On the few occasions the Fed’s former chairman Ben Bernanke speaks in public, which makes him feel physically sick- , he resorts to metaphors. It is what he did in May when he declared that “in 2020 the coyote is going to leap off the precipice and is going to look down”. Bernanke was referring to Wile E.Coyote, the coyote in the Roadrunner, a series of Warner cartoons which ran in the 50s and 60s.