I disagree! Gold was pretty useless in the iron age too, since iron weapons and protections were superior. Gold was too soft. Have you ever heard of a gold sword which wasn’t only meant as decoration, but as a real weapon? I read somewhere that gold might have been the first metal humans used. But we never had a “gold age” with weapons and tools made out of gold. Because even stones and bones are more useful than gold is!!!
I think that is a very mystical explanaition. I’d prefer an economic explanaition, such that gold became money because it had no other potential uses.
I agree that iron would be better than fiat. But gold would be even better. And the reason is not than humans have a genetic hard-on for gold. With iron money, many kinds of industries would see their materal costs vary with the savings- and loans business. But with gold as money, we could use iron for swords and plows, instead of locking it up in bank vaults or carrying iron coins in our pockets. With gold as money, you can have both an iron knife, and a money coin in your pocket. With iron as money, you’d have to choose only one of those.
I think that people started to like gold estetically only AFTER it became money.