Ithaca, new york, and i am the author of cosmos possible worlds. Truly honored to be participating in an event nor library of congress. In the very first cosmos exactly 40 years ago, carl sagan and stevenned soar and i celebrated the Great Library of alexandra, and the library of congress means so very much to me because of the democratic idea of the worlds knowledge, belonging to all of us, and so its my great honor to be here, and here to talk but possible worlds, which is the book ive written but also the Television Series that i have the pleasure of producing, writing, and directing, with my collaborator, brannon brag y. Why a third cass mose does mose after 40 years . The first cosmos was an effort to give the broadest possible public a global public, its coordinates in space and in time. It was carl sagans dream, one i completely share, that how we find our way in the cosmos, the great story of the 40,000 generations of human beings, who in one way or another added to our current