Don't forget that we saw the puddle all life on earth originated from during All Good Things... Although, I'd blame it perhaps more on fallout from the Eugenics War. Making perfect humans for a ruling class of SUPERMEN (Augments? Where they really afraid that DC Comics (Warner Brothers) would sue? Pussies.) is nice but they would have introduced all sorts of weird shit into their soldiers, servants and athletes to make them perfect at their proscribed profession in service tot he Supermen.