> that schizophrenia itself has a bit of a split personality.
Schizophrenia is when you hear "god" telling you to kill that actress.
DID is when at times you really believe you are god, then a moment later you believe you're a receptionist at a law firm, then you believe you're a construction worker - and your personalities may or may not know one another and be friends. It's a really messed up condition - I had a friend with DID once and it was unnerving because I'd wonder who I would be talking to next time I'd see her. More recently I've encountered someone I've been chatting online with who at times insists she is Hathor, the ancient Egyptian goddess, and other times insists she is a different "god" and other times she is just her. Now, she could just be trolling people online but I really do think she genuinely has DID. It's a very strange condition.