Look, I'm not saying our universe exists as a node in an infinite fractal of repeating universes, but one of these is the largest structure we can see and another is the smallest:
What is the average length of something very small (Plank length, electron penis, whatever) and the biggest thing (observable universe distance, actual universe length) ?
I think the top is the small one because you zoom in really far on small things in rectangles. And the bottom is the universe because it's a distorted view of a sphere, like our full view around us.