Companies rarely die from moving too fast, and they frequently die from moving too slowly.

When we think about online learning, it's such 'early days.' Bill Gates is a wildly smart insightful guy. Yet, even a guy as smart and insightful as that, 30 years ago can say things like,'Who's every going to need more than 640K of memory?'

On the Internet you get continuous innovation, so every year the streams are a little better.

Interactivity is a big part of video games, which have been a big part of entertainment for 20 years. That's what we think of as a 'lean-forward' type of entertainment. It's much more intense. But TV is more of a 'lean-back' entertainment - so the big improvement there is on-demand, because it conforms to your schedule.

In the U.S., HBO is a very aggressive service.

Something will eventually replace the Internet. But it's hard to know what and when it will happen.

Technological revolutions are very hard to predict. My favourite example is someone in 1850 taking care of horses as a farrier. They would have said, "Look, horses have been part of human existence for 5,000 years. We are horse people. It's permanent." But all of a sudden, the internal combustion engine comes along and, with it, oil fields and automobiles, which basically replace the horse completely. So we often have these long periods of stability and then a sudden inflection point.