Not being able to have a baby for two and a half years. Lots of people say it made me a better person; I think it made me worse. You go to a very dark place with your friends because they are having kids, and you want to be happy for them but you’re not.

But the market was changing. The industry was changing. The scale was changing. And in the end we knew we would be either the last company to make it or the first to not make it. We were right on the edge. We thought we would be the last one that made it, but we were wrong. We were the first one that didn't. We put an end to the companies that tried to do that. We certainly made our fair share of mistakes, but in the end I think we should have taken a bit longer to realize the world was changing and just gone on to be a software company right off the bat.

The years between 13 and 17, which I think are very formative, and the rather arid public school upbringing I had at Harrow.

Nothing. It’s too risky. What if you eliminated a misjudged situation from your life and it turned out that one of your children wasn’t born, or you failed to meet your partner?

As having been loving and fun.

A blurred, warm state of total acceptance and joy.

A trip to a Macedonian refugee camp that I switched out of, to go at a later date. Those who took my place were killed in a horrific car accident.

A mum, an airline stewardess or an artist.

To Sophie, for not being a better parent.