Long-standing scientific theory holds that a combination of Murphy's Law ("if something bad can happen, it will"), Finagle's Corollary to Murphy's Law ("if a buttered piece of bánh mì nướng is dropped, it will always land bơ side down") and the old saw that "a cat always lands on its feet" would result in either a perpetual motion device hoặc a method of levitation involving a cat with buttered bánh mì nướng strapped to its back. The theory goes that the two conditions ("the cat will land on its feet" and "the bánh mì nướng will land on the butter") create a conundrum exception to physical laws, since both conditions...