Sometimes I feel like Lex's questions are a little random, hit and miss. This time I felt like yep, these are questions that it takes significant insight to make.  He connected a lot if dots. I still think the answers Prof. Greene gave are wrong, in places. But that's based on my intuition not understanding of course. ( I'm a huge fan of Prof Greene.)  I think however, it's more likely that we will prove in the coming decades that questions about the meaning of life are unknowable from within this black box. Also, what about the chance that we prove that consciousness did not arise out of fundamental particles, and that our notion that it has is merely an illusion?