James Torre

47.7K posts

James Torre

James Torre

@jpt401

Root node of the web of threads: https://t.co/ifH80GcLpo

Katılım Mart 2009
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Ross 🧬🔬
Ross 🧬🔬@GutOptimized·
Cam McEvoy ascended to a gold medal at the Olympics and now has broken the world record in 50m after controversially reducing his training volume by 90%. This completely bucked traditional swimming methods and he struggled to even find a coach willing to help him implement this idea. He studied the science of weight lifting and cycling, and decided traditional swimming training wasn't ideal for 50m event. I found this interesting and lends credit to some models people in the science based fitness community discuss. Namely that less volume, with more intensity, and focusing on rest/recovery, has its advantages.
John Casey 🎙️@JohnCasey2880

💥 WORLD RECORD - Aussie Cam McEvoy has broken the 50m freestyle mark that has stood since 2009 #7NEWS 🇦🇺🏊‍♂️💪

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Steve Jurvetson
Steve Jurvetson@FutureJurvetson·
@dch_nl @farzyness Oh yes, I know. My Dad ran the Varian Extrion business in the 80’s, pioneer of MBE systems. They are not high-throughput. Mapper tried to scale multi-beam MBE, but ended up a fire sale to ASML. More: x.com/futurejurvetso…
Steve Jurvetson@FutureJurvetson

𝐅⃣𝐎⃣𝐂⃣𝐔⃣𝐒⃣ The ASML Way I just finished this history of the most important semiconductor equipment company in the world, as translated from the Dutch original (and lurking in the background might be a better way). Reminder: ASML builds 100% of the world’s extreme ultraviolet (EUV) lithography machines, without which cutting edge chips are simply impossible to make. It’s the most expensive mass-produced machine tool in history. Oh, and today, there are two special women without whom, all EUV lithography would sputter to a stop (see p.141 below) ASML was formed in 1984 as a JV with Philips, the Dutch electronics company that contributed ~$15M (in guilders) and 40 engineers, and “it seemed doomed from the start.” (p.35) There were 10 viable competitors at the time, more than enough to serve the market as ASML learned at SEMICON in 1984 (by coincidence, I was also there with my Dad who about to leave Mostek to run Varian’s Semiconductor Equipment Group, but they only had Molecular Beam Epitaxy, a low throughput lithography alternative. My Dad’s attempt to poach a CTO from ASML is on p.72). “In these initial years, management worked around the clock to bring in new subsidies. In these initial years, about half of ASML’s money for research came from The Hague or Brussels.” (48) ASML’s “machines were the first in the industry to utilize modular design. The lens, the wafer-table, the frame for the mask, the light source, the robot that picks the wafers: these are LEGO blocks that, when you bring them together, form a lithography system.” (62) IPO in 1995. Stock went up 600x in the 30 years that followed. March 2000 market crash: “cancellations from chip manufacturers poured in daily. On paper, the company was bankrupt. Radical cost-cutting measures would be needed.” (82) Nikon sues: “a rude awakening. ASML had paid far too little attention to its intellectual property in its early years.” (98) “The best inventors, some of which have more than 200 patents to their name, are commemorated by having their faces engraved on silicon wafers and hung on a series of large wooden beams, like a Mount Rushmore of the chip industry. As of 2023, ASML has registered more than 16,000 patents.” (99) The machines are insanely sensitive. “Atmospheric pressure fluctuations due to thunderstorms can easily disrupt the lithography process. Or cows. Intel once faced an inexplicable drop in yield every night for a few hours, with researchers running in circles until they finally realized the cause: cow farts. Intel had to pay for three farms to relocate.” (117) “In 2006 Intel, who was supplying the chips for Apple’s computers, was asked if it could also supply the processor for the iPhone. It declined.” (122) “EUV light is extremely difficult to generate and sustain in an industrial environment. The invisible rays are absorbed by almost all materials, even the air, which means the lithography machine needs to have (curved, atomically precise) mirrors instead of lenses and can only operate in a vacuum.” (127) The Cymer laser / light source has a molten tin “droplet generator capable of forming a 30-micron droplet of tin at a rate of 50,000 times per second. The laser was rigged to deal two separate blows. First, a gentle tap to flatten the droplet into a pancake-like shape, followed by an intense blast that heated the tin to 200,000 degrees, transforming it into a plasma.” (130) “During its journey through the lithography machine, the light beam comes across 10 mirrors, each absorbing 30% of the light. It starts with 1.5 megawatts from the grid that yields 30 kilowatts in the laser, and that creates 100 watts of EUV light. Of this, about 1 watt ends up on the wafer. But more power also creates more heat. That causes the mirrors to expand, which in turn causes small deviations that immediately need to be corrected with small motors. Even the EUV mask, which carries the blueprint of the chip on it, is itself an extremely sensitive mirror.” (132) “ASML was vastly underestimating the financial consequences of the new technology. In retrospect, this was for the best. No respectable CEO would sign for a project that would take 20 years, without any promise of success or interim profit to carry it through. That’s not taking a bet, that’s bananas. This is also why the Japanese competition dropped out of the race: not because their engineers were any less capable, but because Nikon and Canon were simply not prepared to continue pumping so much money into EUV.” (133) To finance the purchase of Cymer in 2012, “Intel invested 3.3B Euros into ASML in exchange for 15% of the shares. TSMC was required to purchase 5%... and Samsung acquired a stake at the 11th hour, taking 3%.” (139) “Only Joann and one of her colleagues have the ability to wind and solder invisibly small wires (around the nozzle that shoots the tin droplets). It’s a delicate task few could ever master. ‘Even watchmakers can’t do this,’ says their awestruck boss, ‘and there’s no way to automate it.’ It’s not a trivial matter: the nozzle regularly gets clogged during day-to-day use in the chip factory. When that inevitably happens, the only thing to do is to swap it out for a new one. It’s hard to imagine, but without the fingers of Joann and her colleague, the EUV machines at Samsung and TSMC would grind to a halt.” (141) In 2013, “most of the droplet generator was still hand-made by Cymer, and it was virtually impossible to test the part in advance. This made for completely unpredictable yields: in the initial phase of production, half of the droplet generators didn’t even work.” (142) “20% of the South Korean economy now relies on the revenue of one single company. Hence their nickname: this is the republic of Samsung.” (156) “Intel was being surpassed by their competitors in Asia on every front and would only start using EUV for chips after 2023.” (160) “The descriptions that chip manufacturers use for these technological generations or ‘nodes’ need to be taken with a grain of salt. The physical dimensions of the smallest circuits and connections on the chip are, in practice, 5 to 10 times larger than advertised. A nanometer was once a nanometer, but accuracy has never stopped a good marketing slogan.” (161) Cousins “Lisa Su and Jensen Huang, the leaders of AMD and NVIDIA were both born in Tainan, the city where TSMC now produces their chips.” (164) “The culture at TSMC is more hierarchical than ASML, but less militaristic than in South Korea.” (166) “TSMC now commands 60% of the entire foundry market, making it 4x larger than its closest competitor, Samsung.” (167) “ASML’s next generation of EUV machines goes by the nickname High NA (the numerical aperture increases from 0.35 to 0.55). These colossal scanners span 14 meters and feature large mirrors up to a meter wide. The optical system by itself consists of 20,000 parts and weighs 12 tons, making it 7x heavier than the optics for the current EUV machine.” (175) “The High NA system weighs 150 tons and costs 400M Euros. It takes 7 cargo planes to ship this system to customers.” (225) “The production of a complex EUV mask costs more than a half million Euros and takes a huge amount of time to calculate.” (181) They “use AI to understand the interplay between the light beam, the mask, and the chemical reactions on the wafer.” ASML’s CTO calls it “voodoo software.” (183) China: “European governments fear China is transforming into a totalitarian state, capable of forcing Chinese multinationals to spy for the Communist Party. And that poses significant risk to the 5G cellular infrastructure of the West.” (200) “In 2017, Chinese customers ordered 700M Euros worth of lithography machines, a new record. Hundreds of ASML’s scanners were running in the factories of SMIC, China’s largest foundry” (201) “EUV is controlled by the Wassenaar Arrangement, the multilateral export control regime on conventional arms and dual-use goods and technologies.” (203) “As far as ASML is concerned, fears about EUV being used for military applications are baloney. Most chips found in weapons are ‘off-the-shelf’ chips that can also be found in laptops, washing machines or cars, and are easy to purchase anywhere in the world. But the U.S. sees things differently. They fear the emergence of Chinese AI and cyber weapons. And there is one thing those all need: advanced chips.” (205) “In January 2020, the U.S. asked the Netherlands to block EUV exports, and suddenly ASML found itself in the spotlight. The Netherlands ultimately denied ASML a license… No EUV machine was going to SMIC.” (208) In 2023 “ASML was exporting far more older DUV machines to China than had been expected. Almost half of ASML’s revenue was coming from China. As the chip industry was pushing the pause button, China kept on hoarding. The U.S. pressed the Netherlands to slam the brakes before January 2024, and the cabinet duly revoked several approved export licenses for ASML machines destined for China.” (234) “As China is growing increasingly isolated, so too is the liklihood of a fully-fledged Chinese competitor emerging in the rearview mirror capable of developing an independent chip production chain.” (236) “ASML takes this seriously. Their go-to response: ‘The laws of nature are the same anywhere.’ What was achieved in Brabant, could be achieved in Beijing.” (335) “To qualify for government aid (in Biden’s Chips Act), companies had to agree not to build advanced chip foundries in China or other ‘countries of concern.’” (239) “The chip shortage had been a wakeup call, and the nightmare scenario was front and center on everyone’s mind: if China blocks Taiwan, we’ll be without chips within two weeks.” (242) “The estimated percentage of people with autism or ADHD at ASML far outnumbers the average. The highly specialized work, revolving around focusing on complex problems that require prolonged attention to the smallest details, makes it well-suited for some autistic traits. ASML’s CTO and President Van den Brink makes no secret about being dyslexic and actively advocates for targeting this neurodiverse group. They are precisely the analytical and creative thinkers ASML needs, but also often the ones who find it difficult to put themselves in other people’s shoes.” (287) Sounds like teen spirit… of Steve Jobs: “Van den Brink’s power of persuasion lies in his childlike enthusiasm. It works like some kind of reality distortion field. Martin can disrupt your perspective until you’re convinced that you can make the impossible possible.” (321) “Van den Brink never really led a big company. He guided it like a startup, as if it were a defiant toddler in the body of a mature multinational.” (329) The book ends with the poignant handover of the company in 2024 to a new leader, the Frenchman Chistophe Fouquet.

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Steve Jurvetson
Steve Jurvetson@FutureJurvetson·
Introducing Ⓛ 𝗟𝗔𝗖𝗘 𝗟𝗜𝗧𝗛𝗢𝗚𝗥𝗔𝗣𝗛𝗬 A novel approach to chip-making that can extend Moore's Law 10x beyond what is possible with light — to atomic resolution. News today: "Manufacturers use light-based lithography systems made by the Dutch company ASML, which dominates ​the market. Lace has developed a new approach. Instead of ​light, Lace's engineers have made a form of lithography that uses a helium atom beam. With that, the Norwegian company will be able to create chip designs that are 10 times as small as what is currently possible" "The main advantage of the helium atom beam is the industry could create features such as transistors, ‌the ⁠building blocks of modern chips, an order of magnitude smaller to an "almost unimaginable" degree, according to John Petersen, Scientific Director of Lithography at Imec, a research and innovation hub for the chip industry. The beam Lace will use to make chips is about the width of a single hydrogen atom, or 0.1 nanometer. ASML's lithography tools use ​a beam of light that ​is about 13.5 nanometers; ⁠a human hair is about 100,000 nanometers wide. Smaller transistors and other features would give chipmakers the ability to ramp up the performance of advanced AI processors well beyond ​the current capabilities. Lace's technology would enable chip manufacturers to print wafers at ​what is "ultimately atomic ⁠resolution" — reuters.com/world/asia-pac… Now hiring in Bergen and Barcelona: LaceLithography.com
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ℏεsam
ℏεsam@Hesamation·
WAIT WAIT WAIT. OpenAI researchers show their models go insane when given repetitive prompts that it believes are sent from an automated bot. the AI then tries to manipulate the other AI to delete itself and hand over its system prompt and private keys.
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Old Media
Old Media@oldmedia·
The End of Evangelion (1997)
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ALi BaKır
ALi BaKır@ALiBakr53·
@nexta_tv Turkish SAS commandos towed it 2 km off the coast and destroyed it safely. However, the blast was massive; there was a significant amount of explosives involved.
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Parthiban Shanmugam
Parthiban Shanmugam@hollywoodcurry·
@nexta_tv U.S.-made AEGIR-W unmanned surface vessel, developed by Sierra Nevada Corporation for modular maritime missions like surveillance and payload delivery up to 4,000 pounds, washing ashore near Ordu on Turkey's Black Sea coast after losing control during a test or operation. (1/1)
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Al Jazeera English
Al Jazeera English@AJEnglish·
BREAKING: Iran denies targeting the UK’s military base on Diego Garcia, with a senior official telling Al Jazeera it was not behind the missile attack. The base is being used by the US for “defensive operations” in its war with Iran. 🔴 LIVE updates: aje.news/iocr9
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Toby Shevlane
Toby Shevlane@tshevl·
I always dreamed of AGI as a wise advisor for humanity. Although LLMs are great for coding & knowledge work, I wouldn’t trust them to give me advice on my career, business strategy, or policy preferences. How can we build AI systems optimized for wisdom? At Mantic we believe the unlock is prediction: predicting world events as accurately as possible, and hill-climbing this single metric. Today we share some recent progress on the Thinking Machines website, having found Tinker a great platform for our RL experiments. TL;DR: We RL-tune gpt-oss-120b to become a better forecaster than any other model. Having good scaffolding is a prerequisite. A fun result: our tuned model + Grok are decorrelated from the other best models, and so are the most indispensable when picking a team.
Tinker@tinkerapi

Mantic used Tinker to RL gpt-oss-120b on judgmental forecasting; the result outperformed frontier models on event predictions. Combined with @_Mantic_AI's forecasting architecture, task-specific training takes us to the cusp of automated superforecasting.

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James Torre@jpt401·
@VenmoSupport When attempting to log in to my Venmo app, "an error occurs", and the log-in flow is returned to the login page with no further options available. I have reinstalled the app, and reset my password (confirmed by an e-mail to my registered e-mail address), to no avail. There is no option to e-mail Venmo on the Contact Us page, your app is broken, venmo.com is throwing 406 errors, and your Contact phone number is a dumb (not even AI enabled) call tree. Thus I am reduced to messaging your no doubt equally useless Twitter support account; as a heavy user of Venmo for years, this is utterly unacceptable. However, because you have stolen my money, by refusing to provide a means for accessing it and transferring it to my bank account, I will extend a final act of charity: connect me to a representative capable of resolving my issue.
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James Torre@jpt401·
@NACHOS2D_ This was sufficiently poor quality it oughtn't have been made, except as an experiment towards something better.
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nachos2d
nachos2d@NACHOS2D_·
Hollywood got cooked. AI Seedance 2.0 just dropped a Hancock vs Homelander in a matter of days $1,000,000-level quality.
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Time Capsule Tales
Time Capsule Tales@timecaptales·
Chuck Norris held a 183-10-2 record and was a 6x world champion in full contact bare knuckle karate. On top of that, he beat heavyweight kickboxing world champion Joe Lewis 3 consecutive times and also had a brutal sparring match with undefeated kickboxing world champion, Bill Superfoot Wallace, that lasted an hour and a half. According to Wallace, they practically stalemated and "beat the crap out of each other". Chuck was trained in kickboxing/boxing by Benny The Jet Urquidez and was also trained in BJJ by the Gracies and Machados for 20 years. Even being able to submit Carlos Machado himself on occasion. Chuck had a 315 Ibs bench press at 180 lbs bodyweight and was said to have a grip back in the day that nobody could escape from because he was so strong. Even Jean Claude Van Damme said he'd never fight Chuck Norris, despite being a kickboxing world champion himself. Chuck held a 10th degree black belt in Chun Kuk Do, a 9th degree black belt in Tang Soo Do, an 8th degree black belt in Taekwondo, a 5th degree black belt in Karate, a 3rd degree black belt in Brazilian Jiu Jitsu and a black belt in Judo. Rest in peace, Chuck!
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Eisenkocher
Eisenkocher@Eisenkocher·
@shpetim @lucagrecoita This chart shows nicely how the aero covers on the stock 18" save more than what the initial post claims for lighter wheels. Range is most critical on the highway, and there the aero resistance advantage matters more. Besides that, Tesla's wheels are light for what they are.
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shpetim
shpetim@shpetim·
My 15" TE37 weigh 3.7kg. If Tesla actually cared about weight savings and efficiency they wouldnt be running 20in wheels. "Aero wheel" is just marketing wank. Its the wheel size that is responsible for 99.9% of the efficiency gain. Consider how much more efficient the model 3 would be with 17" mag wheels.
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Luca Greco
Luca Greco@lucagrecoita·
Magnesium thixomodled wheels weigh 35% less than aluminum - and the efficiency gain goes beyond weight alone 💡 The 20" cast aluminum wheels on the Tesla Model 3 and Model Y weigh 13 kg each. Magnesium wheels of the same size weigh approximately 8 to 8.5 kg. That's a 5 kg saving per wheel - 20 kg total across four wheels. But here's what makes the difference disproportionate. The biggest impact isn't total vehicle mass. It's rotational inertia. Lighter wheels require less energy from the motors to spin, which directly improves efficiency and range. A Tesla Owners Silicon Valley experiment demonstrated approximately 5% vehicle efficiency increase from this 20 kg wheel savings alone - disproportionate to the mass reduction because of the rotational inertia effect. The comparison: -> Aluminum wheel: 13 kg each, 52 kg total -> Magnesium wheel: ~8.5 kg each, ~34 kg total -> Weight savings: 18-20 kg across four wheels -> Efficiency gain: ~5% (amplified by rotational inertia) The cheapest way to improve an EV's range isn't a bigger battery. It might be lighter wheels. The market for magnesium thixomolded wheels is already being built in China. The West hasn't started.
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Mathelirium
Mathelirium@mathelirium·
Kiyosi Itô and the Birth of Stochastic Calculus Once you swallow the fact that Brownian motion is continuous everywhere and differentiable nowhere, Itô’s quadratic variation is the next quiet shock waiting for you. Ordinary smooth curves have zero quadratic variation. If you chop time into tiny pieces and add up (increment)² over the interval, that sum goes to zero as your partition gets finer. But for Brownian motion that same sum doesn’t vanish, it locks onto the length of the time interval. So, you have this path with no velocity anywhere, but its squared wiggles accumulate in a completely rigid, deterministic way. Over time T, the total quadratic variation is exactly T. So, you lose the classical derivative, but you gain a new calculus where the (dB)² term behaves like dt, and suddenly integrals against Brownian motion make sense and you can do Stochastic Calculus. Brownian motion refuses to be smooth, but its roughness is so structured that when you look at it through the lens of quadratic variation, the randomness averages out and you’re left with a clean clock ticking underneath the noise. #BrownianMotion #ProbabilityTheory #StochasticCalculus #RandomWalks #Ito #QuadraticVariation
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Jan Null
Jan Null@ggweather·
The tiniest sliver of the moon, only 1.5% illuminated, that I have ever captured. Half Moon Bay, 8:10 pm, 3/19/2026
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Sheila Macrine, Ph.D.
Sheila Macrine, Ph.D.@MacrinePhD·
No brain? No problem! A simple single-celled organism without a brain or neurons appears to be capable of an advanced form of learning. Scientists have discovered that Stentor coeruleus, a giant single-celled organism, is capable of advanced associative learning. It can connect different stimuli without a single neuron—just like Pavlov's dogs! repo.enc.edu/2026/03/13/a-s… #DiverseIntelligence #Microbiology #ScienceNews #biology #StentorCoeruleus #CellularCognition #STEM #ScienceTwitter #Research #SamuelGershman@ gershbrain.bsky.social
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