
Asking ChatGPT’s new Health system to evaluate your cardiac health based on Apple Watch data might not give a useful answer. CC-licensed photo by Forth With Life on Flickr.
A selection of 9 links for you. Arresting. I’m @charlesarthur on Twitter. On Threads: charles_arthur. On Mastodon: https://newsie.social/@charlesarthur. On Bluesky: @charlesarthur.bsky.social. Observations and links welcome.
The Windows PC is dying, thanks to cloud-based services and AI • Computerworld
Steven Vaughan-Nichols:
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For years, I’ve been watching the slow evolution of classic Windows PCs into cloud-based Windows and Office services. Sure, you can still buy a PC with Windows on it, but you’re not really “buying” Windows as much as renting it.
Windows cloud PCs have gone from Microsoft’s side project to the centerpiece of its post‑Windows‑10 strategy. But the story in 2026 is less “death of the PC” and more “merger of PC, cloud, and AI under Microsoft’s terms.” Today, the most interesting question is not whether Windows moves to the cloud, but how much local control users are willing to surrender in exchange for AI‑infused desktops.
For the longest time, Microsoft had planned on the Windows 365 Cloud PC to shift users from a PC‑centric world to Desktop‑as‑a‑Service, with Windows 11 acting as the on‑ramp. Microsoft’s own internal slideware later made that explicit: the plan is to “move Windows 11 increasingly to the cloud… to enable a full Windows operating system streamed from the cloud to any device.” What started as the Business and Enterprise editions of Windows 365, running on Azure with per‑user monthly pricing in the $30-to-$60 range, has since been productized and polished as if it were the “real” Windows roadmap rather than a side hustle.
Other harbingers included Windows 365 Boot, which bypassed the local operating system entirely and dropped you straight into a personalized cloud desktop on shared or BYOD hardware. And Windows 365 Switch blurs the boundary between local and hosted sessions, turning a cloud PC into “just another desktop.”
At the same time, Windows App enables you to run Azure Virtual Desktop, Windows 365, Microsoft Dev Box, Remote Desktop Services, and remote PCs from, well, pretty much any computing device. Specifically, you can use Windows App to run Windows on Macs, iPhones, iPads, other Windows machines, even in web browsers. That last means you can now run Windows on Linux-powered PCs, Chromebooks, and Android phones and tablets.
Heck, you can even run Windows using a Meta Quest VR headset!
A funny thing happened on the way to this cloud-based subscription service. AI came along. Microsoft, which has gone whole-hog into AI — if I see one more Copilot tie-in, I’m going to scream — decided that AI PCs would be the future. It’s wrong. As Kevin Terwilliger, Dell’s head of product, said of PC customers, “They’re not buying based on AI. I think AI probably confuses them more than it helps them.” (Ya think?)
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But as Vaughan-Nichols points out, the corollary of the expensive PC going away is subscriptions coming in, which eat away at your wallet quietly rather than when you first get into the store.
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Data center power outage took out TikTok first weekend under US ownership • Ars Technica
Ashley Belanger:
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TikTok has been glitching for US users since Sunday, and TikTok’s new US owners have finally confirmed the cause: a power outage at a US data center.
“Since yesterday we’ve been working to restore our services following a power outage at a US data center impacting TikTok and other apps we operate,” the TikTok USDS Joint Venture posted on X on Monday morning. “We’re working with our data center partner to stabilize our service. We’re sorry for this disruption and hope to resolve it soon.”
A DownDetector report tracking outages showed problems began early Sunday morning, with the majority of problems seemingly resolved by early Monday. However, The Verge reported that some US users continue to experience issues, including issues logging in, long delays uploading videos, generic content flooding For You pages, problems accessing comments, and other issues.
It’s clear that the TikTok USDS Joint Venture is still working to resolve problems connected to the power outage. But their decision to remain silent while the app got buggy during the first weekend under the control of right-wing US owners hand-picked by Donald Trump sparked conspiracy theories on social media that the app had begun censoring left-leaning users.
As the app comes back online, users have also taken note that TikTok is collecting more of their data under US control. As Wired reported, TikTok asked US users to agree to a new terms of service and privacy policy, which allows TikTok to potentially collect “more detailed information about its users, including precise location data.”
“Before this update, the app did not collect the precise, GPS-derived location data of US users,” Wired reported. “Now, if you give TikTok permission to use your phone’s location services, then the app may collect granular information about your exact whereabouts.”
New policies also pushed users to agree to share all their AI interactions, which allows TikTok to store their metadata and trace AI inputs back to specific accounts.
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Some people are also reporting that videos about incidents involving ICE or mention of the word “Epstein” result in their videos getting zero views or being censored – though these might be teething problems. Give it a week.
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Britain’s weirdest detour • The Value of Nothing
Martin Robbins:
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When a road collapsed in rural Lincolnshire recently, badgers were the least of people’s problems. The council had failed to take action for at least two or three years, but the moment they decided to fix the road they were halted by friends of the ‘stack Natural England. Still, at least the council could put a sensible detour in place. Right? Right?! Find out the whole story in the film…
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Robbins is very much tongue-in-cheek when he calls Natural England a friend of his Substack: in reality they provide him with a punching bag, deservedly – as evidenced by the clip he briefly shows of a newspaper headline saying “Natural England opposes its own plans for Cornwall development”.
It’s a short video (12 minutes), nicely put together, and he’s very good with a drone shot. You do also get to the end with a sort of hair-tearing frustration at why nothing seems to work, and nobody seems minded to fix it.
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This ingenious camera system is changing live sports forever • Fast Company
Adam Bluestein:
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Several times during the men’s final of the Madrid Open tennis tournament between Casper Ruud and Jack Draper last spring, TV viewers were treated to a remarkable camera perspective. They watched the match from just behind the baseline, effortlessly following the player’s movement step for step, capturing every shot from the perfect angle.
With no discernible blur or delays, the smoothly flowing live footage had the hyperreal feel of a video game.
“I love the footwork by the cameraman,” wrote one YouTube commenter.
The company now uses the comment in its investor pitch deck.
In reality, these uncanny tracking shots didn’t involve any human camera operators at all. No robotic cameras or drones, either. Instead they were generated, in real time, with a software-based camera system developed by startup Muybridge, based in Oslo.
Founded by Håkon Espeland and Anders Tomren in 2020, Muybridge has spent nearly five years developing real-time computer vision technology that uses software to create a “weightless” camera, with no moving parts, that captures the speed and motion of live sports in a way that our eyes aren’t accustomed to. In the coming year, viewers of televised sports will get to see many more of these revelatory perspectives—both in tennis and beyond.
…Instead of using big, expensive cameras that you move to “chase” whatever’s happening on the court or sports field, Muybridge puts hundreds of small, inexpensive video sensors all over the place—and uses software to create smooth tracking shots and conjure any angle on demand.
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It is indeed very impressive – see the link to the website to get an idea of the footage. The cameras are installed at a little above head height and look like speaker bars. (Fun task: identify the players on the three clips at the Muybridge website link. Answers at the bottom of this post.)
Of course one wonders whether a certain fruit-named company might see this and think it’s worth incorporating it.. no, that’s crazy talk.
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Iran is building a two-tier internet that locks 85 million citizens out of the global web • Rest of World
Indranil Ghosh:
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Iran’s near-total communications blackout has entered its 16th day, but that’s just a live test.
Following a repressive crackdown on protests, the government is now building a system that grants web access only to security-vetted elites, while locking 90 million citizens inside an intranet.
Government spokesperson Fatemeh Mohajerani confirmed international access will not be restored until at least late March. Filterwatch, which monitors Iranian internet censorship from Texas, cited government sources, including Mohajerani, saying access will “never return to its previous form.”
This is what makes Iran’s attempt unique: Other authoritarian states built walls before their populations went online. Iran is trying to seal off a connected economy already in freefall.
The system is called Barracks Internet, according to confidential planning documents obtained by Filterwatch. Under this architecture, access to the global web will be granted only through a strict security whitelist.
“The regime is terrified of one thing: Iranians being heard telling their own truth and having crimes documented,” Mahsa Alimardani, a digital rights researcher at U.S.-based Witness, which trains activists to use video for advocacy, told Rest of World. “The question becomes: How do we give Iranians an unbreakable voice?”
The idea of tiered internet access is not new in Iran. Since at least 2013, the regime has quietly issued “white SIM cards,” giving unrestricted global internet access to approximately 16,000 people. The system gained public attention in November 2025 when X’s location feature revealed that certain accounts, including the communications minister, were connecting directly from inside Iran, despite X being blocked since 2009.
What is different now is scale and permanence. The current blackout tests infrastructure designed to make two-tier access the default, not a temporary crackdown.
Only a handful of nations have attempted to wall off their citizens from the global internet. North Korea’s Kwangmyong intranet was built from scratch for a population that never had connectivity. China constructed its Great Firewall over two decades while nurturing domestic alternatives such as WeChat and Alibaba. Iran is attempting to do both in weeks, with no domestic alternatives.
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The modern equivalent of the Iron Curtain.
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CATL launches 1st sodium-ion battery for light commercial vehicles • CnEVPost
Phate Zhang:
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CATL has launched a sodium-ion battery for light commercial vehicles, aiming for mass adoption of this new battery type this year.
The Chinese battery giant rolled out its Tectrans II series power batteries at an event on Thursday, primarily targeting light commercial vehicles.
The series’ low-temperature variant is a sodium-ion battery, which CATL said is the industry’s first mass-produced sodium battery for light commercial vehicles, engineered for extreme cold environments.
The sodium battery pack has a capacity of 45 kWh and targets small vans and micro trucks. The battery pack can still be plugged in and charged in extreme cold conditions of -30°C. At -40°C, the battery retains 90% of its usable capacity, according to the company.
This marks CATL’s first major move in the sodium-ion battery sector this year. In 2026, sodium batteries will see large-scale adoption in battery swapping, passenger vehicles, commercial vehicles, and energy storage, CATL said at a supplier conference held in its headquarters city of Ningde, Fujian on December 28.
Sodium-ion batteries and lithium-ion batteries are poised to form a “dual-star” trend, CATL noted at the time. Beyond the sodium battery, the Tectrans II series includes an ultra-fast charging variant capable of charging from 20% to 80% in 30 minutes at -15°C.
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This might seem a bit boring, but it’s so important to have low-temperature function for electric vehicles, and especially for light commercial ones.
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Trump’s Department of Transport plans to use Google Gemini AI to write regulations • ProPublica
Jesse Coburn:
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The Trump administration is planning to use artificial intelligence to write federal transportation regulations, according to U.S. Department of Transportation records and interviews with six agency staffers.
The plan was presented to DOT staff last month at a demonstration of AI’s “potential to revolutionize the way we draft rulemakings,” agency attorney Daniel Cohen wrote to colleagues. The demonstration, Cohen wrote, would showcase “exciting new AI tools available to DOT rule writers to help us do our job better and faster.”
Discussion of the plan continued among agency leadership last week, according to meeting notes reviewed by ProPublica. Gregory Zerzan, the agency’s general counsel, said at that meeting that President Donald Trump is “very excited about this initiative.” Zerzan seemed to suggest that the DOT was at the vanguard of a broader federal effort, calling the department the “point of the spear” and “the first agency that is fully enabled to use AI to draft rules.”
Zerzan appeared interested mainly in the quantity of regulations that AI could produce, not their quality. “We don’t need the perfect rule on XYZ. We don’t even need a very good rule on XYZ,” he said, according to the meeting notes. “We want good enough.” Zerzan added, “We’re flooding the zone.”
These developments have alarmed some at DOT. The agency’s rules touch virtually every facet of transportation safety, including regulations that keep airplanes in the sky, prevent gas pipelines from exploding and stop freight trains carrying toxic chemicals from skidding off the rails. Why, some staffers wondered, would the federal government outsource the writing of such critical standards to a nascent technology notorious for making mistakes?
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At this point the relevant question becomes: will the AI make more or fewer mistakes than the Trump staffers? If their standard isn’t perfect or very good, just “good enough”, you could argue that it won’t matter if the rules contain mistakes, because they’re being intentionally sloppy.
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The Adolescence of Technology • Dario Amodei
Dario Amodei:
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There is a scene in the movie version of Carl Sagan’s book Contact where the main character, an astronomer who has detected the first radio signal from an alien civilization, is being considered for the role of humanity’s representative to meet the aliens. The international panel interviewing her asks, “If you could ask [the aliens] just one question, what would it be?”
Her reply is: “I’d ask them, ‘How did you do it? How did you evolve, how did you survive this technological adolescence without destroying yourself?” When I think about where humanity is now with AI—about what we’re on the cusp of—my mind keeps going back to that scene, because the question is so apt for our current situation, and I wish we had the aliens’ answer to guide us.
I believe we are entering a rite of passage, both turbulent and inevitable, which will test who we are as a species. Humanity is about to be handed almost unimaginable power, and it is deeply unclear whether our social, political, and technological systems possess the maturity to wield it.
In my essay Machines of Loving Grace, I tried to lay out the dream of a civilization that had made it through to adulthood, where the risks had been addressed and powerful AI was applied with skill and compassion to raise the quality of life for everyone.
I suggested that AI could contribute to enormous advances in biology, neuroscience, economic development, global peace, and work and meaning. I felt it was important to give people something inspiring to fight for, a task at which both AI accelerationists and AI safety advocates seemed—oddly—to have failed.
But in this current essay, I want to confront the rite of passage itself: to map out the risks that we are about to face and try to begin making a battle plan to defeat them. I believe deeply in our ability to prevail, in humanity’s spirit and its nobility, but we must face the situation squarely and without illusions.
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Given the events of the past few weeks, I’d suggest that the “almost unimaginable power” would be smartphones plus the internet plus our tribal instincts. But sure, AI could be that too.
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ChatGPT can analyze Apple Watch health data. Here’s how a doctor views it • The Washington Post
Geoffrey Fowler:
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Like many people who strap on an Apple Watch every day, I’ve long wondered what a decade of that data might reveal about me. So I joined a brief wait list and gave ChatGPT access to the 29 million steps and 6 million heartbeat measurements stored in my Apple Health app. Then I asked the bot to grade my cardiac health.
It gave me an F.
I freaked out and went for a run. Then I sent ChatGPT’s report to my actual doctor.
Am I an F? “No,” my doctor said. In fact, I’m at such low risk for a heart attack that my insurance probably wouldn’t even pay for an extra cardio fitness test to prove the artificial intelligence wrong.
I also showed the results to cardiologist Eric Topol of the Scripps Research Institute, an expert on both longevity and the potential of AI in medicine. “It’s baseless,” he said. “This is not ready for any medical advice.”
AI has huge potential to unlock medical insights and widen access to care. But when it comes to your fitness tracker and some health records, the new Dr. ChatGPT seems to be winging it. That fits a disturbing trend: AI companies launching products that are broken, fail to deliver or are even dangerous. It should go without saying that people’s health actually matters. Any product — even one labeled “beta” — that claims to provide personal health insights shouldn’t be this clueless.
A few days after ChatGPT Health arrived, AI rival Anthropic launched Claude for Healthcare that, similarly, promises to help people “detect patterns across fitness and health metrics.” Anyone with a paid account can import Apple Health and Android Health Connect data into the chatbot. Claude graded my cardiac health a C, relying on some of the same analysis that Topol found questionable.
…Despite having access to my weight, blood pressure and cholesterol, ChatGPT based much of its negative assessment on an Apple Watch measurement known as VO2 max, the maximum amount of oxygen your body can consume during exercise. Apple says it collects an “estimate” of VO2 max, but the real thing requires a treadmill and a mask. Apple says its cardio fitness measures have been validated, but independent researchers have found those estimates can run low — by an average of 13%.
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So, a long way from being your new doctor. (Gift link.)
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| • Why do social networks drive us a little mad? • Why does angry content seem to dominate what we see? • How much of a role do algorithms play in affecting what we see and do online? • What can we do about it? • Did Facebook have any inkling of what was coming in Myanmar in 2016? Read Social Warming, my latest book, and find answers – and more. |
Errata, corrigenda and ai no corrida: Players: Zvererv, Fils, Korda, Ruud, Zverev, Davidovich-Fokina.
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