"The chess-board is the world, the pieces are the phenomena of the universe, the rules of the game are what we call the laws of Nature. The player on the other side is hidden from us." -T. H. Huxley There's an amazing interactive application on the Scale of the Universe that was just pointed out to me (thanks, Brian L.), and I had to share! So go play with it (again, link here), and let's talk about it.