The result, says Duffy, was that "photography was dead by 1972". He takes a rare pause, then explains: "Everything had been resolved between 1839 and 1972. Every picture after 72, I have seen pre-72. Nothing new. But it took me some time to detect its death. The first person who twigged was Henri Cartier-Bresson. He just stopped – and started painting and drawing. God, he was useless."