If the ‘reserve currency’ is not the US dollar, I think it will start a war[/quote]
It will make the US unable to fund operations. The reserve currency status is like a tax to the empire via the recycling of petro-dollars.
We’d have to shut most of the HUGE government down including the military and all it’s bases.
It would not be a pretty process.
Conversely, keeping the financial order the same imposes a possible single point of failure for the whole world economy. WIth a quickly deflation economy and skyrocketing deficit becomes more likely every day.