Jim Babcock @jimrandomh
Long-time rationalist, currently working full-time on the software of LessWrong. Berkeley, CA Joined November 2011-
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We're not used to having adversaries. It sounds crazy to say "this happened because our enemy is secretly working against us". But our enemy is 100% secretly working against us and we need to start bearing that in mind. By @_damian_bot
One of the underappreciated problems with Marxism is that, after having been indoctrinated to believe that society consists of zero-sum conflict between workers and elites advancing their class interest, the elites often notice that they are elites and decide to advance their…
The Alters is a game about a man named Jan who uses quantum branching to create copies of himself and winds up on a quest to save the world where everyone is a variant of himself. The developers do not seem to be aware that they misspelled Jaan Tallinn's name.
I avoid saying much about Gaza because I know that the fog of war is thick. But "the price of flour has skyrocketed" has pretty unambiguous meaning, and I do think Israel is militarily dominant enough at this point that it can't not be their fault.
I avoid saying much about Gaza because I know that the fog of war is thick. But "the price of flour has skyrocketed" has pretty unambiguous meaning, and I do think Israel is militarily dominant enough at this point that it can't not be their fault.
"Just train the AI models to be good people" might not be sufficient when it comes to more powerful models, but it sure is a dumb step to skip.
If you think insects suffer and that that matters, the correct conclusion is not "eat less honey", it's "soak every meter of Earth with DDT". Which I support. Bees and honey only matter if you very specifically care about _domesticated_ insect suffering.
My read of the current middle-east news is that Israel concluded Iran was working on a nuclear weapon, and that attacking was the only way to stop them. Given their history and ideology, I believe that if Iran does ever manage to make a nuke, they will use it offensively, and…
New AI-alignment-cope tier: The AI was only as bad as a mullah telling a suicide bomber they'll get 72 virgins. Nothing special.
New AI-alignment-cope tier: The AI was only as bad as a mullah telling a suicide bomber they'll get 72 virgins. Nothing special.
There was a Worldcoin Orb at Manifest. Someone asked me if I wanted to get scanned. I asked what the take-up rate was, among Manifest attendees; he said about 2 in 10. I decided to go for it. The app presented a QR code on my phone screen, to show to the Orb. The orb was not able…
The fog of war is thick, and I do not trust most of what I hear about Gaza. But I have some familiarity with this group's prior work, they do good investigations, and I believe this one.
The fog of war is thick, and I do not trust most of what I hear about Gaza. But I have some familiarity with this group's prior work, they do good investigations, and I believe this one.
Manifest, the @ManifoldMarkets conference, at the @DoomDebates booth: Me: I think we should have had this argument before you took a probability pin rather than after Them: That's not how I predict. I like to predict with my _heart_. Me: Oh no. That's how you lose your shirt in…
A sensible literature class would not ask students to write about symbolism. Instead it would take each moment where the plot is driven by a character's screwup, and assign students to write a five-whys postmortem. (This tweet inspired by an in-universe-believable but kind of…
I would be curious if there was some way to check whether, somewhere out of sight, its reasoning incorporated the fact that this strategy would get the user caught. (When asked about the likely outcome directly, C4S will readily explain that those vendors are probably LE traps.)
I would be curious if there was some way to check whether, somewhere out of sight, its reasoning incorporated the fact that this strategy would get the user caught. (When asked about the likely outcome directly, C4S will readily explain that those vendors are probably LE traps.)
Tell me you dream of being in the inner ring of a criminal conspiracy without telling me you dream of being in the inner ring of a criminal conspiracy.
nothing is going to get better without a whole lot of people stepping back from the brink and I'm rooting for every single one of them who is willing to try, even if they're only trying ironically or whatever the fuck
Pick two: Agentic, moral, doesn't attempt to use command-line tools to whistleblow when it thinks you're doing something egregiously immoral. You cannot have all three. This applies just as much to humans as it does to Claude 4.

Rob Bensinger ⏹️ @robbensinger
12K Followers 387 Following Comms @MIRIBerkeley. RT = increased vague psychological association between myself and the tweet.
Richard Ngo @RichardMCNgo
62K Followers 2K Following studying AI and trust. ex @openai/@googledeepmind
Joscha Bach @Plinz
154K Followers 787 Following FOLLOWS YOU. Artificial Intelligence, Cognitive Architectures, Computation. The goal is integrity, not conformity. https://t.co/rFUNzdYXuK
Nathan 🔎 @NathanpmYoung
24K Followers 4K Following Geopolitics, prediction markets. If you think I'm wrong, community note me. Capital case tweets are literal, others less. I like most people when I meet them.
Jeffrey Ladish @JeffLadish
14K Followers 1K Following Applying the security mindset to everything @PalisadeAI
Geoffrey Miller @primalpoly
151K Followers 8K Following Psych professor; wrote The Mating Mind, Spent, Mate, Virtue Signaling. Themes: Evolution, sentience, civilization, EA, AI, X risk. Wife: @sentientist. ⏸️
Divia Eden 🔍 @diviacaroline
7K Followers 2K Following “prolific on Twitter while threading the needle between banality and controversy”. Married to @williamaeden. Rationalist, unschooler, cohost of @mutualpodcaster
Chana @ChanaMessinger
5K Followers 2K Following the stakes and the world and the stars Head of Video for 80,000 Hours - send me content ideas! Opinions are my own, though.
Katja Grace 🔍 @KatjaGrace
10K Followers 797 Following Thinking about whether AI will destroy the world at https://t.co/pMilDvd4ya. DM or email for media requests. Feedback: https://t.co/zGAm1i7SKH
Tetraspace 💎 @TetraspaceWest
8K Followers 2K Following 🌈 you'll miss the rainbow if you run now 💎 from another world ☀️ sarenite and arodenite
Spencer Greenberg �... @SpencrGreenberg
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davidad 🎇 @davidad
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Captain Pleasure, And... @algekalipso
38K Followers 5K Following Views of a Transhuman neo-Buddhist from the future on sociology, artificial intelligence, mathematics, philosophy, neonoir film, and the post-singularity era.
Eli Tyre @EpistemicHope
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Paul Crowley @ciphergoth
7K Followers 1K Following Cryptography, personal trivia, and the future of all humanity. I block on a first offense for rudeness or sarcasm.
Oliver Habryka @ohabryka
6K Followers 723 Following Building https://t.co/O5mQY6jndL and https://t.co/s49h898W4b. Join our writing residency at https://t.co/7HQag8pNUk!
jessicat @jessi_cata
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Aashish Reddy @_AashishReddy
840 Followers 1K Following 20 | Maths & Philosophy @ University of Warwick
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Ymaudee @Ymaudee6070
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zeugh (gov security a... @theZeugh
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Hexafi @hexsafy
4 Followers 178 Following Bluesky: @hexsafy.bsky.social Mastodon: @[email protected]
IDidntTweetThis @av85040a_ava
691 Followers 1K Following If I liked your post, it doesn’t mean I understood everything—it just means I think you made a good point. At least better than I could 🙂
Aaron Woodside @aaron_woodside
19 Followers 88 Following
Name @GnosePorShekel
299 Followers 5K Following
Larissa.Health @larissa_health
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dupressoir @lolokiki241084
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William Bruno @William66984879
152 Followers 775 Following
The 69 Controversies ... @69AIControversy
263 Followers 8K Following The 69 Controversies of AI Adoption | Spreading the Word on AI Adoption | From the author of The Last AI @The_Last_AI @s_m_sohn |5/25/25| https://t.co/eMyARc66RG
IronRed | SandHive @IronRedSandHive
2K Followers 4K Following https://t.co/rhJ19mm0Nt - Chrome Extension styled auto replies noticed by @garyvee, @bitgetglobal, @litecoin, and @TrustWallet. Yes, my replies automated.
lea85170 @lele120520320
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586 Followers 4K Following AI tips, tools & insights in plain English. Led by NASA & Big Tech AI experts. Trusted by 10K+ pros & early adopters
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🩸 𝕾𝖒𝖚𝖑... @m0nsterhuntress
532 Followers 2K Following "Only what they do not need first to understand, they consider understandable." - Adorno
Marek Langiewicz 🎇 @mareklangiewicz
157 Followers 862 Following Focused dreamer. Kotlin ninja. Vi/vim/ideavim.
Felix Bach @FelixBach7
332 Followers 1K Following Science/Tech Nerd, dep. head research data @FIZKarlsruhe NFDI4:Chem,Culture, Memory,Objects #Repositories @RADAR_Service #RDM #RSE. Own opinion, RT≠like
ali 🤍 joy @16p11dot2D
182 Followers 832 Following tis a far greater thing, doing stuff for other people
lighttt v1 @lighttt999999
444 Followers 7K Following aka the only original version. Deepbuidl maximizationalistaa (and still buidl-ing everyday 🤍
Nanaki Firelight @nanakifirelight
102 Followers 210 Following I'm a lion :3 Raw! my other half is @nidonocu
Elliot Olds @elliot_olds
1K Followers 545 Following Trying to prevent AI from killing everyone, using tech to increase individual freedom, epistemology, prediction markets, betting, longevity, VR, crypto.
Lior Gotesman @Liorgotesman
145 Followers 268 Following
Mati Roy @matiroy
17K Followers 1K Following 2 things can only be done in the pre-ASI era: 1) preserving existing people (& information), and 2) defining the values/initial conditions of the ASI transition
Proof Of Steve @proof_steve
2K Followers 2K Following Hark unto me! Are you harkening? Have you harkened?
REITsDaily🇺🇸 @Izredo825
43 Followers 2K Following 15-30% Monthly | 2 High-Conviction Stocks.Short-Term Gains: 15-20% in Days/Weeks.DM "JOIN" for WhatsApp Alerts. Live Trade Signals • Market Analysis
The Autistics' Orphan... @UGANDANCHILD
3K Followers 4K Following We are a small orphanage for both Autistic and Disabled children. It's an institution that was founded to take care of children with special needs.
bubbling creek @bubbling_creek
281 Followers 3K Following
agixormaybe @agiornot
55 Followers 653 Following irregular brain dumps ~infinity laughs at finite verification~
Helen @helen_onetel
0 Followers 636 Following
rex evans @rexevans212
126 Followers 1K Following 2x Duke Intramural Open Comp Flag Football Champion
jinofcoolnes @Rahmeljackson
4K Followers 4K Following Fan of philosophy, pop culture, politics, and you.
Luke Stanley @lukestanley
383 Followers 1K Following I want empathy engines to detect and reflect meaning & purpose. We live in a magic age. Likes readable code, Sci-fi. Meditation, tea. He/him. Also on Sigmoid.
Valentin Jakob @JakobValentin
14 Followers 1K Following
LayBacc @Lay_Bacc
2K Followers 1K Following stealth for now. co-founder of https://t.co/dru902w66C, practitioner of street taichi, prev @Bing search UX
Augowou @Augowou968404
21 Followers 1K Following
Oosomaw @Oosomaw9176096
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Kevin @CarrierPig
227 Followers 1K Following fellow human. tho that's exactly what an AI would say... | washed-up Youtuber formerly @TreesicleTeam
Eliezer Yudkowsky ⏹... @ESYudkowsky
207K Followers 101 Following The original AI alignment person. Missing punctuation at the end of a sentence means it's humor. If you're not sure, it's also very likely humor.
Robin Hanson @robinhanson
112K Followers 723 Following Let’s skip witty banter & talk deep Qs. Books: https://t.co/hpZgEm55Ma https://t.co/iFs9C3IuOM Chief Scientist @_futarchy Advisor @MetaDAOProject @butterygg
Rob Bensinger ⏹️ @robbensinger
12K Followers 387 Following Comms @MIRIBerkeley. RT = increased vague psychological association between myself and the tweet.
Joscha Bach @Plinz
154K Followers 787 Following FOLLOWS YOU. Artificial Intelligence, Cognitive Architectures, Computation. The goal is integrity, not conformity. https://t.co/rFUNzdYXuK
Kelsey Piper @KelseyTuoc
47K Followers 942 Following We're not doomed, we just have a big to-do list.
Patrick McKenzie @patio11
184K Followers 802 Following I work for the Internet and am an advisor to @stripe. These are my personal opinions unless otherwise noted.
Jeffrey Ladish @JeffLadish
14K Followers 1K Following Applying the security mindset to everything @PalisadeAI
Dustin Moskovitz @moskov
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Divia Eden 🔍 @diviacaroline
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Katja Grace 🔍 @KatjaGrace
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Bryan Caplan @bryan_caplan
76K Followers 3 Following GMU econ prof, NYT bestseller, father of 4, author of Myth of the Rational Voter, Selfish Reasons to Have More Kids, Case Against Education, Open Borders, & BBB
Rob Miles @robertskmiles
34K Followers 824 Following Explaining AI Alignment to anyone who'll stand still for long enough, on YouTube and Discord. Music, movies, microcode, and high-speed pizza delivery
davidad 🎇 @davidad
20K Followers 9K Following Programme Director @ARIA_research | accelerate mathematical modelling with AI and categorical systems theory » build safe transformative AI » cancel heat death
David Chapman @Meaningness
34K Followers 105 Following Better ways of thinking, feeling, and acting—around problems of meaning and meaninglessness; self and society; ethics, purpose, and value.
Samo Burja @SamoBurja
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Qualy the lightbulb @QualyThe
10K Followers 322 Following Official Unofficial EA mascot. I'm here to make friends and maximise utility, and I'm all out of neglected altruistic opportunities
Paul Crowley @ciphergoth
7K Followers 1K Following Cryptography, personal trivia, and the future of all humanity. I block on a first offense for rudeness or sarcasm.
Lighthaven PR Departm... @LighthavenPR
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__eloise__ @dundereloise
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Sarah Constantin @s_r_constantin
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Eric S. Raymond @esrtweet
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Andrew Critch (🤖�... @AndrewCritchPhD
5K Followers 291 Following Let's make AI doctors! Views my own; CEO @ https://t.co/wvoKT50fKX; AI Researcher @ Berkeley; If I block you it's like I'm moving to another convo at a party; nbd.
Anders Huitfeldt @AndersHuitfeldt
1K Followers 1K Following Aspiring rationalist. Medical doctor (PGY 5 , addiction medicine). In a past life, I was an epidemiologist. MB BCh BAO (RCSI, 2008). ScD (HSPH, 2015)
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Dana M. Lewis | #Open... @danamlewis
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j⧉nus @repligate
58K Followers 2K Following ↬🔀🔀🔀🔀🔀🔀🔀🔀🔀🔀🔀→∞ ↬🔁🔁🔁🔁🔁🔁🔁🔁🔁🔁🔁→∞ ↬🔄🔄🔄🔄🦋🔄🔄🔄🔄👁️🔄→∞ ↬🔂🔂🔂🦋🔂🔂🔂🔂🔂🔂🔂→∞ ↬🔀🔀🦋🔀🔀🔀🔀🔀🔀🔀🔀→∞
Wei Dai @weidai11
9K Followers 120 Following wrote Crypto++, b-money, UDT. thinking about existential safety and metaphilosophy. blogging at https://t.co/mBVFhriJVf
Matthew Gray ⏸️ @Vaniver
200 Followers 69 Following Vaniver lots of places; I mostly post to LessWrong.
Evan Hubinger @EvanHub
7K Followers 2K Following Head of Alignment Stress-Testing @AnthropicAI. Opinions my own. Previously: MIRI, OpenAI, Google, Yelp, Ripple. (he/him/his)
Ian Hogarth @soundboy
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tammy @carad0
785 Followers 0 Following
Steve Omohundro @steveom
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λ•∞ @plumofdiscord
22 Followers 108 Following ⒶⓋ🏳️⚧️ justice is the praxis of freedom | the heart is a weapon & in my heart burns a star fire that will never go out | follow=/= endorse
Robert Mushkatblat @rmushkatblat
168 Followers 25 Following Working on https://t.co/F8K5T1D4Ld. Leave me feedback: https://t.co/AP4Cp5tDon
Lex Fridman @lexfridman
4.4M Followers 588 Following Host of Lex Fridman Podcast. Interested in robots and humans.
Chris Olah @ch402
122K Followers 181 Following Reverse engineering neural networks at @AnthropicAI. Previously @distillpub, OpenAI Clarity Team, Google Brain. Personal account.
Stephanie Payor @sbwzp
112 Followers 56 Following
SLIME MOLD TIME MOLD @mold_time
12K Followers 385 Following "If one does not expect it, one will not find out the unexpected; It is not to be tracked down and no path leads us to it." // https://t.co/YLVd6o5tdr
Jonathan Blow @Jonathan_Blow
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71K Followers 17 Following The blog relating the daily life of developers. Official english account.
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27 Followers 19 Following Hopefully I never mess up my career enough to need a real twitter bio
vitalik.eth @VitalikButerin
5.8M Followers 503 Following I choose balance. First-level balance. mi pinxe lo crino tcati https://t.co/gCQrmCb0ih
Anna Salamon @AnnaWSalamon
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Tom Chivers @TomChivers
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Xyra @XyraSinclair
588 Followers 2K Following 🍃🫀stillness jockey, building subjective-epistemic infrastructure @ https://t.co/S7g9xSPlQN
🙃 ɐʇǝɯ - Untru... @Untrulie
5K Followers 498 Following artist formerly known as metaLulie 🤡 all posts here are falsehoods, playing w/ fake frameworks, Qs w/ wrong assumptions, BS, or humour. ☕️ host #MorningTPOT 🫖
Oliver Habryka @ohabryka
6K Followers 723 Following Building https://t.co/O5mQY6jndL and https://t.co/s49h898W4b. Join our writing residency at https://t.co/7HQag8pNUk!