I'm skeptical. Humans adapt to circumstance and use different tools, but I'd need some convincing to believe our essential nature has _ever_ changed since we fi

I'm skeptical. Humans adapt to circumstance and use different tools, but I'd need some convincing to believe our essential nature has _ever_ changed since we first climbed down out of the trees. Tribalism, selfishness, violence, lust, love, superstition and an occasional rare burst of insight and reason.... all still plainly manifest and driving our social world. Look at Nigeria. Look at the local penitentiary. Look at the Mideast. Look at the office politics in your workplace. Same motives, different manifestations. Nothing really changes as long as the condition in which we find ourselves remains the same. And that condition is scarcity and fear of death and pain and jealousy and constant competition from competing tribes. A same organism in the same conditions is likely to act in the same ways. And we do, and we will, at least until we become something else or until these circumstances change for everybody (which dream is very very far away). On the other hand, maybe we are gaining the tools to change our nature through changes in biology/physiology. This is hardly metaphysical or philosophical or psychological though.