I'm quite bullish. We're coming up on year 15 of a flat stock market. Historically that's a pretty good sign. So I'm not a hedge-fund manager but if I was I think I'd be feeling pretty good.

Every kid coming out of Harvard, every kid coming out of school now thinks he can be the next Mark Zuckerberg, and with these new technologies like cloud computing, he actually has a shot.

Companies in every industry need to assume that a software revolution is coming.

There will be certain points of time when everything collides together and reaches critical mass around a new concept or a new thing that ends up being hugely relevant to a high percentage of people or businesses. But it's really really hard to predict those. I don't believe anyone can.

In Russia, they do not generally block the Internet and directly censor websites.

People go on Snapchat - I don't understand it. It's the first app I felt, 'Oh no, I'm out of touch with burgeoning technology. I'm not 16!'

It always seemed to me ironic that the McCain campaign kept referring sneeringly to Obama's meager resume - 'a mere community organizer!' - before he entered electoral politics. It was Obama's experience as a community organizer that proved such a killer app when he applied that skill to the Internet.

I'm more frightened than interested by artificial intelligence - in fact, perhaps fright and interest are not far away from one another. Things can become real in your mind, you can be tricked, and you believe things you wouldn't ordinarily. A world run by automatons doesn't seem completely unrealistic any more. It's a bit chilling.