In the past, people have looked at photos as a record of memory. The focus has been on the past tense. With Instagram, the focus is on the present tense.

Videos are a very difficult medium to be good at and also a difficult medium to consume quickly.

Calling 'Instagram' a photo-sharing app is like calling a newspaper a letter-sharing book, or a Mozart grand era symphony a series of notes. 'Instagram' is less about the medium and more about the network.

Our goal is really to make sure that 'Instagram', whether you're a celebrity or not, is a safe place and that the content that gets posted is something that's appropriate for teens and also for adults.

I think with the proliferation of mobile devices and then, eventually, the Internet of Things, we literally have supercomputers in our pockets and supercomputers that will hang on telephone poles and in light bulbs.

As we prepare to enter the cryptoconomy, undoubtedly it looks fuzzy, foggy, risky, buggy, uncertain and unproven, but so did the Internet in 1995.

Most of my friends are in the industry - photographers, models, stylists, and social media kids.

At its core, I don't view Facebook as a social network. I think it could become the driver's license of the Internet. And beyond that, it can become the pipes and the plumbing upon what most of the Internet is built. I think it's very well positioned.