There is snobbery in the idea that the modern cult of celebrity has not touched the lofty realm of letters. We are like visitors to a garden or flower show who wander the pathways and do not notice the beautiful flora but instead exchange murmurs about the appearance of the soil.

I'm interested in how a person forms her beliefs, how that happens. Beliefs of all kinds make up the animating force in each of us. Without them we would be paralyzed, lifeless - the glove without the hand.

Listening to people discussing a novel can be very interesting, if you've read whatever novel is being discussed. No one, it seems, ever says, "This is a great book but I didn't like it." Taking a little time to think about why this might be has been very liberating.

There was a period of a few months, however, when I had a dreadful physical pain. I had just started writing a particular section of the novel and was initially worried that it would affect my work. I was woken by awful nightmares; I saw several doctors, tests were performed, nothing came of them, and the medics were mystified.It was two days after I finished writing the section that the penny dropped. The pain had suddenly disappeared and so too had the nightmares. I'd got things muddled. The pain and the nightmares were both psychosomatic.

There are a variety of ways in which a wedge is driven between the reality of the world outside, the motion of atoms, and our conception of what is there. Some of it has to do with what we're told, some of it to do with sensibilities that might be described as cultural, some of it to do with habit, some to do with heuristics we, as Homo sapiens, invoke because we cannot do otherwise - to name just a few of the impediments.

Another effect of news articles is that the events, however frightening, can thus be consigned to the box of things that happen to other people, not us, and that we are doing things to bring them under control. This is the diet we're fed all the time, so we acculturate to it. And news must, in turn, follow the form to which we - our bodies - are accustomed: describe the event, incite the fear, then say how it's being addressed, how the herd's alpha males are dealing with it.

The technology broadens an individual's social field massively and at the same time makes it much, much easier and cheaper to consume gossip. We have the same appetite for gossip, but now its acquisition is even easier than grabbing sugary and fatty foods off a supermarket shelf. And look where that got us. When you watch people in public desperately punching away at their machines, it's hard not to think of addictions.