Facebook didn't know how successful Zynga would be.

I think top scientists need to be compensated at a different scale in society. Somebody with experience will tell you that true scientists are not motivated by money - they are motivated by the quest itself. That is true. But I think an additional recognition will not hurt.

Social is a better way to interact with digital world. It is better than search. Implications for... everything. Total change.

Facebook can be an accumulation of different intelligences. Ask a question, translated into many languages and somebody, somewhere in the world, will have an answer.

I must analyze, from what I do now, what will be the impact two or three or five years in the future. What is the statement I want to make?

The hardware and the software used in the Breakthrough project will be compatible with other telescopes around the world, so they too can search for intelligent life.

It’s not about revenues: the fundamental economics in digital business is scale and margins. The top line has become the bottom line.