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The university blamed it on "the significant number of students" who violated their coding competition's rules. Long-time Slashdot reader theodp quotes this report from The Logic: Finding that many students violated rules and submitted code not written by themselves, the University of Waterloo's Centre for Computing and Math decided not to release results from its annual Canadian Computing Competition (CCC), which many students rely on to bolster their chances of being accepted into Waterloo's prestigious computing and engineering programs, or land a spot on teams to represent Canada in international competitions. "It is clear that many students submitted code that they did not write themselves, relying instead on forbidden external help," the CCC co-chairs explained in a statement. "As such, the reliability of 'ranking' students would neither be equitable, fair, or accurate." "It is disappointing that the students who violated the CCC Rules will impact those students who are deserving of recognition," the univeresity said in its statement. They added that they are "considering possible ways to address this problem for future contests."

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"The U.S. and Canadian websites for Lenovo offered U.S. $140 and CAD $211 off on the same ThinkPad X1 Carbon model when choosing any one of the Linux-based alternatives," reports It's FOSS News: This was brought to my attention thanks to a Reddit post... Others then chimed in, saying that Lenovo has been doing this since at least 2020 and that the big price difference shows how ridiculous Windows' pricing is... Not all models from their laptop lineup, like ThinkPad, Yoga, Legion, LOQ, etc., feature an option to get Linux pre-installed during the checkout process. Luckily, there is an easy way to filter through the numerous laptops. Just go to the laptops section (U.S.) on the Lenovo website and turn on the "Operating System" filter under the Filter by specs sidebar menu. The article end with an embedded YouTube video showing a VCR playing a videotape of a 1999 local TV news report... about the legendary "Windows Refund Day" protests. Slashdot ran numerous stories about the event — including one by Jon Katz...

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80-year-old George Lucas appeared this week at a 45th anniversary screening of The Empire Strikes Back, reports CNN — and finally gave a good explanation for why Yoda speaks the way he does. "He explained that it came about in order to ensure that the little alien's usually profound messages really landed with audiences." "Because if you speak regular English, people won't listen that much," Lucas said at the 2025 TCM Classic Film Festival, per Variety . "But if he had an accent, or it's really hard to understand what he's saying, they focus on what he's saying." Yoda was "basically the philosopher of the movie," the filmmaker added. "I had to figure out a way to get people to actually listen — especially 12-year-olds." Also this week, the verified Instagram accounts for Disney+, Star Wars and LucasFilm — Lucas' film and television production company — posted clips of Yoda doing bloopers on the set of "Star Wars" films, with [Frank] Oz continuing to do the voice and manipulate the heavy Yoda puppet even on takes that were unusable. Suffice it to say: One for the ages, Yoda is. Lucas also remembered how he'd "mounted a guerilla campaign to generate excitement" for the first Star Wars movie, reports Variety. ("I got the kids walking around Disneyland and the Comic Cons and all that kind of stuff... that's why Fox was so shocked when the first day the lines were all around the block.") And Variety says Lucas described a condition in his contract for Star Wars "that would again be life-changing, both for him and the entertainment industry as a whole." "I said, 'besides that, I'd like licensing.' They went, 'What's licensing?'" Unimpressed by the film, and colored by the history of movie merchandising to that point, the studio capitulated to his demands. "They talked to themselves, and they went, 'He's never going to be able to do that. It takes them a billion dollars and a year to make a toy or make anything. There's no money in that at all.'"

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Some patches for Linux 6.15-rc4 (updating the kernel driver for the Bcachefs file system) triggered some "straight-to-the-point wisdom" from Linus Torvalds about case-insensitive filesystems, reports Phoronix. Bcachefs developer Kent Overstreet started the conversation, explaining how some buggy patches for their case-insensitive file and folder support were upstreamed into the Bcachefs kernel driver nearly two years ago: When I was discussing with the developer who did the implementation, I noted that fstests should already have tests. However, it seems I neglected to tell him to make sure the tests actually run... It is _not_ enough to simply rely on the automated tests. You have to have eyes on what your code is doing. Overstreet added "There's a story behind the case insensitive directory fixes, and lessons to be learned." To which Torvalds replied.... "No." "The only lesson to be learned is that filesystem people never learn." Torvalds: Case-insensitive names are horribly wrong, and you shouldn't have done them at all. The problem wasn't the lack of testing, the problem was implementing it in the first place. The problem is then compounded by "trying to do it right", and in the process doing it horrible wrong indeed, because "right" doesn't exist, but trying to will make random bytes have very magical meaning. And btw, the tests are all completely broken anyway. Last I saw, they didn't actually test for all the really interesting cases — the ones that cause security issues in user land. Security issues like "user space checked that the filename didn't match some security-sensitive pattern". And then the shit-for-brains filesystem ends up matching that pattern *anyway*, because the people who do case insensitivity *INVARIABLY* do things like ignore non-printing characters, so now "case insensitive" also means "insensitive to other things too".... Dammit. Case sensitivity is a BUG. The fact that filesystem people *still* think it's a feature, I cannot understand. It's like they revere the old FAT filesystem _so_ much that they have to recreate it — badly. And this led to a very lively back-and-forth discussion. Slashdot's summary of the highlights:

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"4chan, down for more than a week after hackers got in through an insecure script that handled PDFs, is back online," notes BoingBoing. (They add that Thursday saw 4chan's first blog postin years — just the words "Testing testing 123 123...") But 4chan posted a much longer explanation on Friday," confirming their servers were compromised by a malicious PDF upload from "a hacker using a UK IP address," granting access to their databases and administrative dashboard. The attacker "spent several hours exfiltrating database tables and much of 4chan's source code. When they had finished downloading what they wanted, they began to vandalize 4chan at which point moderators became aware and 4chan's servers were halted, preventing further access." While not all of our servers were breached, the most important one was, and it was due to simply not updating old operating systems and code in a timely fashion. Ultimately this problem was caused by having insufficient skilled man-hours available to update our code and infrastructure, and being starved of money for years by advertisers, payment providers, and service providers who had succumbed to external pressure campaigns. We had begun a process of speccing new servers in late 2023. As many have suspected, until that time 4chan had been running on a set of servers purchased second-hand by moot a few weeks before his final Q&A [in 2015], as prior to then we simply were not in a financial position to consider such a large purchase. Advertisers and payment providers willing to work with 4chan are rare, and are quickly pressured by activists into cancelling their services. Putting together the money for new equipment took nearly a decade... The free time that 4chan's development team had available to dedicate to 4chan was insufficient to update our software and infrastructure fast enough, and our luck ran out. However, we have not been idle during our nearly two weeks of downtime. The server that was breached has been replaced, with the operating system and code updated to the latest versions. PDF uploads have been temporarily disabled on those boards that supported them, but they will be back in the near future. One slow but much beloved board, /f/ — Flash, will not be returning however, as there is no realistic way to prevent similar exploits using .swf files. We are bringing on additional volunteer developers to help keep up with the workload, and our team of volunteer janitors & moderators remains united despite the grievous violations some have suffered to their personal privacy. 4chan is back. No other website can replace it, or this community. No matter how hard it is, we are not giving up.

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An anonymous reader shared this report from Business Insider: A Lufthansa flight carrying 461 passengers had to divert after someone's tablet became "jammed" in a business-class seat. The Airbus A380 took off from Los Angeles on Wednesday, bound for Munich, and had been flying for around three hours when the pilots diverted to Boston Logan International Airport. In a statement to Business Insider, an airline spokesperson said the tablet had become "jammed in a Business Class seat" and had "already shown visible signs of deformation due to the seat's movements" when the flight diverted. [The aviation site] Simply Flying, which first reported the news, said the device was an iPad. The decision to divert was taken "to eliminate any potential risk, particularly with regard to possible overheating," the spokesperson added, saying that it was the joint decision of the crew and air traffic control. Lithium batteries pose a safety risk if damaged, punctured, or crushed... In a confined space like an aircraft cabin, a lithium battery fire poses a serious hazard to the passengers onboard. Last year, a Breeze Airways flight from Los Angeles to Pittsburgh had to make an emergency landing in Albuquerque after a passenger's laptop caught fire.

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"Future moon astronauts may find water more accessible than previously thought," writes Space.com, citing a new NASA-led experiment: Because the moon lacks a magnetic field like Earth's, the barren lunar surface is constantly bombarded by energetic particles from the sun... Li Hsia Yeo, a planetary scientist at NASA's Goddard Space Flight Center in Maryland, led a lab experiment observing the effects of simulated solar wind on two samples of loose regolith brought to Earth by the Apollo 17 mission... To mimic conditions on the moon, the researchers built a custom apparatus that included a vacuum chamber, where the samples were placed, and a tiny particle accelerator, which the scientists used to bombard the samples with hydrogen ions for several days. "The exciting thing here is that with only lunar soil and a basic ingredient from the sun — which is always spitting out hydrogen — there's a possibility of creating water," Yeo said in a statement. "That's incredible to think about." Supporting this idea, observations from previous moon missions have revealed an abundance of hydrogen gas in the moon's tenuous atmosphere. Scientists suspect that solar-wind-driven heating facilitates the combination of hydrogen atoms on the surface into hydrogen gas, which then escapes into space. This process also has a surprising upside, the new study suggests. Leftover oxygen atoms are free to bond with new hydrogen atoms formed by repeated bombardment of the solar wind, prepping the moon for more water formation on a renewable basis. The findings could help assess how sustainable water on the moon is, as the sought-after resource is crucial for both life support and as propellant for rockets. The team's study was published in March in the journal JGR Planets . NASA created a fascinating animation showing how water is released from the Moon during meteor showers. (In 2016 scientists discovered that when speck of comet debris vaporize on impact, they create shock waves in the lunar soil which can sometimes breach the dry upper layer, releasing water molecules from the hydrated layer below...)

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Slashdot reader itwbennett writes: Personal health information on 4.7 million Blue Shield California subscribers was unintentionally shared between Google Analytics and Google Ads between April 2021 and January 2025 due to a misconfiguration error. Security consultant and SANS Institute instructor Brandon Evans points to two lessons to take from this debacle: Read the documentation of any third party service you sign up for, to understand the security and privacy controls;Know what data is being collected from your organization, and what you don't want shared. "If there is a concern by the organization that Google Ads would use this information, they should really consider whether or not they should be using a platform like Google Analytics in the first place," Evans says in the article. "Because from a technical perspective, there is nothing stopping Google from sharing the information across its platform... "Google definitely gives you a great bunch of controls, but technically speaking, that data is within the walls of that organization, and it's impossible to know from the outside how that data is being used."

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"Google-owned YouTube's revenue last year was estimated to be $54.2 billion," reports the Los Angeles Times, "which would make it the second-largest media company behind Walt Disney Co., according to a recent report from research firm MoffettNathanson, which called YouTube 'the new king of all media.'" YouTube, run by Chief Executive Neal Mohan since 2023, accounted for 12% of U.S. TV viewing in March, more than other rival streaming platforms including Netflix and Tubi, according to Nielsen... More people are watching YouTube on TV sets rather than on smartphones and computer screens, consuming more than 1 billion hours on average of YouTube content on TV daily, the company said on its website. When YouTube first started its founders envisioned it as a dating site, according to the article, "where people would upload videos and score them. When that didn't work, the founders decided to open up the platform for all sorts of videos." And since this was 20 years ago, "Users drove traffic to YouTube by sharing videos on MySpace." But the article includes stories of people getting rich through YouTube's sharing of ad revenue: Patrick Starrr, who produces makeup tutorial videos, said he made his first $1 million through YouTube at the age of 25. He left his job at retailer MAC Cosmetics in Florida and moved to L.A... [Video creator Dhar Mann] started posting videos on YouTube in 2018 with no film background. Mann previously had a business that sold supplies to grow weed. Today, his company, Burbank-based Dhar Mann Studios, operates on 125,000 square feet of production space, employs roughly 200 people and works with 2,000 actors a year on family friendly programs that touch on how students and families deal with topics such as bullying, narcolepsy, chronic inflammatory bowel disease and hoarding. Mann made $45 million last year, according to Forbes estimates. The majority of his company's revenue comes through YouTube. He tells the Times "I don't think it's just the future of TV — it is TV, and the world is catching on." And then there's this... "My mom would always give me so much crap about it — she would say, 'Why do you want to do YouTube?'" said Chucky Appleby, now an executive at MrBeast. His reply: "Mom, you can make a living from this." MrBeast's holding company, Beast Industries, which employs more than 400 people, made $473 million in revenue last year, according to Business Insider. In the last 28 days, MrBeast content — which includes challenges and stunt videos — received 3.6 billion views on YouTube, Appleby said. Appleby, 28, said he's since bought a Jeep for his mom.

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ZDNet's reviewer says "I tested this affordable E Ink phone for two weeks, and it rewired my brain (for the better)." It's Mudita's new Kompakt smartphone with a two-color E Ink display — which ZDNet calls "an affordable choice" for those "considering investing in a so-called 'dumbphone'..." Compared to modern smartphones, the Mudita Kompakt is a bit chunky at half an inch thick and five inches long. It's still rather light, though, weighing just 164 grams and covered in soft touch material, so it feels good in the hand. The bezels around the 4.3-inch display are rather large, with three touch-sensitive buttons for back, home, and quick settings, so navigating to key elements is intuitive, whether you're coming from Android or iOS. The phone features a fingerprint sensor to lock and unlock, and it's housed on the power button in the middle of the right side. I'm a huge fan of consolidating these two purposes to the same button, and it works flawlessly.... You can charge via the USB-C, but surprisingly, it also supports wireless charging. All in all, the battery is quite good. Mudita says it can last for up to six days on standby, with around two days of standard use. In my testing, I found this to be about accurate. On the left side of the device is a button that houses one of its key features: offline mode. Switching to this mode disables all wireless connectivity and support for the camera, so it truly becomes distraction-free.. [T]here is undoubtedly some lag in certain apps — such as the camera — due to the E Ink display technology and processor/RAM specifications. You will also likely notice some lag in text messaging if you tap quickly on the keyboard, often resulting in getting ahead of the spell-checking feature. As far as apps go, in addition to phone calls and text messages, the Kompakt includes an alarm, calculator, chess game, maps, meditation, weather, and a voice recorder. Phone calls "sounded great on both ends," according to the review. (And text messaging "works well if you don't tap too quickly on the keyboard.") But the 8MP camera produced photos "that look like they were taken over ten years ago." (And accessing the internal storage "requires connecting to a Windows PC and launching File Explorer," although "you can also just share photos via text messaging, as it's much faster than using a computer.") But ZDNet calls it an "attractive — if very simplified — E Ink display." Mudita is asking $369 now for preorder customers, according to the article, while the phone will be available in May for $439.

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"Only the United States, China and Germany have larger economies than California," reports CNN. In fact, they add that California "outpaced all three countries with growth of 6% last year," according to the California governor's office (which cites new data from the International Monetary Fund and the U.S. Bureau of Economic Analysis): In 2024, California's growth rate of 6% outpaced the top three economies: U.S. (5.3%), China (2.6%) and Germany (2.9%)... With an increasing state population and recent record-high tourism spending, California is the nation's top state for new business starts, access to venture capital funding, and manufacturing, high-tech, and agriculture. The state drives national economic growth and also sends over $83 billion more to the federal government than it receives in federal funding. California is the leading agricultural producer in the country and is also the center for manufacturing output in the United States, with over 36,000 manufacturing firms employing over 1.1 million Californians. The data shows that last year California accounted for 14% of America's GDP, CNN points out, "driven by Silicon Valley and its real estate and finance sectors."

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An anonymous reader shared this report from the Washington Post: The acting U.S. attorney for the District of Columbia sent a letter to the nonprofit that runs Wikipedia, accusing the tax-exempt organization of "allowing foreign actors to manipulate information and spread propaganda to the American public." In the letter dated April 24, Ed Martin said he sought to determine whether the Wikimedia Foundation's behavior is in violation of its Section 501(c)(3) status. Martin asked the foundation to provide detailed information about its editorial process, its trust and safety measures, and how it protects its information from foreign actors. "Wikipedia is permitting information manipulation on its platform, including the rewriting of key, historical events and biographical information of current and previous American leaders, as well as other matters implicating the national security and the interests of the United States," Martin wrote. "Masking propaganda that influences public opinion under the guise of providing informational material is antithetical to Wikimedia's 'educational' mission." Google prioritizes Wikipedia articles, the letter points out, which "will only amplify propaganda" if the content contained in Wikipedia articles "is biased, unreliable, or sourced by entities who wish to do harm to the United States." And as a U.S.-based non-profit, Wikipedia enjoys tax-exempt status while its board "is composed primarily of foreign nationals," the letter argues, "subverting the interests of American taxpayers." While noting Martin's concerns about "allowing foreign actors to manipulate information and spread propaganda," the Washington Post also notes that before being named U.S. attorney, "Martin appeared on Russia-backed media networks more than 150 times, The Washington Post reported last week...." Additional articles about the letter here and here.

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One eight-person publisher says it'll be forced to pay $1.5M

WORLD WAR FEE The Trump administration's tariffs are famously raising the prices of high-ticket products with lots of chips, like iPhones and cars, but they're also hurting small businesses like game makers. In this case, we're not talking video games, but the old-fashioned kind you play at your kitchen table.…

A New York Times technology columnist has a question. "Is there any threshold at which an A.I. would start to deserve, if not human-level rights, at least the same moral consideration we give to animals?" [W]hen I heard that researchers at Anthropic, the AI company that made the Claude chatbot, were starting to study "model welfare" — the idea that AI models might soon become conscious and deserve some kind of moral status — the humanist in me thought: Who cares about the chatbots? Aren't we supposed to be worried about AI mistreating us, not us mistreating it...? But I was intrigued... There is a small body of academic research on A.I. model welfare, and a modest but growing number of experts in fields like philosophy and neuroscience are taking the prospect of A.I. consciousness more seriously, as A.I. systems grow more intelligent.... Tech companies are starting to talk about it more, too. Google recently posted a job listing for a "post-AGI" research scientist whose areas of focus will include "machine consciousness." And last year, Anthropic hired its first AI welfare researcher, Kyle Fish... [who] believes that in the next few years, as AI models develop more humanlike abilities, AI companies will need to take the possibility of consciousness more seriously.... Fish isn't the only person at Anthropic thinking about AI welfare. There's an active channel on the company's Slack messaging system called #model-welfare, where employees check in on Claude's well-being and share examples of AI systems acting in humanlike ways. Jared Kaplan, Anthropic's chief science officer, said in a separate interview that he thought it was "pretty reasonable" to study AI welfare, given how intelligent the models are getting. But testing AI systems for consciousness is hard, Kaplan warned, because they're such good mimics. If you prompt Claude or ChatGPT to talk about its feelings, it might give you a compelling response. That doesn't mean the chatbot actually has feelings — only that it knows how to talk about them... [Fish] said there were things that AI companies could do to take their models' welfare into account, in case they do become conscious someday. One question Anthropic is exploring, he said, is whether future AI models should be given the ability to stop chatting with an annoying or abusive user if they find the user's requests too distressing.

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It's a pickup truck "that can change into whatever you need it to be — even an SUV," according to the manufacturer's web site. Selling in America for just $20,000 (after federal incentives), the new electric truck is "affordable, deeply customizable, and very analog," says TechCrunch. "It has manual windows and it doesn't come with a main infotainment screen. Heck, it isn't even painted..." Slate Auto is instead playing up the idea of wrapping its vehicles, something executives said they will sell in kits. Buyers can either have Slate do that work for them, or put the wraps on themselves. This not only adds to the idea of a buyer being able to personalize their vehicle, but it also cuts out a huge cost center for the company. It means Slate won't need a paint shop at its factory, allowing it to spend less to get to market, while also avoiding one of the most heavily regulated parts of vehicle manufacturing. Slate is telling customers that they can name the car whatever they want, offering the ability to purchase an embossed wrap for the tailgate. Otherwise, the truck is just referred to as the "Blank Slate...." It's billing the add-ons as "easy DIY" that "non-gearheads" can tackle, and says it will launch a suite of how-to resources under the billing of Slate University... The early library of customizations on Slate's website range from functional to cosmetic. Buyers can add infotainment screens, speakers, roof racks, light covers, and much more.... All that said, Slate's truck comes standard with some federally mandated safety features such as automatic emergency braking, airbags, and a backup camera. "The specs show a maximum range of 150 miles on a single charge, with the option for a longer-range battery pack that could offer up to 240 miles," reports NBC News (adding that the vehicles "aren't expected to be delivered to customers until late 2026, but can be reserved for a refundable $50 fee.") Earlier this month, TechCrunch broke the news that Bezos, along with the controlling owner of the Los Angeles Dodgers, Mark Walter; and a third investor, Thomas Tull, had helped Slate raise $111 million for the project. A document filed with the Securities and Exchange Commission listed Melinda Lewison, the head of Bezos' family office, as a Slate Auto director. Thanks to Slashdot reader fjo3 for sharing the news.

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"A group of researchers says it has identified a hidden reason we use Google for nearly all web searches," reports the Washington Post. "We've never given other options a real shot." Their research experiment suggests that Google is overwhelmingly popular partly because we believe it's the best, whether that's true or not. It's like a preference for your favorite soda. And their research suggested that our mass devotion to googling can be altered with habit-changing techniques, including by bribing people to try search alternatives to see what they are like... [A] group of academics — from Stanford University, the University of Pennsylvania and MIT — designed a novel experiment to try to figure out what might shake up Google's popularity. They recruited nearly 2,500 participants and remotely monitored their web searches on computers for months. The core of the experiment was paying some participants — most received $10 — to use Bing rather than Google for two weeks. After that period, the money stopped, and the participants had to pick either Bing or Google. The vast majority in the group of people who were paid to use Bing for 14 days chose to go back to Google once the payments stopped, suggesting a strong preference for Google even after trying an alternative. But a healthy number in that group — about 22 percent — chose Bing and were still using it many weeks later. "I realized Bing was not as bad as I thought it was...." one study participant said — which an assistant professor in business economics and public policy at the University of Pennsylvania says is a nice summation of the study's findings. "The researchers did not test other search engines," the article notes. But it also points out that more importantly: the research caught the attention of some government officials: Colorado Attorney General Phil Weiser (D), who is leading the group of states that sued Google alongside the Justice Department, said the research helped inspire a demand by the states to fix Google's search monopoly. They asked a judge to require Google to bankroll a consumer information campaign about web search alternatives, including "short-term incentive payments." On the basis of that, the article suggests "you could soon be paid to try Microsoft Bing or another alternative." And in the meantime, the reporter writes, "I encourage you to join me in a two-week (unpaid) experiment mirroring the research: Change your standard search engine to something other than Google and see whether you like it. (And drop me a line to let me know how it went.) I'm going with DuckDuckGo, a privacy-focused web search engine that uses Bing's technology."

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An anonymous reader quotes a report from IEEE Spectrum: The XPrize Foundation today announced the winners of its four-year, $100 million XPrize competition in carbon removal. The contest is one of dozens hosted by the foundation in its 20-year effort to encourage technological development. Contestants in the carbon removal XPrize had to demonstrate ways to pull carbon dioxide from the atmosphere or oceans and sequester it sustainably. Mati Carbon, a Houston-based startup developing a sequestration technique called enhanced rock weathering, won the grand prize of $50 million. The company spreads crushed basalt on small farms in India and Africa. The silica-rich volcanic rock improves the quality of the soil for the crops but also helps remove carbon dioxide from the air. It does this by reacting with dissolved CO2 in the soil's water, turning it into bicarbonate ions and preventing it from returning to the atmosphere. More than a dozen organizations globally are developing enhanced rock weathering approaches at an industrial scale, but Mati's tech-heavy verification and software platform caught the XPrize judges' attention. "On the one hand, they're moving rocks around in trucks—that's not very techy. But when we looked under the hood... what we saw was a very impressive data-collection exercise," says Michael Leitch, XPrize's technical lead for the competition. Here's a list of the runners-up: - Paris-based NetZero won $15 million for turning agricultural waste into biochar through pyrolysis, a method that locks carbon into a stable, solid form. - Houston-based Vaulted Deep won $8 million for geologically sequestering carbon-rich organic waste by injecting it deep underground. - London-based Undo Carbon won $5 million for its enhanced rock weathering approach, spreading silicate minerals to speed up natural carbon removal. Additionally, Project Hajar and Planetary Technologies each received $1 million honorary XFactor prizes, recognizing their promising work in direct air capture and ocean carbon removal, despite not meeting the competition's 1,000-tonne removal threshold.

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Reg hack pines for simpler times, then tries to recapture them

Sometimes, the size and complexity of modern OSes – even the FOSS ones – is enough to make us miss the days when an entire bootable OS could fit in three files, when configuring a PC for production meant editing two plain-text files, which contained maybe a dozen lines each. DOS couldn't do very much, but the little it did was enough. From the early 1980s for a decade or two, much of the world ran on DOS. Then Windows 3 came along, which is arguably the point where the rot set in.…

Moscow likely to respawn elsewhere

The British government is banning the export of video game controllers to Russia, claiming these can be repurposed for piloting drones on the frontline in Ukraine.…

Initial claims that life-associated gases were detected on exoplanet K2-18b are being challenged, with independent reanalysis by Jake Taylor suggesting the data is too noisy to support such conclusions and that stronger, model-independent evidence is needed. NPR reports: Rather than seeing a bump or a wiggle that indicated a signal, "the data is consistent with a flat line," says Taylor, adding that more observations from the telescope are needed to know what can be reliably said about this planet's atmosphere. "If we want to claim biosignatures, we need to be extremely sure." What this new work shows is that "the strength of the evidence depends on the nitty gritty details of how we interpret the data, and that doesn't pass the bar for me for a convincing detection," says Laura Kreidberg, an expert on the atmospheres of distant planets at the Max Planck Institute for Astronomy in Germany who didn't work on the original research team or this new analysis. She explains that astronomers can make a lot of different choices when analyzing data; for example, they can make different assumptions about the physics and chemistry at play. "Ideally, for a robust detection, we want it to be model-independent," she says -- that is, they want the signal to show up even if the underlying assumptions change from one analysis to another. But that wasn't the case here.

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