Humans have individually weak survival instincts, which is why soldiers were running into machine gun fire on the beaches of Normandy (or why others ride motorc

Humans have individually weak survival instincts, which is why soldiers were running into machine gun fire on the beaches of Normandy (or why others ride motorcycles). Some of that is surely the denial of our own mortality. Humans excel at surviving as a group, which is a very different - sometimes contrasting - thing.