Bergson and multiplicities

In his “Introduction to Metaphysics,” Bergson gives us three images to help us think about the duration and therefore qualitative multiplicities (The Creative Mind, pp. 164–65). The first is that of two spools, with a tape running between them, one spool unwinding the tape, the other winding it up. Duration resembles this image, according to Bergson, because, as we grow older, our future grows smaller and our past larger. The benefit of this image is that it presents a continuity of experiences without juxtaposition. . . .