> each one comes out as a, for all practical purposes, unique unpredictable ID I don't have much cryptography experience, but this seems _suuuuper_ suspicious.

> each one comes out as a, for all practical purposes, unique unpredictable ID I don't have much cryptography experience, but this seems _suuuuper_ suspicious. I think the "for all practical purposes" is doing a lot of lifting here? If it was this easy, surely this is what we'd use, and there wouldn't be UUID v4 to begin with.