While we're AI wanking, I liked the theory that more advanced species like Engineers and Predators don't have AI BECAUSE they're smarter than us
That the one in Prometheus chimped out the second he realized what David was because he was like "oh shit oh fuck the humans are so stupid that they actually built thinking machines godamn it I gotta blow up their planet right now before it spreads fuuuck"

Seems like a solid enough headcanon, anything directly refute it?