You bet.
But the value of the medium of exchange should remain the same over space and time.
That would be a neat trick.
Something that the Federal Reserve’s notes haven’t done
Apparently, according to your chart, gold hasn't either.
It’s no trick, it’s a law, a physical law. An ounce, is an ounce.
At one time, it was thought that legal laws, not physical, were things that brought us closer to some constant, universal truth. Now laws seem to obscure and cloud. Not a good trend line.