As we get robots becoming more sophisticated, I think we should worry sooner rather than later on how much they could take over, but I think it'll mostly be a positive thing. In terms of deadlines it won't be any worse than nuclear weapons.

I realized about 10 years ago that my wealth has to go back to society. A fortune, the size of which is hard to imagine, is best not passed on to one's children. It's not constructive for them.

The tablet is not mainstream. Reading off the screen is not mainstream.

People are building the software and so having the pieces be such that a single person understands all the tradeoffs and everything that's going on in a piece is extremely valuable. It avoids getting into an experimental mode where you're just trying things out. That never works.

Being flooded with information doesn't mean we have the right information or that we're in touch with the right people.

The most important 'speed' issue is often not technical but cultural. It's convincing everyone that the company's survival depends on everyone moving as fast as possible.

Skype actually does get a fair bit of revenue.