User blog comment:Ravager134K/my theory on the origin of the chimera/@comment-1060384-20100131171322

That's an interesting theory. It's obvious that another race will appear and then it'll turn all alien vs. predator with Humans stuck in the mix of things. The only bit I can disagree with is Time travel. Insomniac have tried to make it more sciencey then fictional and if there was time travel the Chimera or the others would wipe out Humans just like that.