from an evolutionary perspective the current human lifespan seems almost perfect >long enough for grandparents to help with kids and pass on valuable knowledge

from an evolutionary perspective the current human lifespan seems almost perfect >long enough for grandparents to help with kids and pass on valuable knowledge >short enough that new generations are able to adapt as needed to changing environments and throw out out of date information or cultural "technology" that is no longer relevant increasing human lifespan significantly seems like a nightmare, especially if only the richest have access. The saying "science advances one death at a time" and just the thought of political leaders being able to entrench themselves over longer times spans is awful. Seems like it would most likely lead to complete stagnation