Stocks always go down much faster than they go up. That's why it's called a crash. People who put their money into the stocks will find, all of a sudden, that stock prices are no longer being supported by the debt leveraging that's been holding them up.

Small banks that lend to consumers are fine.

Mr. Trump wants to turn the U.S. economy into the kind of real estate development that has made him so rich in New York. It will make his fellow developers rich, and it will make the banks that finance this infrastructure rich, but the people are going to have to pay for it in a much higher cost for transportation, much higher cost for all the infrastructure that he’s proposing. You could call Trump's plan "public investment to create private profit". That's really his plan in a summary.

If you want to see where Trump is moving, look at what the United States neoliberals advised Russia to do after 1991, when they promised to create an ideal economy. Russia was under the impression that the neoliberal advisors were going to make Russia as rich as the United States. What they really did was create a kleptocracy that was virtually tax-free.

The economy is being run primarily by the banks for their own interest.

Debts grow and grow. And the more they grow, the more they shrink the economy. When you shrink the economy, you shrink the ability to pay the debts, so it's all an illusion that the system can be saved. The question is, how long are people going to be willing to live in this illusion?

The vast majority of $100 bills are abroad, not in the United States. So yes, of course there's a use here but nowhere near as much as there's a use for $100 bills abroad.