I have been using the computer as a work aid since the mid-90's. It is extraordinarily well suited to how I think and work and has transformed my practice. Nearly everything I have done in the past 15 years would have been impossible without it. I use the computer for drawing, composing and colour planning everything, from postage stamps to paintings to architectural-scale installations.

I wanted to make new works of very contemporary objects, which I thought was interesting because many of them are manufactured in China, but these objects are universal, they go across all languages, all cultures.

I am personally happy for artists to make as much money as they can while they can to carry them through the times when they can't.

When I was teaching I often said to students that you are trying to be too creative, don't be too creative, because there is so much already in what you are making, you don't need to do very much. You just need to do a little bit, and that is a lot.

I do think I paid a price as an artist, and I am trying to make up for it now - I work six days a week in the studio, and I've never been happier.

The first exhibition that I used bright colours in painting the room was at a gallery in Paris, and there were seven rooms in the gallery. It was very nice gallery, not very big rooms, around the courtyard, it was a very French space. So I painted each room in different colour. When people came to the exhibition, I saw they came with a smile. Everybody smiles - this is something I never saw in my work before.

There is a complete difference between art and the art market. Prices are high now for the simple reason that there are people are willing to pay them. The market dominates the art world today because at the moment collectors call the shots. Like everything else that won't last forever.