Market capitalization is a very basic number that tells you nothing about the actual amount of money invested in an asset. It just moves along the current price.
For something truly staggering, look at how the IMF literally created 650 billion USD out of thin air:
IMF Managing Director Announces the US$650 billion SDR Allocation Comes into Effect
That's actually that amount of money created, not like the Bitcoin market cap, which only considers the latest price, and the number of units. In reality, there's way less USD invested in Bitcoin that the current Market Cap.