Williams’s claim that immortality cannot be made desirable remains controversial. It is not obvious that eternal life is undesirable if it involves changing our categorical desires and characters (insofar as our characters are defined by the desires). Nor is it obvious that such changes must violate Williams’s two conditions for the desirability of continued life. Williams seems to think that the individual who is changed in this way will not clearly be the same person as before, but he stops short of saying that it clearly will not be the same person (indeed, he defends a bodily continuity cr...