Interesting, what do you think about forex in this context? Trades are made based on the value of one currency relative to another, so fluctuations in the value of a pair can have wide-ranging implications based on which currencies' value ratio is changing. One currency gaining in value relative to another isn't always a good thing for the people using that currency. For example, export economies don't want to have a currency that's too valuable relative to their main import customers. It seems hard to tell what's most aligned with human well-being in this case.