Lawrence Krauss dialogued (if that term is appropriate) with William Lane Craig in Australia this September (2013). Krauss produced an edited email from Alexander Vilenkin which Krauss claimed shows that the BGV theorem does not demonstrate that the universe (or multiverse) has an absolute beginning. The unabridged letter can be seen at Craig's website under Q&A #336 http://www.reasonablefaith.org/honesty-transparency-full-disclosure-and-bgv-theorem. Vilenkin had in 2006 claimed that the theorem proves there must be an absolute origin to the universe/multiverse. Now he says that the possibility of a quantum gravity regime where classical concepts of time and causation are no longer applicable would make it possible that this claim is no longer applicable. At least that is my understanding of his statement. Craig has his take on Vilenkin's statement (see the above link) but I wonder if anyone knowledgable of this area of physics might be able to comment as well. I have some very specific questions and I could give exact quotations.

For anyone interested in seeing the three dialogues, they can be found at http://vimeo.com/73280102,

http://www.youtube.com/watch?v=V82uGzgoajI&list=PLJO4GoYCMBwUqhXG759Ag78x7sJ2AgNhB&index=2, and

http://vimeo.com/73370349.

Krauss sprang the private email on Craig during the second dialogue and they discussed it in the third.

Would anyone be interested in discussing this who understands how quantum gravity might affect the BGV theorem?

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