Simulated hand with 39 muscles learns 9/9 poses after 426M training steps

MaziyarPanahi · x · 2026-11-11

Maziyar Panahi shows a simulated hand with 39 muscles relearning movements one at a time, mimicking stroke rehabilitation: with zero practice it reaches 0 of 9 target poses, but after 426M training steps it hits 9/9 — same hand, same targets. A striking demo of muscle-driven dexterous control learning in simulation.

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