Read pages 126-140 of "Brief History of Time". I'm not talking about physics and as such you should trust Hawking's ideas more than mine. The problem here is that Hawking isn't talking about physics, either. He's bothered by the fact that the Big Bang points to God, at least to him. So he goes off to crazyville trying to get rid of the Big Bang. It's really kind of sad to watch, and it's not science.
As I said, and I quote, "I'm not going to let a belief or disbelief in a deity dictate my feelings about the subject." That makes me more of a scientist than Hawking who sadly allows his belief in the lack of a deity to cloud his thinking in the scientific realm.