In my old age, I'll be in L.A.

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.

Of course you can still paint landscape - it's not been worn out.

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.

I can often tell when drawings are done from photographs, because you can tell what they miss out, what the camera misses out: usually weight and volume - there's a flatness to them.

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

I worked in the NHS as a hospital orderly during my national service, and people thought it was a noble service. But over the years it's lost its humanity.