Why humans run the world

 In his Ted Talk lecture, Yuval Noah Harari explains how human beings differ from animals in their ability to coalesce and work together in large numbers. He explains how human beings are unique in that they use fictions in order to come together and agree on a principle which isn't real. Money, for example, is such a fiction, as are corporations and nations.

Similarly, human beings forms groups who identify with such fictions. Nations, races, political groups, religions...all abide by rules and beliefs established by the group. And groups vie against each other for power; each group using its own beliefs and values to compare itself to other groups, and accept or reject, or incorporate those beliefs or values into its own.