This is a TED talk given by VS Ramachandran, where he talks about the importance of “mirror neurons.” Mirror neurons are neurons in the brain that allow

humans to copy and imitate other humans. This has had a tremendous effect on human civilization as it has sped up the development of human society. For example, rather than waiting on evolution and natural selection to teach an organism how to coexist with its environment, a human child need only look at the actions of his/her parents to learn how to live within the environment.