Well, clearly you are excited to go. Which of his many fields are you most interested in?
Find something that speaks to you personally. Or just ask something about his new book.
For me, i would like his take on the future of human interaction. Will text and the typed word become more prevalent in society. Is human speech going to be rendered optional. Will society become more introverted from a public standpoint. Cause it sure looks like its heading that way.
Well I don't want to talk to him about his inventions, I don't think - while I think those were really interesting.
And I don't want to ask him any question I can just google, so 'factual statements' are boring.
I think I might ask him something about how feels society will transition into the rapidly expanding scientific functionality we are achieving in the next decade, but something -more- specific than that. He'll probably talk about that at one point.
I guess I should have MULTIPLE questions prepared, in case someone asks him something I wanted to ask him before me, or in case he mentions it during his presentation. Mind if I still your question (or the spirit of it) as one of the possible questions I can ask?