Previous2001: A Spacetime Odyssey
http://pauli.physics.lsa.umich.edu/w/arch/som/sto2001/Steinhardt/real/A lecture on colliding branes and the origin of the hot big bang by Paul Steinhardt (Princeton University). Comprises RealPlayer stream and slides; hosted by the University of Michigan.
Submitted in section: Astronomy: Cosmology: Earliest Universe: String Cosmology: 2001: A Spacetime Odyssey