Evolutionary nature is cruel and capricious. The only thing that matters in evolution is reproduction. There are lots of complicated ways for a species to achieve that, including various instincts and even altruisms. But an organism that achieves too great a success will overpopulate and die off. Highly successful strategies that worked for millennia can be destroyed in an instant of bad luck as happened to the dinosaurs .
Until recently, although some humans may have dreamed of “threescore and ten”, most adults died by forty, and most children did not become adults. Old women past menopause would have lost all evolutionary reason to exist were it not for the “grandmother theory” that they promoted culture and advantage to their genetically connected tribe .
These days the pampered masses have lost all sense of gratitude for the scientific miracles surrounding them. Most children do not die before becoming adults. Most adults live past forty. Many can extend prime years to eighty and beyond .
Instead it is a litany of how awful things have become. More children with problems (instead of being dead!), more adults with pain and incapacity (ditto!). Everyone thinks they should be a vibrant perfect thirty-five years old forever .
Nature always disagreed, and still does .
HuntingtonHarborThoughts 