*** $90 trillion of assets ***
Sounds like a lot till you realize these are due to inflation, or, the printing of too much paper money.
In 1970 for 8 hours work I got $10 and thought I was doing good! With that $10 I could buy 50 gallons of gas!
That same $10 today will get you barely 3 gallons and a pint of gas.
Calculate 1970 silver price with price per gallon then.
What is that ratio now?