Looking at falling oil prices as a separate thread is not much use, and neither is doing the same with Chinese stocks, or the yuan, or the millions of Americans who are one paycheck away from poverty, for that matter. It's all one story.

And the take-away from that, in turn, is that focusing too much on 'narrow' conditions in your particular part of the globe has only limited value. We're very much all in this together. In the UK today, it matters very little what George Osborne says or does, or Mark Carney, because they don't shape the future of the economy.

The same goes for all finance ministers and central bank governors across the planet, Yellen, Draghi, Koruda, the lot: the influence they exert on their own economies, which was always limited from the start, is running into the boundaries imposed by global developments.