Vignesh Ganapathi-Subramanian (@Chappli) header
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Distorting reality.

Sunnyvale
Joined September 2009
Photo by Vignesh Ganapathi-Subramanian (@Chappli)Photo by Vignesh Ganapathi-Subramanian (@Chappli)Photo by Vignesh Ganapathi-Subramanian (@Chappli)Photo by Vignesh Ganapathi-Subramanian (@Chappli)Photo by Vignesh Ganapathi-Subramanian (@Chappli)Photo by Vignesh Ganapathi-Subramanian (@Chappli)Photo by Vignesh Ganapathi-Subramanian (@Chappli)Photo by Vignesh Ganapathi-Subramanian (@Chappli)Photo by Vignesh Ganapathi-Subramanian (@Chappli)
Proud friend post! @melvinjohnsonp ❤️
A conversation with Sergey Brin, @joshwoodward, @tulseedoshi, and @melvinjohnsonp about Gemini 4 Argon, how we got here, and the path ahead!
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One can’t help but think @karthiksubbaraj wrote #Dorothy keeping @ikamalhaasan and @rajinikanth of the 80s in mind. What superlative performances by the leads and top filmmaking chops from KS. @ilaiyaraaja deivam’s BGM cherry on the cake.
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@karthiksubbaraj is the one Tamil director whose films seem to maintain that freshness. Love how he always makes you expect the unexpected. A crass village first half and a classy emotional second half talking about something so difficult wasn’t on my list. 🙏🏼🙏🏼
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This was an unreal team. Every team had a higher impact player than @ChennaiIPL in IPL 2018 among those who played at least half their games. But among the 42 who had a positive impact in the tournament, CSK had 8!!! Legendary #teamwork.
"Months don't have a voice" March 2018 :
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Don't think leagues are the problem - bilateral international cricket is too one-sided for the most part these days. What I would like to see with leagues is to go down the soccer route and have year-long league contracts for players. (1/2)
What would be your reaction if all the leagues around the world were scrapped and cricket returned to being played mainly at international, domestic and local levels? With plenty of tests, ODIs and T20Is..like old times? #CricketTwitter
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You actually build a semblance of franchise loyalty beyond the IPL. Tests should continue to be played internationally, and ODIs can be the "special" World Cup format. (2/2)
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Hahaha this made my day. Few things give more satisfaction than seeing an uncouth bugger being humbled by someone who is way more qualified.
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The last ten months of my life have revolved around putting fires related to this out. But never been more excited than this around an @Apple launch after the Vision Pro.
John Ternus drops his first "One More Thing" with the foldable iPhone Duo (starts at $1,999 with 256GB): ▫️thinnest iPhone ever when unfolded ▫️similar size to a passport holdable with one hand ▫️7’6 inch fully unfolded and 5’4 inch outer display is 80% of iPhone Pro size ▫️consistent aspect ratio in landscape and potrait ▫️custom hinge designed with that satifsing magnet click
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🤯🤯
holy shit. tristan buckmaster is saying openai has a forced navier–stokes blowup via the córdoba / martínez-zoroa program. and that it may have used drafts from his and levent alpöge’s private codex sessions. that’s the córdoba / martínez-zoroa route. almost nobody else was on it. he also says the first prompt went out after information about his and levent alpöge’s work reached openai. that “very little human input” was not true. that a whole team had already been set on easier problems, including euler. that even the prompt they showed him was written by prompting codex. then he asked: did the model have their private codex sessions. no answer on training. if any of that holds, openai didn’t just scoop a math result. they may have done it off two researchers’ unpublished drafts, then tried to cut the coauthor because he works at anthropic. a millennium-problem-adjacent result just became employee drama before an ipo. i don’t even know which part is crazier. this is one of the slimiest things i’ve seen in this industry.
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Incredibly thrilled for all the amazing work Deepak is going to be doing in Cal. More thrilled that we get to keep him in the Bay! 😉
Thrilled to share that I’ll be starting as an Assistant Professor in Mechanical Engineering at UC Berkeley in January 2027! I’ll be launching the Deep Lab for Microbial Biomechanics. 🧵 1/7 @Cal_Engineer
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Vignesh Ganapathi-Subramanian retweeted
Joy Milne, a retired nurse from Scotland, first noticed a distinct, subtle "musky" smell on her husband, Les, about 10 to 12 years before he was officially diagnosed with Parkinson’s disease in 1994. At the time, she didn't connect the odor to any medical condition, assuming it was just sweat or a change in his body chemistry. It wasn't until years later, when attending a Parkinson's support group with Les, that Joy realized every person in the room shared that exact same distinct scent, prompting her to believe that Parkinson's disease carried a unique olfactory signature. Intrigued by her claim, researchers at the University of Edinburgh, led by Dr. Tilo Kunath, decided to test Joy's ability through a double-blind study. Joy was given 12 plain T-shirts, six worn by confirmed Parkinson's patients and six worn by healthy control subjects. Joy correctly identified all six Parkinson's patients, but she also insisted that one of the control group members had the disease. Although marked as an error initially, the story took an incredible turn eight months later when that specific control subject was officially diagnosed with Parkinson's, revealing Joy had a 100% accuracy rate and had detected the disease long before clinical symptoms appeared. Joy's extraordinary olfactory sensitivity, a condition known as hyperosmia, led scientists to investigate what compounds she was actually smelling. Researchers discovered that the distinct odor stems from volatile chemical changes in sebum, the oily substance secreted by the skin, which is altered by Parkinson's disease. Joy’s gift has since paved the way for scientists to develop early diagnostic tools, including skin swabs and mass spectrometry tests, aimed at identifying Parkinson’s years before motor symptoms begin. Joy Milne’s incredible olfactory ability extends far beyond Parkinson's disease and it comes at a significant personal cost. Joy is an extreme "super-smeller" due to hyperosmia. Researchers have traveled with her internationally to test her ability to detect other conditions; she has helped scientists conduct preliminary odor research on tuberculosis (TB) in Tanzania, as well as cancer and Alzheimer's disease in the U.S. While her nose is a gift to medical science, Joy has often described her heightened sense of smell as an everyday burden. Everyday environments can be overwhelmingly painful for her. She has to strategically plan her routine, often doing grocery shopping very early in the morning or late at night to avoid the heavy perfumes worn by shoppers, and actively avoiding the household chemical and detergent aisles in supermarkets entirely because the artificial fragrances are so agonizingly intense. #archaeohistories
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Conversations with cricket-loving friends always end up here - can you really compare a performance in the MLC to one in the IPL? Here's a data-driven attempt on how one can measure it. beyondthecrease.vignesh-gans…
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Vignesh Ganapathi-Subramanian retweeted
We quit our jobs. There were six of us — Shiv Nadar, Arjun Malhotra, Yogesh Vaidya, Subhash Arora, D.S. Puri and me. It was 1976. Startups were not really a thing in India. Venture capital did not exist. Banks were not exactly lining up to lend money to six young men with an idea and no collateral. And computers? Most people had barely heard of them. But we believed the microprocessor was going to change the world. So we took the plunge. Between the six of us, we managed to put together ₹1.87 lakh. We borrowed, pooled our savings and, in one case, even sold a car. Our first office was a small barsati in Golf Links, Delhi. We called ourselves Microcomp. We wanted to build an Indian computer. There was just one problem. We didn’t have a manufacturing licence. That eventually led us to UP Electronics Corporation. They had the licence. We had the technology. And that partnership gave birth to Hindustan Computers Limited — HCL. But perhaps the most audacious part of the story was what happened next. We started selling a computer that was still being designed. We had a brochure and a mock-up of the machine. That was it. Our sales teams went across India, knocking on doors and convincing businesses to buy into a technology they had never used before. The first orders came from IIT Kharagpur and IIT Madras. Then came the harder part — convincing businesses. In Coimbatore, we were up against DCM DP, a much bigger and more established name. I still remember sitting in the reception area of Premier Mills while the DCM team made its pitch. We went in second. And we won. That one order gave us five more. Then ten. That was HCL in those early years: not having the biggest balance sheet, the biggest brand or the easiest path — but finding a way. We were restless. We looked for gaps. We hired people who had what we called a “cowboy” spirit. We believed that technology had to be made useful and accessible, not intimidating. And we kept moving. From building India’s early indigenous computers to taking our business to Singapore when HCL was just four years old. From a small room in Delhi to a global technology company. When I look back at 50 years, I think about six people sitting together in 1976, wondering if this crazy idea could actually work. I think about a barsati. A brochure for a computer that did not yet exist. And the courage to knock on the next door. That, to me, is the real HCL story. 50 years later, the technology has changed beyond anything we could have imagined. But the spirit remains the same: Dream big. Take the risk. And above all, Just Aspire. Happy 50th, HCL. What a journey it has been. #AjaiChowdhry #JustAspire #HCL #50yearsofHCL #Nostalgic #Founders
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Vignesh Ganapathi-Subramanian retweeted
I simply can’t take seriously anyone who uses the phrase ‘to have someone on the back foot’ as a derogatory. Cos all I’m thinking is yerr but did you ever watch Tendulkar kiss one through the covers off his tiptoes.
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Vignesh Ganapathi-Subramanian retweeted
Went for my high school's 50th year annual day celebrations. Was nice to see Prof. Kamakoti from @iitmadras, the chief guest, honour our chemistry professor, Krishnan sir. 🙌
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Vignesh Ganapathi-Subramanian retweeted
1/ Same point in my post, with the mechanism. Math is a “pure thought activity” because the explorer and the referee are the same machine: generate, test, verify, all inside the symbolic world. “The rest of what we do” is harder for one reason. There, nature is the referee.
Fields Medalist Jacob Tsimerman: "math is maybe being hit faster by AI because it's a pure thought activity" AI systems have already solved many important conjectures on their own, and very soon, I think they'll become robustly better at the rest of what we do too
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How Mohammad Abbas finds himself out of the @TheRealPCB Test team over and over again is something I’ll never understand. He was your best bowler last game AND among the better batters.
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Vignesh Ganapathi-Subramanian retweeted
Namaste, Ma'am...Aapko 1 story sunata hoon.... In the summer of 1980, a distraught 7th grade boy stood in the courtyard of a modest house in Mylapore, watching his father toss his cricket bat down a deep well. A fast bouncer had shattered the boy's spectacles during a local match & his father, a renowned Sanskrit logician, was terrified for his son's sight. "Your cricket days are done," his father declared, handing him a violin. "If you want to master precision, master this." The boy did not throw a tantrum. He directed his focus toward the strings, training until he was performing alongside musical legends, even taking direct corrections from Bharat Ratna M.S. Subbulakshmi. 5 yrs later, he suffered another blow: he failed to clear the IIT-JEE examination. He did not give up. He enrolled in a regional engineering college, quietly mastering computer science logic gates. He eventually worked his way into IIT Madras as a postgrad researcher, earned a PhD, joined as a prof & eventually became the Director of the very institute that had once turned him away. By 2011, while the world was building consumer mobile apps, this prof was looking at a hidden national vulnerability: every radar, fighter jet, banking server & defense system in India was running on foreign-designed microprocessors. He had a single question in his mind: "We can test that a foreign chip does what we WANT it to do. But can we guarantee it does not do something we DO NOT want it to do when a war starts?" He proposed building a completely indigenous, industrial-grade microprocessor from scratch. Global tech giants insisted it could not be done w/o billions of dollars in infrastructure & massive foreign patents. He did not care. Working out of cramped labs on long shifts, he & his team adopted the open source RISC-V instruction set. They hand-coded logic gates, mapped silicon layouts & verified billions of instruction cycles. In July 2018, a tiny 16mm² piece of silicon codenamed Risecreek arrived back at the lab. The team wired it up, flipped the switch & watched a flickering monitor as the Linux operating system booted on 100% Indian-designed silicon for the 1st time in history. Today, his SHAKTI processor architecture powers everything from defense communications to space grade controllers built in collaboration with ISRO. That young boy whose father threw his cricket bat down a well... The student who missed the JEE list in 1985... The violinist who turned down the official IIT Director's mansion to stay in his family home & protect his late father's Sanskrit library... His name is Prof. Veezhinathan Kamakoti.
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I really admire how DK is always so gracious when he talks about MS. It would be totally understandable if he were salty, given MS directly replaced DK and his India ambitions, but he’s always been so good about this topic, almost speaks like a fan even!
🚨 Dinesh Karthik: "MS Dhoni replaced me in the same ODI squad within a couple of months."🚨 DK on how MS Replaced him: India had a real dearth of wicketkeepers back then. Rahul Dravid was keeping wickets at the tail end of his career, so the system was searching for a proper long-term keeper. A few names were in the mix, Deep Dasgupta, Parthiv Patel, and me. I got the first opportunity with India A and toured Zimbabwe. MS Dhoni was also on that tour. From there, I got picked for India. After I moved on, Dhoni got his chance. He went to Kenya for a tri-series with India, Pakistan, and Kenya, and absolutely smashed it. Within a couple of months, he replaced me in the same ODI squad. Coming from a small town, playing with fearless freshness, and the rest is history. He took off, and how. Simply brilliant.
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