We are about to canter off into a routine, so - emotionally correct myself, perhaps - I rein him in. I want to know how this most New York of performers (he was five miles uptown when the attack happened) finds his city now. He thinks for a second - more than a second, more like 40, a professorial trick he uses a lot. "New York has changed personality," he says, just as I am about to repeat the question. "People have come together, they're humanised, they care for each other. People are normally so fearful of strangers, because the next person you meet may be a pimp, a hoodlum, a gangster. But everyone's forgotten about crime. Crime is down 90 per cent. People are offering their blood, more than they need. Everywhere are these fabulous expressions of compassion."