The Stonehenge proposal got a lot of interesting criticism. One of the best - or worst - said something like, "Go home to Las Vegas." I think this project could possibly be realized at a very late part of my career. Right now, I don't have the authority, the budget, the credibility.

Stonehenge had an aura but it was also just stone. Then in the sixties, it became a great hedonistic, hippie, druid, rock-n-roll party site. There are amazing pictures of people up on the stones going wild and that's the image I recreated for my model of the project: full access to everyone. I even invented a Stonehenge soccer team that uses spaces between the stones as goals.

My purpose isn't to be confrontational. My purpose is to find out about the world and play myself against it to the extent that it is even conceivable.

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.

National parks, zoos, protected areas, polluted seas - using the whole world as a readymade, I thought about it as a stage set. To activate a stage set you need a drama, an actor to offset it.

I'm neither shy nor impressed by media and press. It's just another industry to me. My response to the criticism was, "I work with a steel factory. Why can't I work with the media?"

In a way I am saying the nation-state doesn't exist, borders don't exist, you can try going anywhere. It is a kind of pre-Internet consensus I always had in me.