To take it even farther, (i can't type, spelled it 'farter' 3 times), according to fractal mathematics, shorelines are an example of a boundry of infinite length, yet enclose a finite area.
Yeah, fractals is nifty math; essential for modeling nature's beauty. I forget the title of the book that I read that introduced me to fractals, some 20 odd years ago. "How long is the shoreline of Great Britain?" - "It depends on how close you look."
And then there's quantum physics - the closer one looks, the more the object disappears. We still don't know the ultimate makeup of "stuff," but no doubt we are getting closer to knowing. Look how far mankind's understanding has come in the last 100 years. These are good times to be alive.