Okay, so 1 is a viable answer in some contacts that needs constant time, the same amount of time no matter what.

在需要常量时间的情况下,答案是1，不管怎样，总时间是,相同的。

哈佛公开课 - 计算机科学课程节选

Well, maybe the answer is there's no particular time at all when I killed him But for all that, it's true that I killed him ? What makes it true that I killed him?

也许答案是,我什么时候杀死他根本没有确切的时间,尽管如此，我杀死他是真的,为什么我杀死他是真的？

耶鲁公开课 - 死亡课程节选