Gary Marcus Insists AI Bubble Will Burst; Ben Goertzel Pushes Back
From November 9 to 10, Gary Marcus posted a series of messages reiterating and expanding his long-standing bearish stance on generative AI: the bursting of the AI financial bubble is no longer a question of "if" but "when."
Confirmed
- Core argument: generative AI is still improving, but each increment costs more and more—diminishing marginal returns make this input-output model financially unsustainable. He ties this back to his earlier "deep learning is hitting a wall" view.
- Predictions: valuations will be crushed, some companies will seek bailouts; the pure Scaling route has run its course; neurosymbolic AI will win out and industry focus will shift accordingly.
- On November 10 he shared a satirical comparison: Google issuing 100-year bonds while depreciating hardware over 6 years, even though trained models have a useful lifespan of only 0-4 months—cited as further evidence of the bubble.
Unconfirmed
- The exact timing of the bubble's collapse, which Marcus himself admits he doesn't know.
- Claims such as models having a "useful lifespan of only 0-4 months" come from satirical content he reposted and are not independently verified.
Why it matters
Marcus is one of the most prominent persistent AI bears. This round of commentary links the financial logic of "soaring marginal improvement costs" to macro consequences like valuation compression and bailouts, offering a systematic counter-narrative to the current AI investment boom—one worth tracking against future market data.
2026-11-09 ~ 2026-11-10 · 7 related posts
Primary sources
- Gary Marcus: soaring costs of incremental AI gains point to a looming bubble burst — GaryMarcus ·
- Ben Goertzel pushes back on Gary Marcus: predicts massive AI industry growth through 2027 — bengoertzel ·
- Gary Marcus: the AI bubble will burst, pure scaling is done, neurosymbolic AI already won — GaryMarcus ·
- [source] Gary Marcus: soaring costs of incremental AI gains point to a looming bubble burst — GaryMarcus · 2026-11-09
- Gary Marcus: GenAI improvements are coming at ever greater, fiscally unsustainable costs — GaryMarcus · 2026-11-09
- Gary Marcus: the question is no longer if the AI bubble bursts, but when — asusarla · 2026-11-09
- Gary Marcus: the AI bubble burst is a matter of when, and pure scaling is done — GaryMarcus · 2026-11-09
- [source] Ben Goertzel pushes back on Gary Marcus: predicts massive AI industry growth through 2027 — bengoertzel · 2026-11-10
- Ben Goertzel predicts continued massive AI industry growth through 2027 — bengoertzel · 2026-11-10
1 near-duplicate retellings: GaryMarcus