The idea that our ancestors routinely died young has no basis in scientific fact. Average lifespan has increased for the most part simply because of decreased infant mortality.
Hell, Socrates died in his 70's back in 400 BC and the cause of death was execution, not old age.
Hell, Socrates died in his 70's back in 400 BC and the cause of death was execution, not old age.
Everything I needed to know about life I learned on Dagobah.