I'd ask him to write more science books! Okay I assume he'll keep doing that so I'd ask him what his thoughts are about the future of space research and what he thinks we'll find out there in the universe and what he hopes we will find.
Uh...I think I am talking about Tim Ferris the science writer and other people are talking about Tim Ferriss or some other Tim Ferris. I'm confused...I suspect you may have spelled his name Ferris when you meant Ferriss... ??