We have a nice theoretical framework, but the application of the framework to the real data is hard and it ends up with politics underneath it all; that's just the real world.

我们有清晰的理论框架,但实际运用理论知识却困难重重,最终还是政治支配一切,这就是现实社会

耶鲁公开课 - 金融市场课程节选

But one of the teaching fellas also passed long to us recently, a little real world example of what happens when you're not mindful of various data types and you're not mindful of the imprecision that's inherent in representing data in a computer, at least using a language like C and low level primitives like floats and even doubles.

最近有个助教告诉我们，一个现实世界中的例子,当你不注意各种各样的数据类型,也不注意在计算机中表示数据时,其内在的不精确性，至少在用像C语言,和float甚至double型数据时，那将会发生什么？

哈佛公开课 - 计算机科学课程节选