TABLE OF CONTENTS INTRODUCTION   7 CHAPTER I: SCIENCE 11 BIOLOGICAL IMMORTALITY 17 Michael R. Rose, Ph.D. THE WAR ON AGING   29 Aubrey de Grey, Ph.D. THE DREAM OF ELIXIR VITAE   47 João Pedro de Magalhães, Ph.D. THERAPEUTIC CLONING 63 Michael D. West, Ph.D. NANOMEDICINE   77 Robert A. Freitas Jr., J.D. HUMAN BODY VERSION 2.0   93 Raymond Kurzweil, Ph.D. PROGRESS TOWARD CYBERIMMORTALITY 107 William Sims Bainbridge, Ph.D. WILL ROBOTS INHERIT THE EARTH? 123 Marvin L. Minsky, Ph.D. MEDICAL TIME TRAVEL 135 Brian Wowk, Ph.D.