
Scientists have detected the transit of an incredibly energetic neutrino – generated perhaps by a black hole? CC-licensed photo by NASA Goddard Space Flight Center on Flickr.
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No post today at the Social Warming Substack. But please consider the penny puzzle at the end of this post.
A selection of 11 links for you. Untouchable. I’m @charlesarthur on Twitter. On Threads: charles_arthur. On Mastodon: https://newsie.social/@charlesarthur. On Bluesky: @charlesarthur.bsky.social. Observations and links welcome.
How a computer that ‘drunk dials’ videos is exposing YouTube’s secrets • BBC Future
Thomas Germain:
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How many YouTube videos are there? What are they about? What languages do YouTubers speak? As of 14 February 2025, the platform’s will have been running for 20 years. That is a lot of video. Yet we have no idea just how many there really are. Google knows the answers. It just won’t tell you.
Experts say that’s a problem. For all practical purposes, one of the most powerful communication systems ever created – a tool that provides a third of the world’s population with information and ideas – is operating in the dark.
In part that’s because there’s no easy way to get a random sampling of videos, according to Ethan Zuckerman, director of the Initiative for Digital Public Infrastructure at the University of Massachusetts at Amherst in the US. You can pick your videos manually or go with the algorithm’s recommendations, but an unbiased selection that’s worthy of real study is hard to come by. A few years ago, however, Zuckerman and his team of researchers came up with a solution: they designed a computer program that pulls up YouTube videos at random, trying billions of URLs at a time.
You might call the tool a bot, but that’s probably over selling it, Zuckerman says. “A more technically accurate term would be ‘scraper’,” he says. The scraper’s findings are giving us a first-time perspective on what’s actually happening on YouTube.
…When Google first acquired the platform in 2006, around 65,000 videos were uploaded every day. More recently the company says more than 500 hours are uploaded per minute, but it’s tight-lipped about the number of videos.
Zuckerman and his colleagues compared the number of videos they found to the number of guesses it took, and arrived an estimate: in 2022, they calculated that YouTube housed more than nine billion videos. By mid 2024, that number had grown to 14.8 billion videos, a 60% jump.
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However, one then asks how many views a video typically has. The modal (most common) figure? Between 17 and 32. The average (mean) is below 500.
‘Ultrahigh energy’ neutrino found with a telescope under the sea • The New York Times
Katrina Miller:
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“What we have discovered is, we think, the most energetic neutrino ever recorded on Earth,” said Paul de Jong, a physicist at the University of Amsterdam and current spokesperson for the global collaboration of roughly 350 scientists who were involved in the discovery.
The team announced its “ultrahigh energy” neutrino on Wednesday, in a paper published in the journal Nature. The finding brings physicists and astronomers one step closer to understanding just what, exactly, is out there thrusting particles to such unfathomable speeds. [Not speeds, but energies; nothing goes faster than light, and neutrinos travel at a few parts per billion below the speed of light – Overspill Ed.]
At a news conference on Tuesday, researchers described the discovery as a peek into what the universe looks like at its most extreme. “We’ve just opened a completely new window,” said Paschal Coyle, an astroparticle physicist at the Center for Particle Physics of Marseille in France. “It’s really a very exciting first glimpse into this energy regime.”
Neutrinos are notoriously antisocial. Unlike most other particles, they are nearly weightless and carry no electrical charge, so they do not regularly collide, repel or otherwise interact with matter. They flow through nearly everything — the innards of stars, the churning dust of galaxies, ordinary people — without a trace.…The detector did not see the neutrino directly. Rather, it picked up traces of a different subatomic particle, known as a muon, created when the neutrino bumped into rock or seawater nearby.
That muon zipped through KM3NeT at lightning-fast speed, leaving a trail of bright blue photons in the otherwise dark abyss of the sea. Using the pattern of light, as well as the time of its arrival at different parts of the grid, the team deduced the direction of the original neutrino. They also estimated that the neutrino carried 220 million billion electronvolts of energy.
That’s no greater than the energy of a falling Ping-Pong ball. But the energy of a Ping-Pong ball is spread over a thousand billion billion particles. Here, squeezed into one of the tiniest flecks of matter in our universe, that energy amounted to tens of thousands of times more than what can be achieved by the world’s premier particle accelerator, the Large Hadron Collider at CERN.
…One big question is what sort of cosmic accelerator might have generated such energetic particles. Perhaps a supermassive black hole voraciously devouring the gas and dust surrounding it. Or maybe a cataclysmic burst of gamma rays, the highest energy form of light, which occurs when the heart of a star caves in on itself.
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There: a question for you to wrestle with over the weekend – what made the energetic neutrino?
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A manifesto for the simple scribe – my 25 commandments for journalists •The Guardian
Tim Radford, who has died aged 84, was The Guardian’s science editor when I had the same position at The Independent. He was a delightful presence – knowledgeable, but never proud, and tolerant. This is part of his advice for journalists:
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4. Journalism is important. It must never, however, be full of its own self-importance. Nothing sends a reader scurrying to the crossword, or the racing column, faster than pomposity. Therefore simple words, clear ideas and short sentences are vital in all storytelling. So is a sense of irreverence.
5. Here is a thing to carve in pokerwork and hang over your typewriter. “No one will ever complain because you have made something too easy to understand.”
6. And here is another thing to remember every time you sit down at the keyboard: a little sign that says “Nobody has to read this crap.”
7. If in doubt, assume the reader knows nothing. However, never make the mistake of assuming that the reader is stupid. The classic error in journalism is to overestimate what the reader knows and underestimate the reader’s intelligence.
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There is, as you can surmise, a lot more. I think the points about pomposity and clarity are key, but of course lots of it is essential for journalists of all hues. It’s tempting to say we’ll never again see his like again. But I hope we do. (I think he would have sighed about the mistake in the NYT article above, about neutrino speeds.) There’s a wonderful obituary too.
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H5N1 testing in cow veterinarians suggests bird flu is spreading silently • Ars Technica
Beth Mole:
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Three veterinarians who work with cows have tested positive for prior infections of H5 bird flu, according to a study released on Thursday by the Centers for Disease Control and Prevention (CDC).
The finding may not seem surprising, given the sweeping and ongoing outbreak of H5N1 among dairy farms in the US, which has reached 968 herds in 16 states and led to infections in 41 dairy workers. However, it is notable that none of the three veterinarians were aware of being infected, and none of them worked with cows that were known or suspected to be infected with H5N1. In fact, one of them only worked in Georgia and South Carolina, two states where H5N1 infections in dairy cows and humans have never been reported.
The findings suggest that the virus may be moving in animals and people silently, and that our surveillance systems are missing infections—both long-held fears among health experts.
The authors of the study, led by researchers at the CDC, put the takeaway slightly differently, writing: “These findings suggest the possible benefit of systematic surveillance for rapid identification of HPAI A(H5) virus in dairy cattle, milk, and humans who are exposed to cattle to ensure appropriate hazard assessments.”
The study was carried out in September. Veterinarians were recruited at an in-person veterinary conference where they gave blood samples and reported cattle exposures in the previous three months. A total of 150 bovine veterinarians took part in the study, 143 from the US and seven from Canada.
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OK, watching brief, but – September? What’s been happening since then?
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Burning in woman’s legs turned out to be slug parasites migrating to her brain • Ars Technica
Beth Mole:
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It started with a bizarre burning sensation in her feet. Over the next two days, the searing pain crept up her legs. Any light touch made it worse, and over-the-counter pain medicine offered no relief.
On the third day, the 30-year-old, otherwise healthy woman from New England went to an emergency department. Her exam was normal. Her blood tests and kidney function were normal. The only thing that stood out was a high number of eosinophils—white blood cells that become active with certain allergic diseases, parasitic infections, or other medical conditions, such as cancer. The woman was discharged and advised to follow up with her primary care doctor.
Over the next few days, the scorching sensation kept advancing, invading her trunk and arms. She developed a headache that was also unfazed by over-the-counter pain medicine. Seven days into the illness, she went to a second emergency department. There, the findings were much the same: normal exam, normal blood tests, normal kidney function, and high eosinophil count—this time higher. The reference range for this count was 0 to 400; her count was 1,050. She was given intravenous medicine to treat her severe headache, then once again discharged with a plan to see her primary care provider.
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This whole episode reads like, well, an episode of House: I’m only surprised they never used it for a plotline, though perhaps it would have been too obvious for Gregory House MD:
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Just four days before her feet began burning, she had returned from a three-week trip that included stops in Bangkok, Thailand; Tokyo, Japan; and Hawaii. They asked what she ate. In Thailand, she ate street foods but nothing raw. In Japan, she ate sushi several times and spent most of her time in a hotel. In Hawaii, she again ate sushi as well as salads.
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Also reminiscent the episode of Futurama where Fry, at an interplanetary rest stop, eats an egg sandwich. Later: “oh, yes, it’s absolutely full of the eggs of that parasite.”
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Dating app cover-up: how Tinder, Hinge, and their corporate owner keep rape under wraps • The Markup
Emily Elena Dugdale and Hanisha Harjani:
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Hinge is one of more than a dozen dating apps owned by Match Group. The $8.5bn global conglomerate also owns brands like Tinder (the world’s most popular dating app), OkCupid, and Plenty of Fish. Match Group controls half of the world’s online dating market, operates in 190 countries, and facilitates meetups for millions of people.
Match Group’s official safety policy states that when a user is reported for assault, “all accounts found that are associated with that user will be banned from our platforms.”
So why, on the night of Jan. 25, 2023, was Stephen Matthews still on the app? Just four days before, Match Group had been alerted when another woman reported him for rape. A little more than a week later, he was reported for rape again. This time, the survivor went to the police.
None of these women knew that the company had known about his violent behavior for years. He was first reported on Sept. 28, 2020. By then, Match Group’s safety policy was already in place.
Even after a police report, it took nearly two months for Matthews to be arrested — the only thing that got him off the apps. By then, at least 15 women would eventually report that Matthews had raped or drugged them. Nearly every one of them had met him on dating apps run by Match Group.
On Oct. 25, a Denver judge sentenced Matthews to 158 years to life in prison after a jury convicted him of 35 counts related to drugging and sexually assaulting eight women, drugging two women, and assaulting one more for a total of 11 women. Attorneys for the women said much of that violence could have been prevented.
“It is shocking that for years after receiving reports of sexual assault, Hinge continued to allow Stephen Matthews access to its platforms and actively facilitated his abuse,” said Laura Wolf, the attorney representing the woman whose police report led to the arrest.
…Match Group has known for years which users have been reported for drugging, assaulting, or raping their dates since at least 2016, according to internal company documents. Since 2019, Match Group’s central database has recorded every user reported for rape and assault across its entire suite of apps; by 2022, the system, known as Sentinel, was collecting hundreds of troubling incidents every week, company insiders say.
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Anyway, happy Valentine’s day to all you singles!
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Sens. Cruz, Klobuchar, Reps. Salazar, Dean continue fight to pass TAKE IT DOWN ACT • US Senate Commerce committee
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In one of his first moves as the Chairman of the U.S. Senate Committee on Commerce, Science, and Transportation, Sen. Ted Cruz (R-Texas) joined Senator Amy Klobuchar (D-Minn.) in reintroducing the bipartisan, bicameral TAKE IT DOWN Act. The legislation would criminalize the publication of non-consensual, sexually exploitative images—including AI-generated deepfakes—and require platforms to remove images within 48 hours of notice.
The bill unanimously passed both the Commerce Committee and the full Senate during the last session of Congress. For the current 119th Congress, U.S. Representatives Maria Elvira Salazar (R-Fla.) and Madeleine Dean (D-Pa.) will introduce companion legislation as they did last year. The TAKE IT DOWN Act has received widespread support from over 100 organizations, including victim advocacy groups, law enforcement, and tech industry leaders.
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Yesterday Scarlett Johansson calls for a law against deepfakes, today here one is! Except it needs to pass in the House of Representatives. Then again, bipartisan support might mean it happens.
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The NBA Apple Vision Pro app now has a 3D tabletop view • UploadVR
David Heaney:
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The official NBA Apple Vision Pro app now has Tabletop, a diorama-scale virtual representation of the live game you’re watching.
Tabletop shows in addition to the 2D livestream view you see floating in front of you as a large virtual screen, giving you the benefits of both. Note that the 2D livestream view is not visible in the screen recording below, due to the DRM protection system it uses.
There’s a roughly half-second delay between the livestream and the Tabletop representation, according to those who’ve tried it, likely due to the processing time of the motion capture technology at the stadiums used to power this feature. In theory, the NBA could artificially delay the livestream view to match it, but it isn’t currently doing so.
Tabletop is currently available for a few games per night, and the NBA plans to make it available for all League Pass games next season.As with the other functionality of the NBA app, this requires a League Pass subscription, which starts at $15/month.
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Live sports! For the Vision Pro! At the same price as the normnal sports. This is exactly what it needs. The footage looks ok, if a bit generated (because it’s avatars rather than the people?). You can walk around to get a different view of what’s happening, though it’s not clear whether you can zoom in on particular players.
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Stellantis introduces pop-up ads in vehicles, sparking outrage among owners • TechStory
Samir Gautam:
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Car technology is supposed to make driving safer, smoother, and more enjoyable. But Stellantis, the parent company of Jeep, Dodge, Chrysler, and Ram, seems to have taken a different approach—one that prioritizes ad revenue over user experience.
In a move that has left drivers both frustrated and bewildered, Stellantis has introduced full-screen pop-up ads on its infotainment systems. Specifically, Jeep owners have reported being bombarded with advertisements for Mopar’s extended warranty service. The kicker? These ads appear every time the vehicle comes to a stop.
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Connected cars are looking like a mistake, aren’t they.
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Elon Musk’s X settles Trump lawsuit over deplatforming • CNBC
Dan Mangan:
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Social media company X has agreed to pay about $10m to settle a lawsuit by President Donald Trump, who has put X’s billionaire owner Elon Musk in charge of a major government cost- and staff-cutting effort.
Trump had sued X, then known as Twitter, and its then-CEO Jack Dorsey in San Francisco federal court for deplatforming his account following the Jan. 6, 2021, riot at the U.S. Capitol by his supporters. Twitter had cited the risk of Trump inciting further violence related to his effort to remain in the White House following his loss to former President Joe Biden in the 2020 election.
Trump claimed Twitter had violated his First Amendment right to free speech. …John Kelly, one of Trump’s attorneys in the lawsuit, confirmed to CNBC that the president and X reached a settlement.
“It’s resolved,” Kelly told CNBC.
NBC News later Wednesday confirmed settlement involved a payment of about $10m by X, citing a source familiar with the situation.
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Except.. a judge had already dismissed the lawsuit. Trump was appealing, and waiting for the judgment on that appeal. X was not going to lose the appeal: social media companies get to make their own rules, and they can ban people as they like, for anything or nothing.
So why is Musk paying Trump (and his lawyers) $10m to make a lawsuit that’s embarrassing for both sides – Musk when he wins, Trump when he loses – go away? Such a puzzle.
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Well-managed solar farms can boost wildlife, Cambridge study says • BBC News
Danny Fullbrook (and PA Media):
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A new study has found well-managed solar farms can make an important contribution to nature as well as “provide relief from the effects of agricultural intensification”.
The report, from the RSPB and the University of Cambridge, was published on Wednesday in the journal Bird Study and looked at two types of solar farms in the East Anglian Fens.
Scientists found that solar farms had a greater number of species and individual birds per hectare than the surrounding arable land.
It added that farms which had been managed with a mix of habitats, had not cut back grass and maintained hedgerows, had nearly three times the number of birds present compared with arable land nearby.
Dr Catherine Waite, researcher at the University of Cambridge and co-author of the study, said: “With the combined climate and biodiversity crises, using land efficiently is crucial.
“Our study shows that if you manage solar energy production in a certain way, not only are you providing clean energy but benefiting biodiversity.”
The findings showed well-managed solar farms in arable-dominated areas could provide biodiversity benefits as part of mixed-use landscapes.
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This is going to upset some people terribly.
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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: As a coda to yesterday’s article about Trump removing the penny because it costs too much to make, Adrian M raises an objection:
But if a penny participates in, facilitates, permits, 10 transactions in its lifetime then the manufacturing overhead is .37p and if it manages to last through 100 then we are down to a 3.7% cost on that particular small part of the transaction, which is in the ballpark of the cost of electronic transactions, I think.
Looking in my change, I see I have a 1973 American coin which is in good condition. Although it is resting here now, it would have been used 500 times if only once per month.
Sir Terry Pratchett sorted out that simplistic argument IIRC in Making Money, the sequel to Going Postal.
I don’t think this is right – once made the penny doesn’t benefit the government – but would welcome informed views.








