One thing I'd have liked to ask if I hadn't missed the window of opportunity would be regarding his desire to go to Mars himself. I have often wondered about the psychological effects of being effectively stranded on a barren, lifeless planet potentially for the rest of your life. On Earth, we can "get away from it all" and go to the country, go camping near a nice stream, listen to birds sing, go for a swim in the ocean, sit in a nice garden and eat our lunch, and so forth. How would one cope with the loss of all of that, not to mention also having to deal with the long-term physiological effects of a change in gravity?