This is a much more specific question than my previous version.
In Williams and the Desirability of Body-Bound Immortality Revisited, Gorman says,
In one sense it seems there are an infinite number of paths each of us could take to move from project to project, pursuing categorical desires and acquiring new categorical desires. At any given time I am, it seems, perfectly free to take up learning Japanese, or playing tennis, or oil painting. Certain paths, though, naturally lead to taking interests in certain other pursuits. These pursuits only fend off boredom and make my life meaningful if I am able to take an interest in them. To be able to take an interest in a pursuit seems to require more than just being free to do it. Given what I have already pursued, at any given time there may be a finite and even small number of pursuits I could take an interest in, and this concern is ever more vivid when we imagine what one can take an interest in given hundreds or thousands of years of already pursuing interests. The worry is that certain paths will lead to a state in which I am not able to take an interest in any of the pursuits that present themselves to me as possibilities.
I'm not sure I understand this line of reasoning. Could someone shed some light on this for me?
First, I am not sure if his view of what interests us is too specific. Personally, I find it difficult to think of a field in which, if I spent adequate time in, I would not be interested in. From what I have experienced, interest develops from doing something, not the other way around. In an indefinite life, with infinite opportunities to pursue any given activity, it seems that one could become interested in anything. Indeed, almost every field has some who is truly interested in it. Why would we be unable to see it from their perspective, and develop a similar interest?
Second, in an indefinite life, why can we not develop our interests? Certainly, my interests have changed since I was five years old, yet I retained my identity. Why can the same not happen in an indefinite life, especially given that I have infinite time to become interested in different things?
Third, according to Williams, we lose interests we previously had in an indefinite life. Would this not provide fertile ground for developing new interests, given that we are actively searching for new and interesting activities?