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Egalitarianism among foragers is concerned primarily with preventing a single individual or coalition from dominating (and thereby making life miserable for) the rest of the group. This leads foragers to be vigilant for early warning signs of people who position themselves above others. This includes dominating or bullying individuals (outside the household ot immediate family), bragging, seeking authority too eagerly, ganging up with other members of the group, and otherwise attempting to control others' behavior. Foragers would readily support the motto fo the early American general Christopher Gadsden: "Don't tread on me."
Many of the norms that were common among our forager ancestors are by now deeply embedded in human nature. But these aren't our only norms. Most societies also teach their children norms specific to their society. This ability of societies to adopt different norms is part of what has let humans spread across the Earth, by adopting norms better suited to each local environment.
This "cultural flexibility" also enabled our ancestors to implement the huge behavior changes required to turn hunters and gatherers into farmers and herders, roughly 10,000 years ago. Farmers have norms supporting marriage, war, and property, as well as rough treatment of animals, lower classes, and slaves. To help enforce these new norms, farmers also had stronger norms of social conformity, as well as stronger religions with moralizing gods.
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