After brainstorming a bunch, I settled on an idea based on the contrasting words Near/Far and Large/Small. I designed these symbols of a univers and an atom to use as my dots. I like these symbols for their similar structures, yet their physical counterparts differ in scale almost as much as it is humanly possible to imagine.
I made this second one by hand as I couldn't figure out how to make it work with the pattern swatch tool. Maybe because the step is less than half?