Is M theory Einstein’s elusive "theory of everything"? In this program, visionary physicists Neil Turok, of Cambridge University; Burt Ovrut, of the University of Pennsylvania; Paul Steinhardt, of Princeton University; and others theorize on a revolutionary cosmology that explains what happened at the Big Bang—and in the process posit a continuum in which our universe is but one bubble among an infinite number. The development of string theory, the contributions of string and supergravity theories to M theory, the relative weakness of gravity, and parallel universe-creating collisions between membranes in the eleventh dimension are discussed. A BBCW Production. (50 minutes)