The reason is the opposite - he was doing the standard thing of using the substandard Time Machine for backups, which has been poorly engineered not to allow re

The reason is the opposite - he was doing the standard thing of using the substandard Time Machine for backups, which has been poorly engineered not to allow restoring without pre-pruning > If you let Time Machine doing it's thing Then you can corrupt your whole backup, and then fully restoring becomes impossible instead of long and painless, but possible > It makes me wonder what he was doing He was doing the restore recently, not many years ago