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Opus 5.5 designs a cutaway tunnel boring machine, then the street caves in

The author asked Claude Opus 5.5 to design a tunnel boring machine that could be cut in half, then turned the screw conveyor one notch too fast and the street above sank.

Konstantin Saifoulline
@konstantinsaifoArchived 2026.10.06Originally posted 2026.10.06
Konstantin Saifoulline @konstantinsaifoOriginally posted 2026.10.06
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I asked Claude Opus 5.5 to build a tunnel boring machine I could cut in half. Then I turned the screw conveyor one notch too fast and the street above it sank.

x.com/konstantinsaifo/status/2107173860403724715Archived 2026.10.06 10:14