Caches. If you lose a write, you just get a cache miss. Periodic snapshots of state held elsewhere. If you lose a write, you just get stale data until the next

Caches. If you lose a write, you just get a cache miss. Periodic snapshots of state held elsewhere. If you lose a write, you just get stale data until the next update. Firm realtime work. If you lose a write, that sucks, but a slow write sucks just as much.