The stock market to me was like a video game. When it went off, it was like turning the game off. It wasn't something I'd think about until I'd turn the machine on again.

For me, the best places to write are on planes, trains and at airports. Not hotel rooms but hotel lobbies. I'm really happy when I'm waiting for a plane and the message comes that it's three hours late. Great, I'll get to write!

I have to feel that I'm going somewhere all the time. By definition, if you have this urge to go places, then you can't be 100 percent happy where you are. It's not like I enjoy being miserable for weeks on end. But I think it's good to be miserable for about one day every third week - that's ideal for me.

Many Scandinavian writers who had made their name in literary fiction felt they wanted to have a go at the crime novel to show they could compete with the best. If Salman Rushdie had been Norwegian, he would definitely have written at least one thriller.

Christian ethics demand that you should not take revenge. The paradox is, naturally, that Christians worship a God who is the greatest avenger of them all. Defy him and you burn in eternal hell, an act of revenge which is completely out of proportion to the crime

But perhaps that's why we take snaps...to provide false evidence to underpin the false claim that we were happy. Because the thought that we weren't happy at least for some time during our lives is unbearable. Adults order children to smile in the photos, involve them in the lie, so we smile, we feign happiness.

At nineteen I was pretty sure I was going to be a professional soccer player. At that time I played for one of the Norwegian premier leagues. But I tore ligaments in both knees, so I started studying business administration and economics and became a financial analyst, and I worked at a brokerage firm as a stockbroker.