In “Fix Money Fix the World” Dominic Frisby applies the concept of “patient zero” to economics, suggesting that to address the world's economic woes, whether wealth inequality or financial stability, the focus should be on fixing the monetary system. Frisby argues that free trade with minimal barriers is crucial for prosperity, drawing from Matt Ridley's notion that human progress stems from the exchange of goods, services, and ideas. He critiques fiat money for its susceptibility to government manipulation and inflationary pressures. He outlines its limitations in facilitating international trade, micropayments, and wealth preservation. Through historical examples and economic analysis, the chapter underscores the necessity of sound money for societal stability and long-term prosperity.