In the west, we are use to thinking of ourselves as global powers. In our own terms, we have been the world’s major economic powers, and have proud colonial histories. In reality, those colonial histories are murky, and we have only had dominance because of widespread poverty. The rise in the economic might of China and India has gone with increased living standards: the only thing that could stop a major re-alignment is the sort of humanitarian catastrophe which we should see as morally repugnant.
But change is not just about economic might: it is also about how nations naturally do things. The western mindset that has been dominant is not the only way.