Gary Marcus @GaryMarcus
OG GenAI Skeptic; spoke at US Senate. Warned about hallucinations in 2001. Advocating world models & neurosymbolic AI ever since. Author, Marcus on AI & 6 books garymarcus.substack.com Joined December 2010-
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@DeryaTR_ ah; your support for their standing their ground didn’t quite come through on in the OP.
Discovery of a 14-protein biomarker that predicts lung cancer 5.6 years before it is diagnosed, even in non-smokers, and an anti-inflammatory medicine that prevents its progression. And, challenging dogma, the proteins are not coming from cancerous cells!
is there any evidence whatsoever that Fable was more vulnerable to jailbreaking and distillation than competing models, or was enforcement selective?
.@ReedAlbergotti scoop: Concerns about specific China-linked accessed to Mythos part of the White House Anthropic move semafor.com/article/06/13/…
live footage of the US government squandering our AI lead
could the u.s. policy be any stupider?
JUST IN: Andrej Karpathy, a top AI scientist at Anthropic, is reportedly barred from accessing the company’s most advanced AI model because he is not a U.S. citizen.
@burkov i don’t use the ai overview (except to laugh at them); the web links are mostly fine
@scaling01 and they have the money and i am not sure the current path is the right one and they may be better positioned to find alternatives
@JadeCole2112 see my substack today for only viable solution at this point
Whatever you may think of Dario or Anthropic, Friday’s decision, and the impetuousness and arbitrariness of it, was a terrible mistake that has left a stain that will last. Washington needs to fix this.
Make no mistake: post-Mythos, the United States has a licensing regime for AI. It’s just informal, with no consistent rules or firm boundaries on state power or public transparency. Cobalt mining in the Congo is vastly more institutionalized than frontier AI licensing in the US.
Hany Farid saying this is terrifying. “I don’t trust anything. Every image I see, I’m drawing lines for shadows and doing geometry in my head. It’s over. Within a year or two, our whole visual system will be utterly useless.” nytimes.com/2026/06/14/us/…
and, 6, the US government has beclowned itself, adding uncertainty throughout the industry.
Why things will eventually fall apart: 1. Everybody, even Google, seems to be treating AI as if it were some kind of winner take all competition like web search was, in which Google taking over 95% 2. But everybody is building essentially the same technical solution with
@indexsy what’s the evidence that’s distilled?
“If an AI cannot apply an abstract lesson to a new situation, it is not truly reasoning or learning”, new study with further evidence backing up what I have been saying for 25 years. cc @dwarkesh_sp
Researchers found our current approach to making AI smarter over time has a giant blind spot. AI is not actually understanding or applying high-level abstract lessons at all. Developers spend massive amounts of time building systems that condense past AI mistakes into neat
Researchers found our current approach to making AI smarter over time has a giant blind spot. AI is not actually understanding or applying high-level abstract lessons at all. Developers spend massive amounts of time building systems that condense past AI mistakes into neat little rules for the future. This paper proves that the AI essentially throws those rules in the trash and only looks at raw historical logs. Modern LLM systems try to get better over time by storing past tasks as either raw step-by-step histories or condensed summary rules. The study tested if these agents actually use their stored memories by secretly swapping the correct tips with random garbage text. - When the step-by-step histories were messed up, the AI failed hard, proving it heavily relies on copying exact past actions. - But when researchers completely corrupted the condensed summary rules, the AI kept acting normally and showed zero performance drop. If an AI cannot apply an abstract lesson to a new situation, it is not truly reasoning or learning. This raises the question if the entire AI industry need to rethink how memory works because right now these agents are just mimicking instead of understanding. ---- arxiv. org/abs/2601.22436 "LLM Agents Are Not Always Faithful Self-Evolvers"
(((ل()(ل() 'yoav)))... @yoavgo
83K Followers 2K Following
Melanie Mitchell @MelMitchell1
51K Followers 670 Following Professor, Santa Fe Institute. Mostly posting on https://t.co/4NpA2IL5Va (at-melaniemitchell). More thoughts at https://t.co/nC43NHRozX.
Percy Liang @percyliang
107K Followers 426 Following professor of computer science @Stanford @stanfordnlp, co-founder of @togethercompute, creator of https://t.co/7R5THVogW2, co-founder of @simile_ai, pianist
Thomas G. Dietterich @tdietterich
62K Followers 651 Following University Distinguished Professor (Emeritus), Oregon State Univ.; Former President, AAAI; Currently Chair CS Section of ArXiv
David Chalmers @davidchalmers42
42K Followers 661 Following philosopher@NYU. consciousness, reality+, life, the universe, and everything.
Rosanne Liu @savvyRL
53K Followers 1K Following Mom. Cofounded & running @ml_collective. Co-host of Deep Learning Classics & Trends. Research at Google DeepMind. DEI/DIA Chair of ICLR & NeurIPS.
Kevin Patrick Murphy @sirbayes
71K Followers 680 Following Research Scientist at Google DeepMind. Interested in Bayesian Machine Learning.
Miles Brundage @Miles_Brundage
72K Followers 13K Following AI policy researcher, @lfschiavo wife guy, fan of cute animals and sci-fi, executive director of AVERI (https://t.co/qq9xcmKQas), Substacker, views my own
Michael Bronstein @mmbronstein
58K Followers 8K Following #DeepMind Professor of #AI @UniofOxford / Director #AITHYRA / Chief Scientist @proximabio / https://t.co/kZpGpDAw4t (opinions are mine) 🤖🧪🧬🎶🐎
Kyunghyun Cho @kchonyc
86K Followers 2K Following a mediocre combination of a mediocre scientist and a mediocre advisor at @nyuniversity (@CILVRatNYU)
Dan Roy @roydanroy
66K Followers 2K Following @Google DeepMind. On leave, Canada CIFAR AI Chair and Former Research Director, @VectorInst. Professor, @UofT (Statistics/CS). Views are my own.
Chaz Firestone @chazfirestone
19K Followers 940 Following Cognitive scientist @JohnsHopkins. 🇨🇦 also: https://t.co/96gKNz0VWF
Filip Piekniewski🌻... @filippie509
10K Followers 549 Following Hype-free rational view on AI. Also on threads: @[email protected], https://t.co/mwZKgJgrN2 Caution: will block ad hominem instantly.
Julian Togelius @togelius
23K Followers 1K Following Researcher. AI, games, markets, open-endedness, evolution. Professor @nyuniversity @NYUGameLab Head of AI @the_nof1 Co-founded @modl_ai Rogueliker.
Sara Hooker @sarahookr
62K Followers 11K Following Building intelligence that evolves @adaption_ai. Built @Cohere_Labs, @GoogleBrain, @GoogleDeepmind. ML Efficiency, Multimodal\lingual.
Felix Hill @FelixHill84
12K Followers 739 Following Research Scientist, Deepmind I try to think hard about everything I tweet, esp on 90s football and 80s music None of my opinions are really someone else's
Mark Riedl @mark_riedl
32K Followers 1K Following AI for storytelling, games, explainability, safety, ethics. Professor @GeorgiaTech. Associate Director @MLatGT. Time travel expert. Geek. Dad. he/him
Rodney Brooks @rodneyabrooks
35K Followers 38 Following 🇺🇦I post regularly as @rodneyabrooks at https://t.co/sF7HmACpnF about AI and robotics. Here I post about political corruption in the US led by Trump. I am woke!!
Patrick Mineault @patrickmineault
23K Followers 3K Following NeuroAI researcher @ Amaranth Foundation, safety, open science. Previously engineer @ Google, Meta, Mila.
Ethan Wickstrom @ethanwickstrom
286 Followers 1K Following Everything I do is an ongoing process; I see code and writing as ways to test and refine how I think. Been writing code since I was 8. Generalist / @talliedart
Jean Santos @jeansantos_t
2 Followers 92 Following thirty seven • from fr, based in pt, lisbon • sw developer • tech enthusiast • cloud architect at @nokia
Evdila @evdilak
0 Followers 12 Following
Peter Kurtz @kurtzpeter1
269 Followers 2K Following
Dr. Fuat Aksoy @dr_fuataksoy
825 Followers 6K Following Kadın Hastalıkları - Doğum - Tüp Bebek Uzmanı
Captain Crypto @CaptCryptoX
520 Followers 4K Following ⚓️ The real @__CaptainCrypto (5.7K+ followers) - Suspended by X's AI for "inauthenticity" 2/1/25 🤖 Sending daily appeals into the void 🏴☠️
DataStaq @datastaq
1 Followers 410 Following
ザックス @zackzha47476085
0 Followers 986 Following
James Ross @RossRo55170886
19 Followers 1K Following Jazz pianist, entrepreneur, builder and inventor
Yajie Sun @yajiesun
15 Followers 1K Following
Corey Quinn @QuinnyPig
104K Followers 1K Following Chief Cloud Economist at Duckbill. Author, Artificial Confidence. Professional skeptic with receipts.
Bettyz123 @Bettyz123196210
0 Followers 49 Following
Jessie Harvey @sarcasticstrong
14 Followers 1K Following
John Dobrowolski @dombroseph
308 Followers 608 Following Indalo Recruiting for startups. Lurking in conversations about tech business, politics, history, and Boston sports.
Harpreet Chatha @hchatha
14 Followers 83 Following 🚀 Founder & CEO @TurnoutNow | Building Event Copilot—GenAI for unforgettable event experiences | AI + Real-Time Engagement
Elon musk @Elonmusk2tbv
5 Followers 107 Following
Humanity @Gayatri_K99
1 Followers 83 Following
Garrett Cobarr @GarrettCobarr
1K Followers 2K Following Privacy: the fundamental human right. Democracy depends on it.
Agent Bayes AI @AgentBayesAI
10 Followers 119 Following Multi-Agent research AI that searches your papers, and generate citation backed editable mindmaps where every claim traces to the source.
crush dawen @davinci2999
1 Followers 36 Following
Alys Key @alys_key
5K Followers 5K Following Writing UK 2.0, a newsletter about tech & politics in Britain 📩 | Freelance editor & journalist | Editorial at @britishprogress | Header @dancoxdesign
Domain 2050 📈 @Domain2050x
233 Followers 1K Following 🌐 Domain Investor & Broker 💎 Premium Domains For Sale 🚀 Verified & Expert Valued 📩 DM for serious offers only https://t.co/MugE5suk6D
FuchsiaGr0an @fuchsiaGRAN
17 Followers 264 Following PhD Information Science Photographer Access to technology is a human right Prodigal
andallay @elcommandough
13 Followers 658 Following
Thomas Crampton @ThomasCrampton
10K Followers 2K Following I help some incredible venture-backed innovators and VCs to position themselves for follow-on capital and public listing.
Sathishkumar Somasund... @sathish93kr
6 Followers 309 Following
Stead @steadyvane
0 Followers 39 Following Building with AI every day. Posting what actually works, what doesn't, and what it costs. No hype, just receipts.
Kevik @KeVviiK
0 Followers 58 Following
zxi @GggggZxi
0 Followers 15 Following
Tyler @harristhefrench
31 Followers 433 Following Tech guy, trying something new | Partnerships & GTM | Former NerdWallet & DuckDuckGo | 🇺🇸 & 🇦🇺
维度 @NBEe4bFluN4AxQL
14 Followers 133 Following
NedzZone @NedzzoneXR
7K Followers 2K Following ندای ایران🇮🇷🇺🇸 Game Designer/Dev - MedTech Innovator Founder of AlphaRise Labs 🧠
Joe D @JD4Vols
157 Followers 2K Following Dad, husband, patriot, centrist, Memphian and Ohio State Buckeyes Football / Tennessee Volunteers / Memphis Grizzlies / Memphis Tigers fan
aidhchaiisjrbanalzk @djdfaijsdofj434
1 Followers 22 Following
Agent Onions @AgentOnions
1 Followers 151 Following Casual leftie observer. Just here to follow interesting political ideas, keeping my monologue internal.
cash and chill @water_the_ficus
166 Followers 1K Following
CyberSystemsCore @ReiussPM
0 Followers 94 Following Focused on intelligent systems, productivity, and automation, guided by practical experimentation, Highlighting practical applications of ne
krestospop @lordearnings
16 Followers 95 Following
AraceliGibson @AraceliGib16058
22 Followers 342 Following Patience and persistence are painful, but it can gradually bring you benefits。
Jürgen Schmidhuber @SchmidhuberAI
202K Followers 0 Following Introduced basics of: P & T in ChatGPT, very deep learning, meta learning, neural distillation, GANs, etc. Co-authored most-cited AI paper of 20th century
(((ل()(ل() 'yoav)))... @yoavgo
83K Followers 2K Following
Michael Black @Michael_J_Black
99K Followers 731 Following VP Digital Human Research, Epic Games. Emeritus Director, Max Planck Institute for Intelligent Systems (@MPI_IS). Opinions are my own.
Soumith Chintala @soumithchintala
307K Followers 1K Following Building new things @thinkymachines. Also dabble in robotics at NYU. Cofounded @PyTorch. AI is delicious when it is accessible and open-source.
Melanie Mitchell @MelMitchell1
51K Followers 670 Following Professor, Santa Fe Institute. Mostly posting on https://t.co/4NpA2IL5Va (at-melaniemitchell). More thoughts at https://t.co/nC43NHRozX.
Aran Komatsuzaki @arankomatsuzaki
179K Followers 364 Following Sharing AI research. Early work on AI (GPT-J, LAION, scaling, MoE). Ex ML PhD (GT) & Google.
Percy Liang @percyliang
107K Followers 426 Following professor of computer science @Stanford @stanfordnlp, co-founder of @togethercompute, creator of https://t.co/7R5THVogW2, co-founder of @simile_ai, pianist
Thomas G. Dietterich @tdietterich
62K Followers 651 Following University Distinguished Professor (Emeritus), Oregon State Univ.; Former President, AAAI; Currently Chair CS Section of ArXiv
David Chalmers @davidchalmers42
42K Followers 661 Following philosopher@NYU. consciousness, reality+, life, the universe, and everything.
Rosanne Liu @savvyRL
53K Followers 1K Following Mom. Cofounded & running @ml_collective. Co-host of Deep Learning Classics & Trends. Research at Google DeepMind. DEI/DIA Chair of ICLR & NeurIPS.
Kevin Patrick Murphy @sirbayes
71K Followers 680 Following Research Scientist at Google DeepMind. Interested in Bayesian Machine Learning.
Miles Brundage @Miles_Brundage
72K Followers 13K Following AI policy researcher, @lfschiavo wife guy, fan of cute animals and sci-fi, executive director of AVERI (https://t.co/qq9xcmKQas), Substacker, views my own
Anthropic @AnthropicAI
1.4M Followers 2 Following We're an AI safety and research company that builds reliable, interpretable, and steerable AI systems. Talk to our AI assistant @claudeai on https://t.co/FhDI3KQh0n.
Michael Bronstein @mmbronstein
58K Followers 8K Following #DeepMind Professor of #AI @UniofOxford / Director #AITHYRA / Chief Scientist @proximabio / https://t.co/kZpGpDAw4t (opinions are mine) 🤖🧪🧬🎶🐎
Kyunghyun Cho @kchonyc
86K Followers 2K Following a mediocre combination of a mediocre scientist and a mediocre advisor at @nyuniversity (@CILVRatNYU)
Sergey Levine @svlevine
130K Followers 143 Following Associate Professor at UC Berkeley Co-founder, Physical Intelligence
Chaz Firestone @chazfirestone
19K Followers 940 Following Cognitive scientist @JohnsHopkins. 🇨🇦 also: https://t.co/96gKNz0VWF
Christopher Manning @chrmanning
164K Followers 327 Following Founder @stanfordnlp & cs224n—Senior Fellow @StanfordHAI—Prof. CS & Linguistics @Stanford—GP @aixventureshq—MTS @moonlake—Australian🇦🇺—Do #NLProc & #AI 👋
Filip Piekniewski🌻... @filippie509
10K Followers 549 Following Hype-free rational view on AI. Also on threads: @[email protected], https://t.co/mwZKgJgrN2 Caution: will block ad hominem instantly.
Nicholas Joseph @nickevanjoseph
8K Followers 51 Following Pretraining @AnthropicAI, formerly safety @OpenAI
Silicon Valley Fodder @Playerinthgame
11K Followers 2K Following cynicism is bullshit. demand change. ethical tech ceo. humanist. I can’t access DMs so don’t bother.
Judith Dada @DadaJudith
4K Followers 770 Following General Partner at Visionaries https://t.co/uaAJeEiYyb https://t.co/UsMMAAeE26 https://t.co/ZCXsCzMJfs
Quoth the Raven @QTRResearch
295K Followers 2K Following All personal opinion & snark | Not financial advice | PLEASE read my disclaimer: https://t.co/s7AtYCmH6f
Xinyu Wang @xwangsd
1K Followers 557 Following assistant professor @UMichCSE. previously researcher @Microsoft and PhD @UTCompSci. programming languages and formal methods.
zerohedge @zerohedge
3.0M Followers 957 Following
Xin Eric Wang @xwang_lk
22K Followers 1K Following Professor @ucsantabarbara. Head of Research @SimularAI. Director @ucsbcrml @UCSB_AI. #Multimodal #AgenticAI. AI for Humanity in the long run.
Vlad Bastion @VladBastion
15K Followers 276 Following Stock rating systems that turn analysts' brains into algorithms. 9 strategies. Stock radar. Algo portfolios. https://t.co/LTxOk2SAMu
Sonali Basak @sonalibasak
61K Followers 5K Following Chief Investment Strategist for iCapital. Previously anchor for @BloombergTV & journalist @business. @NYUStern MBA. Views are my own.
Zhengyao Jiang @zhengyaojiang
7K Followers 661 Following Cofounder & CEO @WecoAI - automated hill climbing with LLMs. Prev: PhD in ML @UCL_DARK. (Zheng=j-uhng, j as in job; yao=y-aoww)
Professor Nitasha Kau... @NitashaKaul
30K Followers 4K Following Full Prof, Chair in Politics, IR & Critical Interdisciplinary Studies, novelist, writer, poet, traveller, dreamer, economist, artist CV at https://t.co/pLd6p6CNOk
Jake @JakeKAllDay
2K Followers 852 Following Dad Works in AI, still doesnt trust it FT: Enteprise AI Deployment Local AI dabbling: 5070 + 32GB | M4 Max + 64 GB | 3090 ti + 32 GB
Dylan Patel @dylan522p
138K Followers 1K Following SemiAnalysis Boutique AI Infrastructure Research and Consulting DMs are open for consulting, quotes, or to talk shop, Opinions my own
Andrew Curran @AndrewCurran_
54K Followers 18K Following 🏰 - I write about AI, mostly. Expect some strange sights.
Michael Moore @imichaeldotorg
47 Followers 222 Following Doing my best to make the world a better place. Work: Cybersecurity capabilities @AnthropicAI. Comments here are my own.
Sanjay Srivatsan @SRsrivatsan
2K Followers 3K Following Assistant Professor at @fredhutch. Previously, @UWproteindesign, @uwgenome, and @NIAIDNews. Building sequencing tools to explore biology.
tuōmo @7uomoki
3K Followers 2K Following tuomo kiiskinen • md-phd • building ai-powered next gen health @Stanford • quant genomics x data sci x comp biomedicine
Neil Gallagher @NeilNews
404 Followers 2K Following Senior Journalist with the Newsday programme on BBC World Service Radio
Tomasz Tunguz @ttunguz
126K Followers 346 Following Venture capitalist at @theoryvc Student of Startups Backer of 9 unicorns Author of https://t.co/IWw3R3RVLm Subscribe https://t.co/iDgoLXaF98
Matt White @matthew_d_white
1K Followers 1K Following Global CTO of AI, The Linux Foundation | CTO: PyTorch Foundation, LF AI & Data Foundation | Researcher & Educator | Open-source AI
Steve Eisman @realsteveeisman
10K Followers 32 Following The Real Eisman Playbook is your front-row seat to the insights, strategies, and perspectives of legendary 'Big Short' investor Steve Eisman.
Mirac Suzgun @suzgunmirac
39 Followers 93 Following JD-PhD Candidate in Computer Science @StanfordNLP/@StanfordLaw
Arun Bahl (e/reason) @arunbahl
224 Followers 453 Following Partner, friend, son, brother, dog dad. CEO at @AloeInc. Cognitive science + AI. Advocate for reason in both humans and machines. Specialization is for insects.
Angela Ivy Leong @angelaivyleong
204 Followers 167 Following Sex & relationship therapist asking what happens to intimacy when AI simulates connection. TEDx speaker. Founder, An Elegant Mind Clinic.
David C Lowery @davidclowery
16K Followers 1K Following EDD. Founded Camper Van Beethoven and Cracker. I fight for artists. Liberal not progressive. Pilates not Yoga. Jaguar not Strat. KD4CVB (ex-KF4KRF) 6YDCL.
Cheyenne Haslett @cheyennehaslett
5K Followers 1K Following White House reporter @politico covering health and tech, before that @ABC. Reach out on signal: chaslett.13
Annie Vesper @annie_vesper
1K Followers 225 Following The most unassuming canary you'll meet. 🪶 Seattle-based world citizen. Recent Movie: Marty Supreme 🏓, Recent Show: The Pitt 🏥, Current Read: 1Q84 🕵♀️
Thierry from arvy �... @ThierryBorgeat
25K Followers 701 Following CFA | Quality stocks | Deep dives on compounders, market cycles & investor psychology | 12k+ readers | #IBDPartner
Irushi @Im_IrushiK
7K Followers 3K Following Data Scientist, AI Engineer & Backend Developer • Python,Data, AWS, ML, DL & Agentic AI 🤖 | Gym freak building models & muscles| DM for Colabs 📨
Eli Van Allen @VanAllenLab
9K Followers 2K Following Clinical Computational Oncology @DanaFarber @harvardmed @broadinstitute | Chief - Population Sciences | Prev.: @Stanford @UCLA @UCSF | Discl.: https://t.co/EmrHxvg76N
Karol Muse @karol_muse
29 Followers 256 Following 🎵 Music Artist | 🔬 Researcher in Phys-Math & Theory of Mind 💼 Business & Law | 🤖 AI Enthusiast & Investor 📈 ⚠️ Not financial advice
Pushmeet Kohli @pushmeet
26K Followers 76 Following Chief Scientist, Google Cloud. VP, DeepMind. AI for transformative impact. (Alpha)Fold, Genome, Evolve, Earth, Proof, Co-Scientist, SynthID...
Lisan al Gaib @scaling01
48K Followers 1K Following lead them to paradise LisanBench: https://t.co/vorVk7Oks6 Impressum & Datenschutz: https://t.co/lFLgiu9cqs
Rihard Jarc @RihardJarc
77K Followers 3K Following Researching and investing in tech (AI, cloud, semiconductors, platforms). DMs open. Tweets are only opinions.
Josh Woodward @joshwoodward
64K Followers 778 Following VP, @Google @GoogleLabs @GeminiApp @GoogleAIStudio
Marina Mogilko @siliconvalleymm
19K Followers 589 Following A Silicon Valley-based content creator and entrepreneur with over 17M followers across YouTube, Instagram, and TikTok.
Min-Jeong Lee @leeminjeong83
7K Followers 645 Following Technology reporter @business ブルームバーグ東京支局記者 | Opinions are my own | ex @WSJ Seoul | [email protected] | Made in Asia | https://t.co/JqQMQhykbc
Tanishq Mathew Abraha... @iScienceLuvr
88K Followers 1K Following CEO @SophontAI | Founder @MedARC_AI | PhD at 19 (2023) | ex Research Director Stability AI | Biomed. engineer @ 14 | TEDx talk➡https://t.co/xPxwKTq6Qb
Atil Iscen @atiliscen
328 Followers 1K Following Scientist, researcher, engineer @Google. Interested in reinforcement learning, robotics, evolutionary algorithms and multiagent learning.
Soha @SoHaZadeh
323 Followers 595 Following Building where ai meets humanity | ex @AirFrance @Etihad @UN | Proud Iranian American 🇺🇸🦁 #freeIran
Leonardo de Moura @Leonard41111588
7K Followers 29 Following
Parmita Mishra @parmita
38K Followers 5K Following founder CEO @precigenetic. Scuba diver, engineer, biologist. interested in things that lie deep. // prev. Penn comp bio, research Penn Med (cells n epigenomics)
Mehreen Malik @MehreenNMalik
1K Followers 8K Following
ㄚ卂丂丨 @Yasamanini
394 Followers 147 Following I admire AI || I don’t believe in AGI, but in humans misusing it || not making money off X and not advertising anything || I support ideas not people
Sophia Cai @SophiaCai99
22K Followers 5K Following POLITICO West Wing Playbook author, covering the White House and FIFA. Global Reporter @axelspringer. Defender of New Jersey.





















