If our universe was created by God, then for this premise I will make a little guess:
How is far to complex, but why may be easier to estimate.
Is God all-mighty? Does God need anything?
If God has a need, then when he does not get what he needs, he will be worse off then if he did get what he needed; this would mean God was not invincible. Humans, for example, need to breath. Needs are weaknesses, if denied, but also – God would not act if he needed nothing, because he would no-longer have any reason or desire to act. All life acts for its own reason, whether it be an exercising of ability or a form of work for self.
So, can God have a need and need-nothing at the same time? Or can God have a need and be invincible at the same time? Only if God’s needs where not deniable, would God be able to have both need and invincibility.
The only way that God’s need could not be denied, is if he was always able to have what he needed, and was independent from a higher environment or home in which to feed off of. This would mean a form of automatic self-sufficiency; at the same time, God created everything, even though he did not need an environment and was self-sufficient?
So, why would he create a universe if he had no external need?
Well, God created the universe, he made it, he ‘eat’ it.
Life on earth consumes matter and energy, then uses it to build and power itself. We consume and restructure things, we DO NOT “create”, we simply change our environment and utilize it for our own need. God does not need to do this, because God is above and beyond an environment.
If God was self-sufficient, and had need – then it would be most likely that he created what he needed, instead of consuming it from an environment that he was within and lesser then.
Much like a nuclear power plant, God’s internal energy source is based on reactions, and the waste is discharged as the reactions continue to take place. “Big bangs” are stable and can support life, because much like an atomic-power-plant, these powerful reactions must be stable and controlled if they are able to be utilized at all. Universes have their own time and space/distance, within themselves, but God is beyond these dimensions, therefor these sub dimensions can infinitely be created without using up a finite amount of room for universes to exist within.
Universes are the byproduct of God’s self-sufficient internal life processes. God has created so many universes by now that nobody could count them all, and God doesn’t need to count or interact with these universes, so he doesn’t. We need to consume matter and energy, but God needs to do the opposite of that; God needs to produce and create matter and energy, or should I say, matter and energy are a byproduct of God’s internal super-reactions that help him ‘live’.
God, is not a “he” – it is not humane, it is a stable and infinite process of self-sufficient creation.
Not that I’m right. I just said all that for the hell of it.
=)