I'm a very private person that prefers a low profile.

The only regrets I have are rather prosaic - like I wish I went for a swim in the Pacific.

I think it's going to be great if people can buy a ticket to fly up and see black sky and the stars. I'd like to do it myself-but probably after it has flown a serious number of times first!

For the most part, the best opportunities now lie where your competitors have yet to establish themselves, not where they're already entrenched. Microsoft is struggling to adapt to that new reality.

The possible is constantly being redefined, and I care deeply about helping humanity move forward.

In my own work, I've tried to anticipate what's coming over the horizon, to hasten its arrival, and to apply it to people's lives in a meaningful way.

In global warming, I think everyone is scratching their heads - are there technological things that can be brought to bear that can make a difference?