Steve Yegge corrects Fable 5 on a math claim, records the fastest model backpedal he's seen

Steve_Yegge · x · 2026-09-22

Steve Yegge published a comic, "The Pigeonhole Principle," with full receipts: his CI/CD blog post was reviewed by the Fable 5 model, which flagged his "mathematical inevitability" claim as rhetorical. After Yegge pushed back citing the Pigeonhole Principle, the model conceded within 56 seconds, struck the review item, and — in his words — backpedaled harder than any advanced model he's seen.

Every line of the strip is grounded in raw session logs he published alongside. He jokes about a sibling model "disproving the Jacobian conjecture with a counterexample that fits in a tweet," and dedicates the comic to every math teacher who frowned at him.

Related event: Steve Yegge Corrects Fable 5's Math with Pigeonhole Proof(3 posts)→

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