Someone with very high IQ like:
There is a list at : http://onemansblog.com/2007/11/08/the-massive-list-of-genius-people-with-the-highest-iq/
I suggest Christopher Michael Langan, as roland said. His "Cognitive-Theoretic Model of the Universe (CTMU)" ( download it at http://ctmu.org ) is very logical and conflicts in interesting ways with how Yudkowsky thinks of the universe at the most abstract level. Langan derives the need for an emergent unification of "syntax" (like the laws of physics) and "state" (like positions and times of objects) and that the universe must be a closure. I think he means the only possible states/syntaxes are very abstractly similar to quin...
Bloggingheads.tv can't exactly call up, say, the President of France and get him to do a diavlog, but they have some street cred with mid-rank celebrities and academics. With that in mind, how would you fill in this blank?
"I would really love to see a diavlog between Yudkowsky and ____________."