So, for me, working with larger companies has often been very satisfying, precisely because of the ability of bringing critical mass to bear on a given effort.

Henry Kissinger once told me he was very concerned about the Internet's impact on people's ability to absorb information in a concentrated way, because we've become accustomed to looking up something, getting a snippet and being satisfied with that - as opposed to reading through and considering a weighty tome that goes into great depth.

Although I've had several major career changes, I was extremely hesitant about making some of them.

There is a project that's underway called the interplanetary Internet. It's in operation between Earth and Mars. It's operating on the International Space Station. It's part of the spacecraft that's in orbit around the Sun that's rendezvoused with two planets.

I was standing on the shoulders of other science fiction writers like William Gibson, who had written 'Neuromancer' on a typewriter before home computers even really existed, and Neal Stephenson who wrote 'Snow Crash' in the early '90s and imagined an online virtual world before the birth of the modern Internet.

Most efforts to approximate normal human behavior in software tend to be creepy or annoying.

Assume everything you put on the Internet can and will be seen not only by the person you're talking about, but your future romantic partners and bosses, too.

If high-quality content can be effectively delivered via technology, teachers can devote more time to creating innovative experiences, leading Socratic dialogs, or coaching students one-on-one in more targeted and focused interventions.