I’ve always liked the idea of objects within objects. If one thing is divisible inifinite times, then the smallest element can be divided into infinite pieces as well. No matter how deep you go into the layers, you will never reach the smallest. Thus you are always at the most outer layer, relative to the inner pieces. It can also be interpreted that you are always at the most inner layer, since no matter how much you progress to the outside, you will never reach it.