Key TakeawaysAs per inside sources, Elon Musks AI company xAI has managed to secure $6 billion in funding.The bigger chunk of the funding, $5 billion, comes from Middle Eastern sovereign funds whereas the rest of the $1 billion came from other investors.This money will be used to purchase 100,000 Nvidia chips that will power the upcoming line of Teslas Full self-driving cars.Elon Musks AI company xAi has managed to raise $6 billion in funding. This round of funding will increase the valuation of the company to $50 billion, more than doubling the valuation of $24 billion in its last round of funding in May.As per inside sources, the funding is coming in two parts. $5 billion will be coming from sovereign funds from the Middle East and the remaining $1 billion will be coming from other investors.Some of these investors are new and the rest are simply renewing their funding. All the deals are expected to close by next week.As per sources close to the company, this money will be used to purchase 100,000 Nvidia chips. These chips will power the new Memphis supercomputer which in turn will power Teslas upcoming line of Full Self Driving cars.The Trajectory of xAIs JourneyxAI was launched in July 2023 and in just a little over a year, it has made significant progress.It started with the release of an AI-powered chatbot called GrokAI to compete with leading industry players such as ChatGPT and Gemini. After its success, two newer versions Grok AI 2 and GrokAI Mini were also released shortly after, with the added feature of image generation.Up until now, GrokAI has only been available to paid users. However, as per recent reports, the company is also testing a free version that will be available to all users.And now comes the biggest news the xAI Colossus, the worlds largest AI supercomputer, received approval from the Tennessee Valley Authority in early November. It will now get 150mw of power from the states grid (previously it was only getting 8mw), allowing it to train GrokAIs family of large language models for efficiency.Such a huge power demand has naturally raised concerns from local activists. However, experts estimated that it actually requires at least 155mw to run the 100,000 GPUs that are powering the system. So Musks demand for 150 is actually quite conservative.Add Techreport to Your Google News Feed Get the latest updates, trends, and insights delivered straight to your fingertips. Subscribe now! Subscribe now Krishi is an eager Tech Journalist and content writer for both B2B and B2C, with a focus on making the process of purchasing software easier for businesses and enhancing their online presence and SEO.Krishi has a special skill set in writing about technology news, creating educational content on customer relationship management (CRM) software, and recommending project management tools that can help small businesses increase their revenue.Alongside his writing and blogging work, Krishi's other hobbies include studying the financial markets and cricket. View all articles by Krishi Chowdhary Our editorial processThe Tech Reporteditorial policyis centered on providing helpful, accurate content that offers real value to our readers. We only work with experienced writers who have specific knowledge in the topics they cover, including latest developments in technology, online privacy, cryptocurrencies, software, and more. Our editorial policy ensures that each topic is researched and curated by our in-house editors. We maintain rigorous journalistic standards, and every article is 100% written byreal authors.

Key TakeawaysThe House Select Committee on China has raised concerns over Amazons latest e-commerce deal with TikTok.The Committee had called for a meeting with Amazon representatives where they were advised against the partnership.TikTok is being deemed a threat to national security and is on the verge of being banned in the US. So naturally, this partnership is not being received well by authorities.Amazons controversial partnership with TikTok amidst trouble between the US and China has invited questions from the House Select Committee on China.In recent months, a few representatives from the company also met with the Committee members at Capitol Hill sometime in September to discuss the sudden increasing closeness between the two companies. This has been directly confirmed by a spokesperson from the committee.The Committee has told Amazon that this is a dangerous deal and its unwise for the company to partner up with TikTok as it poses a severe threat to the countrys national security.This isnt the first time that TikTok has been accused of being a threat to the US. The company has been under fire for months. In March 2024, US lawmakers presented a new bill that would force TikTok to either cut ties with its parent company Bytedance, or risk getting banned in the US.The reason behind such a bill is that the tension between the US and China has been growing unchecked for the past many months. This has led US lawmakers to believe that China might leverage its influence on apps like TikTok to spy on US citizens.Although TikTok has assured time and again that it never transferred any US citizen data to Chinese authorities, US authorities didnt budge. At last, TikTok has decided to legally challenge this bill the battle is still underway.Like many other US companies, we maintain open lines of communication with officials across all levels of government to discuss issues that are of interest to policymakers, our employees, and our customers. AmazonThe deal was announced in August which allows TikTok users to shop Amazon products without leaving the TikTok platform. This will be executed in three ways:link their Amazon accounts with their TikTok profiles so they can check the pricing of the products in real time. product suggestions on the For You page with clickable links.This partnership is a win-win situation for both companies. Amazon gets to tap into TikToks massive GenZ user base while TikTok gets to gain more credibility and firmly plant its feet in the US amidst the rising pressure of a possible ban.However, its hard to say whether business expansion is the only motive for this deal. Amazon has been a top advertiser on TikTok US for many years, but some industry experts believe that the main motive for this deal is to make it harder for the authorities to ban TikTok.If that is the case, Amazon isnt the only one. The NFL, music distribution platform UnitedMasters, social shopping tool LTK, and sports and venue management company Monumental Sports & Entertainment have also signed deals with TikTok.Again, no one said outright that they dont believe TikTok will be banned. However, since Donald Trump won the recent elections and is also against this ban, things might actually go in TikToks favor.Add Techreport to Your Google News Feed Get the latest updates, trends, and insights delivered straight to your fingertips. Subscribe now! Subscribe now Krishi is an eager Tech Journalist and content writer for both B2B and B2C, with a focus on making the process of purchasing software easier for businesses and enhancing their online presence and SEO.Krishi has a special skill set in writing about technology news, creating educational content on customer relationship management (CRM) software, and recommending project management tools that can help small businesses increase their revenue.Alongside his writing and blogging work, Krishi's other hobbies include studying the financial markets and cricket. View all articles by Krishi Chowdhary Our editorial processThe Tech Reporteditorial policyis centered on providing helpful, accurate content that offers real value to our readers. We only work with experienced writers who have specific knowledge in the topics they cover, including latest developments in technology, online privacy, cryptocurrencies, software, and more. Our editorial policy ensures that each topic is researched and curated by our in-house editors. We maintain rigorous journalistic standards, and every article is 100% written byreal authors.

WTF?! Garbage collectors often stumble upon valuable or undamaged items, but finding a mostly functional, high-end PC might rank among one of the luckiest recent finds. Although the components are a few years old, the system booted flawlessly after a few smart repairs and minor replacements. Redditor and garbage truck driver "Siezio" recently shared, then deleted, photos of a gaming PC he salvaged from the trash and easily restored. The rig included an AMD Ryzen Threadripper 3970X, a GeForce RTX 2080 Ti with 11GB of VRAM, and 32GB of DDR4 RAM.The only missing component was internal storage, and Siezio replaced the water-damaged power supply unit (PSU) as a precaution. After thoroughly cleaning the other components with isopropyl alcohol and letting them dry for two days, the system powered on without issue.While Siezio had previously found other PCs in the trash, they were either severely damaged or decades out of date. In contrast, the 3970X and 2080 Ti are relatively modern, only five and six years old, respectively. Both were enthusiast-class components at launch and still hold up well today.The Threadripper 3970X is a 32-core monster that debuted in 2019 with a $1,999 price tag. We gave the workstation processor a glowing review upon its 2019 release.Meanwhile, the GPU, initially priced at $999, was a flagship beast when it debuted in 2018. It last appeared in our benchmark tests for Warhammer 40,000: Space Marine 2 last September, where it performed similarly to recent mid-range graphics cards like the RTX 3060 Ti. Purchasing a used 3970X and 2080 Ti together in 2024 would likely cost around $1,000. // Related StoriesUnsurprisingly, many commenters responded to Siezio's discovery with jealousy, wondering why someone would throw away a PC that likely cost over $3,000 without at least attempting to sell it. The hardware was released just before events like the cryptocurrency mining boom, import tariffs, and supply chain disruptions drove up electronics prices.Though the PC is the most valuable salvage from Siezio's three-and-a-half-year career, it is far from the only useful discovery. The truck driver has also found a power drill worth 250, multiple ratchet sets, an unopened Bluetooth keyboard that now controls his TV, and a chainsaw that only required a new spark plug.Furthermore, nearly all of Siezio's car tools were rescued from the trash. While most of the items were initially broken, repair guides on YouTube made restoring them straightforward.Images via Tom's Hardware

AI startup Perplexity has launched a new shopping feature that it describes as a one-stop solution where you can research and purchase products.Available initially for U.S.-based users of its paid Pro subscription tier before expanding soon internationally, Perplexity Shopping is a shot across the bows of rival services like Google and Amazon as the company seeks to attract more users to its AI chatbot while building out related services like search and online shopping.Recommended VideosYou can use it to research and make purchases on all things like building your library, buying electronics for throwing a party, and so on, the San Francisco-based company said in a thread on X that also included a short video (below) showing the new feature in action. Introducing Perplexity Shopping: a one-stop solution where you can research and purchase products. It marks a big leap forward in how we serve our users empowering seamless native actions right from an answer. Shopping online just got 10x more easy and fun. pic.twitter.com/gjMZO6VIzQ Perplexity (@perplexity_ai) November 18, 2024The video shows how you can enter queries in a conversational way, just as you would with any other AI chatbot. It also lets you refine results via follow-up responses like, Under $100.Perplexity Shopping includes features such as a one-click checkout designed to save you time by having purchases fully processed within the app instead of being transferred across to the merchants site. Just save your shipping and billing information through our secure portal and select Buy with Pro to place your order, the company explained, adding that all Buy with Pro orders come with free shipping. In cases where Buy with Pro isnt available, you will be redirected to the merchants website to complete the purchase.The new tool also includes a Snap to Shop visual search tool that shows you relevant products in response to any images that you upload, helping you to find an item even when you dont have a name for it.In an apparent swipe at Google, Perplexity points out that its shopping suggestions arent sponsored, describing its results as unbiased recommendations that are powered by AI and based on in-platform reviews. When you ask Perplexity a shopping question, youll still get the precise, objective answers you expect, plus easy-to-read product cards showing the most relevant items, along with key details presented in a simple, visual format.Away from shopping, however, Perplexity recently revealed that it will start inserting ads into its general chatbot responses for users in the U.S. in the form of sponsored follow-up questions and paid media positioned to the side of an answer.Editors Recommendations

Stunning footage from the International Space Station (ISS) shows a glorious-looking aurora shimmering above our planet.Captured last month and shared by the ISS on X over the weekend, the footage (below) begins with a faint green tinge on Earths horizon as seen from the space station some 257 miles up. But as the video continues, the green tinge develops into something far more spectacular, all against a gorgeous star-filled backdrop.Recommended VideosThe International Space Station soars above an aurora blanketing the Earth underneath a starry sky before orbiting into a sunrise 257 miles above Quebec, Canada, on October 30, 2024, NASA said in a message accompanying the 60-second video.RelatedThe International Space Station soars above an aurora blanketing the Earth underneath a starry sky before orbiting into a sunrise 257 miles above Quebec, Canada, on Oct. 30, 2024. pic.twitter.com/fqp7tu57CZ International Space Station (@Space_Station) November 16, 2024Aurora, which are caused by the interaction of solar wind with the Earths magnetic field and atmosphere, are a common sight for astronauts aboard the ISS, especially during periods of heightened solar activity.NASA astronaut Matthew Dominick, who recently departed the station after a six-month stay in orbit, referred to aurora as insane, and shared an incredible video showing one streaming behind Boeings Starliner spacecraft when it was docked at the ISS earlier this year.After witnessing aurora from the orbital outpost, another NASA astronaut, Jasmin Moghbeli, commented, Every single time Im amazed at how alive and beautiful our planet is, while current ISS astronaut Don Pettit described a recent experience as, stunning. He added: We were not flying above the aurora, we were flying in the aurora. And it was blood red.Just last month, Pettit, who at 69 is NASAs oldest serving astronaut, expressed the phenomenon in his own unique way, saying: The sun goes burp and the atmosphere turns red.Editors Recommendations

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Meditations on the way songs affect us at the deepest level, and reflections on the joys of performing and composing.

Humbling findings Trust in scientists hasnt recovered from COVID. Some humility could help. Intellectual humility could win back much-needed trust in science, study finds Beth Mole Nov 18, 2024 4:52 pm | 110 Illustration of a scientist speaking in front of an audience. Credit: Getty | BRO Vector Illustration of a scientist speaking in front of an audience. Credit: Getty | BRO Vector Story textSizeSmallStandardLargeWidth *StandardWideLinksStandardOrange* Subscribers only Learn moreScientists could win back trust lost during the COVID-19 pandemic if they just showed a little intellectual humility, according to a study published Monday in Nature Human Behavior.It's no secret that scientistsand the science generallytook a hit during the health crisis. Public confidence in scientists fell from 87 percent in April 2000 to a low of 73 percent in October 2023, according to survey data from the Pew Research Center. And the latest Pew data released last week suggests it will be an uphill battle to regain what was lost, with confidence in scientists only rebounding three percentage points, to 76 percent in a poll from October.Building trustThe new study in Nature Human Behavior may guide the way forward, though. The study encompasses five smaller studies probing the perceptions of scientists' trustworthiness, which previous research has linked to willingness to follow research-based recommendations."These are anxiety-provoking times for people, and they feel uncertain about who to trust and which recommendations to follow," said study co-author Karina Schumann, a psychology professor at the University of Pittsburgh. "We wanted to know what can help people feel more confident putting their faith in scientists working to find solutions to some of the complex global challenges we are facing."Schumann and her colleagues homed in on the role of intellectual humility. Unlike general humility, intellectual humility focuses on the limitations of one's knowledge. Specifically, a scientist with high intellectual humility would show a willingness to admit gaps in their knowledge, listen to input from others, and update their views based on new evidence. These characteristics may be viewed by the public as particularly critical among scientists, given that science is rife with uncertainties and lacks complete and unequivocal conclusions, especially from individual studies.There's also good reason to think that scientists may be doing a poor job of displaying intellectual humility. The latest survey data from Pew found that 47 percent of Americans perceive scientists as feeling superior to others, and 52 percent indicated that scientists communicate poorly.Study seriesFor a look into how intellectual humility could help, Schumann and her colleagues first surveyed 298 people and looked to see if there was a link between viewing scientists as intellectually humble and believing in scientific topics considered polarizing. The sub-studystudy 1found strong links between the perceived intellectual humility of scientists, trustworthiness, and support for human-driven climate change, lifesaving vaccinations, and genetically modified foods.In studies 2 through 4, the researchers experimentally tested expressions of intellectual humility (IH)either high or low levelsand how they affected perceived trustworthiness. In study 2, for instance, 317 participants read one of three articles involving a fictional scientist named Susan Moore, who was researching treatments for long COVID. There was a neutral article that functioned as a control, and articles with cues that Dr. Moore had either high or low IH. The cues for high IH included text such as: "Dr. Moore is not afraid to admit when she doesnt yet know something." For low IH, the article included statements such as: "Dr. Moore is not afraid to assert what she knows."The high IH article spurred significantly more trust in Dr. Moore than the low IH articles, the researchers found. However, there wasn't a statistically significant difference in trust between the control and high IH groups. This might suggest that people may have a default assumption of high IH in scientists without other cuesor they are especially annoyed by low IH or arrogance among scientists.Study 3 essentially replicated study 2, but with the tweak that the articles varied whether the fictional scientist was male or female, in case gendered expectations affected how people perceived humility and trustworthiness. The results from 369 participants indicated that gender didn't affect the link between IH and trust. Similarly, in study 4, with 371 participants, the researchers varied the race/ethnicity of the scientist, finding again that the link between IH and trust remained."Together, these four studies offer compelling evidence that perceptions of scientists IH play an important role in both trust in scientists and willingness to follow their research-based recommendations," the authors concluded.Next stepsIn the final study involving 679 participants, researchers examined different ways that scientists might express IH, including whether the IH was expressed as a personal trait, limitations of research methods, or as limitations of research results. Unexpectedly, the strategies to express IH by highlighting limitations in the methods and results of research both increased perceptions of IH, but shook trust in the research. Only personal IH successfully boosted perceptions of IH without backfiring, the authors report.The finding suggests that more research is needed to guide scientists on how best to express high IH. But, it's clear that low IH is not good. "[W]e encourage scientists to be particularly mindful of displaying low IH, such as by expressing overconfidence, being unwilling to course correct or disrespecting others views," the researchers caution.Overall, Schumann said she was encouraged by the team's findings. "They suggest that the public understands that science isnt about having all the answers; it's about asking the right questions, admitting what we dont yet understand, and learning as we go. Although we still have much to discover about how scientists can authentically convey intellectual humility, we now know people sense that a lack of intellectual humility undermines the very aspects of science that make it valuable and rigorous. This is a great place to build from."Beth MoleSenior Health ReporterBeth MoleSenior Health Reporter Beth is Ars Technicas Senior Health Reporter. Beth has a Ph.D. in microbiology from the University of North Carolina at Chapel Hill and attended the Science Communication program at the University of California, Santa Cruz. She specializes in covering infectious diseases, public health, and microbes. 110 Comments

Allergic to "3" Valve developers discuss why Half Life 2: Episode 3 was abandoned Anniversary doc also includes footage of unused ice gun, blob enemies. Kyle Orland Nov 18, 2024 4:06 pm | 32 The ice gun would have been the main mechanical gimmick in Half-Life 2: Episode 3. Credit: Valve The ice gun would have been the main mechanical gimmick in Half-Life 2: Episode 3. Credit: Valve Story textSizeSmallStandardLargeWidth *StandardWideLinksStandardOrange* Subscribers only Learn moreAfter Ars spent Half-Life 2's 20th anniversary week looking back at the game's history and impact, Valve marked the occasion with a meaty two-hour YouTube documentary featuring insider memories from the team behind the game itself. Near the end of that documentary, longtime Valve watchers also get a chance to see footage of the long-promised but never-delivered Half-Life 2: Episode 3and hear more about what led the project to be abandoned.The Episode 3 footage included in the documentary focuses heavily on a new ice gun that would have served as the episode's main new feature. Players would have been able to use that gun to freeze enemies, set up ice walls as makeshift cover, or construct icy ledges to make their way down sheer cliff faces. The developers also describe a so-called "Silver Surfer mode" that would have let players extrude a line of ice in their path then slide along it at slippery speeds.The Episode 3 developers were also working on a new, blob-like enemy that could absorb other blobs to grow or split into segments to get around small barriers or pass through grates.Missing the momentAccording to the documentary, Valve spent about six months working on Episode 3 before deciding to pull all hands in to work on Left 4 Dead. At that point, the Episode 3 project was still an unordered set of playable levels set in the Arctic, with few story beats and concepts between them. Developers quoted in the documentary said it would have taken years of more work to get the episode into a releasable state.By the time work on Left 4 Dead was wrapping up in 2008, Valve was still publicly saying that it hoped Episode 3 would be ready by 2010. But after so much time spent away from the Episode 3 project, developers found it was hard to restart the momentum for a prototype that now felt somewhat dated. The technology behind these blob-like enemies ended up being reused for the paint in Portal 2. Credit: Valve Looking back, Valve Engineer David Speyrer said it was "tragic and almost comical" that "by the time we considered going back to Episode 3, the argument was made like, 'Well, we missed it. It's too late now. And we really need to make a new engine to continue the Half-Life series and all that.' And now that just seems, in hindsight, so wrong. We could have definitely gone back and spent two years to make Episode 3."Despite the new weapons and mechanics that were already in the works for Episode 3, many developers quoted in the documentary cite a kind of fatigue that had set in after so much time and effort focused on a single franchise. "A lot of us had been doing Half-Life for eight-plus years" designer and composer Kelly Bailey noted.That lengthy focus on a single franchise helps explain why some Valve developers were eager to work on anything else by that time in their careers. "I think everybody that worked on Half-Life misses working on that thing," Engineer Scott Dalton said. "But it's also hard not to be like, 'Man, I've kind of seen every way that you can fight an Antlion,' or whatever. And so you wanna get some space away from it until you can come back to it with fresh eyes."After the first two Half-Life 2 episodes were received less well than the base game itself, many developers cited in the documentary also said they felt pressure to go "much bigger" for Episode 3. Living up to that pressure, and doing justice to the fan expectations for the conclusion of the three-episode saga, proved to be too much for the team."You cant get lazy and say, 'Oh, were moving the story forward,' Valve co-founder Gabe Newell said of the pressure. "Thats copping out of your obligation to gamers, right? Yes, of course they love the story. They love many, many aspects of it. But sort of saying that your reason to do it is because people want to know what happens next... you know, we couldve shipped it, like, it wouldnt have been that hard."You know, the failure wasmy personal failure was being stumped," Newell continued. "Like, I couldnt figure out why doing Episode 3 was pushing anything forward."Kyle OrlandSenior Gaming EditorKyle OrlandSenior Gaming Editor Kyle Orland has been the Senior Gaming Editor at Ars Technica since 2012, writing primarily about the business, tech, and culture behind video games. He has journalism and computer science degrees from University of Maryland. He once wrote a whole book about Minesweeper. 32 Comments Prev story

It can be hard to keep weight offTero Vesalainen/Getty ImagesPeople with obesity who lose weight often put it back on, which may partly be driven by lasting changes to the DNA within their fat cells, a discovery that could one day lead to new treatments.Around 85 per cent of people with overweight or obesity who lose at least a tenth of their body weight regain it within a year. AdvertisementThat is partly because it is hard to maintain low-calorie diets for a long period of time, though that probably plays a relatively small role, says Laura Catharina Hinte at the Federal Institute of Technology Zurich in Switzerland. It cant be that we all dont have enough willpower to maintain lost weight.Studies have also shown that the brain interprets a sharp drop in body fat as dangerous and responds by making the body burn less energy.To learn more about this process, Hinte and her colleagues analysed fat tissue collected from 20 people with obesity just before they had bariatric surgery, which shrinks the stomach to make people feel fuller sooner, and again two years later, when they had lost at least a quarter of their initial body weight. They also looked at fat tissue from 18 people with a healthy weight. Get the most essential health and fitness news in your inbox every Saturday.Sign up to newsletterThe researchers sequenced a type of genetic molecule called RNA, which encodes proteins, in fat cells. They found that people with obesity had increased or decreased levels of more than 100 RNA molecules compared with people of a healthy weight, and these differences persisted at two years after weight loss.These changes seem to ramp up inflammation and disrupt how fat cells store and burn fat, both of which raise the risk of future weight gain, says team member Ferdinand von Meyenn, also at the Federal Institute of Technology Zurich.To explore whether these RNA changes might drive rebound weight gain, the researchers first confirmed that similar changes persisted after obese mice lost weight. They then fed these mice and mice of a healthy weight a high-fat diet for one month. While the previously obese mice gained 14 grams of weight, on average, the other mice gained just 5 grams.The team also found that fat cells from the previously obese mice took up more fat and sugar when grown in a lab dish than those from the other mice. Together, the results show how obesity-linked RNA changes may increase future weight gain, says von Meyenn.Finally, the team found that molecular tags, or epigenetic marks, on DNA in the fat cells seemed to drive the obesity-linked RNA changes. These alter RNA levels by changing the structure of the DNA that encodes them.While the study didnt look for these molecular tags in the people they studied, or examine whether they regained the weight they lost, the findings probably translate from mice to humans, says Henriette Kirchner at the University of Lbeck in Germany.This is based on similarities between the physiology of these species and how the environment can change the way their genes work, known as epigenetics, she says. In the decades to come, drugs that target epigenetics could help treat obesity, says Kirchner.Journal reference:Nature DOI: 10.1038/s41586-024-08165-7Topics:obesity