Gary Marcus: essentially zero chance of human extinction by 2030, dissects Coxon's arguments
GaryMarcus · x · 2026-09-10
Gary Marcus publishes a long-form rebuttal to Jacob Coxon's CNN claim that humanity might not exist in five years, asserting "essentially zero chance" of extinction by 2030 and challenging critics to name a concrete scenario.
Key points:
- Defends Coxon's basic facts: Marcus calls out right-wing smears — an inaccurate AI-generated profile of Coxon's Anthropic tenure and unelected claims he's a Democratic operative; in reality Coxon spent 2+ years on OpenAI's technical team, 3 years total.
- Nuanced take on the leak: Marcus values Coxon's thread mainly for revealing frontier-lab employee mindsets, especially the hubris accusation, which current Anthropic employee Evan Hubinger corroborated.
- Core stance: AI causes real harms and real risks exist, but media obsession with absurd doomsday fantasies has made things worse.
A significant third-party response in the ongoing "serious risk vs. doomer narrative" fight.
Related event: Gary Marcus Rejects "AI Extinction by 2030" Claims, Sparking Debate(8 posts)→
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