Okay, well technically it inflates by 1.8% per year, but at least that’s steady and predictable.

Where are you getting that info from? The price and value of gold is insanely volatile, its value often changes based on people’s confidence in fiat currency.

Gold doesn’t have an inherent value, and is just as easily manipulated by governments as fiat currency. FDR changed the value of gold to print more money to sustain the recovery after the depression.