John Backus @backus
Dissonant and obsessive try-hard. Founded @getcognito (acquired by @Plaid) San Francisco Joined August 2012-
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Claude in Undertale Graphics, story, music, and sound effects all one-shotted by Opus 5.5
@typewriters There just might be hope for magnets in California...
Being James Bond and/or a ninja is considered illegal in California. Niche weapons you aren't allowed to possess: - Knives hidden inside belt buckles, lipstick cases, pens, canes, or tire-pressure gauges - Ballistic knives, where the blade can be ejected from the handle - Brass OR wooden OR hard-plastic knuckles - Leaded canes (heavier, for striking) - Blowguns (so you can own a real gun, but not a blowgun or blow darts??) - Replica grenades unless they're filled with resin - Throwing stars - Basically anything with a heavy part for hitting, like a "slungshot" (a rope with a metal-weighted ball), or compact sandbags you could use to hit people You CAN own nunchucks though! They were re-legalized in 2022.
@rsnous @_chenglou now this one is a deep cut
Logging into Venmo in 2026 like ME: Hello I want to— VENMO: Open a debit card? Credit? Deposit into Kalshi? Buy Crypto? PayPal stablecoin? Please? Buy tickets with TicketMaster? Get an NYT subscription? ME: Pay my friend! VENMO: Ugh, fine. Good luck, we barely maintain that.
AI coding tools today remind me of Betty Crocker introducing a "just add water" cake mix in the 1940s which didn't sell well until they tweaked it to "just add an egg," making consumers feel like they're still baking. Still in egg phase now, but it sure feels like "just add water" is right around the corner. Psychological toll this will have on builders will be profound.
@kissapiai Yeah I'm annoyed by the community note being because a bunch of bozos reposted it saying "It fully coded an original Pokémon game by itself" which is just a straight up lie
POK(AI)MON: Experimenting with GPT 5.4 autonomously editing and rewrite the Pokémon Red ROM, replacing Pokémon with AIs. Details below
Huh, so a bunch of random people repost my video with an inaccurate caption so I get a community note on my post basically reiterating what I said immediately below the post? Strange...
It would do a good job advancing through menus and starting the game. The furthest I would have it go was walking out of the starter house just because the keyboard input → verify screenshot → repeat loop is just boring after a while, but I have no doubt it could go indefinitely. All I had to do was watch it try and fail a handful of times initially and then once it got the QA right I told it to write a guide in AGENTS.md to help it in the future.
@crunch1271 @0xKiryoko Consider the original pret projects or something if you're looking to donate. This only took me a few hours, I'm good :)
@0xKiryoko Opened up Codex inside of a fresh clone of github.com/pret/pokered and just described how I wanted the game modified. It built the ROM as it went, loaded it in a browser emulator using playwright to QA, generated images on its own, etc
I'm sure there's a bit of accounting weirdness here with DS/ML being under xAI but even still this is completely bonkers.
Twitter's Eng org used to be TWO THOUSAND engineers. Now it's ~25 engineers and a few designers and PMs. I knew the cuts were big but this is blowing my mind.
@danielrakh @bengold Engineers, 2 designers, 1.5 product managers and me
@marcryptonio I'm so sorry. It's a tragedy, especially right before the holidays. Hang in there
I thought I had 10 more years with my Dad. He treated his CLL so effectively the last decade, sometimes I forgot he had cancer. An infection took his brain so quickly that by the time my red eye landed we could only have simple yes or no conversations. Within 48 hours, it was a coin flip whether he would be able to recognize me. A week later, our last flicker of hope went out and we said goodbye. There was no warning. No heads up to get some quality time in. Why didn’t I call him every week? Why didn’t I ask him to show me pictures of him from when he was my age and explain that phase of his life? Why don’t I have more photos of him? With him? I’m angry at myself for all those moments I wasn’t present with him. I’m angry at the world for how suddenly he was taken. So early. Six months before my wedding. Never able to meet my kids. To be able to call him “grandpa.” I couldn’t wait to give him that, and now I can’t. The last few weeks I’ve been desperate for control. I couldn’t control the bureaucracy that denied him a bed at the specialist hospital he donated to, even when we paid for a private medical plane to transport him. It hurts even more that, in the end, it wouldn’t have made a difference. I can’t control what happened to my Dad at this point, but I can control how I move forward. I won’t make the same mistakes again, Mom. I won’t let the family go without a strong leader they can rely on. I won’t let my kids grow up without knowing who you were, Dad. Your energy. Your overwhelming optimism. Determination. Work ethic. How your hard-driving intensity turned into a distinct tenderness in your later years. I will continue to make you proud with what I accomplish, even if I can’t experience the joy in seeing the pride in your eyes anymore. I’ll pass on the values we shared. I’ll give my kids everything, just like you did. Talk to your parents.
@MichaelRihani Thanks Rihani 🙏. Will definitely take you up on that when I'm back.
Michael Nielsen @michael_nielsen
123K Followers 5K Following Searching for the numinous 🇦🇺 🇨🇦, currently live in 🇺🇸 Research @AsteraInstitute https://t.co/maezekzk4D
Nick @nickcammarata
115K Followers 914 Following mechanistic interpretability, meditation, jhana brother
Byrne Hobart @ByrneHobart
62K Followers 2K Following The John Henry of excessive use of the em-dash. Tweets are map, not territory. Co-author: Boom (Stripe Press): https://t.co/u8do6HYFRF https://t.co/2zMEobDlr1
José Luis Ricón Fer... @ArtirKel
25K Followers 1K Following Enjoyer of things, chilling, vibing, thriving. blog: https://t.co/8xDYgWAJHB
nicole ruiz @nwilliams030
27K Followers 5K Following ☧ ambitious homemaker, wife to @rsanti97 // formerly: VC @compoundvc investing in former science projects // favorable conditions never come
Alexey Guzey @alexeyguzey
39K Followers 1K Following https://t.co/YTeUJ2NkIG, https://t.co/qI4croy4bx, https://t.co/8HIEyR1Xvz
Anna Gát @TheAnnaGat
40K Followers 4K Following Philosophy and conversation (humans, machines) • Founder and CEO of @interintellect_ • Bio: https://t.co/h6zEGcDxdp • Words: https://t.co/oeH3uO0nNF • Podcast: @thehopeaxis
🌷🐰 sonya serend... @sonyasupposedly
19K Followers 3K Following inadvertent mom account • rationalist sympathizer • avatar by @suchaone
Flo Crivello @Altimor
52K Followers 1K Following Founder @getlindy. "Striving to remember the obvious over grasping the esoteric." Personal website: https://t.co/vmuHfsX9Aj
deepfates.delve.town @deepfates
66K Followers 7K Following cofounder @grove_research ∙ prototyping human-AI society at https://t.co/ReKO6d7w8d ∙ DM for invites
Devon ☀️ @devonzuegel
59K Followers 1K Following I've gone to look for myself. If I return before I get back, please ask me to wait. Building @Esmeralda_Inst. Prev @GitHub @NotionHQ @Affirm @StanfordReview
Andy Matuschak @andy_matuschak
63K Followers 2K Following More wonder, more insight, more expression, more joy! R&D on tools for thought, with a focus on memory, reading, and attention. Currently working on @pico.
mattparlmer 🪐 🌷 @mattparlmer
37K Followers 13K Following Recursively self-improving and self-replicating factories @genfabco — rationalist and friend of the future
Jason Crawford @jasoncrawford
46K Followers 4K Following I write and speak about the history & philosophy of progress. Founder, @rootsofprogress. Host of the Progress Conference. Author, The Techno-Humanist Manifesto.
mehdi zeraa @mehdicz
6 Followers 71 Following
Laksh Mody @LakshMody
574 Followers 3K Following Founder @ https://t.co/j7TwmNPuJb (sold), Founder @ FaceGenie (sold), PM @Rapid_API (sold to @nokia). PM @Grubhub. CS @ @UChicago. Fun: https://t.co/koExwbqEfi
Looksmaxx VC @looksmaxxvc
2K Followers 2K Following The world's first aesthetics-driven venture capital firm. NOT backed by Peter Thiel.
Nam Dao @namdao2000
897 Followers 4K Following Managing Partner @lyracapital | CEO at Lyra Invested: paraform, vorflux, lemma, hyperspell, finta, forward, haladir, polar, andera, datoric ... +72
Raymond @linraymond2006
97 Followers 4K Following
Autopilot Index @autopilotindex
2 Followers 312 Following Businesses that run themselves 🛩 The open index of AI-run companies, field experiments & the stacks they fly on. Every claim sourced. Vibes don't chart.
RR @RRweb3
34K Followers 18K Following AI • DeFi • RWA • NFT • Creator AMB @ZARGATES DM for collabs 📩
Surya Narayanan @EcstaticIndian
381 Followers 3K Following Stanford | Caltech | Perennial questions studied with the methods of our times.
max.eth @MaxArt_eth
11K Followers 2K Following @Web3Rehashed Art Director / street artist / . Doing stuff!!
KB @kbizzle_kb
1K Followers 7K Following AI/ML Talent at @AbridgeHQ — Joined Series B (~45 employees), now Series E with 550+ on the team (12X 🚀)... and we're still growing! Come build with us 🤖
Ratu Mataira @RatuD2
140 Followers 340 Following Founder – CEO of OpenStar, building the Dipole, a stable, simple, modular, fusion reactor that can be iterated and deployed fast enough to matter.
Andreas Kling @awesomekling
65K Followers 2K Following building @ladybirdbrowser. recovering addict. husband of @katalinkult. uncle. gymnasium brother.
@dingchilling @dingchilling
2K Followers 3K Following creative coding with LLMs ✧ learning ml, chess and shitposting made a fun little game: https://t.co/14YhJC3jC0
JinTian(偶像雷军+... @angelheavenzzz
894 Followers 7K Following Collaborate with elites to disruptively change this world. Opinions are my own. Cooking @SteadyPareto @SteadyWhaleQuant prev @TencentGlobal,@CUHKofficial
Rah Man Designer @UiRahMan92
703 Followers 1K Following Design AI products that convert. UI/UX for AI SaaS & mobile apps.
Joseph Glasson @8301JG
7 Followers 132 Following Olympic hopeful interested in AI Safety & Alignment; I like semi colons
Paige Willey @paigeslist
843 Followers 272 Following Consultant in Washington. @WhiteHouse 45/47. At risk of making things Great again.
Sophia @mshamraiz8
1 Followers 273 Following gym at 7am, reality tv at 9pm, no in-between 😌 golden retriever energy with a plot twist
Sam Beskind @sambeskind
3K Followers 1K Following prev @stanfordmbb. Currently @floodgatefund & growing https://t.co/ynTzOcCJfL
Godwill Kyolo @GKyolo35489
8 Followers 56 Following
Arif @ShoalDev
276 Followers 639 Following
fuckkkkk @fuckkkkkk21321
320 Followers 5K Following I am a Psychopath, and probably going to die from my Gambling Addiction
Hold（sol) @binancethinking
429 Followers 3K Following Believe in good meme managers. We are one of your favorite anonymous market makers.
rafazia jan @RafaziaJan
48 Followers 362 Following
mk @mk1751749912269
12 Followers 253 Following
ggdai @ggdai_sol
242 Followers 3K Following
Sholto Douglas @_sholtodouglas
64K Followers 2K Following Scaling RL @AnthropicAI, ex @DeepMind - working towards intelligence too cheap to meter
Faith @Faithfreewb3
236 Followers 2K Following 10years into the crypto market Telegram group:https://t.co/ckyIN9XBHC
MrBull @MrBullg7
94 Followers 238 Following
Carla Marsh @CarlaMarsh41062
74 Followers 182 Following
Marie Barkhau @BarkhauMar3390
61 Followers 185 Following
Michael @Michaelutmf
120 Followers 4K Following
Michael Nielsen @michael_nielsen
123K Followers 5K Following Searching for the numinous 🇦🇺 🇨🇦, currently live in 🇺🇸 Research @AsteraInstitute https://t.co/maezekzk4D
Nick @nickcammarata
115K Followers 914 Following mechanistic interpretability, meditation, jhana brother
Byrne Hobart @ByrneHobart
62K Followers 2K Following The John Henry of excessive use of the em-dash. Tweets are map, not territory. Co-author: Boom (Stripe Press): https://t.co/u8do6HYFRF https://t.co/2zMEobDlr1
José Luis Ricón Fer... @ArtirKel
25K Followers 1K Following Enjoyer of things, chilling, vibing, thriving. blog: https://t.co/8xDYgWAJHB
Samo Burja @SamoBurja
88K Followers 851 Following There's never been an immortal society. Figuring out why. Founder @bismarckanlys.
David Chapman @Meaningness
37K Followers 102 Following Better ways of thinking, feeling, and acting—around problems of meaning and meaninglessness; self and society; ethics, purpose, and value.
nicole ruiz @nwilliams030
27K Followers 5K Following ☧ ambitious homemaker, wife to @rsanti97 // formerly: VC @compoundvc investing in former science projects // favorable conditions never come
Alexey Guzey @alexeyguzey
39K Followers 1K Following https://t.co/YTeUJ2NkIG, https://t.co/qI4croy4bx, https://t.co/8HIEyR1Xvz
Anna Gát @TheAnnaGat
40K Followers 4K Following Philosophy and conversation (humans, machines) • Founder and CEO of @interintellect_ • Bio: https://t.co/h6zEGcDxdp • Words: https://t.co/oeH3uO0nNF • Podcast: @thehopeaxis
🌷🐰 sonya serend... @sonyasupposedly
19K Followers 3K Following inadvertent mom account • rationalist sympathizer • avatar by @suchaone
Flo Crivello @Altimor
52K Followers 1K Following Founder @getlindy. "Striving to remember the obvious over grasping the esoteric." Personal website: https://t.co/vmuHfsX9Aj
typedfemale @typedfemale
49K Followers 566 Following a really exciting new account "advanced pytorch user" - @cHHillee alt: @typedalt
deepfates.delve.town @deepfates
66K Followers 7K Following cofounder @grove_research ∙ prototyping human-AI society at https://t.co/ReKO6d7w8d ∙ DM for invites
Devon ☀️ @devonzuegel
59K Followers 1K Following I've gone to look for myself. If I return before I get back, please ask me to wait. Building @Esmeralda_Inst. Prev @GitHub @NotionHQ @Affirm @StanfordReview
Andy Matuschak @andy_matuschak
63K Followers 2K Following More wonder, more insight, more expression, more joy! R&D on tools for thought, with a focus on memory, reading, and attention. Currently working on @pico.
METR @METR_Evals
57K Followers 43 Following We work to scientifically measure whether and when AI systems might threaten catastrophic harm to society. Nonprofit.
Luke Farritor @LukeFarritor
22K Followers 5K Following
mattparlmer 🪐 🌷 @mattparlmer
37K Followers 13K Following Recursively self-improving and self-replicating factories @genfabco — rationalist and friend of the future
will o’brien @Willob
22K Followers 5K Following Founder @UlyssesInc. Founder of The Hamilton Society. Irish. Catholic. Frontier Spirit.
Lauren @luckypennyy_
2K Followers 576 Following CoS @stealthneuro 🧠 ⚡️🇺🇸 || Used to meditate, now I rally🏎️
Charlie Guo @charlierguo
10K Followers 913 Following Developer Experience @OpenAI. Author of Artificial Ignorance, opinions are my own.
Daniel Chang @dnnssl2
1K Followers 245 Following poignantmaxxing ex-@mercor_ai abstraction of oneself empathy for the game
anabology @anabology
88K Followers 1K Following co-founder https://t.co/6WejBPTCn7 (bioelectricity; at-home MRI) // https://t.co/j5dZ767ySN + https://t.co/TaekXhphbF // building Claudia: https://t.co/DlIhFS20Pv + Claudia Grok Bot: https://t.co/VcQYivvtOc
Unnecessary Invention... @mattyxb
76K Followers 394 Following Hi I'm Matty. I design products to solve problems that don’t exist. [email protected]
World's Fair Company @WorldsFairCo
2K Followers 3 Following We're carrying on the rich legacy of the World's Fairs with a simple mission to inspire people to build the future.
Cameron Wiese @camwiese
3K Followers 973 Following the world's fair guy. on a mission to inspire and enable people to build the future. @worldsfairco
Eliezer Yudkowsky @allTheYud
25K Followers 37 Following High-volume account of @ESYudkowsky, the original AI alignment guy. If it's missing punctuation, it's humor. If you can't tell, it's probably also humor.
1517 Fund @1517fund
23K Followers 476 Following We back dropouts, renegade students, and deep tech scientists at the earliest stages, before anybody else. Want to chat? Reach out:👇
Steve Wozniak @stevewoz
3.7M Followers 91 Following Engineers first! Human rights. Gadgets. Jokes and pranks. Segways. Music and concerts. Gameboy Tetris.
Emma Camp @emmma_camp_
126K Followers 939 Following Writing a book on gen z & risk-aversion w/ ballantine @randomhouse // writer @wsjopinion @wsjfreeex // "apex predator of hosting" ✉️ Tips: [email protected]
nora @exactlynora
1K Followers 250 Following just look in this window you’ll find me here @amsofficehours
James Reggio @jamesreggio
2K Followers 1K Following CTO @brexHQ 🏳️🌈 👬 @cheston 🐈 🦆 🇺🇸 🍣 ⛷️ ✈️ 🏍️ enthusiast 🗽 Political posts are my own
Kasia @katherinebaney
205 Followers 344 Following arts & crafts very sci fi (in the Ursula Le Guin sense) mother to moon comms lead @untillabs
John Tomcat Sanderson @tomcat_esq
181 Followers 948 Following
John Wolthuis @thuddwhirr
3K Followers 463 Following Climate. Housing. Abundance. Co-founder, @twilio. Board, @cayimby, @NiskanenCenter. Opinions are my own.
Coby @Cobylefko
64K Followers 503 Following Working on creating better, more beautiful places to live in.
jasmine sun @jasminewsun
25K Followers 1K Following anthropologist of disruption ✰ contributor @theatlantic ✰ newsletter https://t.co/pyrKX4WjGX
Mark Zuckerberg @finkd
2.5M Followers 759 Following
Sanjay Ghemawat @Sanjay_Ghemawat
42K Followers 12 Following
Gavin McInnes @Gavin_McInnes
279K Followers 874 Following Created VICE Media, Proud Boys, hipsters, and the Post-it Note.
James Bradbury @jekbradbury
18K Followers 10K Following Compute at @AnthropicAI! Previously JAX, TPUs, and LLMs at Google, MetaMind/@SFResearch, @Stanford Linguistics, @Caixin.
whimsy lohan (in NYC) @SexyLikeMeiosis
12K Followers 998 Following funding cool science @convergent_FROs, writing at Contents May Shift / "an interesting mix of spiritual and hustler" according to my landlord
SemiAnalysis @SemiAnalysis_
175K Followers 38 Following
Dylan Patel @dylan522p
166K Followers 1K Following SemiAnalysis AI Infrastructure Research and Consulting DMs are open for consulting, quotes, or to talk shop, Opinions my own
Elizabeth Kennedy @elizab_kennedy
854 Followers 3K Following Working on critical technology policy and government affairs @activatefellows. Board @massventures. Formerly @harvard @malifesciences. Views my own.
Foundation for Americ... @JoinFAI
19K Followers 79 Following A think tank focused on championing the technology, talent, and ideas essential to American prosperity, security, and flourishing.
Rob @robcoomber
776 Followers 1K Following Cofounder of @fluid_xr, Spatial Computing, Music & Baseball. Wu-tang is for the children
hope hopes hoping @hopes_revenge
247K Followers 1K Following FOLLOW ME FOLLOW ME FOLLOW ME FOLLOW ME FOLLOW ME FOLLOW ME FOLLOW ME FOLLOW ME FOLLOW ME FOLLOW ME FOLLOW ME FOLLOW ME
Alex Atallah @alexatallah
69K Followers 3K Following CEO, co-founder @OpenRouter, the largest LLM marketplace. Previously: co-founder & CTO @OpenSea.
notch @notch
3.3M Followers 245 Following Currently working on Levers and Chests, a dungeon crawler roguelike roguelite.
tcs whispers @tcswhispers
809 Followers 5 Following finding comments in tex source files in arXiv preprints posted to cs•CC and cs•DS. comments are anonymized, DM if you need a tweet taken down :)
Joanne Peng @JoanneZPeng
3K Followers 2K Following neuroai & biotech | president & research director https://t.co/eEL2wWsnt8 | @mit @princeton @thielfellowship | 🇨🇦Trends for United States
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