Ah, but you are willing to accept the possibility that we are something more than a collection of biological processes. He's absolutely convinced that he knows the answer, and that deliberate blinkering of worldview is what makes me pity fundamentalists - whether of the theistic or atheistic varieties. When you're that locked into a single pattern of thought, you can't (IMHO) really appreciate the wonders of the universe - whether you believe that there is anything more than the physical universe or not.