Some of us have posed such uncomfortable questions for years now — and been derided for our trouble. In recent weeks, the now vast scale of QE, and its broader collateral damage, have forced such issues into mainstream discourse. Flickering signs of returning Western growth have also brought official recognition that such measures may soon be hard to justify and that, to paraphrase Chuck Prince, things could indeed “get complicated”, when the lights come up and the QE party is over.