Although cultural evolution, and the civilisation that it created, brought differentiation, individualisation, increasing wealth, and great expansion to mankind, its gradual advent has been far from smooth. We have not shed our heritage from the face-to-face troop, nor have these instincts either ‘adjusted’ fully to our relatively new extended order or been rendered harmless by it. Yet the lasting benefits of some instincts should not be overlooked, including the particular endowment that enabled some other instinctual modes to be at least partly displaced.
