If you look at the steps being taken towards Scottish independence, they're being dealt with politically in very dull and boring ways. So if you just feverishly speculate numbered but random Scotlands - because in the book, it's a random sequence of possibilities - you can imagine many ways in which different things might happen.

I enjoy the optimism of design, even though we can see it as doomed. But I'm telling most people that I'm not writing about design any more this year. It makes no sense at all during the recession unless you write about sustainable or ethical design-very basic things, like how to get clean water in countries with a shortage of it.

If you're a poet and you're using rhyme, rhyme generates ideas. If you're a songwriter and you're using melody and words together, they bounce off each other in interesting ways that you couldn't get otherwise, because you do things unexpectedly.

Quantum physics says that there is an infinite number of possibilities and parallels to the one that we know, and every event is also played out in a parallel world. It's kind of a crazy idea, but someone called Saibal Mitra at the University of Amsterdam says that if you could back up your memory in case of a catastrophic event, you could actually revert to that back-up and find an alternative world in which the Earth didn't explode or collide with Mars.

Pablo Picasso said, "Art is the lie that tells the truth," and it's not a terribly radical statement. It's always been that you can tell truth through fiction. And this idea also comes from nuclear physics.

Franz Kafka once said that happiness consists in having an ideal and not progressing towards it. If you did progress towards it, you'd be unhappy because you'd never be able to reach it. You can incrementally improve your life, but you never quite experience the glamour. You never quite get to your utopia, or whatever it is. And once you realize that you can be quite Buddhist about it, and say, "Well, okay, I'm just going to keep detached from it all."

If you look at the steps being taken towards Scottish independence, they're being dealt with politically in very dull and boring ways. So if you just feverishly speculate numbered but random Scotlands - because in the book, it's a random sequence of possibilities - you can imagine many ways in which different things might happen.