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 can be an accumulation of different intelligences.

Facebook didn't know how successful Zynga would be.

Facebook is at the forefront. It's the company that can fundamentally change the way information is being exchanged and processed. It can be the basis for artificial intelligence to develop over time.

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.