What sort of afterlife does Scheffler consider in his famous Tanner Lectures? What doomsday scenario does he invent and what is it supposed to show? Do you agree with Scheffler that things other than our own experiences can matter to us? Why or why not? What is the relevant difference between Scheffler’s own doomsday scenario and the doomsday scenario presented in The Children of Men? Carefully explain your reasons and be sure to use examples.