"Popular culture isn't a freeze-frame; it is images zapping by in rapid-fire succession, which is why collage is such an effective way of representing contemporary life," he writes. "The blur between images creates a kind of motion in the mind. If, for example you take a walk through midtown Manhattan, you might in quick succession see a street vendor, the back of a girl's legs, [and] a taxi as it comes close to hitting you. You see parts of things and you rationalize them into a scenario."