God gave us a clue. He did it. From a strictly scientific viewpoint, tell us how hot of a temperature was created at "The Big Bang". If that did not sterilize the universe, I don't know what would. Even with all of the nutrients and organics available, life was only able to exist because God created it.
Well said. That is our only clue. The monobloc (ok, it is a degraded theory but easier to visuallize) exploded when it did for a reason. The reason was the Word.