In this series of posts about science and spirituality, I've left God for last, even though God has become the hottest topic as we struggle toward the future. The arguments against belief in God have been stridently raised by a small band of scientific atheists -- their avowed leader, Richard Dawkins, has become a household name. In our recent book, "War of the Worldviews," my co-author, Caltech physicist Leonard Mlodinow, doesn't pursue the atheist line. His worldview is scientific, but Leonard holds a view that is much more defensible than atheism:

"While science often casts doubt on spiritual beliefs and doctrines insofar as they make representations about the physical world, science does not -- and cannot -- conclude that God is an illusion."