What was the craziest thing to happen inside Facebook in the last 15 months?

Funny you should ask, because I just wrote 12,000 words with Fred Vogelstein about all the crazy things that happened at Facebook in the last year and a half. The craziest was the fight with Instagram. A combination of jealousy, resentment, and anger led to a major breakup and the departure of the founders of Instagram in September.

Did Jack Dorsey help or hurt Twitter at TED this week?

I think he hurt it. He gave one of his deeply thoughtful, introspective interviews. We're getting kind of used to them but at this point I think the public reaction was, "OK, enough about feeling deeply about this. Let's change the platform!"

Can 3D point clouds help rebuild Notre Dame?

Yes. One of the good things inside this horrible tragedy is there's been a lot of really sophisticated imagery of what was burned down and now maybe it will be easier to rebuild.

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