the cause of the great depression was not what happened after the crash..the cause was excessive debt and old fashion fraud in wall street. the stock market was scam built on house of cards...just like the subprime etc... when banks goes broke they have no money to invest and investors lose money they have no new money to invest etc. in economics books they keeping talking about monetary supply the basic principle wall street is blackhole....mostly good money chasing bad money or bad stale assets. aweful investments and bonds are risky....cash is king...cash doesn't lose 50% of value an you need cash to buy stock,gold.real estate...now if ben wants to make cash worthles that is his perogrative. or destroy the currency...to end the business cylcels of boom and bust .. cash is the new gold of the space age or new gold in the modern economy.