有些刊物近期常提到“知识更新”的加速度规律问题。说“每隔十年,知识的总量就要翻一番”,或说“世界知识总量每隔七至十年就要翻一番”等等。究竟是什么东西翻一番?过多长时间翻一番?众说纷纭,互相矛盾。而且,什么叫“知识总量”?概念模糊不清。如果按“每隔七至十年知识总量翻一番”这个周期来看的话,计划十年出齐的《中国大百科全书》完书之日,也就是它陈旧过时之时,令人难以置信。现代科学技术确实发展很快, Some publications have recently mentioned the problem of acceleration law of “renewal of knowledge”. Say “every ten years, the total amount of knowledge will have to double,” or say “the total amount of knowledge in the world will double every seven to ten years.” What exactly has doubled? Over a long period of time has doubled? There are many opinions and contradictions. Moreover, what is called “the total amount of knowledge?” The concept is ambiguous. If we look at the cycle of “doubling the total amount of knowledge every seven to ten years,” it is difficult to plan for the end of the decade when the “Encyclopedia of China” is completed, that is, when it is out of date. Confidence. Modern science and technology do develop rapidly.