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Oligarchy exists in function of the balance between two opposing forces in a given group of sentient beings: the need for autonomy, and the need for comfort. In a scenario such as our world, where the number of resources is finite, and individuals' goals are occasionally mutually exclusive, pure autonomy would result in anarchy. Pure anarchy does not exist in nature, due to it quickly giving rise to the evolutionary premise known as "survival of the fittest", which eventually produces Oligarchy: beings powerful enough to restrict the autonomy of others for their own comfort.