It is my highest wish, aside from happiness. Happiness is my goal in life; everything I do works toward that goal in some way. I consider myself happy at the moment, so I guess right now I'd say I'm fulfilled. Past that, my goal is to continue to be happy for as long as possible. Immortality makes this possible.
People say things like "oh, I wouldn't want to watch my friends die" or "I would be bored." I think I've explained this in another thread, but I don't think that could be farther from the truth. While the death of our friends and family is sad, it's still something we all will have to encounter at some point. But you don't dwell on it forever; you move on with your life and keep your memories of that person close to you. You make new friends (and potentially new family) and enjoy things anew.
Boredom? I cannot conceive of myself ever becoming bored. There are probably more books than people on this planet. To play every single game would probably take me decades or even centuries. And to learn all the things I want to learn would certainly take centuries. And that's taking only a static slice of time! New things are always happening; there are always new people to meet and new things to learn.
But twocows, you say, what about after man's time comes to an end? Well, even taking a conservative estimate and saying that it'll happen soon (and the argument could easily be made that man will be eternal, should we develop the technology to explore the universe and potentially outside the universe someday), man is something that comes from the world. Humans are made of a finite set of components interacting in a finite set of ways with each other. In other words, it is possible to create intelligence artificially. With unlimited time, I would someday invent some sort of intelligence, and then my happiness would begin anew.
There is no higher wish for me other than eternal happiness, and immortality is one path to that end. Of course, like many paths to eternal happiness, it is entirely impossible.
