We do, actually, if you can
stomach it.
No, that's how atheists deceive themselves. They
don't live forever, but some of their thoughts or other works just might exist for a very long time if they are of use to the living after they've stopped being of any use to you. It is a little like the idea of some Darwinists of eternal life through passing on your
genes! Well, they may live a lot longer than you, but you'll still be dead.
"I don't want to achieve immortality through my work, I want to achieve it by not dying." (some really
old dude)
In a way it is even more deluded than the usual eternal-life delusions. It is a little like the science-fiction fans who look down on fantasy fans because they consider their own fantasies
less unreal. At least most ordinary woos know that they are
believers. Anti-agers and transhumanists, however, seem to be unable to live with the
doubt that is an integral part of every belief. Their
need to believe in the
reality of eternal life is so big that they spend their lives and their fortunes paying people to deceive them.
Now
that is one weird way of wasting the only life you have!
I can recommend Brian Alexander's hilarious book about this phenomenon,
Rapture: A Raucous Tour Of Cloning, Transhumanism, And And The New Era Of Immortality.
As for the OP: Death is something we have to come to terms with. Humans tend to like to
be, and we don't like to be out of control, and this is something that in principle is completely out of our control, but to some extent we are able to control the things that tend to shorten our lifespans (
poverty,
war, etc.) and make life miserable (
poverty,
war, etc.), and they are the things that are worth worrying about.
However, I worry more about your attitude to
knowledge than about your attitude to
death. I'm in my fifites, and like the rest of my peers in this thread, I think, I find it hard to accept that I should stop being interested in learning new stuff and enjoy life
instead. The two things aren't mutually exclusive, you know. On the contrary, I think.
I also don't know many 50-year-olds with enough savings to live happily ever after without working ...