The ideas here are retold from the historical record, drawn from the sources each event cites. Wojciech Zurek never posted on Veritula. To report a mistake, email veritula@dennishackethal.com.
Chronicled events
- #5905
Quantum errors can be corrected faster than they arise, as long as each step errs less often than a certain threshold. Nest codes inside codes, and a quantum computation can run as long as needed, as accurately as wanted.