The Internet is subsuming most of our other intellectual technologies, it's becoming our typewriter and our printing press, our map and our clock, our calculator and our telephone, our post office and our library, our radio and our TV.

There's something beautiful, open and present about using the human voice. We've lost the dynamics of audio over the last 30 years because of compressed music formats, radio and different genres of music.

What crises actually do is expose the underlying fragility and structural flaws within an economy and society. Some of this is endemic – financial markets are fragile because they are giant pools of sentiment and leverage at their heart.

I do agree though, that in recent years receiving abuse online has been normalised to the extent that I expect it and know there's very little I can do to stop people from saying these things.

I earn my living from coaching people how to fight… it may come as a surprise, therefore, to learn that until I was in my early twenties, I was terrified of fighting. I hated arguing, shouting, violence – all forms of conflict, basically. That's not unusual, of course, but to be honest, I was a bit of a wimp – or, as some of the kids in school liked to tell me, a pussy.