Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

How to trade “exotic” currencies?
Keep in mind that not every currency is "tradeable", i.e.: convertible.  In fact, neither the Brazilian nor the Thai currencies are fully convertible, and the trading with them may be limited. There are 17 fully convertible currencies currently in the word, you can find the list here.