1,024 simulated profiles react to scenarios in prototype built on Jev

TheMoonMidas · x · 2026-09-17

Developer @midwesternrobot built a prototype on TypeSafe's new Jev model: 1,024 state-weighted simulated personas react to scenarios, first tested with an alien encounter. He notes the speed is remarkable without a bespoke classifier. Caveat: these are simulated reactions, not surveys of real people — effectively a virtual crowd you can run any scenario through.

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