Earlier quoted context omitted.
Essentially its the idea that the interaction between an incumbent power and rising "challenger" power inevitably leads to war between the two. I was expressing my hope that if this does happen, the war can play out in less destructive arenas - one of which is in the competition for reserve currency status which the US has held for the whole of the modern era. This article possibly points at China's first shots in th…
The obvious counterexample would be the previous most powerful empire in the world (ie the UK) ceding that title to the USA after collapsing after WW2? No war between the UK and the US was needed.
No war was "needed" to settle who was #1, it was clear that we (the UK) simply couldn't maintain the empire as it was and we definitely couldn't have fought the US.
We went into WW2 the clear naval power in the world, We exited it in the #2 spot utterly broke.
In less than 4 years the US produced enough ships to eclipse our navy and did it while also producing ridiculously vast amounts of equipment for themselves and their allies across every sphere.
No one with a brain in our foreign office would have even contemplated poking that (and realistically while the US has at times been a questionable ally on the whole in that era they were a reliable ally).
In that kind of total war the side with the larger industrial base wins the war of attrition.
It doesn't matter if the enemy sinks ships if your production rate exceeds the sink rate on a sustained basis you win (somewhat related it's also why naval strategists have been sounding the clarion call about the fact that China now makes more than half of all global shipping, the US is somewhere around 1% - those peacetime yards/skilled works transfer over in a war).
The US did that, they won the war (or their part of it) in the factory lines/mines as much as they did on the actual front.