Reddit thread on Immortality
Eventually, it will happen. Someone will discover a way to allow cells to divide forever and then every other cure will happen once key scientists can live forever.
So then, the question becomes: If you could live forever, would you?
If you had no deadlines (har har), would you be motivated to do anything?
Maybe as a race, we would all engineer ourselves to be pretty, have pointy ears, and dedicate our entire time to growing better trees and shooting bows.