It's difficult to talk about colour, even remember colour actually.

In fact, I'm a bit of a slob, but I've always said my excuse, I have a higher sense of order, I can see it where others can't. That's my excuse for slobbery, I must admit, but I think it's a good one.

I'm convinced that technology and art go together - and always have, for centuries.

Drawing makes you see things clearer, and clearer and clearer still, until your eyes ache.

Television is becoming a collage - there are so many channels that you move through them making a collage yourself. In that sense, everyone sees something a bit different.

About shadows: do we see shadows? Loads of people don't. A camera will notice a shadow, but how many people have got a shadow in front of them when they take a picture and don't notice it, and then they see it in the photograph because the photograph will catch the shadow.

I think the ambiguity of similarity and difference is very powerful. It's the same scene in different times of year read across the grid, and, of course, different locations reading vertically. But you can get confused and lost in the series. You force the mind, which is always comparing and contrasting, to stumble ... That ambiguity is very powerful. One is getting lost and refinding oneself.