The question “Isn’t Everybody Selfish?” is often asked cynically by people who think selfishness is a bad thing and that it’s impossible to avoid. Sometimes it is said by economists who think that selfishness helps to explain human action, and sometimes the question is posed skeptically to people, e.g., Ayn Rand, who say that everyone ought to be selfish. If everyone is selfish all the time, what point is there in saying that people ought to be? In this talk, Salmieri discusses what selfishness really means, what it is to act selfishly and how often that really happens.