[Music] [Music] For centuries, there was no such thing as a black swan. It was a fact. All swans were white. In fact, it was so true that by Shakespeare's time, it became a common expression in Latin. Here it is. Rada avis in terrace negro simile lima signal. When a fact becomes so widely accepted that people repeat it in Latin, that's a sign of it not just being true but extra true. Then all of that changed in 1697 when Dutch sailors spotted a black swan off the coast of Australia. Suddenly what everyone w ...