“信息是熵的相反数”或“信息就是负熵”,这一论点在学术界广泛流行,似成定论。事实上,信息不仅不是负熵,恰恰相反,信息是熵。 一 “信息就是负熵”的始作俑者是控制论的创始人维纳。维纳在其数学名著《控制论》中写道:“我们把它定义为信息量的量,是通常在类似情况下定义为熵的那个量的负数。…… “Information is the opposite of entropy” or “information is negative entropy,” a widely held argument in the academic community that seems to be conclusive. In fact, information is not only negative entropy, but rather information is entropy. The initiator of “information is negative entropy” is the founder of cybernetics. Wiener wrote in his mathematical masterpiece Cybernetics: "We define it as the amount of information that is the negative of that amount, which is usually defined as entropy in similar situations ....