Whether the subject be production, currency, finance, investment, or consumption, the field is filled with incorrect theories and "20-20 hindsight." The only thing it seems to do is make people confused.
產業、貨幣、金融、投資、消費… …，不僅充滿了錯誤推論和「後見之明」，而且還總是搞得人一頭霧水。