I guess then I have to ask what type of "money" are we talking about? Real money didn't disappear unless it was removed by the fed. At this point I don't remember what they did but I assume they injected it as a result. "Valued" money types kind of disappeared, but that's because it was just sort of speculative value. That's not "real" money. But what someone says is "real" money changes depending on their definition of money. https://en.wikipedia.org/wiki/Money_supply

Gold backed money is stupid, flat out. There's a reason we moved from it, the complete instability it brings is waaay more disastrous than speculative value being lost in bubbles. What happens when you discover a new hoard of gold under the earth somewhere, you just lose all sorts of money value that people have at random in the macro as a whole? What happens when it becomes cheap enough to throw atoms at each other and just make it with particle accelerators? And then there's only so much of it naturally, so if the economy needs money, you can't just make more of it. You then get nasty deflationary effects because supply can't meet demand and the value of money keeps getting higher and higher.

Spain's economy was eventually destroyed from finding easy gold in the Americas. Their outflows grew from easy stolen wealth, they developed nothing as an economy, and then when the bills came from all of their constant religious and political wars, they were left with a hollow shell producing next to nothing. All because "gold" was "money". They didn't need to produce anything, and they were just running on a temporary high.