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It’s a good book that explains basic economics in simple terms.

But like any other book that promotes an economic policy, it suffers from the same problem: it assumes we all live in a vacuum, and forgets that most people are economically illiterate.
Free market and government non intervention policies, work in theory. In practice, if we want a healthy society, the government has to intervene in order to outlaw obvious scams such as MLM or Ponzi schemes. And it has to enforce price control on things like alcohol and drugs.