Neat, I got a shout-out. I feel honored.
You'll notice I specifically talked about control of the money supply, because hyperinflation absolutely
is a real concern if you don't have a good monetary policy. But by the same token you ignore what would happen if the commodity that backs a currency experienced a sudden explosion in supply. There you go, your gold-backed currency is now hyperinflated.
You've also not bothered to address the fact that commodity-backed currencies limit wealth generation. You've just called it "false wealth" out of hand without any justification for such a statement. Say you took all your "fake money" and bought land, houses, etc. with it. Are you going to tell me those things aren't "real" wealth, that they have no real value? And if you bought them with fiat currency, then it stands to reason that it, too, has value--value enough to purchase such things.
Is the value of fiat money variable? Absolutely. That is one of its strengths as well as a weakness. No one has claimed otherwise. But its variability is useful as a strength because you can control the money supply to adjust the value of your currency. Gold-backed currency does not afford this luxury--at least not very easily. You consider this a strength, but I consider it a flaw since it reduces macroeconomic liquidity.
I'm not arguing that gold has no advantages over fiat currency, just that the combination of its advantages and disadvantages do not overpower the benefits of fiat currency.
A more interesting idea brought up in this thread was using a basket of tangible assets to determine currency value. Since it is not tied to the availability of a single commodity (such as gold), it would evade many of the drawbacks of using gold alone. A major point against it would be its complexity--you'd have to decide what items to include, how to gauge their value in objective terms, etc. But if you want currency backed by
something tangible, I think that would be a better way to go.
That you admit we've long since passed "peak gold" is essentially an admission that a return to a gold standard would result in economic stagnation almost instantly. We just got out of a recession and you are talking about plunging us into an even worse one.