[pak]

It was an interesting read, and thanks for coming here to talk about it! There were a few questions that came to mind...

- In what ways does Facebook prioritize social science over technology? By all accounts it's just as engineer-driven as Google.

- Also, you seem to have pivoted away from research upon your arrival. Does Google not allow researchers to transition into product development? Would that have been a desirable path for you?

- Finally, did you leave Google before or after you knew about the Google+ launch, and is there any part of you that wishes that you retained some input into the product? It is quite evident that it was built centrally around the results of your research, and I wonder what it must feel like to be working for a competitor when the product of your vision finally goes live and reaches 10 million users.