If some of the things they predict don't come true, the theory has to be disregarded and there are many, many, many counter examples to financial market efficiencies.

如果预测的一些事情并没有成为现实，那么这些理论就会被摒弃而且我们也有很多，很多，与金融市场有效论相反的例子。

耶鲁公开课 - 金融市场课程节选