Love this way to "hack" how the human mind tends to optimize itself, much like how you can draw things upside down (the object, not yourself) to bypass the way the mind "knows" how things are supposed to look, instead how they actually look.

Try that - take a picture of a face from a magazine, draw it on a paper. It may come out distorted, since your mind exaggerates things that are more important to you (eyes, mouth more so than the forehead). Then turn the magazine upside down and draw it again. It often comes out much more similar to the original this time.