If like me, the concept of our mortality bothers you, be sure to check out Stayin’ Alive, an article on Ray Kurzweil, longevity and the singularity in the April 2008 issue of Wired. I doubt Kurzweil is right, but I sure hope he is! It’s not online yet, but you can find a summary at:
http://pimm.wordpress.com/category/medicine/