Sirsystems

2K posts

Sirsystems

Sirsystems

@sirsystems2

Interests: Systems for Deep learning

Amherst MA Katılım Mart 2019
5K Takip Edilen87 Takipçiler
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Lim Yen Kheng
Lim Yen Kheng@LimYenKheng·
New course I'm teaching this semester
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Justin Skycak
Justin Skycak@justinskycak·
When you hit a wall, don't just push harder. Diagnose. Walls are often built out of missing prerequisites, overloaded working memory, or reps that are too fuzzy to teach you anything.
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amul.exe
amul.exe@amuldotexe·
Hypothesis: Mediocre mid-career folks (like me) are often more concerned about what young people should do instead of their own struggles because it is an ego-driven distraction from their own stagnation / paralysis the point is to realize that the world doesn't need to be saved
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amul.exe@amuldotexe

Hypothesis: Most mediocre mid-career people do not talk *enough* about their problems, they are often just giving gyaan to younger folks (yes including me 😂)

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Arpit Bhayani
Arpit Bhayani@arpit_bhayani·
Folks, I am making my Redis Internals course available on YouTube. Every Saturday and Sunday, one new video drops, going deep into how Redis actually works - not slides and theory, but real implementation in Golang. Two videos are already out, and today I am releasing the 3rd video of the series. In total, there are 26 videos, and every single one is super practical, where I will actually walk you through the theory and source code to implement all the features of Redis, like data structures, transactions, pipelines, etc. The third video is live now, and it talks about Redis's wire protocol. RESP is the wire protocol every Redis client uses to talk to the Redis server. Understanding it means you understand the boundary between your application and Redis at the byte level, literally. Give it a watch. 3 videos are out now: 1. Why Single-Threaded Redis Is Fast 2. TCP Echo Server - Step 0 to Build Your Own Redis 3. Implementing Redis Wire Protocol - RESP If you have ever wanted to understand what happens inside a database rather than just how to use one, give it a watch and follow along.
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Mgoes (bio/acc 🤖💉)
Mgoes (bio/acc 🤖💉)@m_goes_distance·
nobody believed in biotech for 20 years then everything happened at once 2012 - CRISPR discovered in a yogurt bacteria. filed away as a curiosity 2018 - sickle cell disease kills 100,000 people a year. no cure exists, never has 2020 - mRNA proves itself in 9 months. world goes back to ignoring biology 2023 - AI eats software. biotech still stuck in 20 year timelines 2024 - CRISPR cures sickle cell. first time a genetic disease is functionally eliminated 2025 - baby KJ born with a fatal genetic disorder. custom CRISPR therapy built in 6 months. delivered inside his body. it worked. Lenacapavir approved - two injections a year, 99.9% HIV protection. Lilly drops $6B to build a dedicated peptide manufacturing facility. grey market was just the signal 2026 - Life Biosciences gets FDA clearance for the first human trial to reverse cellular aging. Lilly's oral GLP-1 approved. 280+ peptide drugs now in clinical trials. gene therapy pipeline at its largest ever. $47B in biopharma M&A in a single quarter. the 20 year timelines getting nuked bio/acc.
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Jake Lundahl
Jake Lundahl@LundahlHorses·
Civilization was built by people like this, and there is a stunning lack of gratitude in our culture for their work. In this specific case, at least half of the apple varieties in Brown’s collection were considered “lost” until he personally tracked them down and saved them. He literally went on quests where he did things like, tracking a lost variety back to a stump of a long-ago-cut-down tree near an abandoned homestead in remote Appalachia, took cuttings from the green shoots coming out of the stump, brought them back and planted them. Absolute legend.
Undiscovered History@HistoryUnd

Tom Brown, a retired engineer, dedicated 25 years to preserving approximately 1,200 apple varieties from extinction.

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Sirsystems
Sirsystems@sirsystems2·
In the age of AI you can have expert feedback instantly
Abhishek Singh@0xlelouch_

This is very true. I have seen average developers grow very fast once they got the right mentor, and very smart developers stay stuck for years without one. A software engineer friend of mine was trying to learn distributed systems on his own. He would watch long videos, read blogs, open Kafka docs, close them, then jump to database replication, then CAP theorem, then back to coding APIs. He was putting in effort, real effort, but the loop was broken. Too much input, very little correction, and almost no signal on what actually mattered. Then he joined a team with a very good senior. That senior did not just dump resources on him. He would say things like: Do not learn all of Kafka today. First understand why your service needs a queue. Then understand at least once delivery. Then build a small consumer. Then break it. Then tell me what went wrong. That changed everything. In 2 weeks, my friend understood more than he did in 6 months alone, cause now every rep had feedback attached to it. He wrote code, got corrected early, learned what was important, and stopped wasting energy on random complexity. This is why a good mentor matters so much in software engineering. They compress the feedback loop. They help you avoid fake learning. They tell you when you are confused. They show you what good looks like. And sometimes one sentence from the right mentor can save you 6 months of going in circles. Talent matters, yes. But for most devs, progress really starts when someone experienced helps turn vague struggle into tight feedback and real reps. It can be a good manager or a good team lead or even the VP if he is hands on.

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Ahmed
Ahmed@ahmedallibhoy·
Control theory is an interesting example of an engineering discipline where many practitioners are familiar with exactly these concepts. See e.g. the table of contents of this textbook written by my grand advisor
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Nick@anisomorphism

Engineers that don't know their ass from a vector space aren't going to invent the Levi-Civita connection or discover Riemann curvature. They aren't David Hilbert or Einstein, the philosophy you need for this is from a culture that wouldn't exist.

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Josef Chen
Josef Chen@josefchen·
Be Wang Chuanfu: > Get orphaned at 15 in rural China > Borrow $30K from your cousin to start BYD > Start making phone batteries > Buy a car company with no driver's license > Have Elon Musk laugh at you on live TV > Drink battery fluid in front of investors to prove it's safe > Warren Buffett bets $230M on you (30x'd) > Make iPads, iPhones and every Nothing phone > Outsell Tesla by 3x in 2025 > Supply batteries to Tesla > Dominate AI data centre cooling systems > Build the world's largest silicon carbide chip plant > Own lithium mines in Brazil > Build 8 of your own cargo ships > Make the world's fastest production car (308 mph) > Ship 5-min EV charging > File 50 patents per day > More employees than population of SF The founder still spends 70% of his time on engineering. Thanks for the red carpet at BYD headquarters! More soon.
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Kuntai Du
Kuntai Du@this_will_echo·
Two years ago, we just have 2 NVIDIA A40. Two years later, our project is mentioned in Jensen Huang's GTC talk. Hope is the first-order weapon for human to fight for the future.
Hanchen Li@lihanc02

Some former colleagues from @lmcache shared this photo from the GTC Keynote. I am honestly surprised how fast the team has been growing. (We were a research lab on 2 A40 GPUs in 2023!) btw I think they are hiring LLM hackers (or product hackers I am not sure 🤪, you should just check with @JunchenJiang @ChengYihuaA) #GTC #LLM #Inference #Nvidia #LMCache #KVCache

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pH
pH@pHequals7·
nature is healing
Ben Pouladian@benitoz

Today, SanDisk replaced Atlassian in the Nasdaq-100. A NAND manufacturer took the seat of a Jira vendor. That is the regime change in one headline. Read it twice. For 15 years, the Nasdaq-100 was a monument to asset-light software. High gross margins, negative working capital, zero cleanroom capex, Rule of 40 as scripture. SanDisk is the anti-Atlassian. Fabs, fluorine chemistry, EUV-adjacent lithography, 232-layer stacks, wafer yields measured in basis points. Actual physics. And here is the part nobody on fintwit is pricing in. The US graduated 24,547 electrical engineering bachelor’s in 1986-87. In 2020-21, we graduated 16,914. Four decades later. Still below the Reagan-era peak. Not flat. Down. Computer science over the same window went from roughly 39k to 109k. Call it 2.8x. The two lines on the chart do not just diverge, they mock each other. I say this as an electrical engineer. UCSD, Fainman’s ultrafast nanoscale optics lab, silicon photonics, micro-ring resonators. I know exactly what it takes to train someone who can actually move a process node, close timing on a mixed-signal die, or debug a yield problem at 3am. It is not a weekend cohort. It is a decade minimum, and most of that decade happens inside a fab or a tape-out cycle, not a classroom. An entire generation of smart kids was correctly told to chase software. That is where the returns were. TAM expansion, zero marginal cost, stock comp that prints. Nobody was writing Substacks about NAND process engineers in 2015. Nobody was telling their kid to go learn III-V epitaxy instead of React. Now the regime has flipped and the pipeline is a ghost town. You cannot bootcamp a device physicist. You cannot GPT your way into an analog layout. You cannot vibe-code a 232-layer charge trap stack. The training loop is a PhD plus a decade of tribal knowledge locked inside TSMC, Micron, Hynix, Samsung, Applied Materials, and maybe a dozen labs that actually still teach this stuff. When SanDisk wants to double enterprise SSD output, the binding constraint is not capital. The market will fund it at any multiple you can type into a DCF right now. The constraint is humans who know how to make the stack yield. And those humans are already employed, already vested, and already being counter-offered. This is the Memory Wars thesis with a labor-market overlay. The software guys spent 15 years telling us hardware was a commodity. Now the commodity has pricing power and the “real engineers” are the ones walking into comp negotiations with leverage for the first time in a generation. Pricing power accrues to whoever already has the talent locked up. That is the incumbents, and anyone with a serious university pipeline. Everyone else is about to learn that CHIPS Act money does not manufacture device physicists. It just bids up the ones who already exist. SanDisk entering the NDX is not the story. SanDisk entering the NDX while the US graduates fewer EEs than it did under Reagan, that is the story. Source: NCES Digest of Education Statistics, Tables 325.35 and 325.47. Bachelor’s degrees only.

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Violeta𓅓
Violeta𓅓@MamanLunettes·
I know a guy who just cruised in his teens - didn’t study in high school, barely took notes in class, his mom would do his homework and handwrite for him what he needed to study in order to pass. He was in the bottom half of his class, not particularly popular either, and very poor He’s now an anesthesiologist in London and also the one who cooks for his family. What probably did it: - at 25 the prefrontal cortex fully formed - he wanted to make it out of poverty - he is the same as before in that he has enormous amounts of positive emotion - although extremely poor (think one room for family of 3, toilet outside) extremely loving and harmonious family life, idyllic hillside life cultivated by his whimsical highly intelligent mom
Ava@noampomsky

has anyone ever seen someone go from “low agency,” like Really low agency, to being able to substantially advance their own life/make better decisions? and I don’t mean “they couldn’t do anything because of a severe depressive episode”

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Rushat Dixit
Rushat Dixit@rushat_dixit·
Me and my friend @Abhineet_Avhad just made a tube furnace from scratch at HackerFab IITB! All we needed was 50 meters of Kanthal A1, 18 kilos of refractory cement, 12 kilos of ceramic wool, 20 kilos of steel, a quartz tube, and some silicon wafers! #semiconductor #silicon
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yajnadevam
yajnadevam@yajnadevam·
A saltwater mouthwash controls this before you get issues
Farving🙆⭐️@FarvingCo

You floss. You bleed. That bacterium doesn’t stay in your mouth. It crosses into your bloodstream. Then it crosses into your brain. It was found in 96% of Alzheimer’s tissue. P. gingivalis. You’ve watched someone lose their memory. Slowly. Everyone said it was age. You told yourself it wouldn’t be you. It lives in your gum pockets. Feeds on blood. Produces enzymes called gingipains that destroy tissue. Not just in your mouth. When your gums bleed, that’s a broken barrier. P. gingivalis is in your blood. I spent six months reading gut research before I found this study. Higher gingipain load correlated with worse Alzheimer’s pathology. Post-mortem. Published in Science Advances. PMID: 30675515. Human brains. Now you know something your dentist doesn’t. If someone you love is losing their memory — screenshot this and send it to them. Your dentist has seen your bleeding gums hundreds of times. Never once mentioned your brain. P. gingivalis lives BELOW the gumline. In pockets standard brushing doesn’t reach. Bleeding when you floss isn’t normal. The barrier is already broken. One organism. Two barriers. Both broken. P. gingivalis can’t survive without iron from blood. Stop the bleeding and you STARVE it. Bleeding gums aren’t a cosmetic problem. They’re a supply line. Keep flossing and ignoring the blood. Every time, P. gingivalis enters your bloodstream. That’s been happening for years.

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Farving🙆⭐️
Farving🙆⭐️@FarvingCo·
You floss. You bleed. That bacterium doesn’t stay in your mouth. It crosses into your bloodstream. Then it crosses into your brain. It was found in 96% of Alzheimer’s tissue. P. gingivalis. You’ve watched someone lose their memory. Slowly. Everyone said it was age. You told yourself it wouldn’t be you. It lives in your gum pockets. Feeds on blood. Produces enzymes called gingipains that destroy tissue. Not just in your mouth. When your gums bleed, that’s a broken barrier. P. gingivalis is in your blood. I spent six months reading gut research before I found this study. Higher gingipain load correlated with worse Alzheimer’s pathology. Post-mortem. Published in Science Advances. PMID: 30675515. Human brains. Now you know something your dentist doesn’t. If someone you love is losing their memory — screenshot this and send it to them. Your dentist has seen your bleeding gums hundreds of times. Never once mentioned your brain. P. gingivalis lives BELOW the gumline. In pockets standard brushing doesn’t reach. Bleeding when you floss isn’t normal. The barrier is already broken. One organism. Two barriers. Both broken. P. gingivalis can’t survive without iron from blood. Stop the bleeding and you STARVE it. Bleeding gums aren’t a cosmetic problem. They’re a supply line. Keep flossing and ignoring the blood. Every time, P. gingivalis enters your bloodstream. That’s been happening for years.
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Nick
Nick@anisomorphism·
Engineers that don't know their ass from a vector space aren't going to invent the Levi-Civita connection or discover Riemann curvature. They aren't David Hilbert or Einstein, the philosophy you need for this is from a culture that wouldn't exist.
autism hexafluoride@servomechanica

@Anton81191831 Imagine being the guy whose job was to debug "the systemic clock drift issue" and slowly realizing you were discovering novel physics

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autism hexafluoride
autism hexafluoride@servomechanica·
@Anton81191831 Imagine being the guy whose job was to debug "the systemic clock drift issue" and slowly realizing you were discovering novel physics
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