So the moral here, again, is whenever you're doing an implementation of a simulation, you do need to have some underlying theory about the model.

所以这里的寓意还是,不管你在做什么东西的仿真程序，你需要有一个,模型的底层程序。

麻省理工公开课 - 计算机科学及编程导论课程节选

After all, I'm going to try and build a simulation of the stock market, so I might as well have the notion of a market, and probably the notion of a stock.

不管怎样,我得建立一个股票市场的仿真程序，所以我最好要有股票的概念，和股市的概念。

麻省理工公开课 - 计算机科学及编程导论课程节选