Yeah, but the rest of the countries will afford less of what you produce, so the demand for your products will decrease. That's why China kept its currency artificially low for several years - to be able to sell more of its products to the rest of the world.

>Yeah, but the rest of the countries will afford less of what you produce, so the demand for your products will decrease.

Except for financial products that generate returns USD.

You're almost right. Take out the phrasing "compared to other currencies" and you're there. When dollars are worth more, the dollar-denominated price of everything is lower.

>Take out the phrasing "compared to other currencies" and you're there

In that situation - the dollar has a stable price versus other currencies but goods are cheaper - I don't think it makes as much sense to say that the dollar is more valuable because all currencies are more valuable in the same degree. Rather it's the goods that have got objectively cheaper.