"Naming Tokyo" kicked off at the Palais de Tokyo in Paris in June, and it's going to travel to various art institutions for years to come. Every time it is shown, I'm developing the research and involving more and more people in it. The final conclusion of the work would eventually be to put up street signs in Tokyo with my names on them.

Dutch beaches were known to me as man-made territories, as part of various land reclamation projects. But I was also interested in the media reality of the Moon landing. I wanted to use that event as a measure of time, to see what had happened in those thirty years - which happens to be my lifetime as well. I was born in 1967 and I remember seeing the Moon landing on TV when I was two. All those things were in play. Then it became a big production. It took five months to gather up the goodwill and make it happen.

There are ends, occasionally, with projects. That happens. But they are natural dead ends. It's usually the outside situation that demands an ending. I never really settle for one.

The plane as an object has been a huge effort to make. It is a sculpture, a technological invention, a piece of aviation culture. But really, it only exists to be inserted into a variety of landscapes, to be a catalyst, to offset them.

I was a lousy academic. I spent most of my time in the cafeteria. But I met fantastic people from all kinds of fields; law, medicine, history, and they eventually dispersed all over the world to do their fieldwork. I liked the way these people committed to the long term in a sincere, visionary way. Their projects weren't about "next season." They were ten-year commitments. They were lifestyle choices that had traditions of fieldwork built into them - moving around, living on location, discipline, a real rigor for research.

I'm completely uninterested in the origins of Stonehenge. I don't care about the real story behind it or whether it should be saved or not. What I'm interested in is this: in the Victorian era, you could go there as an early cultural tourist and you were given a chisel to chip off a bit of the stones and take it with you. That's what you did in Victorian times.

People get upset when Baghdad, the "Cradle of Civilization" is burning, or when the Buddhas in Afghanistan are falling. These are real concerns.