Dan Dennett: Cute, sexy, sweet, funny. URL Why are babies cute? Why is cake sweet? Philosopher Dan Dennett has answers you wouldn't expect, as he shares evolution's counterintuitive reasoning on cute, sweet and sexy things (plus a new theory from Matthew Hurley on why jokes are funny).
Charlie Chaplin: Let Us Free the World. URL Some call it the greatest speech ever made. This remix puts Charlie Chaplin's climactic address from "The Great Dictator" (1940) into present-day context, showing how the spirit of liberty, brotherhood, and equality that defeated fascism seven decades ago must be urgently reclaimed.
Derek Sivers: Keep your goals to yourself. URL After hitting on a brilliant new life plan, our first instinct is to tell someone, but Derek Sivers says it's better to keep goals secret. He presents research stretching as far back as the 1920s to show why people who talk about their ambitions may be less likely to achieve them.