William of Ockham (c. 1285-1349), a Franciscan monk and philosopher,1 is remembered for his principle of parsimony or simplicity, popularly called “Ockham’s Razor.” He stated that “Entities are not to be multiplied without necessity,” and “What can be done with fewer [assumptions] is done in vain with more.” In other words, when confronted with two seemingly equal explanatory hypotheses, the simplest or most economical explanation should be granted logical deference.