Some truths, it seems, are particularly hard to shake, even after the crisis. The idea that finance must somehow, by circular logic or not, add to growth, is deeply entrenched. But like the Icelandic consensus, it needs to be challenged because it lies at the heart of all reform attempts. These ‘consensus truths’ are the most dangerous of all because we take them for granted and in repeating them we make them true. This is why intellectual capture is the hardest problem to deal with in finance, because unlike political capture, it has no regulatory solution.