Eric Jang resurfaces 2021 essay: bet on compute pressure sparking spontaneous intelligence
ericjang11 · x · 2026-10-11
Eric Jang, formerly of Google's robotics team, resurfaced his 2021 essay "Robots Must Be Ephemeralized," reaffirming his bet that compute pressure leads to spontaneous intelligence.
Key points from the post:
- Sim2Real was central to his team's work across locomotion, navigation and manipulation: statistically reproducible, safe for learning, and avoids maintaining fleets of wear-prone robots.
- Quadruped and dexterous-hand hardware survive only a few hundred trials before wearing down, and drifting dynamics make learning harder.
- Simulation also sidesteps code changes invalidating old data, since regenerating datasets is cheap.
- Jang admits he was ideologically opposed to simulation research for years and spent three years on a project avoiding sim2real.
His conclusion: scale robotics by "ephemeralizing" the real world — let compute, not physical trials, produce intelligence.
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