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many years ago i heard a mathematician from vienna, whose name was marchetti, explain how the innovation in the military industry -- therefore, secret innovation -- and the innovation in the civilian society are two sinusoids that are kind of opposed.
很多年前，我听说了一位维也纳的叫marchetti的数学家， 他解释了在军事生产部门的创新 是秘密的创新。而这一创新和 民间创新就像两条相反的正弦曲线。