Cultural Evolution

Cultural Evolution argues that people's values and behavior are shaped by the degree to which survival is secure; it was precarious for most of history, which encouraged heavy emphasis on group solidarity, rejection of outsiders, and obedience to strong leaders. For under extreme scarcity, xenophobia is realistic: if there is just enough land to support one tribe and another tribe tries to claim it, survival may literally be a choice between Us and Them. Conversely, high levels of existenti...