Ethan Mollick's new book charts 30 months of AI progress, from cyborg to conjurer work

rseroter · x · 2026-10-23

Ethan Mollick released Co-Existence, 30 months after Co-Intelligence, using the gap to chart AI progress. He delegated chart-making to Claude Opus 5.5 orchestrator agents in Claude Projects, finishing hours of research/graphing in minutes. The book adds a third work mode—Conjurer (define task, dispatch agents, evaluate)—to Centaur and Cyborg from his first book. His framing: "this is the worst AI you will ever use," living on an exponential.

Related event: Ethan Mollick's new book charts AI's leap from 4 minutes to 17 weeks of human work(5 posts)→

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