> Fiat currencies have value because of the law. So when the value of the Euro swings 30%, it's because somebody passed a law changing its value? Zimbabwe's g

> Fiat currencies have value because of the law. So when the value of the Euro swings 30%, it's because somebody passed a law changing its value? Zimbabwe's government wrote a law saying its currency's value was now zero? No. Any money has value because there's a market for it. Legal tender status helps by guaranteeing certain markets, but even that is no guarantee.