Dyna Robotics: training on 1M hours of egocentric video broke everything that worked at 10K
ZeYanjie · x · 2026-08-18
Dyna Robotics published a thread on how they trained Dyna-2 repeatably on over 1,000,000 hours of egocentric video. They note few people discuss the infrastructure that enables fast iteration across models, data and hardware — and at this scale, most practices from 10,000 hours failed:
- Ingestion throughput capped at 14,000 episode-hours per week — a million hours would take over a year;
- Building a training manifest took 48 hours before a run could even start;
- Reading a petabyte from cloud storage during training exposed GPUs to latency and packet loss.
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