ArsTechnica
When does your brain think something is worth the wait?
Whether it’s braving the long line at a trendy new restaurant or hanging on just a few minutes longer to see if there’s a post-credits scene after a movie, the decision to persevere or ditch it depends on specific regions of our brains.
Waiting is not always about self-control. Deciding to wait (or not to wait) also involves gauging the value of the potential reward. In an experiment that investigated wait times among people with lesions in the frontal cortex of the brain, University of Pennsylvania psychologist Joe Kable and his research team found that subjects with damage to certain regions of the prefrontal cortex were less likely to wait things out.
“[Our] findings suggest that regions of the frontal cortex make computationally distinct contributions to adaptive persistence,” he and his team said in a study recently published in the Journal of Neuroscience.
You can love or hate AI, but it’s killed crappy 8GB versions of pricey PCs and Macs
I'd describe myself as a skeptic of the generative AI revolution—I think the technology as it currently exists is situationally impressive and useful for specific kinds of tasks, but broadly oversold. I'm not sure it will vanish from relevance to quite the extent that other tech fads like the metaverse or NFTs did, but my suspicion is that companies like Nvidia and OpenAI are riding a bubble that will pop or deflate over time as more companies and individuals run up against the technology's limitations, and as it fails to advance as quickly or as impressively as its most ardent boosters are predicting.
Maybe you agree with me and maybe you don't! I'm not necessarily trying to convince you one way or the other. But I am here to say that even if you agree with me, we can all celebrate the one unambiguously positive thing that the generative AI hype cycle has done for computers this year: the RAM floor for many PCs and all Macs is now finally 16GB instead of 8GB.
Companies like Apple and Microsoft have, for years, created attractive, high-powered hardware with 8GB of memory in it, most egregiously in $1,000-and-up putative "pro" computers like last year's $1,599 M3 MacBook Pro or the Surface Pro 9.
Passkey technology is elegant, but it’s most definitely not usable security
It's that time again, when families and friends gather and implore the more technically inclined among them to troubleshoot problems they're having behind the device screens all around them. One of the most vexing and most common problems is logging into accounts in a way that's both secure and reliable.
Using the same password everywhere is easy, but in an age of mass data breaches and precision-orchestrated phishing attacks, it's also highly unadvisable. Then again, creating hundreds of unique passwords, storing them securely, and keeping them out of the hands of phishers and database hackers is hard enough for experts, let alone Uncle Charlie, who got his first smartphone only a few years ago. No wonder this problem never goes away.
Passkeys—the much-talked-about password alternative to passwords that have been widely available for almost two years—was supposed to fix all that. When I wrote about passkeys two years ago, I was a big believer. I remain convinced that passkeys mount the steepest hurdle yet for phishers, SIM swappers, database plunderers, and other adversaries trying to hijack accounts. How and why is that?
After 60 years of spaceflight patches, here are some of our favorites
The art of space mission patches is now more than six decades old, dating to the Vostok 6 mission in 1963 that carried Soviet cosmonaut Valentina Tereshkova into low-Earth orbit for nearly three days. The patch for the first female human spaceflight showcased a dove flying above the letters designating the Soviet Union, CCCP.
That patch was not publicly revealed at the time, and the use of specially designed patches was employed only infrequently by subsequent Soviet missions. NASA's first mission patch would not follow for two years, but the practice would prove more sticky for missions in the United States and become a time-honored tradition.
The first NASA flight to produce a mission-specific patch worn by crew members was Gemini 5. It flew in August 1965, carrying astronauts Gordon Cooper and Pete Conrad on an eight-day mission inside a small Gemini spacecraft. At the time, it was the longest spaceflight conducted by anyone.
Tech worker movements grow as threats of RTO, AI loom
It feels like tech workers have caught very few breaks over the past several years, between ongoing mass layoffs, stagnating wages amid inflation, AI supposedly coming for jobs, and unpopular orders to return to office that, for many, threaten to disrupt work-life balance.
But in 2024, a potentially critical mass of tech workers seemed to reach a breaking point. As labor rights groups advocating for tech workers told Ars, these workers are banding together in sustained strong numbers and are either winning or appear tantalizingly close to winning better worker conditions at major tech companies, including Amazon, Apple, Google, and Microsoft.
In February, the industry-wide Tech Workers Coalition (TWC) noted that "the tech workers movement is far more expansive and impactful" than even labor rights advocates realized, noting that unionized tech workers have gone beyond early stories about Googlers marching in the streets and now "make the headlines on a daily basis."
After a 24-second test of its engines, the New Glenn rocket is ready to fly
After a long day of stops and starts that stretched well into the evening, and on what appeared to be the company's fifth attempt Friday, Blue Origin successfully ignited the seven main engines on its massive New Glenn rocket.
The test firing came as fog built over the Florida coast, and it marks the final major step in the rocket company's campaign to bring the New Glenn rocket—a privately developed, super-heavy lift vehicle—to launch readiness. Blue Origin said it fired the vehicle's engines for a duration of 24 seconds. They fired at full thrust for 13 of those seconds.
"This is a monumental milestone and a glimpse of what’s just around the corner for New Glenn’s first launch," said Jarrett Jones, senior vice president of the New Glenn program, in a news release. "Today’s success proves that our rigorous approach to testing—combined with our incredible tooling and design engineering–is working as intended."
YouTuber won DMCA fight with fake Nintendo lawyer by detecting spoofed email
A brave YouTuber has managed to defeat a fake Nintendo lawyer improperly targeting his channel with copyright takedowns that could have seen his entire channel removed if YouTube issued one more strike.
Sharing his story with The Verge, Dominik "Domtendo" Neumayer—a German YouTuber who has broadcasted play-throughs of popular games for 17 years—said that it all started when YouTube removed some videos from his channel that were centered on The Legend of Zelda: Echoes of Wisdom. Those removals came after a pair of complaints were filed under the Digital Millennium Copyright Act (DMCA) and generated two strikes. Everyone on YouTube knows that three strikes mean you're out and off the platform permanently.
Suddenly at risk of losing the entire channel he had built on YouTube, Neumayer was stunned, The Verge noted, partly because most game companies consider "Let's Play" videos like his to be free marketing, not a threat to their business. And while Nintendo has been known to target YouTubers with DMCA takedowns, it generally historically took no issues with accounts like his.
The physics of ugly Christmas sweaters
'Tis the season for many holiday traditions, including the Ugly Christmas Sweater—you know, those 1950s-style heavy knits featuring some kind of cartoonish seasonal decoration, like snowflakes, Santa Claus, or—in the case of Mark Darcy from Bridget Jones' Diary (2001)—Rudolph the Red-Nosed Reindeer. "It’s obnoxious and tacky, but also fuzzy and kind of wholesome—the fashion equivalent of a Hallmark Christmas movie (with a healthy dose of tongue-in-cheek)," as CNN's Marianna Cerini recently observed.
Fashion (or lack thereof) aside, sweaters and other knitted fabric are also fascinating to physicists and mathematicians. Case in point: a recent paper published in the journal Physical Review Letters examining the complex mechanics behind the many resting shapes a good Jersey knit can form while at rest.
Knitted fabrics are part of a class of intertwined materials—which also includes birds' nests, surgical knots, knotted shoelaces, and even the degradation of paper fibers in ancient manuscripts. Knitted fabrics are technically a type of metamaterial: an engineered material that gets its properties not from the base materials but from their designed structures. The elasticity (aka, stretchiness) of knitted fabrics is an emergent property: the whole is more than the sum of its parts. How those components (strands of yarn) are arranged at an intermediate scale (the structure) determines the macro scale properties of the resulting fabric.
OpenAI defends for-profit shift as critical to sustain humanitarian mission
OpenAI has finally shared details about its plans to shake up its core business by shifting to a for-profit corporate structure.
On Thursday, OpenAI posted on its blog, confirming that in 2025, the existing for-profit arm will be transformed into a Delaware-based public benefit corporation (PBC). As a PBC, OpenAI would be required to balance its shareholders' and stakeholders' interests with the public benefit. To achieve that, OpenAI would offer "ordinary shares of stock" while using some profits to further its mission—"ensuring artificial general intelligence (AGI) benefits all of humanity"—to serve a social good.
To compensate for losing control over the for-profit, the nonprofit would have some shares in the PBC, but it's currently unclear how many will be allotted. Independent financial advisors will help OpenAI reach a "fair valuation," the blog said, while promising the new structure would "multiply" the donations that previously supported the nonprofit.
Hertz continues EV purge, asks renters if they want to buy instead of return
Apparently Hertz's purging of electric vehicles from its fleet isn't going fast enough for the car rental giant. A Reddit user posted an offer they received from Hertz to buy the 2023 Tesla Model 3 they had been renting for $17,913.
Hertz originally went strong into EVs, announcing a plan to buy 100,000 Model 3s for its fleet by the end of 2021, but 16 months later had acquired only half that amount. The company found that repair costs—especially for Teslas, which averaged 20 percent more than other EVs—were cutting into its profit margins. Customer demand was also not what Hertz had hoped for; last January, it announced plans to sell off 20,000 EVs.
Asking its customers if they want to purchase their rentals isn't a new strategy for Hertz. "By connecting our rental customers who opt into our emails to our sales channels, we're not only building awareness of the fact that we sell cars but also offering a unique opportunity to someone who may be in the market for the same car they have on rent," Hertz communications director Jamie Line told The Verge.
Could microwaved grapes be used for quantum sensing?
There are thousands of YouTube videos in which DIY science enthusiasts cut grapes in half—leaving just a thin bit of skin connecting them—and put the grapes in the microwave, just to marvel at the sparks and plume of ionized gas (plasma) that the grapes produce. This quirky property of grapes might help make more efficient quantum sensors, according to a new paper published in the journal Physical Review Applied.
The plasma-inducing grape effect was first observed in 1994, per the authors. As previously reported, the usual explanation for the generation of plasmas is that grapes are so small that the irradiating microwaves become highly concentrated in the grape tissue, ripping some the molecules apart to generate charged ions (adding to the electrolytes already present in the grapes). The electromagnetic field that forms causes ions to flow from one grape half to the other via the connecting skin—at least at first. That's when you get the initial sparks. Eventually, the ions start passing through the surrounding air as well, ionizing it to produce that hot plume of plasma.
But in 2019, Trent University scientists showed that explanation isn't quite right. The skin bridge isn't necessary for the effect to occur. Rather, the plasma is generated by an electromagnetic "hot spot." The grapes have the right refractive index and size to "trap" microwaves, so putting two of them close together leads to the generation of a hot spot between them. The trick also works with gooseberries, large blackberries, and quail eggs, as well as hydrogel beads—plastic beads soaked in water. ("Many microwaves were in fact harmed during the experiments," co-author Hamza Khattak admitted at the time.)
Ever heard of “Llady Gaga”? Universal files piracy suit over alleged knockoffs.
Universal Music Group yesterday sued a music firm that allegedly distributes pirated songs on popular streaming services under misspelled versions of popular artists' names—such as "Kendrik Laamar," "Arriana Gramde," "Jutin Biber," and "Llady Gaga." The UMG Recordings lawsuit against the French company Believe and its US-based subsidiary, TuneCore, alleges that "Believe is fully aware that its business model is fueled by rampant piracy" and "turned a blind eye to the fact that its music catalog was rife with copyright infringing sound recordings."
Believe is a publicly traded company with about 2,020 employees in over 50 countries and reported $518 million (474.1 million euros) in revenue in the first half of 2024. Believe says its "mission is to develop independent artists and labels in the digital world."
UMG alleges that Believe achieved "dramatic growth and profitability in recent years by operating as a hub for the distribution of infringing copies of the world's most popular copyrighted recordings." Believe has licensing deals with online platforms "including TikTok, YouTube, Spotify, Apple Music, Instagram and hundreds of others," the lawsuit said.
Driving the biggest, least-efficient electric car: The Hummer EV SUV
GMC's Hummers have always been divisive. After getting hold of the rights to a civilian version of the US military vehicle in 1999, the company set about designing new, smaller vehicles to create an entire range. The ungainly H2 and H3 followed, both SUVs playing to the sensibilities of a country grappling with its warlike nature. By 2010, the Hummer brand was dead and laid dormant until someone had the bright idea to revive it for the electric vehicle generation. We drove the pickup version of that new Hummer in 2022, now it's time for the $104,650 Hummer EV SUV.
I'll admit I was worried that the Hummer EV wasn't going to fit in my parking space. This is an extremely large vehicle, one that's classified as a class 3 medium-duty truck—hence the yellow lights atop the roof. In fact, at 196.8 inches (5,000 mm) long, it's actually slightly shorter than the pickup version, although that length doesn't count the big spare tire hanging off the back.
The SUV fit—just. Credit: Jonathan Gitlin It even filled the charger bay. Credit: Jonathan GitlinIts 86.5-inch (2,196 mm) width just about fit between the lines, although it was a tight squeeze to try to open a door and climb up into the Hummer if my neighbor was parked as well. And climb up you do—there's 10.2 inches (259 mm) of ground clearance even in the suspension's normal setting, and the overall height is a towering 77.8 inches (1,976 mm). There is an entry mode that drops the car on its air springs by a couple of inches, but only if you remember to engage the feature when you park.
After 31 cargo missions, NASA finds Dragon still has some new tricks
A Cargo Dragon spacecraft docked to the International Space Station on Tuesday morning, less than a day after lifting off from Florida.
As space missions go, this one was fairly routine, ferrying about 6,000 pounds (2,700 kg) of cargo and science experiments to the space station. Over the course of nearly a dozen years, this was the 31st cargo supply mission that SpaceX has flown for NASA to the orbiting laboratory.
However, there is one characteristic of this flight that may prove significant for NASA and the future of the space station. As early as Friday, NASA and SpaceX have scheduled a "reboost and attitude control demonstration," during which the Dragon spacecraft will use some of the thrusters at the base of the capsule. This is the first time the Dragon spacecraft will be used to move the space station.
Boeing strike ends after workers vote to accept “life-changing” wage increase
More than 33,000 Boeing workers reached a tentative agreement Monday night to end a weekslong strike that quickly became one of the costliest strikes in recent history—estimated to have cost the US economy more than $9.6 billion.
Through their unions, International Association of Machinists and Aerospace Workers (IAM) Districts 751 and W24, workers in Washington state, Oregon, and California had previously rejected two inadequate Boeing offers while the company lost hundreds of millions daily. Negotiations had stalled until US Secretary of Labor Julie Su stepped in, IAM said in a press release, helping to restart talks and get to a deal that 59 percent of workers could agree on.
Under the proposed deal, workers will receive a 43 percent wage increase over four years, as well as a $12,000 bonus they can choose to receive in their paycheck, as a 401(k) contribution, or a combination of both. Additionally, Boeing agreed to match 401(k) contributions up to 8 percent.
Metal Slug Tactics gives turn-based strategy a hyper-stylized shot of adrenaline
Metal Slug Tactics pushes hard on the boundaries of the vaunted run-and-gun arcade series. You can run when it's your character's turn, but it's a certain number of tiles. You can gun, but not rapidly, and only after considering the most optimal target and tools.
Is this just Into the Breach with classic-era SNK artwork and aesthetics? Kind of, and you're welcome.
As a true fan once wrote, Metal Slug games are about "crazy vehicles, amusing enemies and levels, and some of the best sprite art you'll ever see in gaming." To my eyes, you're getting a whole bunch of that in Tactics. Turn-based, grid-mapped tactics have a natural tendency to feel slow and to strip characters down to chess pieces that can do two or three things. Here, the characters and villains cannot stop rocking their bodies, the guns and explosions and scimitars go off big, and the exaggerated-just-enough artwork keeps everything locked into an action-movie mood.
Hundreds of code libraries posted to NPM try to install malware on dev machines
An ongoing attack is uploading hundreds of malicious packages to the open source node package manager (NPM) repository in an attempt to infect the devices of developers who rely on code libraries there, researchers said.
The malicious packages have names that are similar to legitimate ones for the Puppeteer and Bignum.js code libraries and for various libraries for working with cryptocurrency. The campaign, which was active at the time this post was going live on Ars, was reported by researchers from the security firm Phylum. The discovery comes on the heels of a similar campaign a few weeks ago targeting developers using forks of the Ethers.js library.
Beware of the supply chain attack“Out of necessity, malware authors have had to endeavor to find more novel ways to hide intent and to obfuscate remote servers under their control,” Phylum researchers wrote. “This is, once again, a persistent reminder that supply chain attacks are alive and well.”
Drugmaker shut down after black schmutz found in injectable weight-loss drug
The Food and Drug Administration is warning consumers not to use any drugs made by a compounding pharmacy in California after regulators realized the pharmacy was making drugs that need to be sterile—particularly injectable drugs—without using sterile ingredients or any sterilization steps.
The products made by the pharmacy, Fullerton Wellness LLC, in Ontario, California, include semaglutide, which is intended to mimic brand-name weight-loss and diabetes drugs Wegovy and Ozempic. Fullerton also made tirzepatide, which is intended to mimic weight-loss and diabetes drugs Zepbound and Mounjaro.
The FDA became aware of the problem after a patient submitted a complaint to the regulator that a vial of semaglutide from Fullerton Wellness had an unidentified "black particulate" floating in it. Semaglutide, like tirzepatide, is injected under the skin and is intended to be sterile.
Facebook, Nvidia push SCOTUS to limit “nuisance” investor suits after scandals
The Supreme Court will soon weigh two cases that could potentially make it harder for misled investors to sue Big Tech companies after major scandals.
One case involves one of the largest tech scandals of all time, the Facebook-Cambridge Analytica data breach. In 2019, Facebook agreed to pay "more than $5 billion in civil penalties to settle charges by the Federal Trade Commission (FTC) and the Securities and Exchange Commission (SEC) that it had misled its users and investors over the privacy and security of user data on its platform," a Supreme Court filing said.
The other case involves an allegation that Nvidia intentionally hid how much of its 2017–2018 GPU demand was due to a volatile cryptocurrency boom and not Nvidia's core gaming business—allegedly misleading investors ahead of a crypto crash. After the bust, Nvidia suddenly had to slash half a billion dollars from its earnings projection, and market experts later estimated that the firm had understated its crypto-related revenue by more than a billion. In 2022, Nvidia paid a $5.5 million SEC penalty over the inadequate disclosures that one SEC chief said "deprived investors of critical information to evaluate the company’s business in a key market."
New Zemeckis film used AI to de-age Tom Hanks and Robin Wright
On Friday, TriStar Pictures released Here, a $50 million Robert Zemeckis-directed film that used real time generative AI face transformation techniques to portray actors Tom Hanks and Robin Wright across a 60-year span, marking one of Hollywood's first full-length features built around AI-powered visual effects.
The film adapts a 2014 graphic novel set primarily in a New Jersey living room across multiple time periods. Rather than cast different actors for various ages, the production used AI to modify Hanks' and Wright's appearances throughout.
The de-aging technology comes from Metaphysic, a visual effects company that creates real time face swapping and aging effects. During filming, the crew watched two monitors simultaneously: one showing the actors' actual appearances and another displaying them at whatever age the scene required.