For Christmas two years ago I got a Holga. A Holga is a cheap, film camera that is made in China. Within the last few years she has gotten a large cult following. And I am one of the members of that cult. One of my favorite feature about the Holga is she allows the photographer to take multiple and long exposure pictures.
A multiple exposure picture is the process of opening the lens multiple times on the same piece of film. For long exposure pictures you leave the lens open and catch movement on the film.
Multiple and long exposure pictures are visual examples of multiplicity. You visually see the multiple images, one on top of the other. Creating a story or defying the usual.
As Calvino says, multiplicity is like a tangled skein of yarn. No piece of yarn can be moved without affecting another portion of that yarn. When you take a multiple exposure picture, every shot will affect the last shots taken. The two images will now be visible through each other.
Below is a long exposure picture that capture the headlights of taxis in Times Square. This pictures captures multiple details over a span of time.