Yhprum's law
Yhprum's law is the opposite of Murphy's law. ("Yhprum" is "Murphy" spelled backwards.) The simple formula of Yhprum's law is: "Everything that can work, will work." A more specific formulation of the law by Richard Zeckhauser, a professor of political economy at Harvard University, states: "Sometimes systems that should not work, work nevertheless." Resnick et al.