Online trolling and abuse is a real problem now. A lot of people who want to express an opinion now are fearful that they'll get piled-on. And there's no real immunity from it: Zadie Smith's brilliant New Yorker story 'Now More Than Ever' is really an expression of her terror of the arbitrary possibility of being judged by a moralistic internet pile-on, of being as they say cancelled.

People have been told that asthma is an incurable condition, that they'll need to stay indoors and rely on a bronchodilator every few hours for life. But that's just not true. The way you breathe is deeply connected to asthma symptoms, a message that asthmatics rarely hear from anyone.

A speculative bubble exists when the price of something does not equal its market fundamentals for some period of time for reasons other than random shocks. [Fundamental] is usually argued to be a long-run equilibrium consistent with a general equilibrium

You have to go into a very quiet place in your mind, away from the noise of the world, the noise of doubters, insecurities and your own self. You have to quiet your disbelief and create open mindedness to your own ability to succeed and overcome.

The danger is that when we jump too quickly to the solution, not only is the floor littered with the inventions that never worked, but we risk designing solutions that never fit the problem.

We often talk about misinformation and disinformation, but the deeper issue is the speed and flow of trust, because we're responding to feeling rather than expertise and credibility.

Society must demand that you comport yourself within a framework of rules. Once those rules break, society breaks down.

Without what Becker called 'cultural world views' we would be overwhelmed by existential terror. Beliefs about reality that we share foster psychological equanimity by giving us a sense of meaning and value.

To me personally, movies are about escapism. Movies are about sitting in a theatre, watching something- watching a story unfold with people I don't know- watching that happen and emoting an emotion knowing that for those two hours, when I walk into that theatre, I don't have to worry about what is going on outside.

They should be stress-testing their balance sheets and portfolios under a range of negative scenarios, and have sufficient capital and liquidity to withstand scenarios that are far out on the tail of the distribution of possible outcomes. The stress tests should account for potential bubbles in global asset markets.

We wouldn't want to live in a world of full transparency. That is a world where I can see into your brain, and you into mine. We all need privacy for our thoughts, and inside government we need politicians and advisers to be able to explore ideas in private.

Money gets inside us; it creates our perceptions and changes the way we operate. It changes the people among whom we are, and who we are. When we're not in touch with that reality, it can change us in heinous ways.