Levels of Reality

Are there levels of reality, with each level emerging from the other in a way that provides a truly new aspect of reality?  The concept of emergence has been seen as an alternative to mere reducibility in discussion of the relation of the physical world to the biological world, consciousness, the social world, and God.  Ken and John probe the nature of reality with Tim O’Connor, Professor of Philosophy at Indiana University and author of Theism and Ultimate Explanation.