There actually is one other use for gold which nothing else can match: it would be the absolute ideal metal for waterfowl shot, half again denser than lead, soft, and totally inert. You'd have to alloy it with something to make it hard enough to not deform from acceleration, but you could kill geese all day long with 2.75" shells and #6 shot and probably #7.
Wouldn't that be cool?
I was replying to:
“The only two real uses for the stuff traditionally have been electrical connectors and jewelry and the quantity of the stuff stashed at Ft. Knox alone has to be billions of times what the human race will ever need for jewelry or connectors”
And I think I have proven that to be wrong. There is not nearly enough gold in the world to satisfy the need for jewelry, for example.
Scarcity and its physical characteristics make gold an ideal store of value, and that itself makes it valuable.
What are the practical uses of paper money?