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Reçu aujourd’hui — 15 juin 2025

Space is the Perfect Place to Study Cancer and Someday Even Treat It

15 juin 2025 à 07:34
Space may be the perfect place to study cancer — and someday even treat it," writes Space.com: On Earth, gravity slows the development of cancer because cells normally need to be attached to a surface in order to function and grow. But in space, cancer cell clusters can expand in all directions as bubbles, like budding yeast or grapes, said Shay Soker, chief science program officer at Wake Forest's Institute for Regenerative Medicine. Since bubbles grow larger and more quickly in space, researchers can more easily test substances clinging to the edge of the larger bubbles, too. Scientists at the University of Notre Dame are taking advantage of this quirk to develop an in-space cancer test that needs just a single drop of blood. The work builds on a series of bubble-formation experiments that have already been conducted on the ISS. "If cancer screening using our bubble technology in space is democratized and made inexpensive, many more cancers can be screened, and everyone can benefit," said Tengfei Luo, a Notre Dame researcher who pioneered the technology, speaking to the ISS' magazine, Upward. "It's something we may be able to integrate into annual exams. It sounds far-fetched, but it's achievable...." Chemotherapy patients could save precious time, too. In normal gravity, they typically have to spend a half-hour hooked up to a needle before the medicine begins to take effect, because most drugs don't dissolve easily in water. But scientists at Merck have discovered that, in space, their widely used cancer drug pembrolizumab, or Keytruda, can be administered through a simple injection, because large crystalline molecules that would normally clump together are suspended in microgravity... Someday, microgravity could even help patients recovering from surgery heal faster than they would on Earth, Soker added. "Wound healing in high pressure is faster. That's the hyperbaric treatment for wounds...." For the Wake Forest experiment, which is scheduled to launch next spring, scientists will cut out two sections of a cancer tumor from around 20 patients. One sample will stay on Earth while the other heads to the ISS, with scientists observing the difference. The testing will be completed within a week, to avoid any interference from cosmic radiation. If successful, Soker said, it could set the stage for diagnostic cancer tests in space available to the general population — perhaps on a biomedical space station that could launch after the planned demise of the ISS. "Can we actually design a special cancer space station that will be dedicated to cancer and maybe other diseases?" Shoker asked, answering his question in the affirmative. "Pharmaceutical companies that have deep pockets would certainly support that program."

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Executives from Meta, OpenAI, and Palantir Commissioned Into The US Army Reserve

15 juin 2025 à 03:49
Meta's CTO, Palantir's CTO, and OpenAI's chief product officer are being appointed as lieutenant colonels in America's Army Reserve, reports The Register. (Along with OpenAI's former chief revenue officer). They've all signed up for Detachment 201: Executive Innovation Corps, "an effort to recruit senior tech executives to serve part-time in the Army Reserve as senior advisors," according to the official statement. "In this role they will work on targeted projects to help guide rapid and scalable tech solutions to complex problems..." "Our primary role will be to serve as technical experts advising the Army's modernization efforts," [Meta CTO Andrew Bosworth] said on X... As for Open AI's involvement, the company has been building its ties with the military-technology complex for some years now. Like Meta, OpenAI is working with Anduril on military ideas and last year scandalized some by watering down its past commitment to developing non-military products only. The Army wasn't answering questions on Friday but an article referenced by [OpenAI Chief Product Officer Kevin] Weil indicated that the four will have to serve a minimum of 120 hours a year, can work remotely, and won't have to pass basic training... "America wins when we unite the dynamism of American innovation with the military's vital missions," [Palantir CTO Shyam] Sankar said on X. "This was the key to our triumphs in the 20th century. It can help us win again. I'm humbled by this new opportunity to serve my country, my home, America."

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Python Creator Guido van Rossum Asks: Is 'Worse is Better' Still True for Programming Languages?

15 juin 2025 à 01:49
In 1989 a computer scientist argued that more functionality in software actually lowers usability and practicality — leading to the counterintuitive proposition that "worse is better". But is that still true? Python's original creator Guido van Rossum addressed the question last month in a lightning talk at the annual Python Language Summit 2025. Guido started by recounting earlier periods of Python development from 35 years ago, where he used UNIX "almost exclusively" and thus "Python was greatly influenced by UNIX's 'worse is better' philosophy"... "The fact that [Python] wasn't perfect encouraged many people to start contributing. All of the code was straightforward, there were no thoughts of optimization... These early contributors also now had a stake in the language; [Python] was also their baby"... Guido contrasted early development to how Python is developed now: "features that take years to produce from teams of software developers paid by big tech companies. The static type system requires an academic-level understanding of esoteric type system features." And this isn't just Python the language, "third-party projects like numpy are maintained by folks who are paid full-time to do so.... Now we have a huge community, but very few people, relatively speaking, are contributing meaningfully." Guido asked whether the expectation for Python contributors going forward would be that "you had to write a perfect PEP or create a perfect prototype that can be turned into production-ready code?" Guido pined for the "old days" where feature development could skip performance or feature-completion to get something into the hands of the community to "start kicking the tires". "Do we have to abandon 'worse is better' as a philosophy and try to make everything as perfect as possible?" Guido thought doing so "would be a shame", but that he "wasn't sure how to change it", acknowledging that core developers wouldn't want to create features and then break users with future releases. Guido referenced David Hewitt's PyO3 talk about Rust and Python, and that development "was using worse is better," where there is a core feature set that works, and plenty of work to be done and open questions. "That sounds a lot more fun than working on core CPython", Guido paused, "...not that I'd ever personally learn Rust. Maybe I should give it a try after," which garnered laughter from core developers. "Maybe we should do more of that: allowing contributors in the community to have a stake and care".

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'Ghost' Students are Enrolling in US Colleges Just to Steal Financial Aid

14 juin 2025 à 23:49
Last week America's financial aid program announced that "the rate of fraud through stolen identities has reached a level that imperils the federal student aid programs." Or, as the Associated Press suggests: Online classes + AI = financial aid fraud. "In some cases, professors discover almost no one in their class is real..." Fake college enrollments have been surging as crime rings deploy "ghost students" — chatbots that join online classrooms and stay just long enough to collect a financial aid check... Students get locked out of the classes they need to graduate as bots push courses over their enrollment limits. And victims of identity theft who discover loans fraudulently taken out in their names must go through months of calling colleges, the Federal Student Aid office and loan servicers to try to get the debt erased. [Last week], the U.S. Education Department introduced a temporary rule requiring students to show colleges a government-issued ID to prove their identity... "The rate of fraud through stolen identities has reached a level that imperils the federal student aid program," the department said in its guidance to colleges. An Associated Press analysis of fraud reports obtained through a public records request shows California colleges in 2024 reported 1.2 million fraudulent applications, which resulted in 223,000 suspected fake enrollments. Other states are affected by the same problem, but with 116 community colleges, California is a particularly large target. Criminals stole at least $11.1 million in federal, state and local financial aid from California community colleges last year that could not be recovered, according to the reports... Scammers frequently use AI chatbots to carry out the fraud, targeting courses that are online and allow students to watch lectures and complete coursework on their own time... Criminal cases around the country offer a glimpse of the schemes' pervasiveness. In the past year, investigators indicted a man accused of leading a Texas fraud ring that used stolen identities to pursue $1.5 million in student aid. Another person in Texas pleaded guilty to using the names of prison inmates to apply for over $650,000 in student aid at colleges across the South and Southwest. And a person in New York recently pleaded guilty to a $450,000 student aid scam that lasted a decade. Fortune found one community college that "wound up dropping more than 10,000 enrollments representing thousands of students who were not really students," according to the school's president. The scope of the ghost-student plague is staggering. Jordan Burris, vice president at identity-verification firm Socure and former chief of staff in the White House's Office of the Federal Chief Information Officer, told Fortune more than half the students registering for classes at some schools have been found to be illegitimate. Among Socure's client base, between 20% to 60% of student applicants are ghosts... At one college, more than 400 different financial-aid applications could be tracked back to a handful of recycled phone numbers. "It was a digital poltergeist effectively haunting the school's enrollment system," said Burris. The scheme has also proved incredibly lucrative. According to a Department of Education advisory, about $90 million in aid was doled out to ineligible students, the DOE analysis revealed, and some $30 million was traced to dead people whose identities were used to enroll in classes. The issue has become so dire that the DOE announced this month it had found nearly 150,000 suspect identities in federal student-aid forms and is now requiring higher-ed institutions to validate the identities of first-time applicants for Free Application for Federal Student Aid (FAFSA) forms... Maurice Simpkins, president and cofounder of AMSimpkins, says he has identified international fraud rings operating out of Japan, Vietnam, Bangladesh, Pakistan, and Nairobi that have repeatedly targeted U.S. colleges... In the past 18 months, schools blocked thousands of bot applicants because they originated from the same mailing address; had hundreds of similar emails with a single-digit difference, or had phone numbers and email addresses that were created moments before applying for registration. Fortune shares this story from the higher education VP at IT consulting firm Voyatek. "One of the professors was so excited their class was full, never before being 100% occupied, and thought they might need to open a second section. When we worked with them as the first week of class was ongoing, we found out they were not real people."

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Reçu hier — 14 juin 2025

Do Biofuels Increase Greenhouse Gas Emissions?

14 juin 2025 à 22:49
Will an expansion of biofuels increase greenhouse gas emissions, despite their purported climate benefits? That's the claim of a new report from the World Resources Institute, which has been critical of US biofuel policy in the past. Ars Technica has republished an article from the nonprofit, non-partisan news organization Inside Climate News, which investigates the claim. Drawing from 100 academic studies on biofuel impacts, the Institute's new report "concludes that [U.S.] ethanol policy has been largely a failure and ought to be reconsidered, especially as the world needs more land to produce food to meet growing demand." "Multiple studies show that U.S. biofuel policies have reshaped crop production, displacing food crops and driving up emissions from land conversion, tillage, and fertilizer use," said the report's lead author, Haley Leslie-Bole. "Corn-based ethanol, in particular, has contributed to nutrient runoff, degraded water quality and harmed wildlife habitat. As climate pressures grow, increasing irrigation and refining for first-gen biofuels could deepen water scarcity in already drought-prone parts of the Midwest...." It may, in fact, produce more greenhouse gases than the fossil fuels it was intended to replace. Recent research says that biofuel refiners also emit significant amounts of carcinogenic and dangerous substances, including hexane and formaldehyde, in greater amounts than petroleum refineries. The new report points to research saying that increased production of biofuels from corn and soy could actually raise greenhouse gas emissions, largely from carbon emissions linked to clearing land in other countries to compensate for the use of land in the Midwest. On top of that, corn is an especially fertilizer-hungry crop requiring large amounts of nitrogen-based fertilizer, which releases huge amounts of nitrous oxide when it interacts with the soil. American farming is, by far, the largest source of domestic nitrous oxide emissions already — about 50 percent. If biofuel policies lead to expanded production, emissions of this enormously powerful greenhouse gas will likely increase, too.

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Increased Traffic from Web-Scraping AI Bots is Hard to Monetize

14 juin 2025 à 20:49
"People are replacing Google search with artificial intelligence tools like ChatGPT," reports the Washington Post. But that's just the first change, according to a New York-based start-up devoted to watching for content-scraping AI companies with a free analytics product and "ensuring that these intelligent agents pay for the content they consume." Their data from 266 web sites (half run by national or local news organizations) found that "traffic from retrieval bots grew 49% in the first quarter of 2025 from the fourth quarter of 2024," the Post reports. A spokesperson for OpenAI said that referral traffic to publishers from ChatGPT searches may be lower in quantity but that it reflects a stronger user intent compared with casual web browsing. To capitalize on this shift, websites will need to reorient themselves to AI visitors rather than human ones [said TollBit CEO/co-founder Toshit Panigrahi]. But he also acknowledged that squeezing payment for content when AI companies argue that scraping online data is fair use will be an uphill climb, especially as leading players make their newest AI visitors even harder to identify.... In the past eight months, as chatbots have evolved to incorporate features like web search and "reasoning" to answer more complex queries, traffic for retrieval bots has skyrocketed. It grew 2.5 times as fast as traffic for bots that scrape data for training between the fourth quarter of 2024 and the first quarter of 2025, according to TollBit's report. Panigrahi said TollBit's data may underestimate the magnitude of this change because it doesn't reflect bots that AI companies send out on behalf of AI "agents" that can complete tasks on a user's behalf, like ordering takeout from DoorDash. The start-up's findings also add a dimension to mounting evidence that the modern internet — optimized for Google search results and social media algorithms — will have to be restructured as the popularity of AI answers grows. "To think of it as, 'Well, I'm optimizing my search for humans' is missing out on a big opportunity," he said. Installing TollBit's analytics platform is free for news publishers, and the company has more than 2,000 clients, many of which are struggling with these seismic changes, according to data in the report. Although news publishers and other websites can implement blockers to prevent various AI bots from scraping their content, TollBit found that more than 26 million AI scrapes bypassed those blockers in March alone. Some AI companies claim bots for AI agents don't need to follow bot instructions because they are acting on behalf of a user. The Post also got this comment from the chief operating officer for the media company Time, which successfully negotiated content licensing deals with OpenAI and Perplexity. "The vast majority of the AI bots out there absolutely are not sourcing the content through any kind of paid mechanism... There is a very, very long way to go."

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Rocky and Alma Linux Still Going Strong. RHEL Adds an AI Assistant

14 juin 2025 à 19:49
Rocky Linux 10 "Red Quartz" has reached general availability, notes a new article in The Register — surveying the differences between "RHELatives" — the major alternatives to Red Hat Enterprise Linux: The Rocky 10 release notes describe what's new, such as support for RISC-V computers. Balancing that, this version only supports the Raspberry Pi 4 and 5 series; it drops Rocky 9.x's support for the older Pi 3 and Pi Zero models... RHEL 10 itself, and Rocky with it, now require x86-64-v3, meaning Intel "Haswell" generation kit from about 2013 onward. Uniquely among the RHELatives, AlmaLinux offers a separate build of version 10 for x86-64-v2 as well, meaning Intel "Nehalem" and later — chips from roughly 2008 onward. AlmaLinux has a history of still supporting hardware that's been dropped from RHEL and Rocky, which it's been doing since AlmaLinux 9.4. Now that includes CPUs. In comparison, the system requirements for Rocky Linux 10 are the same as for RHEL 10. The release notes say.... "The most significant change in Rocky Linux 10 is the removal of support for x86-64-v2 architectures. AMD and Intel 64-bit architectures for x86-64-v3 are now required." A significant element of the advertising around RHEL 10 involves how it has an AI assistant. This is called Red Hat Enterprise Linux Lightspeed, and you can use it right from a shell prompt, as the documentation describes... It's much easier than searching man pages, especially if you don't know what to look for... [N]either AlmaLinux 10 nor Rocky Linux 10 includes the option of a helper bot. No big surprise there... [Rocky Linux] is sticking closest to upstream, thanks to a clever loophole to obtain source RPMs. Its hardware requirements also closely parallel RHEL 10, and CIQ is working on certifications, compliance, and special editions. Meanwhile, AlmaLinux is maintaining support for older hardware and CPUs, which will widen its appeal, and working with partners to ensure reboot-free updates and patching, rather than CIQ's keep-it-in-house approach. All are valid, and all three still look and work almost identically... except for the LLM bot assistant.

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Arc Browser's Maker Releases First Beta of Its New AI-Powered Browser 'Dia'

14 juin 2025 à 18:34
Recently the Browser Company (the startup behind the Arc web browser) switched over to building a new AI-powered browser — and its beta has just been released, reports TechCrunch, "though you'll need an invite to try it out." The Chromium-based browser has a URL/search bar that also "acts as the interface for its in-built AI chatbot" which can "search the web for you, summarize files that you upload, and automatically switch between chat and search functions." The Browser Company's CEO Josh Miller has of late acknowledged how people have been using AI tools for all sorts of tasks, and Dia is a reflection of that. By giving users an AI interface within the browser itself, where a majority of work is done these days, the company is hoping to slide into the user flow and give people an easy way to use AI, cutting out the need to visit the sites for tools like ChatGPT, Perplexity, and Claude... Users can also ask questions about all the tabs they have open, and the bot can even write up a draft based on the contents of those tabs. To set your preferences, all you have to do is talk to the chatbot to customize its tone of voice, style of writing, and settings for coding. Via an opt-in feature called History, you can allow the browser to use seven days of your browsing history as context to answer queries. The Browser Company will give all existing Arc members access to the beta immediately, according to the article, "and existing Dia users will be able to send invites to other users." The article points out that Google is also adding AI-powered features to Chrome...

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World's First 2D, Atom-Thin Non-Silicon Computer Developed

14 juin 2025 à 17:34
In a world first, a research team used 2D materials — only an atom thick — to develop a computer. The team (led by researchers at Pennsylvania State University) says it's a major step toward thinner, faster and more energy-efficient electronics. From the University's announcement: They created a complementary metal-oxide semiconductor (CMOS) computer — technology at the heart of nearly every modern electronic device — without relying on silicon. Instead, they used two different 2D materials to develop both types of transistors needed to control the electric current flow in CMOS computers: molybdenum disulfide for n-type transistors and tungsten diselenide for p-type transistors... "[A]s silicon devices shrink, their performance begins to degrade," [said lead researcher/engineering professor Saptarshi Das]. "Two-dimensional materials, by contrast, maintain their exceptional electronic properties at atomic thickness, offering a promising path forward...." The team used metal-organic chemical vapor deposition (MOCVD) — a fabrication process that involves vaporizing ingredients, forcing a chemical reaction and depositing the products onto a substrate — to grow large sheets of molybdenum disulfide and tungsten diselenide and fabricate over 1,000 of each type of transistor. By carefully tuning the device fabrication and post-processing steps, they were able to adjust the threshold voltages of both n- and p-type transistors, enabling the construction of fully functional CMOS logic circuits. "Our 2D CMOS computer operates at low-supply voltages with minimal power consumption and can perform simple logic operations at frequencies up to 25 kilohertz," said first author Subir Ghosh, a doctoral student pursuing a degree in engineering science and mechanics under Das's mentorship. Ghosh noted that the operating frequency is low compared to conventional silicon CMOS circuits, but their computer — known as a one instruction set computer — can still perform simple logic operations.

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ChatGPT Just Got 'Absolutely Wrecked' at Chess, Losing to a 1970s-Era Atari 2600

14 juin 2025 à 16:34
An anonymous reader shared this report from CNET: By using a software emulator to run Atari's 1979 game Video Chess, Citrix engineer Robert Caruso said he was able to set up a match between ChatGPT and the 46-year-old game. The matchup did not go well for ChatGPT. "ChatGPT confused rooks for bishops, missed pawn forks and repeatedly lost track of where pieces were — first blaming the Atari icons as too abstract, then faring no better even after switching to standard chess notations," Caruso wrote in a LinkedIn post. "It made enough blunders to get laughed out of a 3rd-grade chess club," Caruso said. "ChatGPT got absolutely wrecked at the beginner level." "Caruso wrote that the 90-minute match continued badly and that the AI chatbot repeatedly requested that the match start over..." CNET reports. "A representative for OpenAI did not immediately return a request for comment."

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Stolen iPhones from an Apple Store Remotely Disabled, Started Blaring Alarms

14 juin 2025 à 15:34
Earlier this week looters who stole iPhones "got an unexpected message from Apple," reports the Economic Times. "Please return to Apple Tower Theatre. This device has been disabled and is being tracked. Local authorities will be alerted." Stolen phones "were remotely locked and triggered alarms, effectively turning the devices into high-tech bait. Videos circulating online show the phones flashing the message while blaring loudly, making them impossible to ignore." According to LAPD Officer Chris Miller, at least three suspects were apprehended in connection to the Apple Store burglary. One woman was arrested on the spot, while two others were detained for looting.

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Anthropic's CEO is Wrong, AI Won't Eliminate Half of White-Collar Jobs, Says NVIDIA's CEO

14 juin 2025 à 14:34
Last week Anthropic CEO Dario Amodei said AI could eliminate half the entry-level white-collar jobs within five years. CNN called the remarks "part of the AI hype machine." Asked about the prediction this week at a Paris tech conference, NVIDIA CEO Jensen Huang acknowledged AI may impact some employees, but "dismissed" Amodei's claim, according to Fortune. "Everybody's jobs will be changed. Some jobs will be obsolete, but many jobs are going to be created ... Whenever companies are more productive, they hire more people." And he also said he "pretty much" disagreed "with almost everything" Anthropic's CEO says. "One, he believes that AI is so scary that only they should do it," Huang said of Amodei at a press briefing at Viva Technology in Paris. "Two, [he believes] that AI is so expensive, nobody else should do it ... And three, AI is so incredibly powerful that everyone will lose their jobs, which explains why they should be the only company building it. I think AI is a very important technology; we should build it and advance it safely and responsibly," Huang continued. "If you want things to be done safely and responsibly, you do it in the open ... Don't do it in a dark room and tell me it's safe." An Anthropic spokesperson told Fortune in a statement: "Dario has never claimed that 'only Anthropic' can build safe and powerful AI. As the public record will show, Dario has advocated for a national transparency standard for AI developers (including Anthropic) so the public and policymakers are aware of the models' capabilities and risks and can prepare accordingly. NVIDIA's CEO also touted their hybrid quantum-classical platformCUDA-Q and claimed quantum computing is hitting an "inflection point" and within a few years could start solving real-world problems

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Reçu avant avant-hier

Air India Boeing 787 Carrying 242 Passengers Crashes After Takeoff

12 juin 2025 à 12:45
Flying to London, a Boeing 787 aircraft operated by Air India "crashed shortly after taking off..." reports Bloomberg, "in what stands to be the worst accident involving the U.S. planemaker's most advanced widebody airliner." Flight AI171 was carrying 242 passengers and crew. Video footage shared on social media showed a giant plume of smoke engulfing the crash site, with no reports of survivors. [UPDATE: Reuters reports one passenger jumped out of the emergency exit and survived, with a senior police officer saying "chances are that there might be more survivors among the injured who are being treated in the hospital."] The aircraft entered a slow descent shortly after taking off, with its landing gear still extended before exploding into a huge fireball upon impact. The crash took place in a residential area, which could mean a higher death toll... The pilots in command issued a mayday call immediately after take-off to air traffic controllers, according to India's civil aviation regulator.

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The Medical Revolutions That Prevented Millions of Cancer Deaths

9 juin 2025 à 11:34
Vox publishes a story about "the quiet revolutions that have prevented millions of cancer deaths.... "The age-adjusted death rate in the US for cancer has declined by about a third since 1991, meaning people of a given age have about a third lower risk of dying from cancer than people of the same age more than three decades ago... " The dramatic bend in the curve of cancer deaths didn't happen by accident — it's the compound interest of three revolutions. While anti-smoking policy has been the single biggest lifesaver, other interventions have helped reduce people's cancer risk. One of the biggest successes is the HPV vaccine. A study last year found that death rates of cervical cancer — which can be caused by HPV infections — in US women ages 20-39 had dropped 62 percent from 2012 to 2021, thanks largely to the spread of the vaccine. Other cancers have been linked to infections, and there is strong research indicating that vaccination can have positive effects on reducing cancer incidence. The next revolution is better and earlier screening. It's generally true that the earlier cancer is caught, the better the chances of survival... According to one study, incidences of late-stage colorectal cancer in Americans over 50 declined by a third between 2000 and 2010 in large part because rates of colonoscopies almost tripled in that same time period. And newer screening methods, often employing AI or using blood-based tests, could make preliminary screening simpler, less invasive and therefore more readily available. If 20th-century screening was about finding physical evidence of something wrong — the lump in the breast — 21st-century screening aims to find cancer before symptoms even arise. Most exciting of all are frontier developments in treating cancer... From drugs like lenalidomide and bortezomib in the 2000s, which helped double median myeloma survival, to the spread of monoclonal antibodies, real breakthroughs in treatments have meaningfully extended people's lives — not just by months, but years. Perhaps the most promising development is CAR-T therapy, a form of immunotherapy. Rather than attempting to kill the cancer directly, immunotherapies turn a patient's own T-cells into guided missiles. In a recent study of 97 patients with multiple myeloma, many of whom were facing hospice care, a third of those who received CAR-T therapy had no detectable cancer five years later. It was the kind of result that doctors rarely see. The article begins with some recent quotes from Jon Gluck, who was told after a cancer diagnosis that he had as little as 18 months left to live — 22 years ago...

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'AI Is Not Intelligent': The Atlantic Criticizes 'Scam' Underlying the AI Industry

9 juin 2025 à 07:34
The Atlantic makes that case that "the foundation of the AI industry is a scam" and that AI "is not what its developers are selling it as: a new class of thinking — and, soon, feeling — machines." [OpenAI CEO Sam] Altman brags about ChatGPT-4.5's improved "emotional intelligence," which he says makes users feel like they're "talking to a thoughtful person." Dario Amodei, the CEO of the AI company Anthropic, argued last year that the next generation of artificial intelligence will be "smarter than a Nobel Prize winner." Demis Hassabis, the CEO of Google's DeepMind, said the goal is to create "models that are able to understand the world around us." These statements betray a conceptual error: Large language models do not, cannot, and will not "understand" anything at all. They are not emotionally intelligent or smart in any meaningful or recognizably human sense of the word. LLMs are impressive probability gadgets that have been fed nearly the entire internet, and produce writing not by thinking but by making statistically informed guesses about which lexical item is likely to follow another. A sociologist and linguist even teamed up for a new book called The AI Con: How to Fight Big Tech's Hype and Create the Future We Want, the article points out: The authors observe that large language models take advantage of the brain's tendency to associate language with thinking: "We encounter text that looks just like something a person might have said and reflexively interpret it, through our usual process of imagining a mind behind the text. But there is no mind there, and we need to be conscientious to let go of that imaginary mind we have constructed." Several other AI-related social problems, also springing from human misunderstanding of the technology, are looming. The uses of AI that Silicon Valley seems most eager to promote center on replacing human relationships with digital proxies. Consider the ever-expanding universe of AI therapists and AI-therapy adherents, who declare that "ChatGPT is my therapist — it's more qualified than any human could be." Witness, too, how seamlessly Mark Zuckerberg went from selling the idea that Facebook would lead to a flourishing of human friendship to, now, selling the notion that Meta will provide you with AI friends to replace the human pals you have lost in our alienated social-media age.... The good news is that nothing about this is inevitable: According to a study released in April by the Pew Research Center, although 56 percent of "AI experts" think artificial intelligence will make the United States better, only 17 percent of American adults think so. If many Americans don't quite understand how artificial "intelligence" works, they also certainly don't trust it. This suspicion, no doubt provoked by recent examples of Silicon Valley con artistry, is something to build on.... If people understand what large language models are and are not; what they can and cannot do; what work, interactions, and parts of life they should — and should not — replace, they may be spared its worst consequences.

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Scientists Show Reforestation Helps Cool the Planet Even More Than Thought

9 juin 2025 à 04:34
"Replanting forests can help cool the planet even more than some scientists once believed, especially in the tropics," according to a recent announcement from the University of California, Riverside. In a new modeling study published in Communications Earth & Environment, researchers at the University of California, Riverside, showed that restoring forests to their preindustrial extent could lower global average temperatures by 0.34 degrees Celsius. That is roughly one-quarter of the warming the Earth has already experienced. The study is based on an increase in tree area of about 12 million square kilometers, which is 135% of the area of the United States, and similar to estimates of the global tree restoration potential of 1 trillion trees. It is believed the planet has lost nearly half of its trees (about 3 trillion) since the onset of industrialized society. The Washington Post noted that the researchers factored in how tree emissions interacted with molecules in the atmosphere, "encouraging cloud production, reflecting sunlight and cooling Earth's surface." In a news release, the researchers acknowledge that full reforestation is not feasible... "Reforestation is not a silver bullet," Bob Allen, a professor of climatology at the University of California at Riverside and the paper's lead author, said in a news release. "It's a powerful strategy, but it has to be paired with serious emissions reductions."

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Caffeine Has a Weird Effect On Your Brain While You're Asleep

9 juin 2025 à 02:23
A new study "adds a whole extra level of detail to our understanding of caffeine's impact on the brain during sleep," reports ScienceAlert: Caffeine was shown to increase brain signal complexity, and shift the brain closer to a state of 'criticality', in tests run by researchers from the University of Montreal in Canada. This criticality refers to the brain being balanced between structure and flexibility, thought to be the most efficient state for processing information, learning, and making decisions. However, this state might prevent restful sleep, the researchers suggest. The caffeine isn't just keeping us alert, but actually changing how the brain is operating. What's more, they found younger adults aged 20 to 27 were more greatly affected in this way... When it comes to the different reactions across different ages, the researchers suggest that changes in the brain as we age might be responsible. Adenosine molecules gradually build up in the brain during the day, leading to a greater feeling of fatigue as bedtime approaches. Caffeine works by blocking the receptors that adenosine interacts with, giving us a temporary jolt of energy. Adenosine receptors are more abundant in younger brains, which may explain why younger people seem to be more sensitive to caffeine's powers. That includes both the positive energizing effects, and the negative effects of keeping the brain too active overnight.

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UK Renewable Energy Firms are Being Paid Huge Sums to Not Provide Power

9 juin 2025 à 01:23
The U.K. electricity grid "was built to deliver power generated by coal and gas plants near the country's major cities and towns," reports the BBC, "and doesn't always have sufficient capacity in the wires that carry electricity around the country to get the new renewable electricity generated way out in the wild seas and rural areas. "And this has major consequences." The way the system currently works means a company like Ocean Winds gets what are effectively compensation payments if the system can't take the power its wind turbines are generating and it has to turn down its output. It means Ocean winds was paid £72,000 [nearly $100,000 USD] not to generate power from its wind farms in the Moray Firth during a half-hour period on 3 June because the system was overloaded — one of a number of occasions output was restricted that day. At the same time, 44 miles (70km) east of London, the Grain gas-fired power station on the Thames Estuary was paid £43,000 to provide more electricity. Payments like that happen virtually every day. Seagreen, Scotland's largest wind farm, was paid £65 million last year to restrict its output 71% of the time, according to analysis by Octopus Energy. Balancing the grid in this way has already cost the country more than £500 million this year alone, the company's analysis shows. The total could reach almost £8bn a year by 2030, warns the National Electricity System Operator (NESO), the body in charge of the electricity network. It's pushing up all our energy bills and calling into question the government's promise that net zero would end up delivering cheaper electricity... the potential for renewables to deliver lower costs just isn't coming through to consumers. Renewables now generate more than half the country's electricity, but because of the limits to how much electricity can be moved around the system, even on windy days some gas generation is almost always needed to top the system up. And because gas tends to be more expensive, it sets the wholesale price. The UK government is now considering smaller regional markets, so wind companies "would have to sell that spare power to local people instead of into a national market. The theory is prices would fall dramatically — on some days Scottish customers might even get their electricity for free... "Supporters argue that it would attract energy-intensive businesses such as data centres, chemical companies and other manufacturing industries."

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Microsoft Announces Upcoming Windows-Powered Handheld Xbox Device: the 'ROG Xbox Ally'

8 juin 2025 à 22:57
Nintendo's new Switch 2 console sold a record 3 million units after its launch Thursday. But then today Microsoft announced their own upcoming handheld gaming device that's Xbox-branded (and Windows-powered). Working with ASUS' ROG division, they build a device that weighs more than the Nintendo Switch 2, and "is marginally heavier than the Steam Deck," reports Engadget. But "at least those grips look more ergonomic than those on the Nintendo Switch 2 (which is already cramping my hands) or even the Steam Deck." There are two variants of the handheld: the ROG Xbox Ally and ROG Xbox Ally X. Microsoft didn't reveal pricing, but the handhelds are coming this holiday... Critically, Microsoft and ROG aren't locking the devices to only playing Xbox games (though you can do that natively, via the cloud or by accessing an Xbox console remotely). You'll be able to play games from Battle.net and "other leading PC storefronts" too. Obviously, there's Game Pass integration here, as well as support for the Xbox Play Anywhere initiative, which enables you to play games with synced progress across a swathe of devices after buying them once... There's a dedicated physical Xbox button that can bring up a Game Bar overlay, which seemingly makes it easy to switch between apps and games, tweak settings, start chatting with friends and more... You'll be able to mod games on either system as well. The Xbox Ally is powered by the AMD Ryzen Z2 A Processor, and has 16GB of RAM and 512GB of SSD storage. The Xbox Ally X is the more powerful model. It has a AMD Ryzen AI Z2 Extreme processor, 24GB of RAM and 1TB of storage. They each have a microSD card reader, so you won't need to worry about shelling out for proprietary storage options to have extra space for your games... Both systems boast "HD haptics..." Both systems should be capable of outputting video to a TV or monitor, as they have two USB-C ports with support for DisplayPort 2.1 and Power Delivery 3.0. "Microsoft has needed to respond to SteamOS ever since the Steam Deck launched three years ago," argues The Verge, "and it has steadily been tweaking its Xbox app and the Xbox Game Bar on Windows to make both more handheld-friendly..." But there was always a bigger overhaul of Windows required, and we're starting to see parts of that today. "The reality is that we've made tremendous progress on this over the last couple of years, and this is really the device that galvanized those teams and got everybody marching and working towards a moment that we're just really excited to put into the hands of players," says Roanne Sones, corporate vice president of gaming Devices and ecosystem at Xbox, in a briefing with The Verge... I'll need to try this new interface fully to really get a feel for the Windows changes here, but Microsoft is promising that this isn't just lipstick on top of Windows. "This isn't surface-level changes, we've made significant improvements," says Potvin. "Some of our early testing with the components we've turned off in Windows, we get about 2GB of memory going back to the games while running in the full-screen experience."

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NASA Pulls the Plug on Jupiter-Moon Lander, So Scientists Propose Landing It on Saturn

8 juin 2025 à 21:57
"NASA engineers have spent the past decade developing a rugged, partially autonomous lander designed to explore Europa, one of Jupiter's most intriguing moons," reports Gizmodo. But though NASA "got cold feet over the project," the engineers behind the project are now suggesting the probe could instead explore Enceladus, the sixth-largest moon of Saturn: Europa has long been a prime target in the search for extraterrestrial biology because scientists suspect it harbors a subsurface ocean beneath its icy crust, potentially teeming with microbial life. But the robot — packed with radiation shielding, cutting-edge software, and ice-drilling appendages — won't be going anywhere anytime soon. In a recent paper in Science Robotics, engineers at NASA's Jet Propulsion Laboratory (JPL) outlined the design and testing of what was once the Europa Lander prototype, a four-legged robotic explorer built to survive the brutal surface conditions of the Jovian moon. The robot was designed to walk — as opposed to roll — analyze terrain, collect samples, and drill into Europa's icy crust — all with minimal guidance from Earth, due to the major communication lag between our planet and the moon 568 million miles (914 million kilometers) away. Designed to operate autonomously for hours at a time, the bot came equipped with stereoscopic cameras, a robotic arm, LED lights, and a suite of specialized materials tough enough to endure harsh radiation and bone-chilling cold.... According to the team, the challenges of getting to Europa — its radiation exposure, immense distance, and short observation windows — proved too daunting for NASA's higher-ups. And that's before you take into consideration the devastating budget cuts planned by the Trump administration, which would see the agency's funding fall from $7.3 billion to $3.9 billion. The lander, once the centerpiece of a bold astrobiology initiative, is now essentially mothballed. But the engineers aren't giving up. They're now lobbying for the robot to get a second shot — on Enceladus, Saturn's ice-covered moon, which also boasts a subsurface ocean and has proven more favorable for robotic exploration. Enceladus is still frigid, but `has lower radiation and better access windows than Europa.

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