Sometimes I think we want our crises to look like Hollywood explosions. Whether it’s the end of empire or the collapse of global capitalism, things feel more satisfying when they are sudden and cataclysmic.

It’s no longer bold to posit that the US is in decline – at least relative to other global contenders. In fact, it would be far more radical to maintain that the US will remain an unrivalled superpower for the rest of the century.