[blahi]

Yes, I commented on that. However history is not predictive of future events. In this case, there are no hostile neighbours and the empire does not rely on long term invasions and occupations. Instead it relies on economic and financial dominance. With the massive brain drain going towards the US having no signs of slowing down, I don't think that's gonna end soon. Additionally there hasn't been such a complete military domination ever.

But what is most important is that (most of) the nations are content with this situation. The complete hegemony will probably end soon-ish but the US will probably be the leader for the foreseeable future.