NFTs allow game economies to be open. Instead of everything existing in – say – Fortnite's ecosystem, NFTs allow interoperability between games. You could take a sword from one game and move it to another.

The discipline I worked in was called SETI- The Search for Extraterrestrial Intelligence. Of course, that latter word is a misnomer. We don't know how to define intelligence or detect it at a distance. What we have done is to use technology as a proxy for intelligence- and therefore we have been looking for evidence of someone else's technology.

In markets like books, art, music, and Hollywood, it's extremely hard to predict which products will become runaway hits. In the early days, if a high-status person embraces a product, it can have an enormous impact on its trajectory. Influential people adopt and endorse a product, which gives it an initial push.

In our culture, particularly in the last 300-500 years in Western culture, people have become much more ambivalent to ecstatic experiences. The idea of losing control is seen as dangerous and shameful... We're a culture that's very much about individual autonomy, and ecstasy is the opposite of that – it's about surrendering control.

I don't think you can find any other organ in the body that has correlation with so many other organs than the mouth. Research has been widespread, and over the past 30 years, gum disease has been linked to heart disease, to colorectal cancer, to diabetes, to all sorts of issues within the body.

In my lab, we can control ageing easily. We have mice where we can dial up the ageing process or reverse it. It's not that hard when you know how. Until recently, we didn't know there was a backup copy of the information which has been corrupted, and now we can reset it using an embryonic gene trick. Ultimately, I think we'll be able to pop a pill and reset our body's age.

We are literally right now living through one of the biggest revolutions in human history, certainly in medicine, and most people aren't even aware that it's about to happen. Economically, the world is going to be much richer if people live longer. That means more money to spend on urgent challenges such as climate change.

What is obvious is that the first reason people use drugs is that they're there. You can't use drugs unless they're there, and they're cheap for your pocket or for the fruits of your stealing! For that reason, we need to get a deeper understanding of the fundamental question of why drugs are available on our streets.

The most common misunderstanding is that the Arctic is just a frozen wilderness with a lot of ice and glaciers and a few polar bears roaming. On the contrary the Arctic is a very diverse part of our planet with multiple resources and economic opportunities, the home for over four million people of different nationalities and diverse ethnic origin.

When I have a bad day, that has nothing to do with the market! But how I respond to that bad day may be a reflection of a general level of discomfort about how the economy is doing and so forth. It's an out-of-bounds signal. In that sense, it's pretty unique!

If you can rank oboists and there's one who's clearly the best in the world, anyone, anywhere, can access that person. So why would you listen to the third-best oboist who happens to live next door?

GDP only catches a slice of the value that we value. It captures what goes on in the market, the financial value of goods and services sold in an economy over a year. We need to get away from the narrow, monetary, measure of GDP which asserts that economic value is the only thing we care about.