I do not talk about life and death – I talk about birth and death, they are opposites, and life is simply a continuum of both, and you cannot have one without the other.

Emotions are the brain's way of making us pay attention immediately to what is most important so that we can react as quickly as possible. In evolution, that meant 'survival' – the rustle in the bushes may be our next meal or may make us its next meal – something that we have to chase, or run away from – and in either case, we don't want to have to stop and think.

Thanks to monetary policy, business cycles are far less volatile today than they were in the 19th century, when we had huge swings. But if cryptocurrency takes over the way its proponents would like, we could return to the ups and downs of the pre-monetary policy era.

I have anxiety and depression, I don't 'suffer with them' as the description would normally go. I have them in the way I have arms, legs, eyes and a mouth, they are a part of me.

And the overall picture that's emerging is that the controls which still work operate more along corporate boundaries than along national boundaries. In order to censor YouTube, for example, countries like Turkey and Pakistan had to block access to the whole site; it's not practical just to block selected content.