Ars Technica

On Thursday, a large group of university and private industry researchers unveiled Genesis, a new open source computer simulation system that lets robots practice tasks in simulated reality 430,000 times faster than in the real world. Researchers can also use an AI agent to generate 3D physics simulations from text prompts.

The accelerated simulation means a neural network for piloting robots can spend the virtual equivalent of decades learning to pick up objects, walk, or manipulate tools during just hours of real computer time.

"One hour of compute time gives a robot 10 years of training experience. That's how Neo was able to learn martial arts in a blink of an eye in the Matrix Dojo," wrote Genesis paper co-author Jim Fan on X, who says he played a "minor part" in the research. Fan has previously worked on several robotics simulation projects for Nvidia.

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For months, popular fighting game YouTubers have been under attack. Even the seemingly most cautious among them have been duped by sophisticated phishing attacks that hack their accounts to push cryptocurrency scams by convincingly appearing to offer legitimate sponsorships from established brands.

These scams often start with bad actors seemingly taking over verified accounts on X (formerly Twitter) with substantial followings and then using them to impersonate marketing managers at real brands who can be easily found on LinkedIn.

The fake X accounts go to great lengths to appear legitimate. They link to brands' actual websites and populate feeds with histories seemingly spanning decades by re-posting brands' authentic posts.

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When the impossibly punctuated S.T.A.L.K.E.R. 2: Heart of Chernobyl released on November 20, after many delays (that included the Russian invasion of the developer's native Ukraine), it seemed like it could have used even more delays.

Stalker 2 had big performance issues and game-breaking bugs, along with balance and difficulty spike issues. Some things that seem "wrong" in the game are just going to stay that way. The first-person survival/shooter series has always had a certain wobbly, wild feel to it. This expresses itself in both the game world, where a major villain can off themselves by walking through a window, and in the tech stack, where broken save games, DIY optimization, and other unmet needs have created thriving mod scenes.

Developer GSC Game World has been steadfastly patching the game since its release, and the latest one should nudge the needle a bit from "busted" to "charmingly wonky." Amid the "Over 1,800 fixes and adjustments" in Patch 1.1, the big changes are to "A-Life." In porting Stalker 2 to Unreal Engine 5, the developer faced a challenge in getting this global AI management system working, but it's showing its weird self again.

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The Federal Aviation Administration temporarily banned drones over parts of New Jersey yesterday and said "the United States government may use deadly force against" airborne aircraft "if it is determined that the aircraft poses an imminent security threat."

The FAA issued 22 orders imposing "temporary flight restrictions for special security reasons" until January 17, 2025. "At the request of federal security partners, the FAA published 22 Temporary Flight Restrictions (TFRs) prohibiting drone flights over critical New Jersey infrastructure," an FAA statement said.

Each NOTAM (Notice to Air Missions) affects a specific area. "No UAS [Unmanned Aircraft System] operations are authorized in the areas covered by this NOTAM" unless they have clearance for specific operations, the FAA said. Allowed operations include support for national defense, law enforcement, firefighting, and commercial operations "with a valid statement of work."

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Intel's Core Ultra 200S desktop processors—the company's biggest overhaul of its desktop platform since 2021—consume less power and run a lot cooler than the company's 13th- and 14th-generation Core CPUs. However, early reviewers found that the processors sometimes struggled to match, let alone beat, those older desktop CPUs in some tasks. This was particularly true for games, and people who build their own gaming PCs are a key constituency for these kinds of brand-new high-end chips.

Intel quickly blamed optimization issues for some of the problems, promising performance fixes sometime later in November or December, and the company has outlined the first batch of fixes in a lengthy support document. Of the five identified problems, Intel says it has fixed four; users can get those updates by installing Windows 11 24H2 build 26100.2161 or higher, updating their motherboard's BIOS to the latest version. Non-performance-related blue screens related to Epic's Easy Anti-Cheat software have also been resolved, and users should update to the latest version if they're still having issues.

The performance problems resolved via the Windows update are both related to a missing power plan specific to the Core Ultra processors—Intel didn't have those power plans ready for reviewers, who did all their testing using the generic power profiles provided with Windows. Intel said that this by itself could reduce performance by between 6 and 30 percent, depending on the software.

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Audi provided flights from Washington, DC, to San Francisco and accommodation so Ars could drive the Q6 and SQ6. Ars does not accept paid editorial content.

HEALDSBURG, Calif.—Earlier this summer, Ars got its first drive of Audi's new Q6 e-tron on some very wet roads in Spain. Then, we were driving pre-production Q6s in Euro-spec. Now, the electric SUV is on sale in the US, with more power in the base model and six months more refinement for its software. But the venue change did not bring a change of weather—heavy rain was the order of the day, making me wonder if Audi is building its new electric vehicle on the site of an ancient rain god's temple?

Of all its rivals, Audi appears to have settled into a nomenclature for its vehicles that at least makes a little sense. Odd numbers are for internal combustion engines, even numbers for EVs, although it also appends "e-tron" on the end to make that entirely clear... and give francophones something to snicker about. (Yes, the e-tron GT does not fit into this schema, but nobody's perfect.)

The Q6 e-tron is also the most advanced EV to wear Audi's four rings. Built on a new architecture called PPE (premium platform electric), at its heart is an 800 V powertrain with a 100 kWh (94.4 kWh useable) lithium-ion battery pack that powers a permanently excited synchronous motor driving the rear wheels, and in the case of the quattro versions, an asynchronous motor. The electric motors have 30 percent less energy consumption than those used in the Q8 e-tron, and are smaller and lighter.

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In a widely anticipated test, Blue Origin may ignite the seven main engines on its New Glenn rocket as soon as Thursday at Launch Complex-36 in Florida.

This is the final test the company must complete before verifying the massive rocket is ready for its debut flight, and it is the most dynamic. This will be the first time Blue Origin has ever test-fired the BE-7 engines altogether, in a final rehearsal before launch.

The company did not respond immediately to a request for comment, but the imminent nature of the test was confirmed by a NASA official.

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The publisher of a high-profile, now-corrected study on black plastics has been removed from a critical index of academic journals amid questions about quality criteria, according to a report by Retraction Watch.

On December 16, Clarivate—a scholarly publication analytics company—removed the journal Chemosphere from its platform, the Web of Science, which is a key index for academic journals. The indexing platform tracks citations and calculates journal "impact factors," a proxy for relevance in its field. It's a critical metric not only for the journals but for the academic authors of the journal's articles, who use the score in their pursuit of promotions and research funding.

To be included in the Web of Science, Clarivate requires journals to follow editorial quality criteria. According to Retraction Watch, Chemosphere has retracted eight articles this month and published 60 expressions of concern since April.

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The AI-generated video scene has been hopping this year (or twirling wildly, as the case may be). This past week alone we've seen releases or announcements of OpenAI's Sora, Pika AI's Pika 2, Google's Veo 2, and Minimax's video-01-live. It's frankly hard to keep up, and even tougher to test them all. But recently, we put a new open-weights AI video synthesis model, Tencent's HunyuanVideo, to the test—and it's surprisingly capable for being a "free" model.

Unlike the aforementioned models, HunyuanVideo's neural network weights are openly distributed, which means they can be run locally under the right circumstances (people have already demonstrated it on a consumer 24 GB VRAM GPU) and it can be fine-tuned or used with LoRAs to teach it new concepts.

Notably, a few Chinese companies have been at the forefront of AI video for most of this year, and some experts speculate that the reason is less reticence to train on copyrighted materials, use images and names of famous celebrities, and incorporate some uncensored video sources. As we saw with Stable Diffusion 3's mangled release, including nudity or pornography in training data may allow these models achieve better results by providing more information about human bodies. HunyuanVideo notably allows uncensored outputs, so unlike the commercial video models out there, it can generate videos of anatomically realistic, nude humans.

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David Corenswet stars in James Gunn's Superman reboot.

The Internet has been buzzing the last few days about James Gunn's Superman reboot slated for release next year. The studio released a "motion poster" earlier this week set to a moody cover of John Williams' "Superman March," as well as a teaser for a teaser for the film. That teaser just dropped.

Clearly, given all the buildup, what director James Gunn wants for Christmas is for everyone to get excited over his Superman movie. And you know what? It kinda worked, especially since Superman's dog Krypto makes an adorably welcome appearance.

Gunn describes his take as less of an origin story and more of a journey, with Superman struggling to reconcile his Kryptonian heritage and aristocratic origins with his small-town, adoptive human family. Gunn tapped David Corenswet to play Clark Kent/Superman, at 25 a bit more established than the young cub reporter of Smallville, for instance. Rachel Brosnahan plays Lois Lane, Skyler Gisondo plays Jimmy Olsen, and Nicholas Holt is arch-nemesis Lex Luther. (Holt's son shaved his head for the role.) Luther's sidekicks are played by Sara Sampaio as Eve Teschmacher and Terence Rosemore as Otis.

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Amazon workers at seven warehouses walked out Thursday morning, launching a strike ahead of the holidays after Amazon failed to meet a bargaining deadline set by the Teamsters union representing the workers.

In a press release, Teamsters declared it "the largest strike against Amazon in US history." Teamsters general president, Sean O'Brien, warned shoppers of potential delays, saying "you can blame Amazon’s insatiable greed."

"We gave Amazon a clear deadline to come to the table and do right by our members. They ignored it," O’Brien said. "These greedy executives had every chance to show decency and respect for the people who make their obscene profits possible. Instead, they’ve pushed workers to the limit and now they’re paying the price. This strike is on them."

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When the Sun is blazing and the wind is blowing, Germany’s solar and wind power plants swing into high gear. For nine days in July 2023, renewables produced more than 70 percent of the electricity generated in the country; there are times when wind turbines even need to be turned off to avoid overloading the grid.

But on other days, clouds mute solar energy down to a flicker and wind turbines languish. For nearly a week in January 2023, renewable energy generation fell to less than 30 percent of the nation’s total, and gas-, oil- and coal-powered plants revved up to pick up the slack.

Germans call these periods Dunkelflauten, meaning “dark doldrums,” and they can last for a week or longer. They’re a major concern for doldrum-afflicted places like Germany and parts of the United States as nations increasingly push renewable-energy development. Solar and wind combined contribute 40 percent of overall energy generation in Germany and 15 percent in the US and, as of December 2024, both countries have goals of becoming 100 percent clean-energy-powered by 2035.

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Amazon announced in September that it will require workers to be in the office five days a week starting in January. Employee backlash ensued, not just because return-to-office (RTO) mandates can be unpopular but also because Amazon is using some of the worst strategies for issuing RTO mandates.

Ahead of the mandate, Amazon had been letting many employees work remotely for two days a week, with a smaller number of workers being totally remote. But despite saying that employees would have to commute five days per week, the conglomerate doesn’t have enough office space to accommodate over 350,000 employees. Personnel in “at least seven cities,” including Phoenix and Austin, Texas, have had their RTO dates delayed until after January, Bloomberg reported today, citing “people familiar with the situation." Employees in Dallas won’t have enough space until March or April, and an office in New York City won’t have sufficient space until May, per Bloomberg's sources.

RTO dates are also delayed in Atlanta, Houston, and Nashville, Tennessee, Business Insider reported this week, citing “internal Amazon notifications.”

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An AT&T customer who switched to the company's FirstNet service for first responders got quite the shock when his bill came in at $6,223.60, instead of the roughly $260 that his four-line plan previously cost each month.

The Texas man described his experience in a now-deleted Reddit post three days ago, saying he hadn't been able to get the obviously incorrect bill reversed despite calling AT&T and going to an AT&T store in Dallas. The case drew plenty of attention and the bill was finally wiped out several days after the customer contacted the AT&T president's office.

The customer said he received the billing email on December 11. An automatic payment was scheduled for December 15, but he canceled the autopay before the money was charged. The whole mess took a week to straighten out.

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The Louisiana resident infected with H5N1 bird flu is hospitalized in critical condition and suffering from severe respiratory symptoms, the Louisiana health department revealed Wednesday.

The health department had reported the presumptive positive case on Friday and noted the person was hospitalized, as Ars reported. But a spokesperson had, at the time, declined to provide Ars with the patient's condition or further details, citing patient confidentiality and an ongoing public health investigation.

This morning, the Centers for Disease Control and Prevention announced that it had confirmed the state's H5N1 testing and determined that the case "marks the first instance of severe illness linked to the virus in the United States."

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In theory, it ought to be as good a time as ever to be a gamer on the iPhone.

Classic console emulators have rolled out to the platform for the first time, and they work great. There are strong libraries of non-skeezy mobile games on Apple Arcade and Netflix Games, streaming via Xbox and PlayStation services is continuing apace, and there are even a few AAA console games now running natively on the platform, like Assassin's Creed and Resident Evil titles.

Some of those games need a traditional, dual-stick game controller to work well, though, and Apple bafflingly offers no first-party solution for this.

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Arm and Qualcomm's dispute over Qualcomm's Snapdragon X Elite chips is continuing in court this week, with executives from each company taking the stand and attempting to downplay the accusations from the other side.

If you haven't been following along, the crux of the issue is Qualcomm's purchase of a chip design firm called Nuvia in 2021. Nuvia was originally founded by ex-Apple chip designers to create high-performance Arm chips for servers, but Qualcomm took an interest in Nuvia's work and acquired the company to help it create high-end Snapdragon processors for consumer PCs instead. Arm claims that this was a violation of its licensing agreements with Nuvia and is seeking to have all chips based on Nuvia technology destroyed.

According to Reuters, Arm CEO Rene Haas testified this week that the Nuvia acquisition is depriving Arm of about $50 million a year, on top of the roughly $300 million a year in fees that Qualcomm already pays Arm to use its instruction set and some elements of its chip designs. This is because Qualcomm pays Arm lower royalty rates than Nuvia had agreed to pay when it was still an independent company.

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On Wednesday, the Supreme Court confirmed it would review whether a federal law that could ban or force a sale of TikTok is unconstitutional.

The announcement came just one day after TikTok and its owner ByteDance petitioned SCOTUS for a temporary injunction to halt the ban until the high court could consider what TikTok claimed is "a massive and unprecedented speech restriction" ahead of a change in US presidential administrations.

“We’re pleased with today’s Supreme Court order," TikTok said in a statement. "We believe the Court will find the TikTok ban unconstitutional so the over 170 million Americans on our platform can continue to exercise their free speech rights.”

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On Wednesday, OpenAI launched a 1-800-CHATGPT (1-800-242-8478) telephone number that anyone in the US can call to talk to ChatGPT via voice chat for up to 15 minutes for free. The company also says that people outside the US can send text messages to the same number for free using WhatsApp.

Upon calling, users hear a voice say, "Hello again, it's ChatGPT, an AI assistant. Our conversation may be reviewed for safety. How can I help you?" Callers can ask ChatGPT anything they would normally ask the AI assistant and have a live, interactive conversation.

During a livestream demo of "Calling with ChatGPT" during Day 10 of "12 Days of OpenAI," OpenAI employees demonstrated several examples of the telephone-based voice chat in action, asking ChatGPT to identify a distinctive house in California and for help in translating a message into Spanish for a friend. For fun, they showed calls from an iPhone, a flip phone, and a vintage rotary phone.

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US government authorities are reportedly investigating whether to ban TP-Link wireless routers, which have been targeted in some high-profile attacks linked to the Chinese government. TP-Link, which was founded in China in 1996 and said it relocated its headquarters to the US in October this year, has racked up significant market share in US homes and businesses.

US authorities are investigating whether TP-Link "poses a national-security risk and are considering banning the devices," The Wall Street Journal reported today. The WSJ notes that TP-Link is "the top choice on Amazon.com, and powers Internet communications for the Defense Department and other federal government agencies."

The WSJ wrote:

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