From now on, we are distinguishing California from the rest of the US. The three largest economies of the world are: China, Japan, and California.
California, for now, uses the US $ as a currency. That is unfortunate for California.
The US $ is weak because the US has a weak economy. That fact may not change any time soon. The US $ can be made even more weak, but it will not help the ROA = Rest of America.
And, of course, the term weak means weak as in unable to succeed in competition. You can trade on Forex or SP, it's all the same thing for now.
