Uncle Al,
At first I respected you for being an atheist, this proved that you could think things through and come to logical conclusions (unless you were raised as one). Then I read this; "There are no space aliens, ghosts, supernatural phenomena, or miracles." This means you are what I call a 'total sceptic' and immediately dismiss any idea that fits into a certain category that you have created, without actually thinking about the idea. (Please correct me if I am wrong)

I disagree only with the space alien thing. It seems very probable, almost certain that DNA molecules could be formed elsewhere in the universe than on earth.