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How accurate are wearable fitness trackers? Less than you might think

How accurate are wearable fitness trackers? Less than you might think

Enlarge (credit: Corey Gaskin)

Back in 2010, Gary Wolf, then the editor of Wired magazine, delivered a TED talk in Cannes called “the quantified self.” It was about what he termed a “new fad” among tech enthusiasts. These early adopters were using gadgets to monitor everything from their physiological data to their mood and even the number of nappies their children used.

Wolf acknowledged that these people were outliers—tech geeks fascinated by data—but their behavior has since permeated mainstream culture.

From the smartwatches that track our steps and heart rate, to the fitness bands that log sleep patterns and calories burned, these gadgets are now ubiquitous. Their popularity is emblematic of a modern obsession with quantification—the idea that if something isn’t logged, it doesn’t count.

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AMD signs $4.9 billion deal to challenge Nvidia’s AI infrastructure lead

Visitors walk past the AMD booth at the 2024 Mobile World Congress

Enlarge (credit: CFOTO/Future Publishing via Getty Images)

AMD has agreed to buy artificial intelligence infrastructure group ZT Systems in a $4.9 billion cash and stock transaction, extending a run of AI investments by the chip company as it seeks to challenge market-leader Nvidia.

The California-based group said the acquisition would help accelerate the adoption of its Instinct line of AI data center chips, which compete with Nvidia’s popular graphics processing units (GPUs).

ZT Systems, a private company founded three decades ago, builds custom computing infrastructure for the biggest AI “hyperscalers.” While the company does not disclose its customers, the hyperscalers include the likes of Microsoft, Meta, and Amazon.

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CrowdStrike claps back at Delta, says airline rejected offers for help

LOS ANGELES, CALIFORNIA - JULY 23: Travelers from France wait on their delayed flight on the check-in floor of the Delta Air Lines terminal at Los Angeles International Airport (LAX) on July 23, 2024 in Los Angeles, California.

Enlarge / LOS ANGELES, CALIFORNIA - JULY 23: Travelers from France wait on their delayed flight on the check-in floor of the Delta Air Lines terminal at Los Angeles International Airport (LAX) on July 23, 2024 in Los Angeles, California. (credit: Mario Tama/Getty Images)

CrowdStrike has hit back at Delta Air Lines’ threat of litigation against the cyber security company over a botched software update that grounded thousands of flights, denying it was responsible for the carrier’s own IT decisions and days-long disruption.

In a letter on Sunday, lawyers for CrowdStrike argued that the US carrier had created a “misleading narrative” that the cyber security firm was “grossly negligent” in an incident that the US airline has said will cost it $500 million.

Delta took days longer than its rivals to recover when CrowdStrike’s update brought down millions of Windows computers around the world last month. The airline has alerted the cyber security company that it plans to seek damages for the disruptions and hired litigation firm Boies Schiller Flexner.

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Data centers demand a massive amount of energy. Here’s how some states are tackling the industry’s impact.

A Google data center in Douglas County, Georgia.

A Google data center in Douglas County, Georgia. (credit: Google)

This article was produced for ProPublica’s Local Reporting Network in partnership with The Seattle Times. Sign up for Dispatches to get stories like this one as soon as they are published.

When lawmakers in Washington set out to expand a lucrative tax break for the state’s data center industry in 2022, they included what some considered an essential provision: a study of the energy-hungry industry’s impact on the state’s electrical grid.

Gov. Jay Inslee vetoed that provision but let the tax break expansion go forward. As The Seattle Times and ProPublica recently reported, the industry has continued to grow and now threatens Washington’s effort to eliminate carbon emissions from electricity generation.

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Memo to the Supreme Court: Clean Air Act targeted CO2 as climate pollutant, study says

The exterior of the US Supreme Court building during daytime.

Enlarge (credit: Getty Images | Rudy Sulgan)

This article originally appeared on Inside Climate News, a nonprofit, independent news organization that covers climate, energy, and the environment. It is republished with permission. Sign up for its newsletter here

Among the many obstacles to enacting federal limits on climate pollution, none has been more daunting than the Supreme Court. That is where the Obama administration’s efforts to regulate power plant emissions met their demise and where the Biden administration’s attempts will no doubt land.

A forthcoming study seeks to inform how courts consider challenges to these regulations by establishing once and for all that the lawmakers who shaped the Clean Air Act in 1970 knew scientists considered carbon dioxide an air pollutant, and that these elected officials were intent on limiting its emissions.

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US probes Nvidia’s acquisition of Israeli AI startup

US probes Nvidia’s acquisition of Israeli AI startup

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The US Department of Justice is investigating Nvidia’s acquisition of Run:ai, an Israeli artificial intelligence startup, for potential antitrust violations, said a person familiar with discussions the government agency has had with third parties.

The DoJ has asked market participants about the competitive impact of the transaction, which Nvidia announced in April. The price was not disclosed but a report from TechCrunch estimated it at $700 million.

The scope of the probe remains unclear, the person said. But the DoJ has inquired about matters including whether the deal could quash emerging competition in the up-and-coming sector and entrench Nvidia’s dominant market position.

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Is having a pet good for you? The fuzzy science of pet ownership

A picture of a bull terrier on a park bench

Enlarge (credit: Azaliya via Getty)

For more than a decade, in blog posts and scientific papers and public talks, the psychologist Hal Herzog has questioned whether owning pets makes people happier and healthier.

It is a lonely quest, convincing people that puppies and kittens may not actually be terrific for their physical and mental health. “When I talk to people about this,” Herzog recently said, “nobody believes me.” A prominent professor at a major public university once described him as “a super curmudgeon” who is, in effect, “trying to prove that apple pie causes cancer.”

As a teenager in New Jersey in the 1960s, Herzog kept dogs and cats, as well as an iguana, a duck, and a boa constrictor named Boa. Now a professor emeritus at Western Carolina University, he insists he’s not out to smear anyone’s furry friends. In a blog post questioning the so-called pet effect, in 2012, Herzog included a photo of his cat, Tilly. “She makes my life better,” he wrote. “Please Don’t Blame The Messenger!”

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Russia and China are using OpenAI tools to spread disinformation

OpenAI said it was committed to uncovering disinformation campaigns and was building its own AI-powered tools to make detection and analysis "more effective."

Enlarge / OpenAI said it was committed to uncovering disinformation campaigns and was building its own AI-powered tools to make detection and analysis "more effective." (credit: FT montage/NurPhoto via Getty Images)

OpenAI has revealed operations linked to Russia, China, Iran and Israel have been using its artificial intelligence tools to create and spread disinformation, as technology becomes a powerful weapon in information warfare in an election-heavy year.

The San Francisco-based maker of the ChatGPT chatbot said in a report on Thursday that five covert influence operations had used its AI models to generate text and images at a high volume, with fewer language errors than previously, as well as to generate comments or replies to their own posts. OpenAI’s policies prohibit the use of its models to deceive or mislead others.

The content focused on issues “including Russia’s invasion of Ukraine, the conflict in Gaza, the Indian elections, politics in Europe and the United States, and criticisms of the Chinese government by Chinese dissidents and foreign governments,” OpenAI said in the report.

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New research shows gas stove emissions contribute to 19,000 deaths annually

New research shows gas stove emissions contribute to 19,000 deaths annually

Enlarge (credit: Géza Bálint Ujvárosi / EyeEm via Getty)

Ruth Ann Norton used to look forward to seeing the blue flame that danced on the burners of her gas stove. At one time, she says, she would have sworn that preparing meals with the appliance actually made her a better cook.

But then she started learning about the toxic gasses, including carbon monoxide, formaldehyde and other harmful pollutants that are emitted by stoves into the air, even when they’re turned off.

“I’m a person who grew up cooking, and love that blue flame,” said Norton, who leads the environmental advocacy group known as the Green & Healthy Homes Initiative. “But people fear what they don’t know. And what people need to understand really strongly is the subtle and profound impact that this is having—on neurological health, on respiratory health, on reproductive health.”

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What happened to OpenAI’s long-term AI risk team?

Od: WIRED
A glowing OpenAI logo on a blue background.

Enlarge (credit: Benj Edwards)

In July last year, OpenAI announced the formation of a new research team that would prepare for the advent of supersmart artificial intelligence capable of outwitting and overpowering its creators. Ilya Sutskever, OpenAI’s chief scientist and one of the company’s co-founders, was named as the co-lead of this new team. OpenAI said the team would receive 20 percent of its computing power.

Now OpenAI’s “superalignment team” is no more, the company confirms. That comes after the departures of several researchers involved, Tuesday’s news that Sutskever was leaving the company, and the resignation of the team’s other co-lead. The group’s work will be absorbed into OpenAI’s other research efforts.

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Sony Music opts out of AI training for its entire catalog

picture of Beyonce who is a Sony artist

Enlarge / The Sony Music letter expressly prohibits artificial intelligence developers from using its music — which includes artists such as Beyoncé. (credit: Kevin Mazur/WireImage for Parkwood via Getty Images)

Sony Music is sending warning letters to more than 700 artificial intelligence developers and music streaming services globally in the latest salvo in the music industry’s battle against tech groups ripping off artists.

The Sony Music letter, which has been seen by the Financial Times, expressly prohibits AI developers from using its music—which includes artists such as Harry Styles, Adele and Beyoncé—and opts out of any text and data mining of any of its content for any purposes such as training, developing or commercializing any AI system.

Sony Music is sending the letter to companies developing AI systems including OpenAI, Microsoft, Google, Suno, and Udio, according to those close to the group.

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Is dark matter’s main rival theory dead?

Galaxy rotation has long perplexed scientists.

Enlarge / Galaxy rotation has long perplexed scientists. (credit: NASA/James Webb Telescope)

One of the biggest mysteries in astrophysics today is that the forces in galaxies do not seem to add up. Galaxies rotate much faster than predicted by applying Newton’s law of gravity to their visible matter, despite those laws working well everywhere in the Solar System.

To prevent galaxies from flying apart, some additional gravity is needed. This is why the idea of an invisible substance called dark matter was first proposed. But nobody has ever seen the stuff. And there are no particles in the hugely successful Standard Model of particle physics that could be the dark matter—it must be something quite exotic.

This has led to the rival idea that the galactic discrepancies are caused instead by a breakdown of Newton’s laws. The most successful such idea is known as Milgromian dynamics or Mond, proposed by Israeli physicist Mordehai Milgrom in 1982. But our recent research shows this theory is in trouble.

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Automakers hedge their bets with plug-in hybrids as EV sales slow

Automakers hedge their bets with plug-in hybrids as EV sales slow

Enlarge (credit: Honda)

Global carmakers are stepping up their investment in hybrid technologies as consumers’ growing wariness over fully electric vehicles forces the industry to rapidly shift gear, according to top executives.

A combination of still high interest rates and concern over inadequate charging infrastructure has chilled buyers’ enthusiasm for fully electric cars, prompting a rebound in sales of hybrid vehicles that most of the industry had long regarded as nothing more than a stop-gap.

Tapping the resurgent demand for hybrids was a priority, executives from General Motors, Nissan, Hyundai, Volkswagen and Ford told the Financial Times’ Future of the Car Summit this week.

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The wasps that tamed viruses

Parasitoid wasp

Enlarge / Xorides praecatorius is a parasitoid wasp. (credit: TorriPhoto via Getty)

If you puncture the ovary of a wasp called Microplitis demolitor, viruses squirt out in vast quantities, shimmering like iridescent blue toothpaste. “It’s very beautiful, and just amazing that there’s so much virus made in there,” says Gaelen Burke, an entomologist at the University of Georgia.

M. demolitor  is a parasite that lays its eggs in caterpillars, and the particles in its ovaries are “domesticated” viruses that have been tuned to persist harmlessly in wasps and serve their purposes. The virus particles are injected into the caterpillar through the wasp’s stinger, along with the wasp’s own eggs. The viruses then dump their contents into the caterpillar’s cells, delivering genes that are unlike those in a normal virus. Those genes suppress the caterpillar’s immune system and control its development, turning it into a harmless nursery for the wasp’s young.

The insect world is full of species of parasitic wasps that spend their infancy eating other insects alive. And for reasons that scientists don’t fully understand, they have repeatedly adopted and tamed wild, disease-causing viruses and turned them into biological weapons. Half a dozen examples already are described, and new research hints at many more.

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Over 100 far-right militias are coordinating on Facebook

Od: WIRED
Far-right extremists

Enlarge (credit: NurPhoto via Getty)

“Join Your Local Militia or III% Patriot Group,” a post urged the more than 650 members of a Facebook group called the Free American Army. Accompanied by the logo for the Three Percenters militia network and an image of a man in tactical gear holding a long rifle, the post continues: “Now more than ever. Support the American militia page.”

Other content and messaging in the group is similar. And despite the fact that Facebook bans paramilitary organizing and deemed the Three Percenters an “armed militia group" on its 2021 Dangerous Individuals and Organizations List, the post and group remained up until WIRED contacted Meta for comment about its existence.

Free American Army is just one of around 200 similar Facebook groups and profiles, most of which are still live, that anti-government and far-right extremists are using to coordinate local militia activity around the country.

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Storing energy with compressed air is about to have its moment of truth

rendering of energy plant

Enlarge / A rendering of Silver City Energy Centre, a compressed air energy storage plant to be built by Hydrostor in Broken Hill, New South Wales, Australia. (credit: Hydrostor)

The need for long-duration energy storage, which helps to fill the longest gaps when wind and solar are not producing enough electricity to meet demand, is as clear as ever. Several technologies could help to meet this need.

But which approaches could be viable on a commercial scale?

Toronto-based Hydrostor Inc. is one of the businesses developing long-duration energy storage that has moved beyond lab scale and is now focusing on building big things. The company makes systems that store energy underground in the form of compressed air, which can be released to produce electricity for eight hours or longer.

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TikTok ready to “move to the courts” to prevent ban in US

A smartphone against a colorful, out-of-focus background.

Enlarge (credit: Sheldon Coope | SOPA Images | LightRocket | Getty Images)

TikTok is gearing up for a long legal battle to fight legislation in the US that threatens to ban the app in its largest market if its Chinese owner, ByteDance, refuses to sell the viral video platform.

The US House of Representatives on Saturday passed a package of national security bills that included legislation that would result in TikTok being banned in the country if Chinese parent company ByteDance does not divest the app.

Michael Beckerman, TikTok’s public policy head in the US, told staff in response that if the bill became law, the company would “move to the courts for a legal challenge.”

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The fungi in our guts can make cases of COVID worse

Od: WIRED
Microscopic image of blue bulbs on stalks against violet background.

Enlarge / Computer illustration of Candida fungi. (credit: Kateryna Kon | Science Photo Library | Getty)

Fungi are an indispensable part of your microbiome, keeping the body’s host of microorganisms healthy as part of a system of checks and balances. But when you’re hit by an infection, fungi can be thrown out of equilibrium with other organisms inside you, leading to a more severe infection and other symptoms of illness.

For this reason, the pandemic immediately set off alarms for Iliyan Iliev, an immunologist at Weill Cornell Medical School. “We were thinking, the first thing that’s going to happen is people will start getting fungal co-infections,” he says. With the microbiome unbalanced, fungi might start running riot inside COVID patients, Iliev reasoned. His fears were soon realized.

In research published in Nature Immunology, he and his team discovered that in patients with severe COVID, certain strains of gut fungi—knocked off-kilter by the virus—set off a prolonged immune response that could last long after the initial infection. This response potentially led to some of the respiratory symptoms experienced by these patients. These results, Iliev says, point to the critical role of the gut microbiome in the human immune response and could lead to better disease treatments down the line.

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The GMO tooth microbe that is supposed to prevent cavities

It's a tooth

Enlarge (credit: zhangshuang via Getty)

About seven years ago, Aaron Silverbook and his then-girlfriend, a biologist, were perusing old scientific literature online. “A romantic evening,” joked Silverbook. That night, he came across a study from 2000 that surprised him. Scientists had genetically engineered an oral bacterium that they said could possibly prevent tooth decay: “I read it and sort of boggled at it and said, ‘Wow, this is a cavity vaccine. Why don't we have this?’”

So, Silverbook tracked down the primary author, Jeffrey Hillman, a now-retired oral biologist formerly at the University of Florida, to see if he could pick up the torch.

In 2023, Silverbook founded Lantern Bioworks, which made a deal with Oragenics, the company Hillman co-founded and that owned the technology, for the materials. Lantern Bioworks then launched the genetically engineered bacteria under the name Lumina Probiotic. “I didn’t expect it to happen in my lifetime,” said Hillman.

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Password crackdown leads to more income for Netflix

screen with netflix login

Enlarge (credit: Bloomberg)

Netflix’s crackdown on password sharing helped the streaming service blow past Wall Street’s earnings forecasts, but its shares fell after it said it planned to stop regularly disclosing its subscriber numbers.

The company’s operating income surged 54 percent in the first quarter as it added 9.3 million subscribers worldwide, proving that the efforts to reduce password sharing it launched last year have had more lasting benefits than some investors expected.

However, Netflix said on Thursday that from next year it would stop revealing its total number of subscribers, a metric that has been a crucial benchmark for investors in the streaming era.

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Researchers create AI worms that can spread from one system to another

Od: WIRED
Researchers create AI worms that can spread from one system to another

Enlarge (credit: Jacqui VanLiew; Getty Images)

As generative AI systems like OpenAI's ChatGPT and Google's Gemini become more advanced, they are increasingly being put to work. Startups and tech companies are building AI agents and ecosystems on top of the systems that can complete boring chores for you: think automatically making calendar bookings and potentially buying products. But as the tools are given more freedom, it also increases the potential ways they can be attacked.

Now, in a demonstration of the risks of connected, autonomous AI ecosystems, a group of researchers has created one of what they claim are the first generative AI worms—which can spread from one system to another, potentially stealing data or deploying malware in the process. “It basically means that now you have the ability to conduct or to perform a new kind of cyberattack that hasn't been seen before,” says Ben Nassi, a Cornell Tech researcher behind the research.

Nassi, along with fellow researchers Stav Cohen and Ron Bitton, created the worm, dubbed Morris II, as a nod to the original Morris computer worm that caused chaos across the Internet in 1988. In a research paper and website shared exclusively with WIRED, the researchers show how the AI worm can attack a generative AI email assistant to steal data from emails and send spam messages—breaking some security protections in ChatGPT and Gemini in the process.

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Elon Musk sues OpenAI and Sam Altman, accusing them of chasing profits

Elon Musk sues OpenAI and Sam Altman, accusing them of chasing profits

Enlarge (credit: Anadolu Agency / Contributor | Anadolu)

Elon Musk has sued OpenAI and its chief executive Sam Altman for breach of contract, alleging they have compromised the start-up’s original mission of building artificial intelligence systems for the benefit of humanity.

In the lawsuit, filed to a San Francisco court on Thursday, Musk’s lawyers wrote that OpenAI’s multibillion-dollar alliance with Microsoft had broken an agreement to make a major breakthrough in AI “freely available to the public.”

Instead, the lawsuit said, OpenAI was working on “proprietary technology to maximize profits for literally the largest company in the world.”

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Big Tech is extremely unimpressed by Apple’s EU App Store changes

Big Tech is extremely unimpressed by Apple’s EU App Store changes

(credit: Apple)

Apple is coming under fire from rivals Meta and Microsoft who say its plans to open up its mobile software to comply with a landmark EU law fail to go far enough, as the iPhone maker faces unprecedented regulatory challenges from Brussels over the coming month.

EU regulators, who are preparing to fine the tech giant 500 million euros in March over allegedly favoring its music-streaming app against competitors like Spotify, are also being lobbied to reject Apple’s proposals to satisfy the bloc’s Digital Markets Act.

The growing backlash against Apple comes as it is forced to make some of the biggest changes to its business model in years, following concerns over the dominance of its App Store, which forms a large share of the company’s $85 billion-a-year services business.

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LockBit ransomware group taken down in multinational operation

A ransom message on a monochrome computer screen.

Enlarge (credit: Rob Engelaar | Getty Images)

Law enforcement agencies including the FBI and the UK’s National Crime Agency have dealt a crippling blow to LockBit, one of the world’s most prolific cybercrime gangs, whose victims include Royal Mail and Boeing.

The 11 international agencies behind “Operation Cronos” said on Tuesday that the ransomware group—many of whose members are based in Russia—had been “locked out” of its own systems. Several of the group’s key members have been arrested, indicted, or identified and its core technology seized, including hacking tools and its “dark web” homepage.

Graeme Biggar, NCA director-general, said law enforcement officers had “successfully infiltrated and fundamentally disrupted LockBit.”

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