Why would you want to end death? Or you mean ageing so your body never deteriorates from a certain point? Your brain's capacity to handle memory would still b

Why would you want to end death? Or you mean ageing so your body never deteriorates from a certain point? Your brain's capacity to handle memory would still be a blocker for any meaningful extended survival. Any decent scifi novel would name many of the very simple problems it would cause at an individual and societal level, not to speak of every other biological ramification of the body.