who said I am in "constant" fear of death?
but I am old with medical complications and could without warning suddenly die any time soon of heart attack or stroke and I am scared of just that
I can't fathom how else you expected the response above to be interpreted.
Do you equate the words "I am scared of just that" with "I am scared of just that all the time as in every minute of my waking life"? As I just said, I don't think about it all the time (else that would be just abnormal) but, just like all normal people, I think of it some of the time.
"And what's wrong with wanting a much longer life span?"
The quest for the fountain of youth is obviously nothing new. It just seems selfish and very short sighted in my opinion.
Then your opinion can sometimes be wrong depending on context. Why cannot one (like myself) wish it for everybody as opposed to just themselves? Is that also selfish?
Firstly, evolution is going to come to a grinding halt by extending our lifespans 12 fold initially.
Why should we care whether an arbitrary natural process ends that we no longer need?
We will no longer need the brutality of Darwinian natural selection along with all the pain death and fear that brings.
Will it ever end? How about new ideas?
why would people stop having new ideas just because they live longer? Wouldn't people who live longer logically have more time to come up with yet more new ideas? A dead person never comes up with new ideas so death is a potentially big show stopper to that.
I am old and I am STILL coming up with new ideas and will continue to want to do so to my dying breath and see no reason or motive to stop doing so even if I live forever. I have no idea why living for ever (or just longer) would put a complete stop to new ideas or would necessarily significantly reduce the instances of new ideas.