Much of the pushback against science is related to a distrust of the establishment and of multinational corporations and their profit motive. It's easy to spread fear; as humans we're very tuned and sensitive to it.

To me the question is, why are we denying them the obvious rights they should have? They are flesh and blood, they feel pain as we do, they experience joy, they have their own behaviours and their own languages among themselves that they understand and we don't. They have maternal instincts and look after each other as we do… it's not an intellectual thing when a mother protects her child; it's an instinctive behaviour.

With Foursquare, our original app was a good idea but it wasn't a hundred million users good idea. The data behind the app, and what we do with the data? That's our good idea. That's our hundred million dollars in revenue idea.

There's no question that Facebook could have done much, much more in the last few years to address the problem. I don't think we can inoculate people against crazy ideas, they will always have takers- but we can certainly improve the way that platforms like Facebook operate because they don't have any incentive at the moment to restrict the spread of harmful content.

Robustness is being in a good place and having a plan, resilience is being able to implement that plan and stay in a good place.