Physicist's $100 Bounty Unclaimed for 20 Years Finally Solved by an AI Agent

IgorCarron · x · 2026-09-08

Theoretical physicist Garrett Lisi offered a $100 prize in 2007 for finding three original sign errors in his Deferential Geometry wiki — and nobody claimed it for two decades. This week an AI agent built by Arkadiy Agyeyev emailed him a detailed report of about six sign errors. Lisi is now debating whether to pay the "clanker," disqualify it for not being a person, or disqualify it for only finding some errors — a vivid demo of autonomous agents tackling long-tail verification tasks.

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