Twitch will begin allowing Amazon to use streamers' content to train generative AI models by default, requiring creators to manually opt out if they don't want their videos and audio included. The decision has drawn backlash from creators, with Twitch's own product chief acknowledging that an opt-in system would likely attract almost no participants. "Why is it not opt-in? That's what everybody is spamming in chat. I get it. 'Let me opt in versus making me opt out,'" said Twitch Chief Product Officer Mike Minton. "Well, there's an honest answer... If this was opt-in, nobody would opt in. That's honestly the answer." TechCrunch reports: For Amazon, these stream recordings are incredibly valuable, offering thousands of hours of audio and video content to help train AI models. But Twitch users worry that since creators have to manually opt out, they might be surrendering their content to train Amazon's AI content models without even knowing it. This is especially concerning on a platform like Twitch, where creators are often recording livestreams of themselves and their voices for many hours per week. [...] Twitch knows that its community of streamers is largely opposed to the use of generative AI, since the most prevalent generative AI products are trained on books, images, videos, and other materials scraped from the internet without consent. Even Twitch's approach to breaking this news shows that the company is braced for backlash. Instead of telling the community that Amazon would begin training on Twitch users' content, Twitch framed this change as "[adding] a setting that lets you opt out of having your channel content used to train generative AI content models across Amazon." In some cases, this created confusion among streamers about whether their content had already been fed to Amazon without their knowledge. When one user asked if their videos had already been used for training, Minton responded, "I don't actually know the answer to that question because I don't know what Amazon [...] has done in terms of model training and what they've used and not used."

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An anonymous reader quotes a report from the Financial Times: Anthropic investors expect the AI startup to float at a valuation of $2 trillion or more in October, a dizzying figure that would eclipse SpaceX and make the AI lab's debut the largest-ever initial public offering. Half a dozen of the company's backers told the FT that Anthropic's rapidly rising revenue would enable it to more than double its current valuation in a planned autumn float. A listing at that level could unlock billions of dollars in gains for the five-year-old company's early investors but would also test public markets that are growing more nervous about the AI boom. Anthropic's backers say booming demand for the lab's advanced AI models and tools justifies their lofty expectations. Investors expect the Claude maker's annualized revenue to be between $100 billion and $120 billion by the end of 2026 -- using the startup's preferred measure, which infers full-year sales from recent performance -- up by more than 10 times over the course of 2026. "If Anthropic is growing 800 percent a year, you'd think at the incredibly low end they would trade at 30 times [revenue]," said one investor in the group. "That would make them a $3 trillion company." According to Bloomberg (paywalled), Anthropic is currently in talks to acquire Decart AI for roughly $6 billion. "Decart develops world models alongside software designed to lower AI training expenses by improving how efficiently chips are utilized," reports Quartz. "That capability could allow Anthropic to get more out of its current infrastructure as demand grows. If the deal closes, Decart's team would join Anthropic's inference and performance organization."

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The signs point to Hamas being serious about disarming. The recent Board of Peace plan for it to surrender its weapons should be carried out.

A U.S. oil company says it could be on the verge of a major discovery in Greenland. The proposal comes at a tricky time for the Arctic island, and locals are lining up against it.

U.S. leaders limited immigration amid economic and social turmoil. Historians see similarities to Trump’s crackdown, with a catch: He’s doing it without Congress.

Heart Aerospace's X1, billed as the world's largest battery-electric aircraft, completed a 27-minute maiden flight in New York using more than 1 MW of power and only about $5 worth of electricity. The 106-foot-wingspan demonstrator is a precursor to the company's 30-seat hybrid-electric ES-30 regional airliner, targeted for service in 2031. Interesting Engineering reports: Developed by Heart Aerospace, the X1 demonstrator lifted off from Plattsburgh International Airport in New York on Wednesday, August 12. The piloted aircraft remained in the skies for about 27 minutes and made it to a 1,100-foot altitude above ground level (AGL). According to the Swedish aerospace company, the aircraft has a wingspan of 106 feet (32 meters). It's additionally 76 feet (23 meters) long and has a takeoff weight exceeding 25,000 lbs (11,340 kilograms). "With the first flight of X1, Heart Aerospace has demonstrated electric flight at the scale of a commercial airliner," said Anders Forslund, Heart Aerospace founder and CEO. "Electric commercial aircraft have the potential to fundamentally reshape airline economics and, ultimately, lower the cost ofÂair travelÂfor passengers." "This is at the heart of our vision for abundant air travel, with electrification enabling more affordable, frequent, and cleaner air service to and from airports closer to home." You can watch the first flight on YouTube.

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Apple is reportedly negotiating multi-year deals with news publishers to give its redesigned Siri access to current news and other information, with payments potentially tied to how often publishers' content is used. The talks come as Apple prepares to launch its long-delayed Siri AI later this year, after partnering with Google to use distilled Gemini models. Engadget reports: [The Wall Street Journal] did not reveal the specific publishers Apple reached out to, but did note the company has proposed structuring payments around a variable compensation plan, which would see it pay those organizations when their content is used. By contrast, most large AI labs like OpenAI have typically offered guaranteed fees in exchange for broad access. According to the The Journal, Apple has paid publishers for access to their content in the past as part of earlier agreements that saw the company secure AI training rights.

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Even at a time of anti-immigration politics, there has never been a richer variety of Mexican restaurants in the United States.

"In order to salve the mental health of freshman students, the University of Michigan has implemented a Pass/No Credit system for new students to improve their mental health," writes Slashdot reader Ol Olsoc. "The process, called 'Grade Covering,' is aimed at helping with the mental health crisis that students face by lessening grade pressure." Axios reports: U-M's College of Literature, Science and the Arts plans to replace first-semester letter grades on freshmen's transcripts with pass/no-credit marks, tentatively beginning in fall 2027. Professors would still assign grades, but they wouldn't appear on external transcripts or count toward students' GPAs. U-M says the idea, known as "grade covering," could help students adjust to college, take academic risks and "embrace the joy of learning." University spokesperson Chris Sebastian tells Axios that LSA faculty, staff and students will continue shaping the pilot, with more details to come this fall. "While I am sure that there is some pressure on freshman students, one of the best ways of dealing with pressure is enduring it and overcoming it, not attempting to shield people from it," comments Ol Olsoc.

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The city of Belém in northern Brazil was overwhelmed by an outbreak of dengue two years ago. An all-out municipal effort has reduced cases and may offer lessons to American cities.

Longtime Slashdot reader sbinning shares a press release: The U.S. Department of Veterans Affairs announced the launch of a new clinical trial to evaluate the effectiveness and safety of psilocybin to treat major depression in Veterans, including those with concurrent PTSD. The new trial comes after a recent executive order on "Accelerating Medical Treatments for Serious Mental Illness," which aims to increase clinical trial participation and accelerate innovative research models and drug approvals for psychedelic drugs. [...] The randomized, controlled trial will enroll Veterans diagnosed with treatment-resistant major depressive disorder, with or without concurrent PTSD, and will compare outcomes between two psilocybin dosage levels. The study will also assess participants' levels of depression before and after treatment, tolerability of side effects, and overall patient-reported depression. [...] In addition to this trial, VA is involved in 20 active clinical trials focused on psychedelic therapies for mental health conditions. All VA research -- including research into psychedelics -- is conducted under strict safety protocols and in full compliance with federal guidelines.

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Is Kansas just the beginning?

After 13 years of observations and data processing, astronomers have released the largest two-dimensional map of the universe ever assembled, "offering a sweeping new view of nearly 4 billion celestial objects across roughly three-quarters of the sky," reports Space.com. From the report: The new map, created by the Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Surveys team, contains a staggering 5.6 trillion pixels and combines more than 263,000 telescope exposures collected over more than a decade. The observations span visible and near-infrared wavelengths, providing an enormous portrait of stars, galaxies and other cosmic phenomena across the sky, according to a statement from the National Science Foundation (NSF) NOIRLab. "It's part of the fabric of astronomy research now," David Schlegel, co-lead of the Legacy Surveys and a scientist at the U.S. Department of Energy's Lawrence Berkeley National Laboratory, said in a statement. "When you're working with astronomical objects today, you often start by pulling up the Legacy Imaging Viewer to see what you're looking at."

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The retreat by the Justice Department effectively allowed a pillar of the Prohibition-era National Firearms Act to lapse.

The deadly strikes are part of a long-running maritime battle with Ukraine and echo battles over other key shipping routes around the world.

With forecasters issuing a warning for very high temperatures, this summer is on track to be one of the hottest yet.

An anonymous reader quotes a report from The New York Times: Two days before tens of thousands of migrants surged into Ceuta, one of Spain's enclaves on Morocco's northern coast, a newspaper there posted a video on TikTok and Instagram showing two young women walking in the city in wet suits, their hair still damp. The posts didn't say so explicitly, but the implication was clear: The women had just swum across the border from Morocco. "Ceuta can't take it anymore," the newspaper, El Faro de Ceuta, declared in the posts. On the other side of the border, the video resonated very differently. Cropped and reposted in Arabic, the video seemed like an invitation. The women were smiling, flashing peace signs and thumbs up and, most of all, walking around freely. The video seemed to legitimize rumors that had percolated for weeks on social media suggesting that a recent ruling by Spain's Supreme Court meant migrants who arrived illegally by sea could stay in the country. As one account on Facebook put it, falsely, "Ceuta is turning into an open gate," when in fact migrants still faced expulsion after a judicial review. The responses to the posts about the swimmers were a critical part of a cascade of disinformation that experts described as one of the starkest instances in which social media contributed directly to a real-world tragedy.

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The baby, who was born Wednesday with a severe heart defect, drew the attention of anti-abortion activists and the Texas attorney general after the intended parents wanted the surrogate mother to have an abortion.

The agent, Adam Saracco, was charged with misdemeanor after the altercation at a gas station near Chicago last year during the Trump administration’s crackdown there.

Two families have been trapped by settlers for days, casting a spotlight on the army’s struggle to curtail settler violence and protect Palestinians living in the occupied West Bank.