Ignoring the question of whether these individuals are afraid to die is there actually anything wrong with that? Identifying your fears and then working to com

Ignoring the question of whether these individuals are afraid to die is there actually anything wrong with that? Identifying your fears and then working to combat and overcome them is commendable in my opinion. I suppose you could argue that if you had 1000 years ahead of you the drive to do great things may be weakened. Why start today when the tools available in the next century would make everything so much quicker. Similarly, I know that, at least in the biological sciences, there is a frequent joke that for an area where a certain theory has held true for a number of years but where new technologies are revealing errors the retirement/death of the incumbent professors is often required before better theories get the consideration they deserve. Knowledge comes at a price and sometimes a fresh start is needed. These arguments are incredibly weak though.