Alterslash

the unofficial Slashdot digest
 

Contents

  1. Claude, Microsoft Copilot Fail Again to Predict the Winners of the Kentucky Derby
  2. Chinese Exports of Green Technologies Surged to Record Levels After Iran War Began
  3. Former NASA Engineers Create Ingenious Way To Save Homes From Wildfires Using Noise
  4. Ask Slashdot: Are YouTube’s Subtitles ‘Appallingly Bad’?
  5. The $19B “Nuclear AI” Energy Startup That Couldn’t Sign a Single Client
  6. Using Drones for Cloud-Seeding Can Trigger Rain, Company Claims
  7. What if Tech Company Layoffs Aren’t All About AI?
  8. An Amateur Just Solved a 60-Year-Old Math Problem - by Asking AI
  9. Costumed Crowd ‘Speedruns’ Scientology Building For Social Media Trend
  10. Retina Scan for Diabetes Could Also Reduce Deaths During Pregnancy in Developing Countries
  11. Linux Percentage of Steam Users Doubled in One Year
  12. Marvel, DC, Game Publishers Launch Rival Events Saturday for Free Giveaways
  13. GameStop Is Preparing Offer For eBay
  14. New Lithium-Plasma Engine Passes Key Mars Propulsion Test
  15. Amazon Stuck With Months of Repairs After Drone Strikes On Data Centers

Alterslash picks up to the best 5 comments from each of the day’s Slashdot stories, and presents them on a single page for easy reading.

Claude, Microsoft Copilot Fail Again to Predict the Winners of the Kentucky Derby

Posted by EditorDavid View on SlashDot Skip
In 2016 an online “swarm intelligence” platform generated a correct prediction for the Kentucky Derby — naming all four top finishers in order. (But its 2017 predictions weren’t even close.) Slashdot checked in again on how modern AI systems performed in 2023, 2024, and 2025 — but their predictions were still pretty bad. Would AI-generated Derby predictions be any better in 2026?

This year’s winner was 24-to-1 longshot "Golden Tempo" — though a lot of oddsmakers had favored a horse named Further Ado (which ultimately only finished 11th). So when USA Today prompted Microsoft Copilot for its own picks for the Kentucky Derby, Copilot also went with Further Ado. (Even worse, it predicted Golden Tempo would come in… 13th.)

Here’s how Copilot’s picks actually performed…
  1. Further Ado (finished 11th)
  2. Chief Wallabee (finished 4th)
  3. The Puma (SCRATCHED)
  4. Renegade (finished 2nd)
  5. Commandment (finished 7th)
  6. So Happy (finished 9th)
  7. Emerging Market (finished 10th)
  8. Danon Bourbon (finished 5th)
  9. Potente (finished 12th)
  10. Incredibolt (finished 6th)
  11. Robusta (finished 14th)
  12. Ocelli (finished 3rd)
  13. Golden Tempo (finished 1st)
  14. Pavlovian (finished 18th)
  15. Great White (SCRATCHED)
  16. Wonder Dean (finished 8th)
  17. Litmus Test (finished 17th)
  18. Albus (finished 15th)
  19. Six Speed (finished 13th)
  20. Intrepido (finished 16th)

Copilot was told to use the latest odds, conditions, and analysis of favorites, best bets, expert picks, previous results and race history with the post positions, according to USA Today. And meanwhile, Yahoo Sports asked Claude “to simulate the race using the opening odds, draw and potential track conditions. We also asked it to factor in some human predictions.”

Like Microsoft Copilot, Claude also picked Further Ado to finish first (though it came in 11th) — and predicted that Golden Tempo (the eventual first-place finisher) would finish 12th.

  1. Further Ado (finished 11th)
  2. The Puma (SCRATCHED)
  3. Commandment (finished 7th)
  4. Chief Wallabee (finished 4th)
  5. Renegade (finished 2nd)
  6. Emerging Market (finished 10th)
  7. So Happy (finished 9th)
  8. Incredibolt (finished 6th)
  9. Danon Bourbon (finished 5th)
  10. Potente (finished 12th)
  11. Pavlovian (finished 18th)
  12. Golden Tempo (finished 1st)
  13. Litmus Test (finished 17th)
  14. Albus (finished 15th)
  15. Wonder Dean (finished 8th)
  16. Six Speed (finished 13th)
  17. Intrepido (finished 16th)

How does AI do predicting lottery numbers?

By misnohmer • Score: 3 Thread
Whoever thought AI somehow magically knows the future? This is silly. Sure, there is some information in horse racing that can help skew the statistics from purely random flat distribution, but come on, do we really think AI is all knowing of all future outcomes?

Chinese Exports of Green Technologies Surged to Record Levels After Iran War Began

Posted by EditorDavid View on SlashDot Skip
“The war in Iran has sent oil-starved countries scrambling for fuel,” CNN reported this week. And many of those countries now want renewable fuels, the article points out, “leaving them turning to the renewables king of the planet: China.”
Chinese exports of solar technology, batteries and electric vehicles all reached record highs in March, according to energy think tank Ember, a sign that the historic oil supply shock is accelerating the adoption of clean energy around the world… A Thursday report from Ember said China exported 68 gigawatts of solar technology in March, surpassing the previous record set in August by 50%. Fifty countries set new records for Chinese solar imports, with the most significant growth coming from emerging markets in Asia and Africa hit hardest by the energy crisis, according to the think tank. “Fossil shocks are boosting the solar surge,” said Euan Graham, senior analyst at Ember, in the report. “Solar has already become the engine of the global economy, and now the current fossil fuel price shocks are taking it up a gear.”

Ember said exports of solar, batteries and EVs in total rose 70% in March year over year, according to Chinese customs data… China’s battery exports reached $10 billion in March, with particularly high growth rates in the European Union, Australia and India, Ember said. Uncertainty over when the Strait of Hormuz will reopen has spurred deeper regional anxieties about energy securi"ty, helping to hasten the transition to clean energy, analysts said.
The article notes how different countries are reacting to fuel

Thanks to Slashdot reader AleRunner for sharing the article.


Making China Great Again.

By Mr. Dollar Ton • Score: 4, Insightful Thread

The very substance of any trumpistani policy so far.

Closet Environmentalist?

By Art Challenor • Score: 3 Thread
I assume that the attack on Iran was a well thought through plan to encourage the world to decrease oil dependency. Nothing else makes much sense.

Unfortunately, it doesn’t appear the the US is going to be the beneficiary of this plan. As the rest of the world moves toward clean, cheap energy, the US is going to be left behind. Making gas powered cars that no one else in the world wants and generating power from fossil fuels.

Re:Making China Great Again.

By ArchieBunker • Score: 4, Insightful Thread

Just like all those weapons of mass destruction in Iraq that mysteriously evaporated after we invaded.

Re:The new CATL batteries are wild

By saloomy • Score: 4, Interesting Thread
I was hesitant of the charge time fear, but having lives with an EV for 8 years (first Model X in 2018), I can say that the obsession with charge time is ridiculous unless you are a long haul trucker. My cars charge overnight, every night. I have a Tesla wall charger on every parking space in my garage, and my wife and I charge our cars to full, every night. I use a supercharger… 8 times a year? Seriously, how often do you drive 250+ miles a day? Even the Model 3’s standard range cars do that. It is such a better way to live where every day you have a “full tank of gas” when you turn on your car. Not everyone can afford the capital outlay for solar panels, but we did and it makes our drives effectively free. Seriously, the maintenance, the running expenses, has all been unbelievable. Stop squeezing every ounce of longevity from your batteries and just accept the fact that you MUST sleep at some point, which is a great time to charge up your cars.

Re:The new CATL batteries are wild

By thegarbz • Score: 4, Insightful Thread

This was always the bottleneck for a lot of people

Because people can’t separate the concept of a gas station with a vehicle. This has been a bottleneck for people who will eventually find themselves in a situation where they don’t actually ever fast charge their vehicle.

I was guilty of this. I thought EVs needed to charge in 10minutes. Then I got one, and I can count on one hand the number of times I’ve charged my EV at more than 40kW (the charger in my street and at work) in the past 2 years. I feel a bit silly for thinking that fast charging was an important metric, so do does everyone I know who got an EV.

Former NASA Engineers Create Ingenious Way To Save Homes From Wildfires Using Noise

Posted by EditorDavid View on SlashDot Skip
“Scientists have created a miraculous new way to stop fires from spreading through neighborhoods using nothing but sound,” reports the New York Post:
Former NASA engineers with California-based Sonic Fire Tech found that using sound waves can snuff out blazes and potentially be used to stop another Pacific Palisades inferno… The technology works by targeting oxygen molecules using low-frequency sound waves that vibrate them, stopping the fire from growing. “Sound waves vibrate the oxygen faster than the fuel can use it, and break the chemical reaction of the flame,” Remington Hotchkis, Chief Commercialization Officer at Sonic Fire Tech told The Post.

The San Bernardino County Fire Department recently tested out the equipment using a backpack version and the results were incredible. Video shows firefighters fighting small blazes on a shrub and a stove top fire with the technology putting it out… In the home application, the system would be alerted/activated if there was a fire, sending the sound waves through a home duct system, essentially snuffing out the blaze. The sound waves can reach as far as 30ft from a home, the report noted. The sound is also harmless to pets and humans.
The article includes this quote that an executive at the company gave local news station KMPH. “Our former NASA engineers are rocket scientists, and they say it seems like magic, but it’s just physics.”

“The sound is also harmless to pets and humans”

By haruchai • Score: 4, Funny Thread

good luck convincing all the anti wind farm people about that and they won’t be the only ones won’t believe it

Maybe. Or maybe not.

By SoftwareArtist • Score: 5, Informative Thread

Trust the New York Post to breathlessly repeat a company’s advertizing claims about the amazing things their technology can do. Here is a different article that treats it more skeptically:

But two experts who spoke with Ars raised serious questions about the potential for this technology to supplant traditional sprinklers in a home. They are even more skeptical as to whether the technique can be effective in an uncontrolled wildfire situation, where flames can grow very quickly.

[…]

Wittasek said that if Sonic Fire Tech is going to claim that its product is as good as or better than the NFPA 13D standard, it should be able to provide a whole range of specifics, such as “who validated it, what test protocols were used, what fire scenarios were included, and how success was defined.”

“I would want to see full-scale testing that includes typical residential fires like furniture and mattress fires, cooking fires, electrical fires, and attic or exterior ember exposures,” he added. “It should also cover different conditions like open and closed doors, varying ceiling heights, crosswinds, obstructed fuel packages, and whether the fire comes back after the system shuts off.”

Similarly, Michael Gollner, a professor of mechanical engineering at the University of California, Berkeley, and an expert in fire dynamics, told Ars there’s simply not enough information yet to show that this technology works better than sprinklers.

He pointed to a 2018 academic paper, which found that “acoustics alone are insufficient to control flames beyond the incipient stage.”

Re: That is what I like about American units

By kenh • Score: 4, Informative Thread

Why would a bird fly thru a burning tree?

Ask Slashdot: Are YouTube’s Subtitles ‘Appallingly Bad’?

Posted by EditorDavid View on SlashDot Skip
Long-time Slashdot reader Anne Thwacks frequently uses YouTube’s subtitles “not to disturb others in the room, or because my hearing is not very good.” But they say there’s a new problem.

“The subtitling is terrible!”
Almost every sentence has a huge error. Proper names are more often wrong than right. Non-English place names are almost always mangled to barely recognizable. And no effort whatsoever is made to use context to figure out whether a place name is Russian or Arabic, and often complete garbage is used in place of a common French, Spanish or Italian name!

If AI actually works (I have my doubts about this), surely it would be possible to figure out language contexts. If it is about an event in Italy, then expect a lot of Italian names! If it is about the Russia-Ukraine war, then expect places in Russia or Ukraine to be more plausible than mindless gobbledygook! Does YouTube not know that there are places in the world that are not in America? (However, plenty of names of people and places famous in America are also regularly screwed up.)
They argue the subtitles are “appallingly bad” — and that “the situation seems to be getting worse,” wondering why the problem isn’t addressed with some basic spell-checking. (“I’m sure that the vast majority of foul-ups could be fixed by the use of a dictionary.”) Have any Slashdot readers seen similar problems? A friend of mine noticed that YouTube’s subtitles even bungled this innocuous song from the 1966.

ANNETTE FUNICELLO: “If your love is true love, you can tell by his touch.”
YOUTUBE SUBTITLE: “If your love is too lava, you can tell by his touch…”

Share your own experiences and thoughts in the comments. And do you think YouTube’s subtitles are “appallingly bad”?

Nah

By devslash0 • Score: 4, Insightful Thread

It’s just that the entire YouTube is appallingly bad.

Not all

By PPH • Score: 3 Thread

Some are OK.

The $19B “Nuclear AI” Energy Startup That Couldn’t Sign a Single Client

Posted by EditorDavid View on SlashDot Skip
“Nuclear AI startup” Fermi had hoped to build power plants generating 17 gigawatts of electricity, remembers Bloomberg, “three times the amount typically consumed by New York City.”
Hyperscalers could install their data centers on the site itself and tap directly into that power, which would come first from natural gas turbines and later from nuclear reactors. The pitch ticked so many boxes — artificial intelligence, nuclear energy, political connections — that some investors found it irresistible. Fermi went public in October worth more than $19 billion in market value, despite reporting no revenue or signed customers.

Now, the startup’s board has fired its top executive, Toby Neugebauer, after months of negotiations failed to secure a single client. Chief Financial Officer Miles Everson left as well… Fermi’s stock, meanwhile, has tumbled 84% from its peak. The company’s more than 5,000-acre site in the Texas panhandle — dubbed Project Matador, or the President Donald J. Trump Advanced Energy and Intelligence Campus — remains mostly unfinished. And some analysts see a cautionary tale of the market’s AI enthusiasm running ahead of reality, with investors betting on companies whose grand projects may never get built…

The idea of giving data centers their own, dedicated power supply not dependent on the grid may sound tempting, but former US Department of Energy official Jigar Shah said banks don’t want to finance it. The grid, drawing power from many sources, is more reliable than a handful of expensive, on-site plants, he said. He considers Fermi a failure “of monumental proportions” and says similar, off-grid data center projects elsewhere deserve more skepticism than they’ve received… “We’re allowing these types of projects to continue to be viewed as viable when they most certainly are not,” said Shah, who ran the department’s Loan Programs Office during the Biden administration....

“It was a piece of dirt with a dream,” an investor who visited the site in February told the short sellers, Fuzzy Panda Research.

Solyndra story was always a lie.

By rbrander • Score: 5, Insightful Thread

Sigh. Yes. Yes, I do, because for TWELVE FREAKING YEARS, I’ve been having to find and copy this excerpt from the NYT story on it, November 16, 2014:

“Here’s another: Remember Solyndra? It was a renewable-energy firm that borrowed money using Department of Energy guarantees, then went bust, costing the Treasury $528 million. And conservatives have pounded on that loss relentlessly, turning it into a symbol of what they claim is rampant crony capitalism and a huge waste of taxpayer money.
Defenders of the energy program tried in vain to point out that anyone who makes a lot of investments, whether it’s the government or a private venture capitalist, is going to see some of those investments go bad. For example, Warren Buffett is an investing legend, with good reason — but even he has had his share of lemons, like the $873 million loss he announced earlier this year on his investment in a Texas energy company. Yes, that’s half again as big as the federal loss on Solyndra.
The question is not whether the Department of Energy has made some bad loans — if it hasn’t, it’s not taking enough risks. It’s whether it has a pattern of bad loans. And the answer, it turns out, is no. Last week the department revealed that the program that included Solyndra is, in fact, on track to return profits of $5 billion or more.”

Because investors don’t get advice from Fox

By rbrander • Score: 5, Interesting Thread

Investors can watch the nuclear industry trying hard with SMRs and thorium and traveling wave and pebble-bed, and NOT see industry getting the construction cost down below $10/watt. One hears tell that China is kicking reactors out the door in sixty months flat, at $4.50/watt. But then, China is an unreliable narrator about the greatness of China, and may be doing awful things to local environments. Even if they lean on our governments to ease up on nuclear (Trump sure would), halving the cost to $5/watt seems - well, unlikely: RISKY. And capital is a coward.

Meanwhile, investors are watching batteries and renewables get cheaper, steadily, are monitoring announcements from pilot plants and upstream to the labs, and must feel pretty confident that prices will KEEP getting cheaper, significantly so in the five-year minimum construction time for a reactor.

Nuclear is great, I was a champion for 50 years. But I can read an accounting ledger, and nuclear has been beaten.

color me shocked

By cpurdy • Score: 4, Funny Thread

“the President Donald J. Trump Advanced Energy and Intelligence Campus — remains mostly unfinished.”

Wow. That’s so … um … surprising.

Re:“A startup in hot industry-

By tragedy • Score: 4, Interesting Thread

Remember Solyndra?

Solyndra was a real product though. It came out just as solar panels were getting cheap and couldn’t compete with flat panels. They did do a number of things to bolster their apparent success, but they clearly were not created just to ride a financial bubble and bilk investors. Looking at their product, you can see how they could have reasonably thought they had a shot in the market.

Looking at Fermi, it is hard to see how anyone could have reasonably thought they had a shot. They never had a tangible product. On the other hand, they did make some effort to set up generation.

In the end, Solyndra sold actual product and Fermi didn’t. Maybe they can both fall under the category of being aspirational but unsuccessful, but the sheer lack of realism in the Fermi model makes me rate it much, much higher on the scam scale than I would Solyndra.

Re:Honestly Solyndra was blown out of proportion

By tragedy • Score: 4, Interesting Thread

The government lost about half a billion. Not chump change but a rounding error if you’re talking a serious attempt to get off oil.

Solyndra was just one part of the program. They made money overall.

Using Drones for Cloud-Seeding Can Trigger Rain, Company Claims

Posted by EditorDavid View on SlashDot Skip
Monday a company called Rainmaker announced their rain-triggering technology had produced 143 million gallons of freshwater for Utah and Oregon residents — making them “the first private company in history to validate the results of cloud seeding operations.”

The Deseret News reports:
Founded in 2023, Rainmaker uses drones to disperse silver iodide into clouds, then they track precipitation with advanced radar. However, Rainmaker — and every other rain-enhancement company — has been up against the notoriously difficult challenge of validation. Since there is no control set to test, and because the weather is chaotic and variable, the Government Accountability Office declares the benefits of the technology to be “unproven.” To overcome this evaluation challenge, Rainmaker flies drones in unique patterns when seeding. Then operators compare distinct radar and satellite features with where their drones operated.

As of April, Rainmaker found 82 unambiguous seeding signatures, which show their seeding operations directly caused precipitation. In Utah and Oregon alone, the company said its cloud-seeding efforts have added enough water to match the annual usage of about 1,750 households. However, “this figure likely represents only a small fraction of Rainmaker’s total generation this season,” the company said in their press release… Their drone precision, combined with their radar systems, have produced satellite images proving a direct correlation between the seeding and precipitation. Some images show cloud holes or regions of depressed cloud tops after seeding.
Rainmaker’s announcement promises they’ll “go forward and continue our mission to refill the Great Salt Lake, end drought in the American West and deliver water abundance wherever it is needed most around the world.” (Rainmaker currently operates in Utah, Idaho, Oregon, California and Colorado.)

The director of Utah’s Natural Resources Department told the Deseret News that with cloud seeding, “cost per unit of water is so low; it really is the smartest thing we can be doing with our money,” Ferry said.

What can go wrong?

By JcMorin • Score: 3 Thread
I’m sure there are no side effects of “dispersing silver iodide into clouds.”

Re:What can go wrong?

By thegarbz • Score: 5, Informative Thread

I’m sure there are no side effects of “dispersing silver iodide into clouds.”

There really aren’t. We’ve been doing this since the 50s. Every year some 11 tonnes of silver iodide is used for cloud seeding and has been for a long time. Incidentally this is less than 1% of emissions of this substance from industry. The impact of silver iodide (which is toxic) for cloudseeding (which is very low concentration) has been studied extensively since the 60s.

Here’s from a metastudy:
The potential environmental impacts of cloud seeding programs using silver iodide have
been studied since the 1960s. These studies have all concluded that ice-nucleating agents,
specifically silver iodide as used in cloud seeding, represent a negligible environmental hazard,
(i.e., findings of no significant effects on plants and animals), (e.g., Cooper & Jolly 1970; Howell
1977; Klein 1978; Dennis 1980; Harris 1981; Todd & Howell 1985; Berg 1988; Reinking et al.
1995; Eliopoulos & Mourelatos 1998; Ouzounidou & Constantinidou 1999; Di Toro et al. 2001;
Bianchini et al. 2002; Tsiouris et al. 2002a; Tsiouris et al. 2002b; Christodoulou et al. 2004;
Edwards et al. 2005; Keyes et al. 2006; Williams & Denholm 2009).

What if Tech Company Layoffs Aren’t All About AI?

Posted by EditorDavid View on SlashDot Skip
“Running a Big Tech company during Silicon Valley’s AI mania may not necessarily require fewer workers or cost less,” writes the Washington Post:
Amazon, Google and Meta together have roughly the same number of employees now as they did during an industry-wide hiring binge in 2022, company disclosures show. Growing costs for technical workers and related expenses have often outpaced sales recently. The tech giants’ big AI bet hasn’t yet paid for itself.

That means AI might be killing jobs not through its labor-saving wizardry but by increasing spending so much that CEOs are pressured to find savings, giving them cover to consciously uncouple from their workforces. Marc Andreessen, a prominent start-up investor and a Meta board director, put it bluntly on a recent podcast. Big company layoffs are a fix for overstaffing and changing economic conditions, he said, but AI provides a convenient scapegoat. “Now they all have the silver bullet excuse: ‘Ah, it’s AI,’" he said…

“Almost every company that does layoffs is blaming AI, whether or not it really is about AI,” Sam Altman, CEO of ChatGPT owner OpenAI, said at a March conference when he listed explanations for AI’s unpopularity in the United States.
“Recent history suggests Big Tech companies might not be moving toward a future with fewer workers,” the article concludes, “but recalibrating to spend the same, or more, on different people and projects.”

So in the end, “AI might soon reduce hiring,” the article acknowledges, “But the reluctance or inability of the largest tech firms to cut too deeply so far could also show that the path to making a workforce AI-ready — whatever that means — isn’t a predictable straight line charting declining headcount.”

Oh My God, this can’t be something that’s NEW

By Excelcia • Score: 5, Interesting Thread

The idea that all the “AI layoffs” aren’t actually because of AI, but are snow jobs… I thought this was so blatantly obvious as to be a tautology. This can’t be something that is just dawning on people, can it? Please tell me that this has been obvious to most people who can rub two thoughts together in a row.

layoffs happen because

By FudRucker • Score: 4, Insightful Thread
Employees are like cattle as soon as you make the profit quotas for your corporate overlords for the year then your job is up for review and if you’re expendable then you get laid off or fired if they can come up with a good enough reason to fire you, the people you work for don’t give a damn about you and your family

There is no general solution.

By couchslug • Score: 3 Thread

There are only individual adaptations whose outcomes are not guaranteed. Be genuinely versatile for your own benefits. If all you do is one “job” then you’re helpless without it.

That’s why I have zero economically useless interests or hobbies. If one makes the effort it’s not difficult to learn to repair, modify and maintain nearly everything you own. Any techy should enjoy that stuff and many do.

If you’re smart enough to be competent using computers you’re smart enough to learn vehicle repair, home maintenance and repair and much more. Tools often pay for themselves at first use. No need to be deterred by lack of space. I and many others who lived in dorms and barracks while doing all our own vehicle work are proof. Learn one discipline and you’ll soon notice related uses for your learning.

Unemployment may take you off your job but skills can buy time to adapt and change. For example my businessman neighbor was a skilled wood worker for the fun of it. When he lost his job he kept up his house payments (not cheap in the NY metro area) doing handyman work, cabinetry etc for several years. Without his hobbies he and his family would have been homeless. While I’d not want to do auto mechanics as a career it’s saved be buckets of cash over a lifetime, ensured I never went without a vehicle and was able to help others who in turn helped me. Life is a team sport and being capable is a fine way to meet other capable, interesting humans.

An Amateur Just Solved a 60-Year-Old Math Problem - by Asking AI

Posted by EditorDavid View on SlashDot Skip
Slashdot reader joshuark writes:
Scientific American reports that a ChatGPT AI has proved a conjecture with a method no human had developed. A 23-year-old student Liam Price just cracked a 60-year-old problem that world-class mathematicians have tried and failed to solve.

The new solution that Price got in response to a single prompt to GPT-5.4 Pro was posted on www.erdosproblems.com, a website devoted to the Erds problems. The question Price solved — or prompted ChatGPT to solve—concerns special sets of whole numbers, where no number in the set can be evenly divided by any other…

Price sent it to his occasional collaborator Kevin Barreto, a second-year undergraduate in mathematics at the University of Cambridge. The duo had jump-started the AI-for-Erds craze late last year by prompting a free version of ChatGPT with open problems chosen at random from the Erds problems website. Reviewing Price’s message, Barreto realized what they had was special, and experts whom he notified quickly took notice.

Re:Just means none of the experts cared enough

By JoshuaZ • Score: 5, Informative Thread
Mathematician here, and in the same area of research (number theory). This is not a problem where no one one cared. While there are some Erdos problems in this category, this problem is one which was well known enough that I was already familiar with. This is also a problem where multiple people, including Jared Lichtman, who is an up and coming well respected young number theorist, have thought about. And if you go to the page for problem 1196 on the general Erdos Problem data base, you’ll see three references all of which include references to further papers which thought about this problem. https://www.erdosproblems.com/1196.

Re:Just means none of the experts cared enough

By JoshuaZ • Score: 5, Informative Thread
Aside from them being almost certainly *not* correct here, given that there are a whole bunch of prior papers about this specific problem, you are confusing two different things. There’s having solved an Erdos problem which is different than having an Erdos number. An Erdos number https://en.wikipedia.org/wiki/Erd%C5%91s_number comes from having a chain of collaborators going back to Erdos. Erdos has Erdos number 0. Anyone who wrote a paper with Erdos has Erdos number 1. If someone else then writes a paper with someone with Erdos number 1 (and that person is not Erdos and does not have Erdos number 1) then that person now has Erdos number 3, and so on. And having an Erdos number is not a big deal. I for example, have an Erdos number. Most working mathematicians in number theory and graph theory have some Erdos number, and many in other subfields do as well. Having a *low* Erdos number though is more impressive, but even then people care much more about what results one has proven (with or without Erdos) than one’s Erdos number. They really are a fun social thing and nothing more.

Re:Just means none of the experts cared enough

By JoshuaZ • Score: 4, Informative Thread

If you are a mathematician, you should be able to see the difference between “nobody cared enough” (my claim) and “no one cared” (your gross mis-statement of my claim).

Sigh. Why am I not surprised that you’ve responded this way. Let’s be clear then: You can replace my comment I wrote earlier with the word “enough” added just at the end and everything I wrote would still be true. Your statement is just wrong, and it is wrong for exactly the reasons I outlined.

Re:Pardon my mathematical ignornance, but

By JoshuaZ • Score: 4, Informative Thread
So, the problem is about primitive sets, sets where no element of the set is a multiple of another element. You do have a partially correct intuition here. The canonical example of a primitive set is the set of primes. Buy you can give other examples of primitive sets. For example, you could take the set of primes, remove 2 and 3, and then throw in 4, 6 and 9 into the set. Notice that if I compare this to the set of primes less than 10 which are just 2, 3, 5 and 7, whereas this new set has 4, 5, 6, 7, 9 and so has one additional small element. But the problem in question is one of a series of conjectures which all together say in a certain sense that primitive sets cannot end up being much denser than the set of primes.

Re:Just means none of the experts cared enough

By JoshuaZ • Score: 4, Insightful Thread

It is fascinating which people get math degrees these days. Apparently logical thinking is not a requirement anymore.

“Logical thinking” is not synonymous with “agrees with gweihir” as much as you would like them to be.

Ok, let me spell it out for you: The information was out there and could be combined in a purely mechanical, no-insight-required way to provide the answer. Nobody cared enough to find it and try that. Is that clear enough or are you still bereft of understanding?

What you are spelling out and claiming here is just not true. The approach the AI took was *different* than the approach that the literature did. You don’t need just my opinion on this. Terry Tao (who is a Fields Medalist) and Jared Lichtman (who is one of the best of the young new number theorists who had previously published work on this and related problems) both disagree with you https://www.scientificamerican.com/article/amateur-armed-with-chatgpt-vibe-maths-a-60-year-old-problem/. If the people who have looked at this in detail and are subject matter experts disagree with you, maybe you it should, possibly occur to you that are wrong here?

Costumed Crowd ‘Speedruns’ Scientology Building For Social Media Trend

Posted by EditorDavid View on SlashDot Skip
Last Saturday someone dressed as Jesus “was among the dozens of people in costumes and masks seen on a video forcing open the door of a Scientology building on Hollywood Boulevard,” reports the Los Angeles Times, “after a tug-of-war with a security guard.”
The footage posted on TikTok and Instagram shows the group sprinting up and down stairs and clashing with black-shirted security guards, giggling and gasping to catch their breath while church members scream at them to leave. On their way out — as security guards approach armed with fire extinguishers — one of the sprinters stops and dances to celebrate their successful escape, a move reminiscent of a taunt from the video game Fortnite. For weeks, groups of people have barged into two of the church’s Hollywood properties, racing through hallways and tussling with security guards, trying to see how far they can get before they are forced to leave by church staff…

Church officials say the incidents are not a game and have accused the speed runners of “hate crimes.” After dozens on Saturday stormed the Ivar Avenue building that houses an exhibit dedicated to the church’s founder, science fiction author L. Ron Hubbard, the external door handles were removed from all three of Scientology’s properties on Hollywood Boulevard by Sunday morning. Guards could be seen blocking the doorway to one building on Monday afternoon…

No arrests have been made.
A report from the Associated Press cites a joke left on one of the videos: that if runners reach the top of the building, they’ll find Tom Cruise.
One commenter on a recent TikTok video of a speedrun asked why people are doing this, and another user simply replied, “because it’s fun.”
The 18-year-old who started the trend told the Hollywood Reporter his original video has been viewed over 100 million times. “From there on out, I pretty much knew that Scientology was like a free gateway to a lot of views.”

Vulture notes that “there’s even a Roblox re-creation of the trend, made using the ‘maps; drawn from actual videos”

Hey, that’s not nice

By RitchCraft • Score: 5, Funny Thread

Let’s be mindful of their religion and ask ourselves, “What would Tom Cruise do?”

Well, let’s think about that

By Excelcia • Score: 5, Insightful Thread

A sad commentary on some people’s morality that they think this is okay. What ever happened to the “golden rule?”

Well, on the other hand, if it was an actual “religion” rather than a sci-fi writer’s spoof of one I might have more sympathy. The thing is so bizarre that it is a living example of Poe’s law - you literally can’t tell the difference between Scientology and a spoof of Scientology.

So, sure, get all hot and bothered about the morality of this, but a group of people making fun of something that’s indistinguishable itself from making fun, is pretty morally neutral actually.

Re:I bet

By mr100percent • Score: 5, Interesting Thread

Almost all mosques are open to the public and welcoming. If they tried it they’d be told to stop running, would they like to sit down and have some tea?

Re:Dangerously stupid stunt

By rsilvergun • Score: 5, Interesting Thread
They aren’t just litigious they are known to hire private investigators and outright thugs to hassle and intimidate people.

It’s not so much that this is dangerous anyone taking part in this knows damn well what they’re getting into.

This is what the cool kids call getting into good trouble. It’s protest meant to draw attention.

That said Scientology is really on the ropes right now with collapsing membership and because of the internet it’s difficult for their silly brand of nonsense to get much play. So there were probably better targets and better things for the protesters to do but it might have been personal if one of their friends or family members got stuck in the cult or themselves personally.

I know there are a lot of EX Jehovah witnesses trying to get people out.

Re:questionable

By ceoyoyo • Score: 4, Interesting Thread

Google is your friend. In the US the IRS recognizes it as a religion, as does the DOD. Other countries are more skeptical.

This is some science fiction fantasy bullshit dressed up like religion and operating more like a cult.

You’ve just said “religion” three ways: a descriptive phrase, a noun and another noun.

Retina Scan for Diabetes Could Also Reduce Deaths During Pregnancy in Developing Countries

Posted by EditorDavid View on SlashDot Skip
This week Bill Gates wrote a blog post about a special camera from medtech startup Remidio, which delivers high-resolution images of a patient’s retina in seconds. The camera plugs into a phone running an AI system that watches for early signs of diabetes — all without needing a blood draw, eye dilation, or a dibetes specialist. It’s already been used in 40 countries for more than 15 million patients.
But that same hardware, with different software, can also flag the conditions that drive so many dangerous pregnancies. Gestational diabetes sharply increases the risk of pre-eclampsia [a spike in blood pressure during pregnancy responsible for half a million fetal deaths every year and 70,000 maternal deaths]… In most of rural sub-Saharan Africa or South Asia, it usually isn’t screened for at all, because the standard test requires a lab. A retinal scan offers a different way in.

Remidio’s device is currently being used in India to screen pregnant women for conditions that drive stillbirth. And researchers are now adapting the same hardware to screen for anemia and hypertension, too… [S]mall, portable, affordable diagnostics in the hands of community health workers are exactly the kind of lever that can start to move a number that hasn’t moved in a long time.

Blood sugar and eyeballs

By Hadlock • Score: 3 Thread

Apparently your blue sensing photoreceptors in your eye are super sensitive to blood sugar, and you could do a blood sugar test with a color calibrated phone app having people compare two shades of blue side by side. If you can’t tell them apart, your blood sugar meets/exceeds/is below a certain threshold. It’s not hyper accurate but useful for diabetics.

Linux Percentage of Steam Users Doubled in One Year

Posted by EditorDavid View on SlashDot Skip
Steam on Linux use in March “had skyrocketed to 5.33%…” reports Phoronix, “easily the highest level we’ve seen Steam on Linux at since its inception more than a decade ago.”

So what happened in April?
[April’s results] point to Linux having a 4.52% marketshare on Steam, a drop of 0.81% compared to March. Year-over-year it’s roughly double with Steam on Linux in April 2025 being at 2.27%. Or two years ago for April 2024, Steam on Linux was at 1.9%.

AI killed desktop Linux

By rsilvergun • Score: 3 Thread
The big push was going to come when the steam machine hit but that’s dead in the water for at least 5 years. Ordinarily somebody would step in and make more memory but because we don’t enforce antitrust law nobody can take that risk because you know that if you try one of the big memory manufacturers is just going to drop their prices and run you out of business.

It’s possible that America becoming a basket case will force Europe to switch to Linux. But there’s going to be a lot of money thrown at European politicians to stop that and even without that the world is taking a huge global economic hit and Microsoft can just give free software and support to Europe for a little while and with the economy and freefall everybody is going to be looking to cut costs anyway possible so little things like national security are going to be less important versus immediate economic security.

Also the billionaires are still in charge and they still want to surveil us and so an open source operating system where you can turn off that surveillance is going to face a lot of challenges. And like it or not a large percentage of people who claim to be libertarian when it comes time to pull the lever at The ballot box don’t vote for freedom they vote for whatever little moral panic or pet issue they’re obsessed with. Or they get confused by entertaining propaganda and the end result is the same.

If you want a viable competitor and more options you are going to have to change how you vote and you’re going to have to get some of your family members to change how they vote. Because at this point it’s not a technical issue it’s a political issue.

Of course except for politics nerds nerds in general really really really hate being told that there is a problem you can’t just fix with technology. Hell even the politics nerds will quote Harry Selden at you.

Steam enabled me to move to Linux

By infosinger • Score: 5, Interesting Thread

With some minor exceptions, gaming was the only thing keeping me on Windows. Steam broke this blockade. I still keep a Windows laptop that I use in the spring to run Turbotax.

Interesting Details

By SlashbotAgent • Score: 3 Thread

Yay! 4.32% blah blah blah.

But, it’s more interesting, to me, to see that Arch is the second most used distro. It’s second to a bunch of Ubuntu flavors.

Re: Steam enabled me to move to Linux

By ichthus • Score: 4, Informative Thread
Who needs a 90-day evaluation? Likely, your computer came with a Windows key. Use it. In Linux, you can extract it from the command line.

sudo strings /sys/firmware/acpi/tables/MSDM

This key works fine when installing a VM.

Marvel, DC, Game Publishers Launch Rival Events Saturday for Free Giveaways

Posted by EditorDavid View on SlashDot Skip
The once-a-year free comic book giveaway “is splitting in two,” according to a local news report.

Launched in 2002 by Diamond Comic Distributor, comic book giants like Marvel and DC have historically participated together. But things changed after Diamond Comic Distributors went bankrupt in 2025, “leaving other companies to swoop in and pick up where Diamond left off.”
The rights to the “Free Comic Book Day” brand were sold to Universal Distribution, which plans to bring Free Comic Book Day back on Saturday. On the same day, Penguin Random House plans to launch a rival event called Comics Giveaway Day. This means you’ll still get plenty of free comics, but this time they will be separated, with some coming under the Free Comic Book Day branding and others arriving under the Comics Giveaway Day branding. Free Comic Book Day will include publishers like DC, Image, Dynamite and Archie Comics. Comics Giveaway Day will include publishers such as Marvel, Dark Horse, Boom! Studios and Tokyopop…

The other big change coming this year is the introduction of game publishers Wizards of the Coast and Upper Deck to the lineup, as part of Universal Distribution’s Free Comic Book Day. Wizards of the Coast is known for its tabletop role-playing game Dungeons & Dragons, as well as its trading card game Magic: The Gathering. Upper Deck is best known for its sports trading cards and entertainment collectibles, along with deck-building games like the Legendary series…

In addition to adding these game makers, Universal plans to expand Free Comic Book Day to include what are colloquially referred to as your friendly local game stores.
Marvel’s offerings this year include a special Alien, Predator & Planet of the Apes one-shot, while D.C. is offering the first chapter of their upcoming graphic novel Aquamanatee. Other comics include Avatar: The Last Airbender — Legends from Dark Horse Comics and Sonic the Hedgehog from IDW Publishing.

Aquamanatee?

By Petersko • Score: 4, Funny Thread

I had to check the calendar to make sure it wasn’t April 1.

GameStop Is Preparing Offer For eBay

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GameStop is reportedly preparing a potential offer for eBay, an unusually ambitious move given that eBay’s roughly $46 billion market value is nearly four times GameStop’s. Reuters reports:
GameStop is preparing an offer for eBay as CEO Ryan Cohen pursues plans to boost the struggling videogame retailer’s market value more than tenfold, the Wall Street Journal reported on Friday. Shares of eBay, which has a market capitalization of about $46 billion, soared about 14% in extended trading. GameStop gained 4%. The company has a market value of nearly $12 billion.

GameStop has been quietly building a stake in eBay’s shares ahead of a potential offer, the report said, citing people familiar with the matter. If eBay is not receptive, Cohen could decide to take the offer directly to the e-commerce company’s shareholders, the Journal said.

Re:Why would you buy a dead company… 2000’s is g

By martin-boundary • Score: 4, Interesting Thread
Amazon is way too expensive for most things. eBay has a wider range of competing providers, local and international, and doesn’t do dynamic pricing the same way Amazon does.

Re: Why would you buy a dead company… 2000’s is

By DeanonymizedCoward • Score: 4, Insightful Thread

I’ve had more of the opposite problem with eBay. Selling there kind of sucks, unless you’re selling brand-new Amazon style items and prepared to offer a full warranty and free returns.

Selling anything used or asâ"is is a shit show, because idiots will just click “buy now” on mobile without reading the description or condition, then return it when it’s not new/sealed, and assholes will buy things like TV parts “sold as-is” then return it after they find out that the power supply is bad and now they blew the ass out of the mainboard they bought to try it.

eBay offers little recourse in these cases. Sometimes they’ll refund the return shipping. You can ban buyers, but nothing stops them just making a new account, especially now that buyer feedback is essentially meaningless. The bright side is, the seller has the buyer’s address for.. let’s just go with “their records.”

So like American “democracy,” it’s shit, but most of the alternatives are worse.

Re: Why would you buy a dead company… 2000’s is

By crivens • Score: 4, Interesting Thread

Bingo! So $10B EBITDA but at what cost. Spend $12B to get $10B? It’s madness. Just more insanity in the world of CEOs, while the regular folk suffer.

Let me guess

By Dirk Becher • Score: 3 Thread

They will offer 4 billion for it, then try to sell it for 40.
Or maybe accept 10 ebays for a 10% discount on Sony?

New Lithium-Plasma Engine Passes Key Mars Propulsion Test

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NASA engineers have tested a next-generation lithium-plasma electric propulsion system that reached 120 kilowatts, a new U.S. record and about 25 times the power of the electric thrusters on NASA’s Psyche spacecraft. “Designing and building these thrusters over the last couple of years has been a long lead-up to this first test,” said James Polk, who is a senior research scientist at NASA Jet Propulsion Laboratory. “It’s a huge moment for us because we not only showed the thruster works, but we also hit the power levels we were targeting. And we know we have a good testbed to begin addressing the challenges to scaling up.” Universe Today reports:
While 120 kilowatts is a new record, NASA estimates it a future human mission to Mars will require 2 to 4 megawatts of power consisting of several thrusters and requiring more than 23,000 hours (958 days/2.6 years) of operation. To accomplish this, the thrusters would have to withstand more than 2,800 degrees Celsius (5,000 degrees Fahrenheit), which the thrusters achieved during testing.

The reason for the extended operation is due to the estimated time of an entire human mission to Mars, which is estimated to be approximately 2.6 years. This is because the launch window to Mars only opens once every two years due to the orbital behaviors of both planets. While no mission has ever returned from the Red Planet, this same launch window works from Mars to Earth, too. When launched within this window, robotic spacecraft have traditionally taken approximately 6-7 months to reach Mars.

However, a human mission would require a much larger spacecraft to accommodate the astronauts, food, fuel, water, and other mission-essential items. For the approximate 2.6-year mission, this would entail approximately 6-9 months traveling to Mars, followed by approximately 18 months on the surface of Mars until the next launch window opens, then another approximate 6-9 months back to Earth. However, having much less fuel due to the electric propulsion system could potentially alter this timeframe.

Mars is waste of resources.

By Lavandera • Score: 5, Insightful Thread

We should build industry on the Moon first and do cheaper robotic exploration.

And save the Earth - the only livable planet we will have in the near future…

Re:Not 2.6 years of operation

By 93 Escort Wagon • Score: 4, Funny Thread

Why are the thrusters running during the 18 months at Mars?

It’s needed for the Purnell Maneuver.

Re:120 kW

By Tailhook • Score: 4, Informative Thread

The 120kW figure is indeed input power. Thrust is typically quoted in Newtons, not Watts. The input power is useful because it’s a proxy for thrust and vastly easier to measure. Ultimately, none of that really matters, however: the real figure of merit for ion engines (all rockets, really) is Specific Impulse. When NASA claims these use 90% less mass for the same total impulse, they’re saying it’s about one order of magnitude more propellant-efficient than a chemical rocket.

It would be very tough to return to Earth

By olddoc • Score: 3 Thread
Over 2.5 years you would have 1 year of almost no gravity and 1.5 years of 38% gravity. I can’t imagine going back to Earth and walking around in 1G after all that time losing muscle.

Re: Mars is waste of resources.

By Ol Olsoc • Score: 4, Interesting Thread

Much to master before human travel to Mars. A nifty engine though could be useful for other space exploration. Robots probably better priority for initial explorations.

Yup, to make it even feasible, it is going to be a many generation effort. many hundreds of years, if we’re doing anything other than a dash to Mars, then a two year exploration/survival effort, followed by a two year dash back.

Even the dash concept is no where near ready.

So let us take the Starship concept. First we have to get Starship working here. Then we have to set up some infrastructure on Mars. Landing facilities like the grabber need built and delivered to Mars, and fuel generation/storage facilities must be constructed and shown to work. Then a place to house the settlers must be found or constructed. The futuristic 3-D renderings are a pipe dream for the far future - initial settlers will most likely live in caves. Earthmoving (Marsmoving?) equipment must be designed and developed that will operate on Mars.

So right off, we see an issue. A sort of chicken and egg problem exists. Getting the starships safely down to Mars requires lot of infrastructure already built onsite. The nuts and bolts issues are all pretty daunting.

Frankly, if we are at all serious about colonizing Mars, we should start off with the small but critical (and doable) step of providing Mars with a synthetic magnetosphere, because if our eventual plan is to create an atmosphere, we have to stop the solar wind from stripping the atmosphere away.

Amazon Stuck With Months of Repairs After Drone Strikes On Data Centers

Posted by BeauHD View on SlashDot
An anonymous reader quotes a report from Ars Technica:
Amazon’s cloud customers will need to wait several more months before the US tech company can repair war-damaged data centers and restore normal operations in the Middle East. The announcement comes two months after Iranian drone strikes targeted three Amazon data centers in the United Arab Emirates and Bahrain — meaning that full recovery from the cloud disruption could take nearly half a year in all. The Amazon Web Services (AWS) dashboard posted an April 30 update describing how its UAE and Bahrain cloud regions “suffered damage as a result of the conflict in the Middle East” and are unable to support customer applications. The update also said that “relevant billing operations are currently suspended while we restore normal operations” in a process that “is expected to take several months.”

That wording suggests Amazon will continue to avoid billing AWS customers in the affected regions — ME-CENTRAL-1 and ME-SOUTH-1 — after it initially waived all usage-related charges for March 2026 at an estimated cost of $150 million. AWS also “strongly” recommended that customers migrate resources to other cloud regions and rely on remote backups to restore any “inaccessible resources.” Some customers, such as the Dubai-based super app Careem—which offers ride-hailing, household services, and food and grocery delivery — were able to get back online quickly after doing an overnight migration to other data center servers.

Re: They are referring to the Persian Gulf

By ArchieBunker • Score: 5, Insightful Thread

Which law is Iran breaking to make this closure “illegal”? I know a guy with 34 felony counts plus some sex crimes walking free. He isn’t an immigrant either.

Re:Strange story.

By ArchieBunker • Score: 5, Informative Thread

We had a working deal with Iran. https://obamawhitehouse.archiv…

A senile cult leader tore it up and here we are. https://en.wikipedia.org/wiki/…

Re:Strange story.

By phantomfive • Score: 5, Interesting Thread

Iran is a death cult who would be perfectly happy killing as many people as necessary to get their way.

Iran overall is a great country. If they can ever get their politics figured out, they will make huge contributions to the world in science, economic growth, and art.

The IRGC is a bunch of narcissistic thieves, having taken over most of the country’s budget and killing far more of their own citizens than Trump has. They are not a death cult because they are enjoying the money they’ve gotten too much. As soon as they are gone (or lose power) the world will be a better place.

Re:Strange story.

By Vlad_the_Inhaler • Score: 5, Informative Thread

If Trump wanted there would be literal rivers of blood in Iran. Instead it’s only the odd supreme leader or 2 and some ancillary support staff pushing up daisies.

What about the 150+ Grade School kids who were at the business end of a Tomahawk missile on about the first day of the US’s attack? The Revolutionary Guard had been stationed there around a decade earlier and the US had never got around to updating their maps.

Re:Strange story.

By ArchieBunker • Score: 5, Insightful Thread

You gave zero fucks about Iran until dear leader instructed you.