Since it's my anniversary today, and I'm already 10 minutes late leaving, this won't be as complete as I'd like it to be. What difference would it make to you from our present point of view how God became God, or how long ago?? I don't profess to understand that, and I don't think anyone can. The Bible never says, therefore no one knows--all that exists is conjecture. But, you freely admit that in this infinite universe, something with the powers we attribute to God COULD come to be. And if that already happened, then there WOULD be a God.