Quote:Up to approximately 50,000 years ago it was only evolution at play
I fundamentally disagree. We have evidence from Homo Erectus skeletons which indicate that individuals with serious fractures survived for the bones to heal. This is indicative of some social unit which tended to the injured man and enabled him to survive.
Human culture - be it HE, HNS or HSS - interfered with evolution by natural selection. Lions live in structured prides, too. Yet when one is injured in a hunt it lives or dies on its own.