Failure can teach you something, and as long as you're moving very, very quickly, you're going to start piling up the wins. Speed gives you the luxury to be able to fail.

If you don't optimize for the consumer on the Internet, you're dead.

I remember my father taking us to meeting with lawyers, interviews with immigration officers, doing everything he could to get us that treasured Green Card - and the happiness, the sense of relief, when he finally did - we knew that we were welcome now, and we would be welcome tomorrow.

I started in investment banking at Allen & Company in 1991. It was the go-go days of media mergers, and we were incredibly busy with one deal after another. Unlike typical investment banking groups, even in the midst of merger mania, we didn't have a formal face-time culture - and I felt empowered by that.

As the perception of the United States as a welcoming place for all changes among travelers globally, the country's tourism market, which is a huge revenue generator for the economy, could get hurt.