系统动力学第一讲介绍
  System dynamics is a method for studying the world around us、 Unlike other scientists, who study the world by breaking it up into smaller and smaller pieces, system dynamicists look at things as a whole、 The central concept to system dynamics is understanding how all the objects in a system interact with one another、 The objects and people in a system interact through "feedback" loops, where a change in one variable affects other variables over time, which in turn affects the origin ...