Starvation does not occur because of a world food shortage. If everyone ate a vegetarian, or better still, a vegan diet there would be enough food for everyone. The only sane way forward is to grow food for humans rather than to feed it to farmed animals.

It is not uncommon to suppose that the free exchange of property in markets and capitalism are one and the same. They are not. While capitalism operates through the free market, free markets don't require capitalism.

We are learning that the earth functions like an invisible organism. We are the various cells of one living being. Those who work to save the earth are its antibodies.

In this country, the health concerns and the environmental concerns are as deep as in Europe. All the surveys show that. But here, we didn't have the cultural dimension. This is a fast-food culture.

How do we address network neutrality when the whole world is connected? How do we ensure governments don't purloin this for political purposes? It's already happening. Look at Russia on the American election. How do we protect data security when everyone's connected? Look what happened with the ransomware. How do we deal with cybercrime and cyberterrorism and the disruptions of the system? And we're seeing this every week now.

We were making the first step out of the age of chemistry and physics, and into the age of biology.

I think capitalism will not disappear, but it's going to increasingly not be the exclusive arbiter of economic life. It's going to have to find value in interacting with the sharing economy on many levels. And this hybrid system that's already emerging among millennials is going to be a mature system where, by midcentury, part of the day will be in the capitalist market, part of the day in the sharing economy, depending on your marginal costs.