you to everyone who has been writing, speaking, and sharing articles, resources, and toolkits on designing for diversity. The topic is often forgotten and overlooked, but it has an incredible impact. 👏🏼👏🏽👏🏾

Devolver Digital is devoting its Summer Game Fest stream to a single title. That's quite the departure for the Austin-based publisher. So, the company must see something special in Ball x Pit: The Kenny Sun Story. Get ready to find out about it on June 6. Devolver isn't being shy about its enthusiasm for Ball x Pit. The publisher says it's a game the team "can't even put down — hundreds of hours later." Sounds promising! So, what do we know about the game and its titular character? Not much. There's the teaser image above, featuring battle skeletons and other fantasy characters. Also, Devolver called it "a tremendous little game." Expect to learn much more about Ball x Pit on June 6 at 8 PM ET. You can tune into Devolver Direct on YouTube and Twitch. (That's the same broadcast as the Summer Game Fest Live and Day of the Devs livestreams.)This article originally appeared on Engadget at https://www.engadget.com/gaming/how-to-watch-devolver-direct-at-summer-game-fest-2025-170014340.html?src=rss

LUBBOCK — Every winter, after the sea of cotton has been harvested in the South Plains and the ground looks barren, technicians with the High Plains Underground Water Conservation District check the water levels in nearly 75,000 wells across 16 counties. For years, their measurements have shown what farmers and water conservationists fear most—the Ogallala Aquifer, an underground water source that’s the lifeblood of the South Plains agriculture industry, is running dry. That’s because of a century-old law called the rule of capture. The rule is simple: If you own the land above an aquifer in Texas, the water underneath is yours. You can use as much as you want, as long as it’s not wasted or taken maliciously. The same applies to your neighbor. If they happen to use more water than you, then that’s just bad luck. To put it another way, landowners can mostly pump as much water as they choose without facing liability to surrounding landowners whose wells might be depleted as a result. Following the Dust Bowl—and to stave off catastrophe—state lawmakers created groundwater conservation districts in 1949 to protect what water is left. But their power to restrict landowners is limited. “The mission is to save as much water possible for as long as possible, with as little impact on private property rights as possible,” said Jason Coleman, manager for the High Plains Underground Water Conservation District. “How do you do that? It’s a difficult task.” A 1953 map of the wells in Lubbock County hangs in the office of the groundwater district. [Photo: Annie Rice for The Texas Tribune] Rapid population growth, climate change, and aging water infrastructure all threaten the state’s water supply. Texas does not have enough water to meet demand if the state is stricken with a historic drought, according to the Texas Water Development Board, the state agency that manages Texas’ water supply. Lawmakers want to invest in every corner to save the state’s water. This week, they reached a historic $20 billion deal on water projects. High Plains Underground Water District General Manager Jason Coleman stands in the district’s meeting room on May 21 in Lubbock. [Photo: Annie Rice for The Texas Tribune] But no one wants to touch the rule of capture. In a state known for rugged individualism, politically speaking, reforming the law is tantamount to stripping away freedoms. “There probably are opportunities to vest groundwater districts with additional authority,” said Amy Hardberger, director for the Texas Tech University Center for Water Law and Policy. “I don’t think the political climate is going to do that.” State Sen. Charles Perry, a Lubbock Republican, and Rep. Cody Harris, a Palestine Republican, led the effort on water in Austin this year. Neither responded to requests for comment. Carlos Rubinstein, a water expert with consulting firm RSAH2O and a former chairman of the water development board, said the rule has been relied upon so long that it would be near impossible to undo the law. “I think it’s better to spend time working within the rules,” Rubinstein said. “And respect the rule of capture, yet also recognize that, in and of itself, it causes problems.” Even though groundwater districts were created to regulate groundwater, the law effectively stops them from doing so, or they risk major lawsuits. The state water plan, which spells out how the state’s water is to be used, acknowledges the shortfall. Groundwater availability is expected to decline by 25% by 2070, mostly due to reduced supply in the Ogallala and Edwards-Trinity aquifers. Together, the aquifers stretch across West Texas and up through the Panhandle. By itself, the Ogallala has an estimated three trillion gallons of water. Though the overwhelming majority in Texas is used by farmers. It’s expected to face a 50% decline by 2070. Groundwater is 54% of the state’s total water supply and is the state’s most vulnerable natural resource. It’s created by rainfall and other precipitation, and seeps into the ground. Like surface water, groundwater is heavily affected by ongoing droughts and prolonged heat waves. However, the state has more say in regulating surface water than it does groundwater. Surface water laws have provisions that cut supply to newer users in a drought and prohibit transferring surface water outside of basins. Historically, groundwater has been used by agriculture in the High Plains. However, as surface water evaporates at a quicker clip, cities and businesses are increasingly interested in tapping the underground resource. As Texas’ population continues to grow and surface water declines, groundwater will be the prize in future fights for water. In many ways, the damage is done in the High Plains, a region that spans from the top of the Panhandle down past Lubbock. The Ogallala Aquifer runs beneath the region, and it’s faced depletion to the point of no return, according to experts. Simply put: The Ogallala is not refilling to keep up with demand. “It’s a creeping disaster,” said Robert Mace, executive director of the Meadows Center for Water and the Environment. “It isn’t like you wake up tomorrow and nobody can pump anymore. It’s just happening slowly, every year.” [Image: Yuriko Schumacher/The Texas Tribune] Groundwater districts and the law The High Plains Water District was the first groundwater district created in Texas. Over a protracted multi-year fight, the Legislature created these new local government bodies in 1949, with voter approval, enshrining the new stewards of groundwater into the state Constitution. If the lawmakers hoped to embolden local officials to manage the troves of water under the soil, they failed. There are areas with groundwater that don’t have conservation districts. Each groundwater districts has different powers. In practice, most water districts permit wells and make decisions on spacing and location to meet the needs of the property owner. The one thing all groundwater districts have in common: They stop short of telling landowners they can’t pump water. In the seven decades since groundwater districts were created, a series of lawsuits have effectively strangled groundwater districts. Even as water levels decline from use and drought, districts still get regular requests for new wells. They won’t say no out of fear of litigation. The field technician coverage area is seen in Nathaniel Bibbs’ office at the High Plains Underground Water District. Bibbs is a permit assistant for the district. [Photo: Annie Rice for The Texas Tribune] “You have a host of different decisions to make as it pertains to management of groundwater,” Coleman said. “That list has grown over the years.” The possibility of lawsuits makes groundwater districts hesitant to regulate usage or put limitations on new well permits. Groundwater districts have to defend themselves in lawsuits, and most lack the resources to do so. A well spacing guide is seen in Nathaniel Bibbs’ office. [Photo: Annie Rice for The Texas Tribune] “The law works against us in that way,” Hardberger, with Texas Tech University, said. “It means one large tool in our toolbox, regulation, is limited.” The most recent example is a lawsuit between the Braggs Farm and the Edwards Aquifer Authority. The farm requested permits for two pecan orchards in Medina County, outside San Antonio. The authority granted only one and limited how much water could be used based on state law. It wasn’t an arbitrary decision. The authority said it followed the statute set by the Legislature to determine the permit. “That’s all they were guaranteed,” said Gregory Ellis, the first general manager of the authority, referring to the water available to the farm. The Braggs family filed a takings lawsuit against the authority. This kind of claim can be filed when any level of government—including groundwater districts—takes private property for public use without paying for the owner’s losses. Braggs won. It is the only successful water-related takings claim in Texas, and it made groundwater laws murkier. It cost the authority $4.5 million. “I think it should have been paid by the state Legislature,” Ellis said. “They’re the ones who designed that permitting system. But that didn’t happen.” An appeals court upheld the ruling in 2013, and the Texas Supreme Court denied petitions to consider appeals. However, the state’s supreme court has previously suggested the Legislature could enhance the powers of the groundwater districts and regulate groundwater like surface water, just as many other states have done. While the laws are complicated, Ellis said the fundamental rule of capture has benefits. It has saved Texas’ legal system from a flurry of lawsuits between well owners. “If they had said ‘Yes, you can sue your neighbor for damaging your well,’ where does it stop?” Ellis asked. “Everybody sues everybody.” Coleman, the High Plains district’s manager, said some people want groundwater districts to have more power, while others think they have too much. Well owners want restrictions for others, but not on them, he said. “You’re charged as a district with trying to apply things uniformly and fairly,” Coleman said. Can’t reverse the past Two tractors were dropping seeds around Walt Hagood’s farm as he turned on his irrigation system for the first time this year. He didn’t plan on using much water. It’s too precious. The cotton farm stretches across 2,350 acres on the outskirts of Wolfforth, a town 12 miles southwest of Lubbock. Hagood irrigates about 80 acres of land, and prays that rain takes care of the rest. Walt Hagood drives across his farm on May 12, in Wolfforth. Hagood utilizes “dry farming,” a technique that relies on natural rainfall. [Photo: Annie Rice for The Texas Tribune] “We used to have a lot of irrigated land with adequate water to make a crop,” Hagood said. “We don’t have that anymore.” The High Plains is home to cotton and cattle, multi-billion-dollar agricultural industries. The success is in large part due to the Ogallala. Since its discovery, the aquifer has helped farms around the region spring up through irrigation, a way for farmers to water their crops instead of waiting for rain that may not come. But as water in the aquifer declines, there are growing concerns that there won’t be enough water to support agriculture in the future. At the peak of irrigation development, more than 8.5 million acres were irrigated in Texas. About 65% of that was in the High Plains. In the decades since the irrigation boom, High Plains farmers have resorted to methods that might save water and keep their livelihoods afloat. They’ve changed their irrigation systems so water is used more efficiently. They grow cover crops so their soil is more likely to soak up rainwater. Some use apps to see where water is needed so it’s not wasted. A furrow irrigation is seen at Walt Hagood’s cotton farm. [Photo: Annie Rice for The Texas Tribune] Farmers who have not changed their irrigation systems might not have a choice in the near future. It can take a week to pump an inch of water in some areas from the aquifer because of how little water is left. As conditions change underground, they are forced to drill deeper for water. That causes additional problems. Calcium can build up, and the water is of poorer quality. And when the water is used to spray crops through a pivot irrigation system, it’s more of a humidifier as water quickly evaporates in the heat. According to the groundwater district’s most recent management plan, 2 million acres in the district use groundwater for irrigation. About 95% of water from the Ogallala is used for irrigated agriculture. The plan states that the irrigated farms “afford economic stability to the area and support a number of other industries.” The state water plan shows groundwater supply is expected to decline, and drought won’t be the only factor causing a shortage. Demand for municipal use outweighs irrigation use, reflecting the state’s future growth. In Region O, which is the South Plains, water for irrigation declines by 2070 while demand for municipal use rises because of population growth in the region. Coleman, with the High Plains groundwater district, often thinks about how the aquifer will hold up with future growth. There are some factors at play with water planning that are nearly impossible to predict and account for, Coleman said. Declining surface water could make groundwater a source for municipalities that didn’t depend on it before. Regions known for having big, open patches of land, like the High Plains, could be attractive to incoming businesses. People could move to the country and want to drill a well, with no understanding of water availability. The state will continue to grow, Coleman said, and all the incoming businesses and industries will undoubtedly need water. “We could say ‘Well, it’s no one’s fault. We didn’t know that factory would need 20,000 acre-feet of water a year,” Coleman said. “It’s not happening right now, but what’s around the corner?” Coleman said this puts agriculture in a tenuous position. The region is full of small towns that depend on agriculture and have supporting businesses, like cotton gins, equipment and feed stores, and pesticide and fertilizer sprayers. This puts pressure on the High Plains water district, along with the two regional water planning groups in the region, to keep agriculture alive. “Districts are not trying to reduce pumping down to a sustainable level,” said Mace with the Meadows Foundation. “And I don’t fault them for that, because doing that is economic devastation in a region with farmers.” Hagood, the cotton farmer, doesn’t think reforming groundwater rights is the way to solve it. What’s done is done, he said. “Our U.S. Constitution protects our private property rights, and that’s what this is all about,” Hagood said. “Any time we have a regulation and people are given more authority, it doesn’t work out right for everybody.” Rapid population growth, climate change, and aging water infrastructure all threaten the state’s water supply. [Photo: Annie Rice for The Texas Tribune] What can be done The state water plan recommends irrigation conservation as a strategy. It’s also the least costly water management method. But that strategy is fraught. Farmers need to irrigate in times of drought, and telling them to stop can draw criticism. In Eastern New Mexico, the Ogallala Land and Water Conservancy, a nonprofit organization, has been retiring irrigation wells. Landowners keep their water rights, and the organization pays them to stop irrigating their farms. Landowners get paid every year as part of the voluntary agreement, and they can end it at any point. Ladona Clayton, executive director of the organization, said they have been criticized, with their efforts being called a “war” and “land grab.” They also get pushback on why the responsibility falls on farmers. She said it’s because of how much water is used for irrigation. They have to be aggressive in their approach, she said. The aquifer supplies water to the Cannon Air Force Base. “We don’t want them to stop agricultural production,” Clayton said. “But for me to say it will be the same level that irrigation can support would be untrue.” There is another possible lifeline that people in the High Plains are eyeing as a solution: the Dockum Aquifer. It’s a minor aquifer that underlies part of the Ogallala, so it would be accessible to farmers and ranchers in the region. The High Plains Water District also oversees this aquifer. If it seems too good to be true—that the most irrigated part of Texas would just so happen to have another abundant supply of water flowing underneath—it’s because there’s a catch. The Dockum is full of extremely salty brackish water. Some counties can use the water for irrigation and drinking water without treatment, but it’s unusable in others. According to the groundwater district, a test well in Lubbock County pulled up water that was as salty as seawater. Rubinstein, the former water development board chairman, said there are pockets of brackish groundwater in Texas that haven’t been tapped yet. It would be enough to meet the needs on the horizon, but it would also be very expensive to obtain and use. A landowner would have to go deeper to get it, then pump the water over a longer distance. “That costs money, and then you have to treat it on top of that,” Rubinstein said. “But, it is water.” Landowners have expressed interest in using desalination, a treatment method to lower dissolved salt levels. Desalination of produced and brackish water is one of the ideas that was being floated around at the Legislature this year, along with building a pipeline to move water across the state. Hagood, the farmer, is skeptical. He thinks whatever water they move could get used up before it makes it all the way to West Texas. There is always brackish groundwater. Another aquifer brings the chance of history repeating—if the Dockum aquifer is treated so its water is usable, will people drain it, too? Hagood said there would have to be limits. Disclosure: Edwards Aquifer Authority and Texas Tech University have been financial supporters of The Texas Tribune. Financial supporters play no role in the Tribune’s journalism. Find a complete list of them here. This article originally appeared in The Texas Tribune, a member-supported, nonpartisan newsroom informing and engaging Texans on state politics and policy. Learn more at texastribune.org.

Best of the rest Research roundup: 7 stories we almost missed Also: drumming chimpanzees, picking styles of two jazz greats, and an ancient underground city's soundscape Jennifer Ouellette – May 31, 2025 5:37 pm | 4 Time lapse photos show a new ping-pong-playing robot performing a top spin. Credit: David Nguyen, Kendrick Cancio and Sangbae Kim Time lapse photos show a new ping-pong-playing robot performing a top spin. Credit: David Nguyen, Kendrick Cancio and Sangbae Kim Story text Size Small Standard Large Width * Standard Wide Links Standard Orange * Subscribers only   Learn more It's a regrettable reality that there is never time to cover all the interesting scientific stories we come across each month. In the past, we've featured year-end roundups of cool science stories we (almost) missed. This year, we're experimenting with a monthly collection. May's list includes a nifty experiment to make a predicted effect of special relativity visible; a ping-pong playing robot that can return hits with 88 percent accuracy; and the discovery of the rare genetic mutation that makes orange cats orange, among other highlights. Special relativity made visible Credit: TU Wien Perhaps the most well-known feature of Albert Einstein's special theory of relativity is time dilation and length contraction. In 1959, two physicists predicted another feature of relativistic motion: an object moving near the speed of light should also appear to be rotated. It's not been possible to demonstrate this experimentally, however—until now. Physicists at the Vienna University of Technology figured out how to reproduce this rotational effect in the lab using laser pulses and precision cameras, according to a paper published in the journal Communications Physics. They found their inspiration in art, specifically an earlier collaboration with an artist named Enar de Dios Rodriguez, who collaborated with VUT and the University of Vienna on a project involving ultra-fast photography and slow light. For this latest research, they used objects shaped like a cube and a sphere and moved them around the lab while zapping them with ultrashort laser pulses, recording the flashes with a high-speed camera. Getting the timing just right effectively yields similar results to a light speed of 2 m/s. After photographing the objects many times using this method, the team then combined the still images into a single image. The results: the cube looked twisted and the sphere's North Pole was in a different location—a demonstration of the rotational effect predicted back in 1959. DOI: Communications Physics, 2025. 10.1038/s42005-025-02003-6  (About DOIs). Drumming chimpanzees A chimpanzee feeling the rhythm. Credit: Current Biology/Eleuteri et al., 2025. Chimpanzees are known to "drum" on the roots of trees as a means of communication, often combining that action with what are known as "pant-hoot" vocalizations (see above video). Scientists have found that the chimps' drumming exhibits key elements of musical rhythm much like humans, according to  a paper published in the journal Current Biology—specifically non-random timing and isochrony. And chimps from different geographical regions have different drumming rhythms. Back in 2022, the same team observed that individual chimps had unique styles of "buttress drumming," which served as a kind of communication, letting others in the same group know their identity, location, and activity. This time around they wanted to know if this was also true of chimps living in different groups and whether their drumming was rhythmic in nature. So they collected video footage of the drumming behavior among 11 chimpanzee communities across six populations in East Africa (Uganda) and West Africa (Ivory Coast), amounting to 371 drumming bouts. Their analysis of the drum patterns confirmed their hypothesis. The western chimps drummed in regularly spaced hits, used faster tempos, and started drumming earlier during their pant-hoot vocalizations. Eastern chimps would alternate between shorter and longer spaced hits. Since this kind of rhythmic percussion is one of the earliest evolved forms of human musical expression and is ubiquitous across cultures, findings such as this could shed light on how our love of rhythm evolved. DOI: Current Biology, 2025. 10.1016/j.cub.2025.04.019  (About DOIs). Distinctive styles of two jazz greats Jazz lovers likely need no introduction to Joe Pass and Wes Montgomery, 20th century guitarists who influenced generations of jazz musicians with their innovative techniques. Montgomery, for instance, didn't use a pick, preferring to pluck the strings with his thumb—a method he developed because he practiced at night after working all day as a machinist and didn't want to wake his children or neighbors. Pass developed his own range of picking techniques, including fingerpicking, hybrid picking, and "flat picking." Chirag Gokani and Preston Wilson, both with Applied Research Laboratories and the University of Texas, Austin, greatly admired both Pass and Montgomery and decided to explore the underlying the acoustics of their distinctive playing, modeling the interactions of the thumb, fingers, and pick with a guitar string. They described their research during a meeting of the Acoustical Society of America in New Orleans, LA. Among their findings: Montgomery achieved his warm tone by playing closer to the bridge and mostly plucking at the string. Pass's rich tone arose from a combination of using a pick and playing closer to the guitar neck. There were also differences in how much a thumb, finger, and pick slip off the string:  use of the thumb (Montgomery) produced more of a "pluck" compared to the pick (Pass), which produced more of a "strike." Gokani and Wilson think their model could be used to synthesize digital guitars with a more realistic sound, as well as helping guitarists better emulate Pass and Montgomery. Sounds of an ancient underground city Credit: Sezin Nas Turkey is home to the underground city Derinkuyu, originally carved out inside soft volcanic rock around the 8th century BCE. It was later expanded to include four main ventilation channels (and some 50,000 smaller shafts) serving seven levels, which could be closed off from the inside with a large rolling stone. The city could hold up to 20,000 people and it  was connected to another underground city, Kaymakli, via tunnels. Derinkuyu helped protect Arab Muslims during the Arab-Byzantine wars, served as a refuge from the Ottomans in the 14th century, and as a haven for Armenians escaping persecution in the early 20th century, among other functions. The tunnels were rediscovered in the 1960s and about half of the city has been open to visitors since 2016. The site is naturally of great archaeological interest, but there has been little to no research on the acoustics of the site, particularly the ventilation channels—one of Derinkuyu's most unique features, according to Sezin Nas, an architectural acoustician at Istanbul Galata University in Turkey.  She gave a talk at a meeting of the Acoustical Society of America in New Orleans, LA, about her work on the site's acoustic environment. Nas analyzed a church, a living area, and a kitchen, measuring sound sources and reverberation patterns, among other factors, to create a 3D virtual soundscape. The hope is that a better understanding of this aspect of Derinkuyu could improve the design of future underground urban spaces—as well as one day using her virtual soundscape to enable visitors to experience the sounds of the city themselves. MIT's latest ping-pong robot Robots playing ping-pong have been a thing since the 1980s, of particular interest to scientists because it requires the robot to combine the slow, precise ability to grasp and pick up objects with dynamic, adaptable locomotion. Such robots need high-speed machine vision, fast motors and actuators, precise control, and the ability to make accurate predictions in real time, not to mention being able to develop a game strategy. More recent designs use AI techniques to allow the robots to "learn" from prior data to improve their performance. MIT researchers have built their own version of a ping-pong playing robot, incorporating a lightweight design and the ability to precisely return shots. They built on prior work developing the Humanoid, a small bipedal two-armed robot—specifically, modifying the Humanoid's arm by adding an extra degree of freedom to the wrist so the robot could control a ping-pong paddle. They tested their robot by mounting it on a ping-pong table and lobbing 150 balls at it from the other side of the table, capturing the action with high-speed cameras. The new bot can execute three different swing types (loop, drive, and chip) and during the trial runs it returned the ball with impressive accuracy across all three types: 88.4 percent, 89.2 percent, and 87.5 percent, respectively. Subsequent tweaks to theirrystem brought the robot's strike speed up to 19 meters per second (about 42 MPH), close to the 12 to 25 meters per second of advanced human players. The addition of control algorithms gave the robot the ability to aim. The robot still has limited mobility and reach because it has to be fixed to the ping-pong table but the MIT researchers plan to rig it to a gantry or wheeled platform in the future to address that shortcoming. Why orange cats are orange Credit: Astropulse/CC BY-SA 3.0 Cat lovers know orange cats are special for more than their unique coloring, but that's the quality that has intrigued scientists for almost a century. Sure, lots of animals have orange, ginger, or yellow hues, like tigers, orangutans, and golden retrievers. But in domestic cats that color is specifically linked to sex. Almost all orange cats are male. Scientists have now identified the genetic mutation responsible and it appears to be unique to cats, according to a paper published in the journal Current Biology. Prior work had narrowed down the region on the X chromosome most likely to contain the relevant mutation. The scientists knew that females usually have just one copy of the mutation and in that case have tortoiseshell (partially orange) coloring, although in rare cases, a female cat will be orange if both X chromosomes have the mutation. Over the last five to ten years, there has been an explosion in genome resources (including complete sequenced genomes) for cats which greatly aided the team's research, along with taking additional DNA samples from cats at spay and neuter clinics. From an initial pool of 51 candidate variants, the scientists narrowed it down to three genes, only one of which was likely to play any role in gene regulation: Arhgap36. It wasn't known to play any role in pigment cells in humans, mice, or non-orange cats. But orange cats are special; their mutation (sex-linked orange) turns on Arhgap36 expression in pigment cells (and only pigment cells), thereby interfering with the molecular pathway that controls coat color in other orange-shaded mammals. The scientists suggest that this is an example of how genes can acquire new functions, thereby enabling species to better adapt and evolve. DOI: Current Biology, 2025. 10.1016/j.cub.2025.03.075  (About DOIs). Not a Roman "massacre" after all Credit: Martin Smith In 1936, archaeologists excavating the Iron Age hill fort Maiden Castle in the UK unearthed dozens of human skeletons, all showing signs of lethal injuries to the head and upper body—likely inflicted with weaponry. At the time, this was interpreted as evidence of a pitched battle between the Britons of the local Durotriges tribe and invading Romans. The Romans slaughtered the native inhabitants, thereby bringing a sudden violent end to the Iron Age. At least that's the popular narrative that has prevailed ever since in countless popular articles, books, and documentaries. But a paper published in the Oxford Journal of Archaeology calls that narrative into question. Archaeologists at Bournemouth University have re-analyzed those burials, incorporating radiocarbon dating into their efforts. They concluded that those individuals didn't die in a single brutal battle. Rather, it was Britons killing other Britons over multiple generations between the first century BCE and the first century CE—most likely in periodic localized outbursts of violence in the lead-up to the Roman conquest of Britain. It's possible there are still many human remains waiting to be discovered at the site, which could shed further light on what happened at Maiden Castle. DOI: Oxford Journal of Archaeology, 2025. 10.1111/ojoa.12324  (About DOIs). Jennifer Ouellette Senior Writer Jennifer Ouellette Senior Writer Jennifer is a senior writer at Ars Technica with a particular focus on where science meets culture, covering everything from physics and related interdisciplinary topics to her favorite films and TV series. Jennifer lives in Baltimore with her spouse, physicist Sean M. Carroll, and their two cats, Ariel and Caliban. 4 Comments

This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. OpenAI: The power and the pride OpenAI’s release of ChatGPT 3.5 set in motion an AI arms race that has changed the world. How that turns out for humanity is something we are still reckoning with and may be for quite some time. But a pair of recent books both attempt to get their arms around it.In Empire of AI: Dreams and Nightmares in Sam Altman’s OpenAI, Karen Hao tells the story of the company’s rise to power and its far-reaching impact all over the world. Meanwhile, The Optimist: Sam Altman, OpenAI, and the Race to Invent the Future, by the Wall Street Journal’s Keach Hagey, homes in more on Altman’s personal life, from his childhood through the present day, in order to tell the story of OpenAI.  Both paint complex pictures and show Altman in particular as a brilliantly effective yet deeply flawed creature of Silicon Valley—someone capable of always getting what he wants, but often by manipulating others. Read the full review.—Mat Honan This startup wants to make more climate-friendly metal in the US The news: A California-based company called Magrathea just turned on a new electrolyzer that can make magnesium metal from seawater. The technology has the potential to produce the material, which is used in vehicles and defense applications, with net-zero greenhouse-gas emissions. Why it matters: Today, China dominates production of magnesium, and the most common method generates a lot of the emissions that cause climate change. If Magrathea can scale up its process, it could help provide an alternative source of the metal and clean up industries that rely on it, including automotive manufacturing. Read the full story. —Casey Crownhart A new sodium metal fuel cell could help clean up transportation A new type of fuel cell that runs on sodium metal could one day help clean up sectors where it’s difficult to replace fossil fuels, like rail, regional aviation, and short-distance shipping. The device represents a departure from technologies like lithium-based batteries and is more similar conceptually to hydrogen fuel cell systems. The sodium-air fuel cell has a higher energy density than lithium-ion batteries and doesn’t require the super-cold temperatures or high pressures that hydrogen does, making it potentially more practical for transport. Read the full story. —Casey Crownhart The must-reads I’ve combed the internet to find you today’s most fun/important/scary/fascinating stories about technology. 1 The US state department is considering vetting foreign students’ social mediaAfter ordering US embassies to suspend international students’ visa appointments. (Politico)+ Applicants’ posts, shares and comments could be assessed. (The Guardian)+ The Trump administration also wants to cut off Harvard’s funding. (NYT $) 2 SpaceX’s rocket exploded during its test flight It’s the third consecutive explosion the company has suffered this year. (CNBC)+ It was the first significant attempt to reuse Starship hardware. (Space)+ Elon Musk is fairly confident the problem with the engine bay has been resolved. (Ars Technica)3 The age of AI layoffs is hereAnd it’s taking place in conference rooms, not on factory floors. (Quartz)+ People are worried that AI will take everyone’s jobs. We’ve been here before. (MIT Technology Review)4 Thousands of IVF embryos in Gaza were destroyed by Israeli strikesAn attack destroyed the fertility clinic where they were housed. (BBC)+ Inside the strange limbo facing millions of IVF embryos. (MIT Technology Review) 5 China’s overall greenhouse gas emissions have fallen for the first timeEven as energy demand has risen. (Vox)+ China’s complicated role in climate change. (MIT Technology Review) 6 The sun is damaging Starlink’s satellitesIts eruptions are reducing the satellite’s lifespans. (New Scientist $)+ Apple’s satellite connectivity dreams are being thwarted by Musk. (The Information $) 7 European companies are struggling to do business in ChinaEven the ones that have operated there for decades. (NYT $)+ The country’s economic slowdown is making things tough. (Bloomberg $) 8 US hospitals are embracing helpful robotsThey’re delivering medications and supplies so nurses don’t have to. (FT $)+ Will we ever trust robots? (MIT Technology Review) 9 Meet the people who write the text messages on your favorite show They try to make messages as realistic, and intriguing, as possible. (The Guardian) 10 Robot dogs are delivering parcels in AustinWell, over 100 yard distances at least. (TechCrunch) Quote of the day “I wouldn’t say there’s hope. I wouldn’t bet on that.” —Michael Roll, a partner at law firm Roll & Harris, explains to Wired why businesses shouldn’t get their hopes up over obtaining refunds for Donald Trump’s tariff price hikes. One more thing Is the digital dollar dead?In 2020, digital currencies were one of the hottest topics in town. China was well on its way to launching its own central bank digital currency, or CBDC, and many other countries launched CBDC research projects, including the US.How things change. The digital dollar—even though it doesn’t exist—has now become political red meat, as some politicians label it a dystopian tool for surveillance. So is the dream of the digital dollar dead? Read the full story. —Mike Orcutt We can still have nice things A place for comfort, fun and distraction to brighten up your day. (Got any ideas? Drop me a line or skeet ’em at me.) + Recently returned from vacation? Here’s how to cope with coming back to reality.+ Reconnecting with friends is one of life’s great joys.+ A new Parisian cocktail bar has done away with ice entirely in a bid to be more sustainable.+ Why being bored is good for you—no, really.

Want more housing market stories from Lance Lambert’s ResiClub in your inbox? Subscribe to the ResiClub newsletter. Zillow economists have an economic model known as the Zillow Market Heat Index to gauge the competitiveness of housing markets across the country. This model looks at key indicators—including home price changes, inventory levels, and days on market—to generate a score showing whether a market favors sellers or buyers. A higher score indicates a hotter metro-level housing market where sellers have more power. A lower score indicates a colder metro-level housing market where buyers have more power. According to Zillow, a score of 70 or above is a strong sellers market, and a score from 55 to 69 is a sellers market. A score of 44 to 55 indicates a neutral market. A score from 28 to 44 reflects a buyers market, and a score of 27 or below is a strong buyers market. Nationally, Zillow rates the U.S. housing market at 55 for its April 2025 reading, published in May 2025, right on the border between a sellers market and a neutral market. That said, Zillow’s reading varies significantly across the county. Among the 250 largest metro area housing markets, these 10 are the hottest markets, where sellers have the most power, according to Zillow: Rochester, NY: 169 Buffalo, NY: 126 Charleston, WV: 107 Syracuse, NY: 105 Hartford, CT: 97 Albany, NY: 97 Manchester, NH: 93 Anchorage, AK: 86 Boston, MA: 85 Lansing, MI: 85 And these 10 are the coldest markets, where buyers have the most power, according to Zillow: Jackson, TN: 23 Macon, GA: 25 Gulfport, MS: 26 Brownsville, TX: 27 Naples, FL: 27 Cape Coral, FL: 30 Daphne, AL: 30 Panama City, FL: 30 Punta Gorda, FL: 31 Beaumont, TX: 33 5 takeaways on Zillow’s latest assessment Directionally, there’s a lot Zillow gets right. We believe Zillow has correctly identified many regional housing markets where buyers have gained the most leverage—particularly around the Gulf. It also highlights areas where sellers have maintained, relatively speaking, some degree of control, including large portions of the Northeast and Midwest. In ResiClub’s view, Zillow is slightly overstating Northeast and Midwest tightness. While there are still some relatively competitive pockets in those regions, Zillow’s model appears to exaggerate the strength of seller conditions. In the real world, many of these markets feel more neutral or only slightly tilted toward sellers—not full-blown “strong sellers markets” as the model suggests. Zillow also appears to be overstating seller strength on the West Coast. Conditions on the West Coast have clearly softened over the past year, and Zillow’s model doesn’t fully reflect that shift. The softest housing markets right now are Southwest Florida and Central Texas. Based on our own housing market analysis, Florida, in particular, Southwest Florida currently stands out as the softest region in the country, followed by Central Texas markets such as Austin and San Antonio. Zillow’s Market Heat Index is useful—but I believe ResiClub’s monthly reports—especially our inventory analysis across +800 metros and +3,000 counties and our home price analysis across 800+ metros and 3,000+ counties—do a better job of keeping housing stakeholders ahead of market shifts and better informed on current market dynamics. What did this Zillow analysis look like back in spring 2022 at the climax of the pandemic housing boom? Below is Zillow’s April 2022 reading—published in May 2022.

Researchers at the University of Texas at Austin have developed a novel resin system for multicolor digital light processing (DLP) 3D printing that enables rapid fabrication of freestanding and non-assembly structures using dissolvable supports. The work, led by Zachariah A. Page and published in ACS Central Science, combines UV- and visible-light-responsive chemistries to produce materials with distinct solubility profiles, significantly streamlining post-processing. Current DLP workflows are often limited by the need for manually removed support structures, especially when fabricating components with overhangs or internal joints. These limitations constrain automation and increase production time and cost. To overcome this, the team designed wavelength-selective photopolymer resins that form either an insoluble thermoset or a readily dissolvable thermoplastic, depending on the light color used during printing. In practical terms, this allows supports to be printed in one material and rapidly dissolved using ethyl acetate, an environmentally friendly solvent, without affecting the primary structure. The supports dissolve in under 10 minutes at room temperature, eliminating the need for time-consuming sanding or cutting. Illustration comparing traditional DLP 3D printing with manual support removal (A) and the new multicolor DLP process with dissolvable supports (B). Image via University of Texas at Austin. The research was supported by the U.S. Army Research Office, the National Science Foundation, and the Robert A. Welch Foundation. The authors also acknowledge collaboration with MonoPrinter and Lawrence Livermore National Laboratory. High-resolution multimaterial printing The research showcases how multicolor DLP can serve as a precise multimaterial platform, achieving sub-100 μm feature resolution with layer heights as low as 50 μm. By tuning the photoinitiator and photoacid systems to respond selectively to ultraviolet (365 nm), violet (405 nm), or blue (460 nm) light, the team spatially controlled polymer network formation in a single vat. This enabled the production of complex, freestanding structures such as chainmail, hooks with unsupported overhangs, and fully enclosed joints, which traditionally require extensive post-processing or multi-step assembly. The supports, printed in a visible-light-cured thermoplastic, demonstrated sufficient mechanical integrity during the build, with tensile moduli around 160–200 MPa. Yet, upon immersion in ethyl acetate, they dissolved within 10 minutes, leaving the UV-cured thermoset structure intact. Surface profilometry confirmed that including a single interface layer of the dissolvable material between the support and the final object significantly improved surface finish, lowering roughness to under 5 μm without polishing. Computed tomography scans validated geometric fidelity, with dimensional deviations from CAD files as low as 126 μm, reinforcing the method’s capability for high-precision, solvent-cleared multimaterial printing. Comparison of dissolvable and traditional supports in DLP 3D printing. (A) Disk printed with soluble supports using violet light, with rapid dissolution in ethyl acetate. (B) Gravimetric analysis showing selective mass loss. (C) Mechanical properties of support and structural materials. (D) Manual support removal steps. (E) Surface roughness comparison across methods. (F) High-resolution test print demonstrating feature fidelity. Image via University of Texas at Austin. Towards scalable automation This work marks a significant step toward automated vat photopolymerization workflows. By removing manual support removal and achieving clean surface finishes with minimal roughness, the method could benefit applications in medical devices, robotics, and consumer products. The authors suggest that future work may involve refining resin formulations to enhance performance and print speed, possibly incorporating new reactive diluents and opaquing agents for improved resolution. Examples of printed freestanding and non-assembly structures, including a retainer, hook with overhangs, interlocked chains, and revolute joints, before and after dissolvable support removal. Image via University of Texas at Austin. Dissolvable materials as post-processing solutions Dissolvable supports have been a focal point in additive manufacturing, particularly for enhancing the efficiency of post-processing. In Fused Deposition Modeling (FDM), materials like Stratasys’ SR-30 have been effectively removed using specialized cleaning agents such as Oryx Additive‘s SRC1, which dissolves supports at twice the speed of traditional solutions. For resin-based printing, systems like Xioneer‘s Vortex EZ employ heat and fluid agitation to streamline the removal of soluble supports . In metal additive manufacturing, innovations have led to the development of chemical processes that selectively dissolve support structures without compromising the integrity of the main part . These advancements underscore the industry’s commitment to reducing manual intervention and improving the overall efficiency of 3D printing workflows. Read the full article in ACS Publications. Subscribe to the 3D Printing Industry newsletter to keep up with the latest 3D printing news. You can also follow us onLinkedIn and subscribe to the 3D Printing Industry YouTube channel to access more exclusive content. At 3DPI, our mission is to deliver high-quality journalism, technical insight, and industry intelligence to professionals across the AM ecosystem.Help us shape the future of 3D printing industry news with our2025 reader survey. Featured image shows: Hook geometry printed using multicolor DLP with dissolvable supports. Image via University of Texas at Austin.

Welcome back to TechCrunch Mobility — your central hub for news and insights on the future of transportation. Sign up here for free — just click TechCrunch Mobility! It might have been a short week, but there was still plenty of news, including another Zoox recall, an update on the Stellantis-Amazon partnership, and a few startup-funding deals.  One item of note: This week, I wrote about Carma Technology and its patent infringement lawsuit against Uber. This isn’t a patent troll situation, and the IP attorneys I have spoken with say it will be a challenging case for Uber.  The gist? Carma, which was formed in 2007 by serial entrepreneur and SOSV Ventures founder Sean O’Sullivan, filed a lawsuit earlier this year against Uber, alleging the company infringed on five of its patents that are related to the system of matching riders (or packages) with capacity in vehicles. In other words, ride-sharing. IP attorney Larry Ashery provided the money quote that explains why this is such a complicated and challenging case.  “What’s important to understand here is, Carma isn’t just asserting five patents. They have had a very sophisticated strategy of patent procurement that they’ve been working on for the past 18 years.” Carma’s five patents are part of a 30-patent family that are all related and connected to the original filing date. That matters because each of the five asserted patents contains multiple patent claims, which define the legal boundaries of the invention. These individual claims — not just the patents as a whole — are what Carma is asserting against Uber.That means Uber will have to address and defend against each asserted claim, making the litigation more complex and difficult to defeat, Ashery noted.  Techcrunch event Save now through June 4 for TechCrunch Sessions: AI Save $300 on your ticket to TC Sessions: AI—and get 50% off a second. Hear from leaders at OpenAI, Anthropic, Khosla Ventures, and more during a full day of expert insights, hands-on workshops, and high-impact networking. These low-rate deals disappear when the doors open on June 5. Exhibit at TechCrunch Sessions: AI Secure your spot at TC Sessions: AI and show 1,200+ decision-makers what you’ve built — without the big spend. Available through May 9 or while tables last. Berkeley, CA | June 5 REGISTER NOW Let’s get into the rest of the news.  A little bird Image Credits:Bryce Durbin A few little birds have been chirping at us for months now about a new autonomous vehicle technology startup that has been quietly plugging along for a year. The interesting nugget about this startup — which is called Bedrock Robotics — is who is behind it: Boris Sofman, who led Waymo’s self-driving trucks program and previously co-founded and led the popular consumer robotics company Anki.  The San Francisco-based startup is still in stealth, but my sources tell me it has raised considerable venture funds. Bedrock Robotics is working on a self-driving kit that retrofits onto construction equipment and other heavy machinery, according to a filing with the U.S. Patent and Trademark Office.  Got a tip for us? Email Kirsten Korosec at kirsten.korosec@techcrunch.com or my Signal at kkorosec.07, Sean O’Kane at sean.okane@techcrunch.com, or Rebecca Bellan at rebecca.bellan@techcrunch.com. Or check out these instructions to learn how to contact us via encrypted messaging apps or SecureDrop. Deals! Image Credits:Bryce Durbin Firefly Aerospace received a $50 million investment from Northrop Grumman as part of its Series D round. This investment will further advance production of the startup’s  co-developed medium launch vehicle, now known as Eclipse. Pallet, a warehouse logistics software startup based in Fremont, California, raised $27 million in a Series B funding round led by General Catalyst. Bain Capital Ventures, Activant Capital, and Bessemer Venture Partners also participated. Volteras, a London-based startup building virtual connective tissue that will allow plugged-in EVs to offer their batteries to support the grid, closed an $11.1 million Series A led by Union Square Ventures, with participation from Edenred, Exor, Long Journey Ventures, and Wex. Way Data Technologies, a fleet management startup founded by veterans of Lucid Motors and Wolt, raised €2.6 million ($2.95 million) in pre-seed funding led by Pale Blue Dot, with participation from 10x Founders and Greens Ventures.  Notable reads and other tidbits Image Credits:Bryce Durbin Autonomous vehicles Rivr’s four-wheeled, stair-climbing delivery robot — which its CEO and founder, Marko Bjelonic, describes as a dog on roller skates — will ferry packages from Veho vans directly to customers’ front doors as part of a pilot program in Austin, Texas. Both companies see this small pilot as a critical step toward solving a unique slice of the end-to-end autonomous delivery journey.   TuSimple (now CreateAI) sent a trove of sensitive data — effectively the blueprint of an American-made autonomous vehicle system — to a Beijing-owned firm after committing to the U.S. government that it would cease such transfers under a national security agreement. The revelation, first reported by the Wall Street Journal, prompted numerous “not surprised” responses from several readers and sources within the industry. Zoox issued its second voluntary software recall in a month, following a collision between one of its robotaxis and an e-scooter rider in San Francisco on May 8. The incident is notable, largely for what happened after the unoccupied Zoox vehicle operating at low speed was struck by the e-scooter after braking to yield at an intersection.  According to Zoox, the e-scooterist fell to the ground directly next to the vehicle and the “robotaxi began to move and stopped after completing the turn, but did not make further contact with the e-scooterist.” In other Zoox news, the company announced it was the “official robotaxi partner of Resorts World Las Vegas.” As part of the deal, there will be a dedicated and Zoox-branded robotaxi pickup and drop-off location at Resorts World Las Vegas.  Electric vehicles, charging, & batteries The Tesla Cybertruck is having a rough time. Dozens of unsold Tesla Cybertrucks are piling up at a Detroit shopping center parking lot. And while Cybertruck owners are now allowed by Tesla to trade in their vehicles for the first time since they hit the market, they’ll face a steep depreciation hit. CarGurus recently showed depreciation rates of up to 45%. Meanwhile, Tesla sales in Europe and the U.K. have fallen by nearly half, according to data released by the European Automobile Manufacturers Association.  The Volkswagen emissions cheating scandal of 2015 rippled through the automotive sector and prompted the company (and later followed by others) to shift away from diesel and toward hybrids and electric vehicles. Now, four former Volkswagen executives have received prison sentences for their role. In-car tech Amazon is no longer working with Stellantis to create in-car software for the automaker’s vehicles. The partnership, first announced in January 2022, was part of Stellantis’ plan to generate $22.5 billion annually from software. Stellantis told TechCrunch it would be pivoting to an Android-based system.

Molecular Rebar Design, a nanomaterials company based in Austin, Texas, has patented a new additive manufacturing (AM) composition that utilizes oxidized discrete carbon nanotubes (CNTs) with bonded dispersing agents to enhance 3D printing resins. The patent, published under US20210237509A1, outlines methods to improve resin properties for applications such as vat photopolymerization, sintering, and thermoplastic fusion. The inventors, Clive P. Bosnyak, Kurt W. Swogger, Steven Lowder, and Olga Ivanova, propose formulations that improve electrical conductivity, thermal stability, and mechanical strength, while overcoming dispersion challenges common with CNTs in composite materials. Image shows a schematic diagram of functionalized carbon nanotubes. Image via Molecular Rebar Design. Functionalized CNTs for additive manufacturing At the core of the invention is the chemical functionalization of CNTs with dispersing agents bonded to their sidewalls, enabling higher aspect ratios and more homogeneous dispersions. These dispersions integrate into UV-curable acrylates, thermoplastics, and elastomers, yielding improved green strength, sinterability, and faster cure rates. The patent emphasizes the benefit of using bimodal or trimodal distributions of CNT diameters (single-, double-, or multi-wall) to tune material performance. Additional fillers such as carbon black, silica, and metallic powders can also be incorporated for applications ranging from electronic encapsulation to impact-resistant parts. Experimental validation To validate the invention, the applicants oxidized carbon nanotubes using nitric acid and covalently bonded them with polyether dispersing agents such as Jeffamine M2005. These modified CNTs were incorporated into photopolymer resin formulations. In tensile testing, specimens produced with the dispersions demonstrated enhanced mechanical performance, with yield strengths exceeding 50 MPa and Young’s modulus values above 2.8 GPa. Impact strength improved by up to 90% in certain formulations compared to control samples without CNTs. These performance gains suggest suitability for applications demanding high strength-to-weight ratios, such as aerospace, electronics, and structural components. Nanotube innovations in AM Carbon nanotubes (CNTs) have long been explored for additive manufacturing (AM) due to their exceptional mechanical and electrical properties. However, challenges such as poor dispersion and inconsistent aspect ratios have hindered their widespread adoption in AM processes. Recent advancements aim to overcome these barriers by integrating oxidation and dispersion techniques into scalable production methods. For instance, researchers at Rice University have developed a novel acid-based solvent that prevents the common “spaghetti effect” of CNTs tangling together. This innovation simplifies the processing of CNTs, potentially enabling their scale-up for industrial 3D printing applications. Similarly, a research team led by the University of Glasgow has created a 3D printable CNT-based plastic material capable of sensing its own structural health. This material, inspired by natural porous structures, offers enhanced toughness and strength, with potential applications in medicine, prosthetics, automotive, and aerospace design. Subscribe to the 3D Printing Industry newsletter to keep up with the latest 3D printing news. You can also follow us onLinkedIn and subscribe to the 3D Printing Industry YouTube channel to access more exclusive content. At 3DPI, our mission is to deliver high-quality journalism, technical insight, and industry intelligence to professionals across the AM ecosystem.Help us shape the future of 3D printing industry news with our2025 reader survey. Feature image shows schematic diagram of functionalized carbon nanotubes. Image via Molecular Rebar Design.