
The latest models of Tesla’s 3 and Y cars have one tiny problem: in a few cases, the steering gives up, the US NHTSA says. CC-licensed photo by Panagiotis Katoikos on Flickr.
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It’s Friday, so there’s another post due at the Social Warming Substack at about 0845 UK time.
A selection of 9 links for you. Driven mad. I’m @charlesarthur on Twitter. On Mastodon: https://newsie.social/@charlesarthur. Observations and links welcome.
Zero resistance measured in a new LK-99 replication at Southeast University in Nanjing China • NextBigFuture.com
Brian Wang:
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A team of scientists from the Physics Department of Southeast University, a top university in Nanjing, China, have reported measuring 0 resistance in a sample of LK-99 they synthesized from scratch. Claimed to have synthesized LK-99 and to have measured superconductivity up to a temperature of 110 kelvin. Claimed to have observed an abrupt drop in resistance between ~300K and 220K, aligning with the Korean LKK team’s results. Claimed to have confirmed structural consistency with x-ray diffraction.
From the video:
• They measure 0 resistance at 110K (-163C) using the four-point probe method. 0 resistance at this high of a temperature at ambient pressure is a new discovery in materials science
• They also claim a transition in and out of zero resistance state depending on a strongly applied magnetic field – a classic characteristic of superconductivity
• The sample they synthesized is reported to have much higher purity than the original Korean team of LKK
• They note an interesting and abrupt drop in resistance, by several orders of magnitude, between ~300 and 220K (approx values from the graph). This is currently unexplained, but is in rough agreement with LKK – i.e., LKK may have been measuring this higher-temperature ‘drop’ which was two orders of magnitude
• They retain the claim that this is not absolute conclusive proof of superconductivity, but it is suggestive of very interesting electronic properties in this material.«
Liquid nitrogen boils at 77K, so this is pretty high temperature behaviour. Still unclear what is possible at room temperature, though.
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This summer is pointing us toward uncharted territory • The New York Times
David Wallace-Wells:
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On opposite ends of the planet, temperatures recorded in the North Atlantic and sea ice measured near the South Pole, tracked so far from recent trends that you might embarrass yourself simply stating the size of the anomaly — a four sigma event in the temperatures of the North Atlantic, meaning that, given a stable climate and a normal distribution of chance, it should be expected about once every few hundred years and perhaps a six sigma event for Antarctic sea ice, meaning we should expect to see it, at least according to the simplified math, only once every 7.5 million years.
At a certain point, that math just gets silly, telling you perhaps more about the improper way you might have structured the comparison than about the size of the anomaly itself. But you can measure the anomalies in other ways, such as by noting the hot-tub ocean temperatures off the Florida Keys, a year’s worth of rain falling in 36 hours in parts of Beijing or 100-degree temperatures in the mountains of Chile or that there is an Argentina-size gap between this year’s Antarctic sea ice and the typical extent. And the fact that we are seeing these gob-smacking anomalies at all is a sign that the historical framework implied by terms like “seven sigma” and “500-year storm,” imperfect in the best of times, no longer applies to the world we live in now.
The environmental journalist Juliet Eilperin called the ocean temperatures “beyond belief”; The Washington Post reported that they had “baffled scientists.” Contemplating the trajectory of Arctic sea ice, the atmospheric scientist Zack Labe wrote memorably about how often he finds himself answering questions about the state of the science these days by saying, “I don’t know.” And for all the uncertainty, many of those watching the changes unfold have a queasy intuition that we may be entering a new climatic regime — and perhaps inching closer to some quite concerning tipping points.
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I’m afraid I can find no good news on this topic.
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The lose-lose-lose-lose bill C-18 outcome: Meta blocking news links on Facebook and Instagram in Canada • Michael Geist
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For months, supporters of Bill C-18, the Online News Act, assured the [Canadian] government that Meta and Google were bluffing when they warned that a bill based on mandated payments for links was unworkable and they would comply with it by removing links to news from their platforms. However, what has been readily apparent for months became reality yesterday: Meta is now actively blocking news links and sharing on its Facebook and Instagram platforms. The announcement does not reference Threads, but it would not surprise if news links are ultimately blocked on that platform as well. The company says that the blocking will take several weeks to fully roll out to all users, suggesting that it has learned from the over-blocking mistakes made in Australia and is proceeding more cautiously in Canada. By the end of the month, the world’s largest social media platform will become a news desert in Canada, with links to all news – both Canadian and foreign – blocked on the platform.
It is worth revisiting that it was only a couple of months ago that some industry leaders, lobbyists, and academics were assuring the [Canadian] Senate that the Meta threat was just a bluff.
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Clearly, not a bluff, and if Google follows suit then Canada is going to essentially roll back to 1997 in how well it’s able to spread news. This bill never looked like a good idea. Apparently the Australian version of this is less onerous, which made Facebook and Google just about accept it there.
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Ponzi scheme E-Creator targeted desperate workers • Rest of World
Kimberly Mutandiro:
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Dumi, a 26-year-old from Harare’s Mbare township, had been unemployed for about two years this past May when he heard of E-Creator, a company that paid people to write positive reviews on e-commerce platforms like Zalando and Lazada.
The job sounded almost too good to be true: Dumi would have to go through a range of products on E-Creator’s website — items like sling bags or backpacks — and write reviews for 10 of them. This would earn him $4 a day. Dumi, who spoke to Rest of World under a pseudonym, estimated it’d take him less than 20 minutes to complete the task daily.
The only catch was that he would first need to invest $15 from his own pocket. But Dumi said he did so without concern, drawn by the prospect of making money.
During the first two weeks at this job, E-Creator kept prompting him to invest incremental amounts of $15. By June, he had deposited $112 into the e-wallet on E-Creator, and that’s when things suddenly went downhill.
On June 30, Dumi woke up to find his E-Creator account frozen. He had $250 in his wallet that he could no longer withdraw. Within days, scores of other Zimbabweans had taken to social media to complain about their money being stuck with E-Creator. Local reports alerted the public to a statement posted on E-Creator’s website: The company claimed its director, Zhao Jiaotong, had disappeared. More reports claimed he had run off with over $1m, obtained from scamming people like Dumi.
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Sad but true: Zimbabweans are desperate for work – any kind of work – and this sort of thing drags them in.
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Steering problems place Tesla under NHTSA scrutiny again • The Register
Brandon Vigliarolo:
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The US National Highway Traffic Safety Administration (NHTSA) has opened another investigation into steering issues in Tesla vehicles – the second such probe the agency has launched this year.
The NHTSA opened its latest investigation after receiving 12 complaints from 2023 Tesla Model 3 and Y owners complaining of loss of steering control that frequently occurred along with an on-screen message alerting drivers that “power steering assist is reduced or disabled.”
“Five reports indicate an inability to steer the vehicle. Seven additional reports cite loss of power steering resulting in increased effort to control the vehicle,” the NHTSA said in its investigation document.
Along with 12 complaints, the NHTSA said the issue resulted in one accident, which appears to have affected a 2023 Model 3 owner in May. “Car steering felt stuck and slid off the road which resulted in crashing into a tree,” the Model 3 owner reported. “Tesla features did not help stay in the lane or break in an emergency.”
A look through the reports submitted by 2023 Model 3 and Model Y owners indicates repeated issues in which steering wheels on the models would lock up at random, both while driving and at a stop.
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That all sounds very undesirable. Even if it’s a loss of hydraulics in the power steering system, that would be pretty terrifying if you were going at any speed.
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Nvidia AI image personalization method fits on a floppy disk and takes four minutes to train • Decrypt
Jose Antonio Lanz:
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In the rapidly evolving landscape of AI art creation tools, Nvidia researchers have introduced an innovative new text-to-image personalization method called Perfusion. But it’s not a million-dollar super heavyweight model like its competitors. With a size of just 100KB and a 4-minute training time, Perfusion allows significant creative flexibility in portraying personalized concepts while maintaining their identity.
Perfusion was presented in a research paper created by Nvidia and the Tel-Aviv University in Israel. Despite its small size, it’s able to outperform tweaking methods used by leading AI art generators like Stability AI’s Stable Diffusion v1.5, the newly released Stable Diffusion XL (SDXL), and MidJourney in terms of efficiency of specific editions.
The main new idea in Perfusion is called “Key-Locking.” This works by connecting new concepts that a user wants to add, like a specific cat or chair, to a more general category during image generation. For example, the cat would be linked to the broader idea of a “feline.”
This helps avoid overfitting, which is when the model gets too narrowly tuned to the exact training examples. Overfitting makes it hard for the AI to generate new creative versions of the concept.
By tying the new cat to the general notion of a feline, the model can portray the cat in many different poses, appearances, and surroundings. But it still retains the essential “catness” that makes it look like the intended cat, not just any random feline.
So in simple terms, Key-Locking lets the AI flexibly portray personalized concepts while keeping their core identity. It’s like giving an artist the following directions: “Draw my cat Tom, while sleeping, playing with yarn, and sniffing flowers.”
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Only question now is where I find a floppy disk to put it on.
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Generative AI services pulled from Apple App Store in China ahead of new regulations • TechCrunch
Rita Liao:
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Multiple generative AI apps have been removed from Apple’s China App Store, two weeks ahead of the country’s new generative AI regulations that are set to take effect on August 15.
The move came after Chinese developers received notices from Apple informing them of their apps’ removal. In its letter to OpenCat, a native ChatGPT client, Apple cited “content that is illegal in China” as the reason for pulling the app.
In July, China announced a set of measures to regulate generative AI services, including API providers. The rules require AI apps operating in China to obtain an administrative license, which is reflected in Apple’s removal notice.
“As you may know, the government has been tightening regulations associated with deep synthesis technologies (DST) and generative AI services, including ChatGPT. DST must fulfill permitting requirements to operate in China, including securing a license from the Ministry of Industry and Information Technology (MIIT),” Apple said to OpenCat. “Based on our review, your app is associated with ChatGPT, which does not have requisite permits to operate in China.”
The popular tech blogger @foxshuo tweeted screenshots showing supposedly more than 100 AI apps that have been removed from the China App Store. TechCrunch confirmed that several of those apps indeed couldn’t be found in the China App Store.
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Twitter Blue subscribers can now hide their blue checks • The Verge
Tom Warren:
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Twitter Blue, which Elon Musk is currently rebranding to X Blue, now includes the option to hide the notorious blue checkmark. Twitter Blue subscribers recently started noticing the “hide your blue checkmark” option on the web and in mobile apps, offering the ability to hide that they’re paying for Twitter and avoid memes about how “this mf paid for twitter.”
“The checkmark will be hidden on your profile and posts,” notes a Twitter support article. “The checkmark may still appear in some places and some features could still reveal you have an active subscription. Some features may not be available while your checkmark is hidden.”
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You pay so that you can look like all the other people who don’t pay? More and more mad.
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Uber’s business is finally making money after years of losses • WSJ
Preetika Rana:
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Uber Technologies UBER -5.68%decrease; red down pointing triangle posted its first-ever operating profit in the second quarter, a milestone in its long-term efforts to stem losses in its businesses carrying people and delivering food.
The results for the three months through June were driven by solid growth in both of Uber’s core businesses, as the number of rides in the U.S. and Canada surpassed prepandemic levels for the first time and demand for delivery stayed strong despite restaurant reopenings.
The quarter was the first since Uber’s 2009 founding that it reported its underlying operations were profitable. The easy availability of capital for much of the past decade had Uber and others burning tens of billions of dollars in an attempt to gain market share.
From 2016 through the first quarter of this year, Uber has collectively reported close to $30 billion in operating losses, according to S&P Global Market Intelligence.
“For most of our history, profitable wasn’t the first thing that came up when you asked someone about Uber,” Chief Executive Dara Khosrowshahi said on a Tuesday call with analysts. “In fact, many observers over the years boldly claimed that we would never make any money…But we knew they were wrong,” he added.
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It’s 12 paragraphs before you actually get the numbers:
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Uber posted a profit of $394m during the second quarter, compared with a loss of $2.60bn a year earlier. That came in better than the $18m loss that analysts polled by FactSet had expected and was driven predominantly by its operating profit, which totaled $326m. Wall Street expects Uber to continue recording an operating profit for the rest of the year.
Uber’s revenue rose 14% to $9.23bn, a slight miss from what analysts had expected. Its gross bookings—or the total value of transactions on its app—grew 16% to $33.60bn, beating expectations.
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So that’s a 4% profit; an operating profit of 3.5%. It’s going to be a long time before all those sunk losses are paid off.
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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: none notified

