Four people cross a street in Florence. You see legs, shopping bags, a shearling coat, a pair of heels mid-stride, and the long diagonal shadows of a low sun on cracked paving. No faces. The frame is cropped at the waist and the shadows do most of the work. That crop is the whole argument. Somebody scrolling past a picture like this twice will start to recognize it on the third pass, before they read the caption or the handle.