Google's AI Overviews spew out millions of false answers per hour, bombshell study reveals trib.al/1ao7qB1 [Translated from EN to English]
→ View original post on X — @garymarcus, 2026-04-09 19:22 UTC

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Google's AI Overviews spew out millions of false answers per hour, bombshell study reveals trib.al/1ao7qB1 [Translated from EN to English]
→ View original post on X — @garymarcus, 2026-04-09 19:22 UTC
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This – “The CEO of Google DeepMind (@demishassabis) just admitted that if the decision had been his, we would've cured cancer before anyone ever used ChatGPT.” is exactly what i am trying to say in my pinned tweet, in different words.
— Gary Marcus (@GaryMarcus) 9 avril 2026
The fact that we left things to Altman… https://t.co/Ei1gkhDNKO
This – “The CEO of Google DeepMind (
@demishassabis
) just admitted that if the decision had been his, we would've cured cancer before anyone ever used ChatGPT.” is exactly what i am trying to say in my pinned tweet, in different words. The fact that we left things to Altman
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Perhaps because professional investors would look more carefully at the numbers? Wouldn’t want that!

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Yesterday’s Mythos announcement from Anthropic was overblown. • Sandboxing was turned off, so test didn’t show much about the real world. • Cheap open-weight models can (already) do some similar stuff • No evidence that Mythos itself is a major qualitative jump. In short,

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My considered opinion is that The Mythos stuff was mostly a myth. Take it as a serious warning sign that we need to get our act together with respect to cybersecurity. But don’t take the details seriously.
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the graph is about *perceived capability* not intrigue or excitement or fun or whatever. i think you are conflating enthusiasm with capability assessment.

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Folks, you can relax. Mythos is not some off-trend exponential gain. And the gains weren’t about recursive self-improvement. Good thread from @ramez
.
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This is literally why I wrote Taming Silicon Valley. https://t.co/ihTPmtbU8M
— Gary Marcus (@GaryMarcus) 8 avril 2026
This is literally why I wrote Taming Silicon Valley. Big Brain AI (@realBigBrainAI) Director James Cameron on why Big Tech owning AGI is scarier than any science fiction he's ever made: "AGI will not emerge from a government funded program. It will emerge from one of the tech giants currently funding this multi-billion dollar research." And when that happens, he warns, you won't get a vote on it: "So then you'll be living in a world that you didn't agree to, didn't vote for, that you are co-inhabiting with a super intelligent alien species that answers to the goals and rules of a corporation." A corporation that already knows everything about you: "An entity which has access to the comms, beliefs, everything you ever said, and the whereabouts of every person in the country via your personal data." From there, the slide toward something far darker is shorter than most people think: "Surveillance capitalism can toggle pretty quickly into digital totalitarianism." And even the best-case outcome isn't reassuring. Tech giants becoming the self-appointed arbiters of human good is, as he puts it, the fox guarding the hen house. He's not buying the idea that these companies would stay benevolent with that kind of power: "They would never ever think of using that power against us and strip mining us for our last drop of cash." The sarcasm is the point. Cameron has spent four decades imagining worst-case futures on screen. His verdict on this one: "That's a scarier scenario than what I presented in the Terminator 40 years ago, if for no other reason than it's no longer science fiction." — https://nitter.net/realBigBrainAI/status/2041901452474642630#m
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What Should We Take From Anthropic’s (possibly) Terrifying New Report on Mythos? – @garymarcus’s latest @CACMmag cacm.acm.org/blogcacm/what-s…
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it’s surely NOT a pure LLM (eg heavily uses symbolic tools and is hardcoded to do so), and surely includes neurosymbolic components, so it is to some degree vindication for my central claims.