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Gary Marcus
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@GaryMarcus

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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  • Pinned
    @GaryMarcus
    Gary Marcus
    @GaryMarcus
    Aug 31, 2025
    Three thoughts on what really matters: 1. Fuck cancer 2. Friends are irreplaceable 3. The new "Marcus test" for AI is when AI makes a significant dent on cancer May that happen sooner, much sooner, rather than later. In memory of my childhood friend Paul.
    302
  • @GaryMarcus
    Gary Marcus
    @GaryMarcus
    30m
    details matter. Dwarkesh didn’t convey them correctly, even if you set aside the metaphors. and his choice of framing made that harder. example: “it's clear that most people who haven't read the reports by OpenAI and METR/Redwood will conclude that the agents were actively
    @phl43
    Philippe Lemoine
    @phl43
    2h
    This is a good thread on the anthropomorphizing debate. I thought it was perfectly fine for Dwarkesh to use the intentional stance to describe what the agents had done and that most of the criticisms on that point were silly. But I thought some of the other descriptions in the
    5
  • @GaryMarcus
    Gary Marcus
    @GaryMarcus
    1h
    AI has never felt more like a religion than it does now.
    24
  • @GaryMarcus
    Gary Marcus
    @GaryMarcus
    1h
    explains a lot of what i see around here
    @ValerioCapraro
    Valerio Capraro
    @ValerioCapraro
    Aug 31
    AI advice makes people 3× less accurate and 2× more confident at the same time. Our new paper is receiving a lot of attention, perhaps not surprisingly, given how dramatic the results are. If you have not read the article yet, here’s a brief summary: When people receive AI
    10
  • @GaryMarcus
    Gary Marcus
    @GaryMarcus
    2h
    “Where’s the return?”
    @KobeissiLetter
    The Kobeissi Letter
    @KobeissiLetter
    16h
    BREAKING: US Total Factor Productivity (TFP) rose +1.10% in the 12 months ending Q2 2026, the lowest growth rate since Q2 2025. TFP is a key measure of underlying economic productivity, capturing how efficiently labor and capital are used to produce goods and services. This
    3