It is a crisis of the elites. Scotland’s push for independence is driven by a conviction — one not ungrounded in reality — that the British ruling class has blundered through the last couple of decades. The same discontent applies to varying degrees in the United States and, especially, the eurozone. It is, in many ways, a defining feature of our time.

The rise of Catalan would-be secessionists in Spain, the rise of parties of the far right in European countries as diverse as Greece and Sweden, and the Tea Party in the United States are all rooted in a sense that, having been granted vast control over the levers of power, the political elite across the advanced world have made a mess of things.