The talk Lawrence Krauss delivered at INR5 is entitled “A Journey to the Beginning of Time: Turning Metaphysics into Physics.”
One commenter, David Ezzio, says,
Another truly fascinating talk by Lawrence Krauss. I’ll have to watch it many more times to wrap my head around some of the things that were said, but that’s the beauty of learning.
and tgifford says this video
should be required viewing for everyone!