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From what I have read, some rich people in the USA have been preparing for an economic collapse for a few years now.
You need to have food, water, medecine and a safe house in the countryside!
Then you need cash, gold and silver.
They would not leave money in the banks! No stocks or shares.
A community of people to work together!

That sounds very serious. At the end what man need is just the four basic stuffs that we had been teaching ; house food clothes medicine.