The Overhang
Ethan Mollick @emollick · substack · 2026-09-18 · ★★★ · archived
The most widely read mainstream take after Astra and the pacing week: models like GPT-6 Astra and Fable 5.1 already outrun what almost anyone does with them.
Summary
Writing after the reported AI resolution of the Navier-Stokes problem and the weeks of AI-risk news, Mollick shifts attention to the "capability overhang": the gap between what GPT-6 Astra and Fable 5.1 can do and what most people use them for. He argues human institutions move too slowly to absorb the change, and names four personal advantages for working with AI: deep knowledge, wide knowledge, taste and agency. Examples include turning 1977's text-based Zork into a 3D game and reconstructing Umberto Eco's library in 3D. The post also promotes his book "Co-Existence" (Oct 20). Title and date confirmed by fetching the page.
Archived text
The capability overhang, the gap between what these models can do and what almost anyone is doing with them, is an opportunity.
Related events
- OpenAI releases GPT-6 Astra, its first GPT-6 model 2026-09-03
- Anthropic releases Claude Fable 5.1 and Claude Mythos 5.1 2026-09-01
- OpenAI claims a Millennium Prize problem: 10,000 AI agents prove forced Navier–Stokes blow-up; priority dispute erupts 2026-09-08
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