Depends on the "currency" type Some legal currencies are issued more and more based on "government credit" instead of real assets like gold will likely have th

Depends on the "currency" type Some legal currencies are issued more and more based on "government credit" instead of real assets like gold will likely have their value drop (supply > demand). For "Cryptocurrencies" (let's discuss whether they quality as "currency" or not in another place) Some types of them has limited supply by design (but the supply can still increase slowly for the next N (e.g. 10) years with slower rate each year) So if the demands goes up (which can also go down) and the supply does not grow too much, the value per "coin" would increase.