Use TURBOWARP https://turbowarp.org/885918377/fullscreen?hqpen&turbo This simulates how a quantum particle bounces around in a closed container. The blue particles are an approximation of the waves emitted from the particle. The red point on the screen is the center of mass of all blue particles. (AKA the "position" of the particle) The red point will eventually settle around the middle as the blue points lose their energy to the walls.