he said he has steve ballmer check it and cross-check it.hat advice do you have about the way you commit your time and build your schedule? >> i have somebody who runs my life who does my schedule, but i'm the same way. i don't commit so far this advance simply because i still think the best is yet to come, you know? i'm still excited about all the opportunities that are in front of me. and so i don't want to preclude myself from something. and like a lot of people here, you know, we get asked to speak every minute of every day. i just, you know, like i said is, i'm such a strong believer in the american dream, i'm such a strong believer that today is the youngest you'll ever be, you have to live like it, and i'm such a strong believer that the best is yet to come for me. and if that's the case -- and my children. if that's the case, then i'm not going to lock anything in. my schedule's tbd and hopefully will be for a long time. [laughter] >> we have 30 seconds. if you thought the last question was tough, many of our scholars asked what is t