An anonymous reader quotes a report from Ars Technica: In a makeshift demonstration kitchen in Concord, California, cooking oil splatters in and around a frying pan, which catches fire on an unattended gas stove. Within moments, a smoke detector wails. But in this demonstration, something less common happens: An AI-driven sensor activates and wall emitters blast infrasound waves toward the source of the fire in an attempt to put it out. The science of acoustic fire suppression, which has long been known and documented in scientific literature and the press, works by vibrating oxygen molecules away from a fuel source, depriving the fire of a critical component needed for combustion. Indeed, after just a few seconds of infrasound, the tiny kitchen blaze goes out. "We were able to not just point-and-shoot like a fire extinguisher; we figured out how to run it through ducting and distribute it like a sprinkler system," said Geoff Bruder, co-founder and CEO of Sonic Fire Tech, during the presentation. The company's goal is to replace sprinklers, which are effective at stopping fires but can also do significant water damage to a property. Sonic Fire Tech appears to be the first company trying to commercialize the science of acoustic fire suppression. Its executives have already been touring Southern California; Wednesday's event was the first in the northern half of the state. The company aims to make this infrasound technique mainstream in both commercial (for instance, a data center, where sprinklers would damage electronics) and in-home installations, given that sprinklers are already required in all new California homes built in 2011 and later. Sonic Fire Tech also hopes to produce a backpack-based system that could be worn by wildland firefighters headed out into the field. "We are making meaningful technological improvements on a monthly basis," Stefan Pollack, a company spokesperson, emailed Ars after the event. But two experts who spoke with Ars raised serious questions about the potential for this technology to supplant traditional sprinklers in a home. They are even more skeptical as to whether the technique can be effective in an uncontrolled wildfire situation, where flames can grow very quickly. Experts are concerned that infrasound may knock down small flames but does not cool hot surfaces or wet fuel like sprinklers do, which raises the risk of re-ignition, smoldering fires, hidden fires, or blocked fires. Sonic Fire Tech has claimed third-party validation and possible NFPA 13D equivalency, but it has not publicly released full testing details. Fire officials and outside observers also want more information about reliability, maintenance, calibration, and how system failures would be detected and communicated.

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The Independent reports that "more than a third of children in the UK have found a way around age verification measures" for social media sites and other online platforms. And new research from online safety organisation Internet Matters "suggests one in six parents have helped their child to get past age verification checks, with children reporting 'tricking' platforms into thinking they are older. " Parents also said they had caught their children drawing on facial hair in a bid to evade the technology. One mother said: "I did catch my son using an eyebrow pencil to draw a moustache on his face, and it verified him as 15 years old"... From a sample of 1,000 UK children, 46% said they believed age checks are easy to bypass, while 32% admitted to having done so. 49% of the children surveyed said they'd still encountered harmful content, according to the online safety activists. The group called the figure "unacceptable," and complained that age verification measures "are often ineffective in practice or easy to bypass."

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A Wall Street Journal opinion piece warns of "a troubling trend" in AI's growth. "Rather than selling software, some AI companies are paying their partners to use it." It cites OpenAI's $1.5 billion joint venture with private-equity firms, Anthropic's $200 million contribution to a private-equity firm joint venture, and Google's $750 million subsidization of Gemini's adoption by consulting firms. "These agreements muddy the distinction between a company's sound growth trajectory and artificial financial engineering." [T]he scale and structure of the recent AI deals go beyond standard incentive mechanisms... When a seller pays customers to buy its products, it is unclear if its revenue growth reflects vibrant demand or a willingness to accept subsidies. Slashdot reader destinyland writes: This warning comes from a prominent figure in the investing community. For six years Robert Pozen was chairman of America's oldest mutual fund company, after five years at Fidelity. An advocate for corporate governance, he's currently a lecturer at MIT's business school (and the author of the book Remote Inc.: How to Thrive at Work...Wherever You Are). "As AI companies prepare initial public offerings, investors should scrutinize their numbers closely," Pozner writes, warning about "time-limited financial support". "In evaluating AI sales figures, analysts should consider the distorted incentives that the recent financing deals create," writes Pozner: Private-equity firms, enticed by promised returns, might demand rapid rollouts of AI products, rather than ensuring their orderly and safe development. Portfolio companies of private-equity firms may embrace AI tools not because they are needed but because adoption is mandated by their owners. Consultants may favor one set of AI models based on the subsidy instead of the merits. If guarantees and subsidies are major factors in the rapid adoption of AI tools, investors should be skeptical of AI companies' revenue projections. Many of their customers enticed by consultants will stop paying full price when the financial incentives are gone. Many of the portfolio companies of private-equity firms could back away from selected AI tools once these joint ventures expire. The challenge with evaluating these AI financing deals is the lack of transparency. At present, AI vendors don't separate revenue driven by subsidies or joint ventures from standard sales. The lesson from the telecom debacle is that financial engineering can obscure, for years, the difference between real customer demand and demand driven by incentives. When AI companies begin to finance their own product distribution, guaranteeing returns to investors and subsidizing sales, it's a signal for investors to dig deeper. Investing in an AI company? Ask what percentage of enterprise revenue is coming from subsidized channels or joint ventures, Pozner suggests. And the renewal/retention rate for customers not supported by subsidies or joint ventures...

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Age verification became mandatory for chat access on Roblox in January — and Friday morning Quartz reported it's apparently impacted the company's financials: Roblox cut its full-year 2026 bookings forecast by roughly $900 million at the midpoint on Thursday, blaming stronger-than-expected headwinds from its mandatory age-verification rollout on an audience that skews heavily toward children and teenagers. Full-year 2026 bookings are now projected at $7.33 billion to $7.60 billion, a range that sits roughly $900 million below the prior guidance of $8.28 billion to $8.55 billion; analysts had expected $8.38 billion, according to Yahoo Finance. Roblox stock fell almost 22% in premarket trading.... Daily active users rose 35% year over year to 132 million, while hours engaged climbed 43% to 31 billion hours... Daily Active Users and hours engaged fell below forecasts of 143.8 million and 33.68 billion, respectively, according to Yahoo Finance... Users who have not completed age checks have faced restricted communication features, and the process has weighed on the platform's ability to bring in new users. Russia's blocking of the platform, which took effect in December 2025, added further drag on user growth, according to Yahoo Finance. As of the end of the first quarter, 51% of global daily active users had completed age verification, with 65% of U.S. users having done so, Roblox said.... The safety push has come with legal costs. Roblox accrued $57 million in the first quarter for settlements and settlement proposals with certain states over youth-related consumer protection and digital safety matters, with payments structured over multiple years, the company said. Roblox acknowledged in a letter to shareholders that "our aggressive push to enhance safety lowers our expectations for topline growth in 2026." But they argued that it also "makes our platform fundamentally better and amplifies the long-term growth potential of Roblox through more effective content targeting, tailored communication experiences, and improved community sentiment."

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"So yesterday the Devteam (it is always the Devteam) released version 5.0 of legendary and venerable rogueike compuer game NetHack," writes the Rogue-like games column @Play. "It is 39 years old..." MilenCent (Slashdot reader #219,397) writes: In addition to play changes it's left for players to discover, this version updates the code to compile with C99, makes it much easier to cross compile the code for other systems than the one running, and now uses Lua for its dungeon generation. Happy hacking! For new players, "Nethack 5.0 now has an optional tutorial in the early phases of the game that might help you," notes the Rogue-like games column @Play: Three systems binaries are provided: Windows, MS-DOS and Amiga. Yes, Nethack still supports MS-DOS, and yes, it still supports classic Amiga: it explicitly supports AmigaDOS 3.0, meaning it can still run on 68000 machines... That these are the only systems they provide binaries for shouldn't be seen as an indication that these are the "most important" platforms for Nethack, it's more that, since it's entirely open source, building it yourself is entirely possible, and more expected than with most software. Nethack can be built for Linux, Windows 8-11, AmigaDOS, MacOS (I'm not sure if this includes classic Mac too but it might), Windows CE (wow), OS/2 (additional wow), BeOS, VMS and multiple Unixes... Another option is to play through public Nethack servers. The most popular of these are probably alt.org and Hardfought.

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"Vibe coding just got a whole lot more adorable," writes Engadget: OpenAI introduced AI-generated pets to the Codex app, its agentic tool that helps with coding. These "optional animated companions" don't do any coding themselves, but serve as a floating overlay that can tell you what Codex is working on, notify you when Codex completes a task or whether it needs your input on something. The new feature lets developers see Codex's active thread, without having to switch away from your current open app. "The feature ships with eight built-in variations — including a cat and dog," reports Mashable. "But the more interesting play is the custom pet creator." Users can prompt Codex directly to generate their own companion, then share it online. A quick scroll through the homepage reveals the community has already gotten to work. Current creations include Goku, Patrick Star, Microsoft's long-retired Clippy, OpenAI CEO Sam Altman, Anthropic CEO Dario Amodei, and — naturally — a goblin. There's also Grogu, Dobby, a tiny Bob Rossi, and a "Doge-style Shiba Inu dog"...

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The Associated Press reports: On a March afternoon, artificial intelligence detected something resembling smoke on a camera feed from Arizona's Coconino National Forest. Human analysts verified it wasn't a cloud or dust, then alerted the state's forest service and largest electric utility. One of dozens of AI cameras installed for the utility Arizona Public Service had spotted early signs of what came to be known as the Diamond Fire. Firefighters raced to the scene and contained the blaze before it grew past 7 acres (2.8 hectares). As record-breaking heat and an abysmal snowpack raise concerns about severe wildfires, states across the fire-prone West are adding AI to their wildfire detection toolbox, banking on the technology to help save lives and property. Arizona Public Service has nearly 40 active AI smoke-detection cameras and plans to have 71 by summer's end, and the state's fire agency has deployed seven of its own. Another utility, Xcel Energy in Colorado, has installed 126 and aims to have cameras in seven of the eight states it serves by year's end... ALERTCalifornia is a network of some 1,240 AI-enabled cameras across the Golden State that work similar to the system in Arizona.... Pano AI, whose technology combines high-definition camera feeds, satellite data and AI monitoring, has seen a growing interest in its cameras since launching in 2020. They've been deployed in Australia, Canada and 17 U.S. states, including Oregon, Washington and Texas... Last year, its technology detected 725 wildfires in the U.S., the company said... Cindy Kobold, an Arizona Public Service meteorologist, said the technology notifies them about 45 minutes faster on average than the first 911 call.

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