If you ask them why it matters, they say, well it's pretty obvious-- it's all their investor psychology that we have to deal with.

如果你问为什么这么重要呢,他们说,这很明显,因为我们要考虑投资者的心理

耶鲁公开课 - 金融市场课程节选

Does anybody know why so much time is spent on that? Yes?

有谁知道为什么要在这上面花这么多时间吗,你说

耶鲁公开课 - 基础物理课程节选