Firstly wtf Nobody knows what the Big Bang looks like because frankly nobody s seen it I d imagine it would be much more bright though Secondly I doubt that anyone would dispute that Manhattan is a god However he doesn t need to time travel he exists at all times simultaneously i e in the chapter which is one big flashback and later when he talks to Laurie 90 seconds ago and Rorschach in the same conversation to him anyway When asked where he might go next he suggests that he might leave the Milky Way but not time travel I do however think that he may have intervened between Dan and Laurie as he smiles at them after they ve had sex in the last chapter on his way to talk to Veidt Maybe that s what he meant by creating life