Did you know that when you are looking in a mirror, you are technically looking at a younger version of yourself? It's true. See, when you look at a regular mirror, your image appears as far back from the mirror as you are in front of the mirror. This means that the image is roughly double the distance away from you. When the light you emit hits the mirror it is reflected back into your eye, but since the mirror is only half the distance between you and the image, you see the image before you actually should.

Crazy? Yes. But this is physics, so it makes since.