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Continue to ChatTo explain the origin of exchange, you must explain the origin of trust https://www.duckofminerva.com/2010/09/to-explain-origin-of-exchange-you-must.html
To explain the origin of exchange, you must explain the origin of trust https://www.duckofminerva.com/2010/09/to-explain-origin-of-exchange-you-must.html