Below, TFox writes:
The dollar has already fallen, and will do more if China decides it no longer needs so many dollars in its banks.
To which I can only say, It’s about time. The dollar has been needing to fall — or something else had to happen to countervail the US balance of payments — for many years. Andrew Coyne pointed out (in 1989!) that, as Herbert Stein says, Anything that cannot go on forever will eventually stop.