Nature, never, never let's you down, it's not a cliché, nature isn't a cliché, pictures might be, but you can get tired of pictures.

The picture itself is a document. How do you mean? We're looking at a document. It gives you clues.

I can see that cinema seems to be finished. Everybody has a bigger screen at home. I'm assuming eventually you won't need a screen at all - these iPhones will just project.

Water in swimming pools changes its look more than in any other form its colour can be man-made and its dancing rhythms reflect not only the sky but, because of its transparency, the depth of the water as well. If the water surface is almost still and there is a strong sun, then dancing lines with the colours of the spectrum appear everywhere.

My only worry is the painting I'm doing. Nothing else.

The cameras are getting smaller, they're getting more versatile, and eventually, I'm sure you'll have a camera with lots and lots of things on it so you can alter the picture. You could alter perspective.

And then I went round the corner and there's a Van Gogh portrait, and you just think, well, this is another level. A higher level, actually. I love the Sargent, but it's not the level of Van Gogh.