The company that creates one global social graph will be very important going forward. It will be Facebook, with maybe 2-3 local social networks able to sustain competition long term.

I have this ratio that if you divide age of entrepreneur by market cap of company. For Facebook it's one. Every year of his life Zuckerberg has been making $1 billion for investors.

Facebook is a platform inside a platform.

Facebook now is mostly about people you know. In the future it could be about people you know less but are more important.

It is hard to think of practical applications of the black hole. Because practical applications are so remote, many people assume we should not be interested. But this quest to understand the world is what defines us as human beings.

Russia is one of the places where significant presence of social networks are driven by domestic players right now.

There is a significant momentum behind the social Internet. A wide range of public investors were very enthusiastic about that.