I see three forces militating in favor of growing inequality: increasing measurement of worker value added, automation through smart software, and globalization.

Look at electricity in human history - it took a few decades for electricity to really revolutionize the American economy. And the Internet will be the same. At some point in the future, we will arrive at a new era of low-hanging fruit.

When you look at the actual data on technological innovation, one thing you see is that what I call the 'low-hanging fruit' has been exhausted. So radio, flush toilets, electricity, and automobiles - a lot of very basic inventions - have spread to almost all households.

Most restaurants in most cities, including Washington, are at a sort of mid-level. They're somewhat trendy, or they have some sort of gimmick, or they're somewhat expensive. And they make a lot of money off drinks. I tell people don't go to most of them, unless your goal is just to socialize.

Social media has given us the world at our fingertips every morning. And we watch it change, live. In the morning, in the old days, we'd read the 'Post,' and that was what we had.

My high-school friends and I felt part of a community of smart, forward-looking space and technology freaks.

I think the world's a little smaller these days. With the Internet and the availability of people, the pool of English speaking actors - not just American actors, but Brits, Australians, New Zealanders, Irish. We're all up for grabs.

I will continue my activities related to education in one way or another. I certainly would have at the top my agenda, with respect to education, the need to do much better with modern educational technology.