 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 criterion for identity in “The Self and the Future,” pp. 46–63, so he presumably thinks that a person does survive changes of desires and character). Concerning Williams’s second condition, his view is that if we replace our characters and desires, “there is nothing left by which he can judge” whether future life is desirable (1093, p. 85). Yet it seems reasonable to take the view now that it would be good for me to develop and fulfil desires in the future—desires I now lack. Many of us would welcome the prospect of gradually transforming our interests and projects over time. The gradual, continuous transformation of our desires and projects does not end our lives, or existence. It is distinct from, and preferable to, annihilation. If we could live endlessly, the stages of our lives would display reduced connectedness, yet remain continuous, which is a property that is important in the kind of survival most of us prize. Even after drinking from the fountain of eternal youth, we would tend to focus on relatively short stretches of our indefinitely extensive lives, being animated by the specific projects and relationships we have then. However, sometimes we would turn our attention to long stretches of life, and then, prizing continuity, we might well phase in new and worthwhile undertakings that build upon, and do not wholly replace, the old. (For further discussion of the desirability of eternal life, see Overall 2003, Bortolotti 2009, Smuts 2011, Luper 2012b, Altshuler 2016, Buben 2016, Cholbi 2016, and Fischer 2019.)