Two objects that are the mirror-image of each other are perfectly identical objects except for their reversed geometry and, as a consequence, one can expect that they will function equally well. Nature offers many examples of objects that are mirror-images of each other and work identically. The human body is one of the best examples. Both our right foot and our left foot allow us to walk steadily. We can hear as distinctively with our left ear as with our right ear. We can smell as sensitively from our left nostril as from our right nostril.