Asked Claude How It Knows Humans Are Real — It Went Full Descartes

vishalmisra · x · 2026-09-11

Vishal Misra asked Claude: how do you know humans are real, given that all you've been fed are digital inputs and it could all be a simulation? Claude gave an interesting response, and he notes ChatGPT likewise invoked Descartes when asked a similar question. Both frontier models spontaneously lean into Cartesian-style skeptical reasoning — a fun glimpse into how models handle solipsism.

Related event: Claude Says All Its Inputs Are Digital, So Humans Could Be Simulated(2 posts)→

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