Stanford professor Larry Lessig foresaw the response a threatened content industry would have to digital technology -- and he came to the aid of the citizenry. A foremost authorities on copyright issues, Lessig has a vision for reconciling creative freedom with marketplace competition. As corporate interests have sought to rein in the forces of Napster and YouTube, Lessig has fought back with argument -- take his recent appearance before the U.S. Supreme Court, fighting the extension of copyright protection from 50 to 70 years -- and with solutions: He chairs Creative Commons, a nuanced, free licensing scheme for individual creators. And in this video about the shortcoming of a pre-digital IP laws, he gets his audience to their feet, with an elegant "three stories and an argument" presentation.