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But, how to estimate the waste of traditional currency? US dollar is based on Capitalism and the weapons. Should we count the price to maintain these two factors? Capitalism is almost built on the balance of wasting resource and incoming. Should we count the waste in market? Developed countries keep QE to spread the debt into global market. Should we count the side effect of QE? As citizen of developed countries, we take the benefits of traditional money and we control it. It is good for us as government or corporation, but may not be good for individual.