People in my family lived to be a hundred without much problem with the exceptions of those men killed in accidents like logging trucks and those shot by jealous husbands or posses.
When my mother was born there were no cars, televisions, airplanes, or radios. She saw it all come about and knew/dated some of the men who helped bring them into existence. She was a reader, as I am. She once said the biggest problem with being a reader is that by the time you've read all the great books of the world -- Someone has written more of them.
In my life time I've seen rocket ships, computers, the world wide web, the burgeoning sciences of nanotechnology, quantum physics, cloning, DNA manipulation, etc etc etc.
As long as I can read I will enjoy life.
I want to see what will happen next. And I'm sure when that does happen there will be something else that I will want to see next.
Dying doesn't scare me, it makes me sad: It is like going to sleep in the middle of a fascinating movie and you missed the ending.
I want to see it all.