It's also-- a lot of laughter isn't caused by incongruity so a lot of times when we laugh there's nothing incongruous in any deep sense about it.

还有…,很多笑不是因为不一致引起的,很多时候我们笑,并不是因为其中有不一致的现象。

耶鲁公开课 - 心理学导论课程节选