I wanted to conjure New York as an environment of energies, sounds, sensations. Not as a backdrop, a place that could resolve into history and sociology and urbanism, but rather as an entity that could not be reduced because it had become a character, in the manner that a fully complex character in fiction isn’t reducible to cause, reasons, event. I looked at a lot of photographs and other evidentiary traces of downtown New York and art of the mid-1970s. Maybe a person is a tainted magnet and nothing is by chance, but what I kept finding were nude women and guns. The group Up Against the Wall Motherfucker, which figures in the novel, papered the Lower East Side in the late 1960s with posters that said, “We’re looking for people who like to draw,” with an image of a revolver. I had already encountered plenty of guns in researching Italy—the more militant elements of the Autonomist movement had an official weapon, the Walther P38, which could be blithely denoted with the thumb out, pointer finger angled up. I would scan the images of rallies in Rome, a hundred thousand people, among whom a tenth, I was told by people who had been there, were armed. Ten thousand individuals on the streets of Rome with guns in their pockets.