The president stands between the twin mirrors of the past and future, causing his being to become reflected an infinite amount of times. At first, this can be very disorienting. But it induces the president to move quickly. He may, for example, mimic a wave with his arms in order to see how his actions extend across this mirroring of time, observing if the figure at the end acts at the same instant as the figure before him, and so on and so forth.
Calvin Coolidge