In a recent blog, the Insight Team highlighted the dangers of poorly constructed policies in terms of the increased distractions imposed on managers at the expense of a focus on business investment and innovation. In this follow-up, we consider recent financial market turbulence as another example of policy gone wrong. We argue that help in assessing and learning from it might lie in an appreciation of both history and the present – from the work of Adam Smith to recent developments in modern neuroscience, in particular the insights of Iain McGilchrist.