To make those markets work well, they have to make the market thick, they have to attract enough participants to get good transaction levels. They have to deal with the problem of congestion that can be symptomatic of thick markets. You have to also make the market safe enough for people to transact in!

We mustn't focus exclusively on this threat, and it tends to be the case that the global elite does. I was at Davos in January 2020 and climate change was the agenda – and the pandemic had already begun! It was quite difficult to persuade people that there might be a nearer-term threat facing us than climate change.

You start by asking yourself certain questions: who am I? what is it that wants to know who I am? What do I want for myself and the world? What is my purpose? What gives me meaning and purpose in life?

I would describe games as an art form centred around systems. Viewing the world as a system means perceiving it as a collection of interconnected elements. These elements interact in a way that both enables and restricts themselves and each other.

I've worked with many entrepreneurs and billionaires and I see the same trend over and over again. What they want is someone to manage the liquid side of their portfolio, and they want to take a huge chunk out and use it as their risk capital on things they know and can control. The money didn't just drop-in… it arrived through creation and building! These individuals are always going to be about growth….

People ask me all the time what do you want to be known for? My answer is simple. I want people to say 'Shaquille O'Neal was a nice guy...' forget how much money I made, forget how many championships I won, or what type of businessman I am.

In postmodernism, there are no absolute truths; everything is relative, of course other than the one absolute truth that there are no absolute truths. This is a form of intellectual terrorism, nihilism.

Always remember – it's best to own 10% of a big number, than all of nothing!

I see games as psychology experiments that we conduct on ourselves. This realization struck me while playing Sudoku. When you first encounter Sudoku, you're acutely aware of the rules you're applying to solve the puzzle. It's a conscious effort, like turning a crank and watching the puzzle get solved. However, as you progress, those initial heuristics, those rules of thumb, become internalized. You stop being aware of them; they become second nature, and you start focusing on more subtle, higher-level heuristics.

I walked in completely anonymous and meanwhile these people are responding to my work and have no idea who I am, and it was just 'this is the most incredible feeling in the world'.

We waste 75% of the energy we produce, half the food we produce and half of our natural resources. So much of our waste is waste because people don't understand that it's a resource that can be used!

San Francisco is the city of love and compassion, will always be, and will never change that. I know that's a very broad response, but I do think that's what motivates me the most in terms of the vision and feeling I have for the city.