The computer in your cell phone today is a million times cheaper and a thousand times more powerful and about a hundred thousand time smaller than th… - Stephen Hawking

do we really have reason to believe that an objective reality exists?

Time and space are finite in extent, but they don't have any boundary or edge. They would be like the surface of the earth, but with two more dimensions.

What I have done is to show that it is possible for the way the universe began to be determined by the laws of science. In that case, it would not be necessary to appeal to God to decide how the universe began. This doesn't prove that there is no God, only that God is not necessary.