I was in Beijing a month ago working on the smoke project in collaboration with an architect there, and I was asked very directly whether it was safe to breathe in the smoke. They did not have confidence in the museum not to use harmful smoke, and they certainly didn't have confidence that the city
“Absolute certainty is not something I strive for anymore. I've learned the hard way that destiny usually looks upon our most strident convictions with amusement, or perhaps even pity.”