It is a work of psychogeography, albeit in a less explicit sense than Iain Sinclair's or Will Self's. It had to be fiction though, because I needed that freedom of including whatever belonged, and cutting out whatever didn't. The main fiction in it was matching Julius' generous and self-concealing character to New York's generous and self-concealing character. I think this also adds to my answer about New York's personality in the book.

Echo is very important to me. I love the repetition of motifs, or the slight alteration of what's been said before. This is part of how one creates a mood, a psychological caul, in fact, around the reader.

My own literary interest is more about excavating the past, or sensing the past inside the present. This requires all kinds of exclusions and sleights of hand. There's an admittedly antiquarian flavor to it, even though there's enough of the present included to lull the reader.

Each time I caught sight of geese swooping in formation across the sky, I wondered how our life below might look from their perspective, and imagined that, were they ever to indulge in such speculation, the high-rises might seem to them like firs massed in a grove.

Perhaps this is what we mean by sanity: that, whatever our self-admitted eccentricities might be, we are not the villains of our own stories. In fact, it is quite the contrary: we play, and only play, the hero, and in the swirl of other people's stories, insofar as these stories concern us at all, we are never less than heroic.

The content of Saul Leiter's photographs arrives on a sort of delay: it takes a moment after the first glance to know what the picture is about. You don't so much see the image as let it dissolve into your consciousness, like a tablet in a glass of water.

There's a reticence necessary when you consider the suffering of others. Into the space created by that reticence, you bring in those things that best help us confront ambiguity: music, painting, film, and so on.