Tech
Spain is about to face the challenge of a “black start”
Since the Iberian Peninsula lost power in a massive blackout, grid operators are in the process of trying to restore power to millions of customers and businesses. As you might imagine, the process—termed a "black start"—is quite a bit more challenging than flicking on a switch. However, the challenge is made considerably more difficult because nearly everything about the system—from the management hardware that remotely controls the performance of the grid to the power plants themselves—needs power to operate.
Restarting the gridYou might think that a power plant could easily start generating power, but in reality, only a limited number of facilities have everything they need to handle a black start. That's because it takes power to make power. Facilities that boil water have lots of powered pumps and valves, coal plants need to pulverize the fuel and move it to where it's burned, etc. In most cases, black-start-rated plants have a diesel generator present to supply enough power to get the plant operating. These tend to be smaller plants, since they require proportionally smaller diesel generators.
The initial output of these black start facilities is then used to provide power to all the plants that need an external power source to operate. This has to be managed in a way that ensures that only other power plants get the first electrons to start moving on the grid, otherwise the normal demand would immediately overwhelm the limited number of small plants that are operating. Again, this has to be handled by facilities that need power in order to control the flow of energy across the grid. This is why managing the grid will never be as simple as "put the hardware on the Internet and control it remotely," given that the Internet also needs power to operate.
ChatGPT goes shopping with new product-browsing feature
On Thursday, OpenAI announced the addition of shopping features to ChatGPT Search. The new feature allows users to search for products and purchase them through merchant websites after being redirected from the ChatGPT interface. Product placement is not sponsored, and the update affects all users, regardless of whether they've signed in to an account.
Adam Fry, ChatGPT search product lead at OpenAI, showed Ars Technica's sister site Wired how the new shopping system works during a demonstration. Users researching products like espresso machines or office chairs receive recommendations based on their stated preferences, stored memories, and product reviews from around the web.
According to Wired, the shopping experience in ChatGPT resembles Google Shopping. When users click on a product image, the interface displays multiple retailers like Amazon and Walmart on the right side of the screen, with buttons to complete purchases. OpenAI is currently experimenting with categories that include electronics, fashion, home goods, and beauty products.
Backblaze responds to claims of “sham accounting,” customer backups at risk
Backblaze is dismissing allegations from a short seller that it engaged in “sham accounting” that could put the cloud storage and backup solution provider and its customers' backups in jeopardy.
On April 24, Morpheus Research posted a lengthy report accusing the San Mateo, California-based firm of practicing “sham accounting and brazen insider dumping.” The claims largely stem from a pair of lawsuits filed against Backblaze by former employees Huey Hall [PDF] and James Kisner [PDF] in October. Per LinkedIn profiles, Hall was Backblaze’s head of finance from March 2020 to February 2024, and Kisner was Backblaze’s VP of investor relations and financial planning from May 2021 to November 2023.
As Morpheus wrote, the lawsuits accuse Backblaze’s founders of participating in “an aggressive trading plan to sell 10,000 shares a day, along with other potential sales from early employee holders, against ‘all external capital markets advice.’” The plan allegedly started in April 2022, after the IPO lockup period expired and despite advisor warnings, including one from a capital markets consultant that such a trading plan likely breached Backblaze’s fiduciary duties.
“You wouldn’t steal a car” anti-piracy campaign may have used pirated fonts
You wouldn't steal a car, right? So you shouldn't pirate a movie, either.
That was the gist of the infamous "You Wouldn't Steal a Car" anti-piracy campaign from the Motion Picture Association of America during the mid-2000s. But questions are now being asked about just how carefully the MPAA followed its own anti-piracy principles when designing the campaign. Specifically: Did the MPAA rip off a key font?
The answer to that question is, like many matters involving typefaces, fonts, and copyright, somewhat complicated.
Is The Elder Scrolls IV: Oblivion still fun for a first-time player in 2025?
For many gamers, this week's release of The Elder Scrolls IV: Oblivion Remastered has provided a good excuse to revisit a well-remembered RPG classic from years past. For others, it's provided a good excuse to catch up on a well-regarded game that they haven't gotten around to playing in the nearly two decades since its release.
I'm in that second group. While I've played a fair amount of Skyrim (on platforms ranging from the Xbox 360 to VR headsets) and Starfield, I've never taken the time to go back to the earlier Bethesda Game Studios RPGs. As such, my impressions of Oblivion before this Remaster have been guided by old critical reactions and the many memes calling attention to the game's somewhat janky engine.
Playing through the first few hours of Oblivion Remastered this week, without the benefit of nostalgia, I can definitely see why Oblivion made such an impact on RPG fans in 2006. But I also see all the ways that the game can feel a bit dated after nearly two decades of advancements in genre design.
Weapons of war are launching from Cape Canaveral for the first time since 1988
The US military launched a long-range hypersonic missile Friday morning from Cape Canaveral Space Force Station in Florida on a test flight that, if successful, could pave the way for the weapon's operational deployment later this year.
The Army's Long-Range Hypersonic Weapon fired out of a canister on a road-mobile trailer shortly after sunrise on Florida's Space Coast, then headed east over the Atlantic Ocean propelled by a solid-fueled rocket booster. Local residents shared images of the launch on social media.
Designed for conventional munitions, the new missile is poised to become the first ground-based hypersonic weapon fielded by the US military. Russia has used hypersonic missiles in combat against Ukraine. China has "the world's leading hypersonic missile arsenal," according to a recent Pentagon report on Chinese military power. After a successful test flight from Cape Canaveral last year, the long-range hypersonic weapon (LRHW)—officially named "Dark Eagle" by the Army earlier this week—will give the United States the ability to strike targets with little or no warning.
With over 900 US measles cases so far this year, things are looking bleak
As of Friday, April 25, the US has confirmed over 900 measles cases since the start of the year. The cases are across 29 states, but most are in or near Texas, where a massive outbreak continues to mushroom in close-knit, undervaccinated communities.
On April 24, the Centers for Disease Control and Prevention had tallied 884 cases across the country. Today, the Texas health department updated its outbreak total, adding 22 cases to its last count from Tuesday. That brings the national total to at least 906 confirmed cases. Most of the cases are in unvaccinated children and teens.
Overall, Texas has identified 664 cases since late January. Of those, 64 patients have been hospitalized, and two unvaccinated school-aged children with no underlying medical conditions have died of the disease. An unvaccinated adult in New Mexico also died from the infection, bringing this year's measles death toll to three.
Mike Lindell’s lawyers used AI to write brief—judge finds nearly 30 mistakes
A lawyer representing MyPillow and its CEO Mike Lindell in a defamation case admitted using artificial intelligence in a brief that has nearly 30 defective citations, including misquotes and citations to fictional cases, a federal judge said.
"[T]he Court identified nearly thirty defective citations in the Opposition. These defects include but are not limited to misquotes of cited cases; misrepresentations of principles of law associated with cited cases, including discussions of legal principles that simply do not appear within such decisions; misstatements regarding whether case law originated from a binding authority such as the United States Court of Appeals for the Tenth Circuit; misattributions of case law to this District; and most egregiously, citation of cases that do not exist," US District Judge Nina Wang wrote in an order to show cause Wednesday.
Wang ordered attorneys Christopher Kachouroff and Jennifer DeMaster to show cause as to why the court should not sanction the defendants, law firm, and individual attorneys. Kachouroff and DeMaster also have to explain why they should not be referred to disciplinary proceedings for violations of the rules of professional conduct.
New study shows why simulated reasoning AI models don’t yet live up to their billing
There's a curious contradiction at the heart of today's most capable AI models that purport to "reason": They can solve routine math problems with accuracy, yet when faced with formulating deeper mathematical proofs found in competition-level challenges, they often fail.
That's the finding of eye-opening preprint research into simulated reasoning (SR) models, initially listed in March and updated in April, that mostly fell under the news radar. The research serves as an instructive case study on the mathematical limitations of SR models, despite sometimes grandiose marketing claims from AI vendors.
What sets simulated reasoning models apart from traditional large language models (LLMs) is that they have been trained to output a step-by-step "thinking" process (often called "chain-of-thought") to solve problems. Note that "simulated" in this case doesn't mean that the models do not reason at all but rather that they do not necessarily reason using the same techniques as humans. That distinction is important because human reasoning itself is difficult to define.
Looming tariffs are making it extra hard to be a tech geek
If I knew how much I’d end up loving my Logitech mice, I would’ve taken better care of them from the start. The MX Master 3S and Lift are my favorite mice for productivity, but their rubber coating can get grimy quickly. My white MX Master 3S looks especially shameful atop my desk, so I’ve been considering purchasing a replacement for a while.
Overturning my plans, though, Logitech recently raised prices across 51 percent of its portfolio, as detailed by YouTube channel Cameron Doughterty Tech. The firm has raised prices by as much as 25 percent.
The MX Master 3S I just mentioned is now $120, which is $20 more than before. That 20 percent increase makes it even harder to justify a new mouse, which I already considered a luxury purchase.
New study: There are lots of icy super-Earths
What does the "typical" exosolar system look like? We know it's not likely to look like our own Solar System, given that our familiar planets don't include entire classes of planets (Hot Jupiters! Mini-Neptunes!) that we've found elsewhere. And our discovery methods have been heavily biased toward planets that orbit close to their host star, so we don't really have a strong sense of what might be lurking in more distant orbits.
A new study released on Thursday describes a search for what are called "microlensing" events, where a planet acts as a gravitational lens that magnifies the star it's orbiting, causing it to brighten briefly. These events are difficult to capture, but can potentially indicate the presence of planets in more distant orbits. The researchers behind the new work find indications that there's a significant population of rocky super-Earths that are traveling in orbits similar to that of Jupiter and Saturn.
Lenses go microThe two primary methods we've used to discover exoplanets are called transit and radial velocity. In the transit method, we simply watch the star for dips in the light it sends to Earth, which can be an indication of a planet orbiting in a way that it eclipses a small fraction of the star. For radial velocity, we look for red- or blue-shifts in the light received from the star, caused by a planet tugging the star in different directions as it orbits.
Netflix introduces a new kind of subtitles for the non-hearing impaired
Multiple studies and investigations have found that about half of American households watch TV and movies with subtitles on, but only a relatively small portion of those include someone with a hearing disability. That's because of the trouble many people have understanding dialogue in modern viewing situations, and Netflix has now introduced a subtitles option to help.
The closed captioning we've all been using for years includes not only the words the people on-screen are saying, but additional information needed by the hard of hearing, including character names, music cues ("dramatic music intensifies") and sound effects ("loud explosion").
For those who just wanted to make sure they didn't miss a word here and there, the frequent descriptions of sound effects and music could be distracting. This new format omits those extras, just including the spoken words and nothing else—even in the same language as the spoken dialogue.
FBI offers $10 million for information about Salt Typhoon members
The FBI is offering $10 million for information about the China-state hacking group tracked as Salt Typhoon and its intrusion last year into sensitive networks belonging to multiple US telecommunications companies.
Salt Typhoon is one of a half-dozen or more hacking groups that work on behalf of the People’s Republic of China. Intelligence agencies and private security companies have concluded the group has been behind a string of espionage attacks designed to collect vital information, in part for use in any military conflicts that may arise in the future.
A broad and significant cyber campaignThe agency on Thursday published a statement offering up to $10 million, relocation assistance, and other compensation for information about Salt Typhoon. The announcement specifically sought information about the specific members of Salt Typhoon and the group's compromise of multiple US telecommunications companies last year.
Thermal imaging shows xAI lied about supercomputer pollution, group says
Elon Musk raced to build Colossus, the world's largest supercomputer, in Memphis, Tennessee. He bragged that construction only took 122 days and expected that his biggest AI rivals would struggle to catch up.
To leap ahead, his firm xAI "removed whatever was unnecessary" to complete the build, questioning "everything" that might delay operations and taking the timeline "into our own hands," xAI's website said.
Now, xAI is facing calls to shut down gas turbines that power the supercomputer, as Memphis residents in historically Black communities—which have long suffered from industrial pollution causing poor air quality and decreasing life expectancy—allege that xAI has been secretly running more turbines than the local government knows, without permits.
Google announces 1st and 2nd gen Nest Thermostats will lose support in October 2025
Google's oldest smart thermostats have an expiration date. The company has announced that the first and second generation Nest Learning Thermostats will lose support in October 2025, disabling most of the connected features. Google is offering some compensation for anyone still using these devices, but there's no Google upgrade for European users. Google is also discontinuing its only European model, and it's not planning to release another.
Both affected North American thermostats predate Google's ownership of the company, which it acquired in 2014. Nest released the original Learning Thermostat to almost universal praise in 2011, with the sequel arriving a year later. Google's second-gen Euro unit launched in 2014. Since launch, all these devices have been getting regular software updates and have migrated across multiple app redesigns. However, all good things must come to an end.
As Google points out, these products have had a long life, and they're not being rendered totally inoperable. Come October 25, 2025, these devices will no longer receive software updates or connect to Google's cloud services. That means you won't be able to control them from the Google Home app or via Assistant (or more likely Gemini by that point). The devices will still work as a regular dumb thermostat to control temperature, and scheduling will remain accessible from the thermostat's screen.
Silicon Valley billionaires literally want the impossible
It's long been the stuff of science fiction: humans achieving immortality by uploading their consciousness into a silicon virtual paradise, ruled over by a benevolent super-intelligent AI. Or maybe one dreams of leaving a dying Earth to colonize Mars or other distant planets. It's a tantalizing visionary future that has been embraced by tech billionaires in particular. But is that future truly the utopian ideal, or something potentially darker? And are those goals even scientifically feasible?
These are the kinds of questions astrophysicist and science journalist Adam Becker poses in his new book, More Everything Forever: AI Overlords, Space Empires, and Silicon Valley's Crusade to Control the Fate of Humanity. Becker's widely praised first book, What Is Real?, focused on competing interpretations of quantum mechanics and questioned the long dominance of the so-called Copenhagen interpretation championed by Niels Bohr, among other luminaries. This time around, he's tackling Silicon Valley's far-reaching ideas about the future, which have moved out of online subcultures and into mainstream culture, including our political discourse.
"It seemed like it was only going to become more relevant and someone needed to speak out about it, and I didn't see enough people connecting the dots in a way that looked right to me," Becker told Ars. "One current critique of Silicon Valley is that they moved fast and broke democracy and institutional norms. That's true. Another is that they're contemptuous of government, and I think that's true, too. But there wasn't much critique of their visions of the future, maybe because not enough people realized they meant it. Even among Silicon Valley critics, there was this idea that at the very least, you could trust that the statements they made about science and technology were true because they were experts in science and technology. That's not the case."
Microsoft rolls Windows Recall out to the public nearly a year after announcing it
Nearly a year after announcing the feature, Microsoft is finally ready to roll the controversial Windows Recall feature out to the general public, the company announced today on its Windows Experience Blog.
Only available on Copilot+ PCs, a subset of Windows 11 systems sold within the last year or so, Recall takes continuous screenshots of everything you do on your PC, saving them, scraping text from them, and saving it all in a searchable database. This obviously has major security and privacy implications—anyone who can get access to your Recall database can see nearly everything you've done on your PC—which is why Microsoft's initial rollout attempt was such a mess.
Recall's long road to release involved a rushed initial almost-launch, harsh criticism of its (then mostly nonexistent) security protections, multiple delays, a major under-the-hood overhaul, and five months of testing in Microsoft's Windows Insider beta program. Microsoft signaled that Recall was nearly ready for release two weeks ago when it came to the near-final Release Preview channel.
Report: TP-Link’s low router prices probed in criminal antitrust investigation
Router maker TP-Link is facing a criminal antitrust investigation into whether it engaged in predatory pricing, Bloomberg reported yesterday. TP-Link was already facing government scrutiny over its ties to China.
"The US is conducting a criminal antitrust investigation into pricing strategies by TP-Link Systems Inc., a California-based router maker with links to China whose equipment now dominates the American market, according to people familiar with the matter," Bloomberg wrote. "Beyond pricing, a focus of the inquiry is also whether the company's growing US market share represents a threat to national security... The scrutiny began in late 2024 under the Biden administration and has continued under President Donald Trump."
Justice Department prosecutors are investigating whether TP-Link engaged in a predatory pricing scheme that "involves selling goods below cost in order to gain market share before raising prices once competitors have either been hobbled or eliminated," the report said.
A grim signal: Atmospheric CO2 soared in 2024
This article originally appeared on Inside Climate News, a nonprofit, non-partisan news organization that covers climate, energy, and the environment. Sign up for their newsletter here.
The latest anomaly in the climate system that can’t be fully explained by researchers is a record annual jump in the global mean concentration of carbon dioxide in the atmosphere measured in 2024.
The concentration, measured in parts per million, has been increasing rapidly since human civilizations started burning coal and oil in the mid-1800s from the pre-industrial level of 280 ppm.
“We’re in a race with China”—DOT eases autonomous car rules
The US Department of Transportation issued revised rules for autonomous and partially automated vehicles on Thursday. Despite fears that the Trump administration would roll back safety regulations as it has for air and water standards, crashes involving autonomous or partially automated vehicles must still be reported to the government. And now, domestic autonomous vehicle developers will be able to benefit from exemptions previously only offered to foreign companies.
"This administration understands that we're in a race with China to out-innovate, and the stakes couldn’t be higher," said US Transportation Secretary Sean Duffy in a statement. "As part of DOT's innovation agenda, our new framework will slash red tape and move us closer to a single national standard that spurs innovation and prioritizes safety," Duffy said.
The National Highway Traffic Safety Administration is keeping its Standing General Order, which requires manufacturers of autonomous or partially automated vehicles to report crashes that occur with such systems on public roads. Crashes using either autonomous driving systems or a partially automated system like GM's Super Cruise or Tesla's Autopilot must be reported within 10 days if anyone involved was killed or taken to hospital, if a vulnerable road user was hit, if the airbags deployed, or if the vehicle had to be towed away from the crash.
