Oh okay. That's a pretty different suggestion from the comic.

Would you suggest random 128 bit numbers, then? Otherwise it's hard to see what else would serve the same role without being UUID in a trenchcoat. And having identifiers is important.

Yeah I would really like if UUID was just 128 bits of randomness and nothing else. The whole version thing sucks, and my point (which you are right in that the ordering is a little off) is that UUIDv4 is the only good one and the rest basically should not exist. UUIDv4 itself is ruined by the fact that it needs to have a version embedded in it because the other ones exist.