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.

I'm depending on other people to take the work and run. And if they run in so many directions, they sort of cancel each other out. So the meaning is always open.

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.

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've made a poster at home. You know the iconic image of Che Guevara, the black and red graphic of his face? I think it's the perfect graphic, the best graphic ever made. I cut a Concorde out and put it over his head so it's Che looking up and the Concorde going by. Both are dead, maybe obsolete.

The space program caused so much future-thinking in culture. People who couldn't go to the Moon were building space-fantasy chairs and corsets and hairdos and anything that they could put their hands on.

In 1989 I came to New York to go to the School of Visual Arts. Then, after two years, I switched over to the New School for Social Research and did cultural anthropology in the graduate school there.