Balletic Quantum Mechanics

The state of the ballerina leaning her head toward her supporting leg (the center of gravity) exists in a parallel and slightly forward universe called efface. It is one of many possible states in which the ballerina can exist. The sum total of all her possible states is called the ballerina's wave function. In an observer-less room, the ballerina exists in all her possible states simultaneously. This state, called superposition, is broken once a separate observer enters the room. The wave function collapses and according to the Copenhagen interpretation of balletic quantum mechanics, the ballerina is essentially forced to "choose", or assume one particular state from her wave function. In the case of the temps-lie adagio at center, we chose to lean our head away from rather than toward the supporting leg in croise derriere.

Interestingly, in the competing Many-Worlds interpretation of balletic quantum mechanics, the entrance of an independent observer into the room causes a split, rather than a collapse, into not one (obviously), but all the possible states that the ballerina can assume. In other words, each possible state in the ballerina's wave function is uniquely realized in a duplicate universe to the one we know and are aware of. So, somewhere out there (say Tuesday's advanced intermediate class, or Thursday's intermediate class), a parallel universe exists in which we chose to lean our head toward the supporting leg (the CoG). We call this parallel and slightly forward universe efface.