The desire to have done something, in the absence of the desire to actually do it, is an interesting phenomenon. I find that in my case it most often applies to travel, which I hate, although I desire to have been to places I would need to travel to in order to have visited. We have to juggle the wants of self-at-t1-for-self-at-t1 with the wants of self-at-t2-for-self-at-t1. It's like procrastination, except that instead of forming an intention to do something later, one dissolves the intention to do it at all.