[crest]

You can't use the deduplication and compression which amplifies bitrot if your memory is (too) suspect and backups don't help you unless you notice the problem quickly enough.

Unreliable memory can corrupt your data in ways you won't notice immediately by which point the corruption could have spread. Lets use a SQLite database as example: an index is read into memory, a bit flips in memory, the wrong result is returned by the corrupted index, the corrupted cached index is used in queries, a corrupted query result used to update the database, the corrupted cache wasn't marked dirty so it doesn't get written back to the database file. Repeatedly backing up the ticking logic bomb created this way doesn't help you.