> the number of people who have been revived after this procedure This is going to be zero by default even with perfect preservation, given that the whole poin

> the number of people who have been revived after this procedure This is going to be zero by default even with perfect preservation, given that the whole point is to freeze people because current medical technology can't keep them reliably alive for whatever reason. There's no reason to even think about trying to revive people (rather than simply preserving them as thoroughly as possible) until geriatrics, cancer medicine, or whatever have advanced considerably.