Best 15 minutes of S&Z I have ever heard. Only would quarrel with the seeming contradiction between Dasein's "worlding" of the world and the world's "worlding" of Dasein in the remarks. My quarrel is that I don't understand that fully and the subsitution of one description for the other confuses me. Otherwise, it is a valuable presentation for anyone familiar with Heidegger's S&Z vocabulary.