We're going to have to refine it to deal with the obvious fact that you're not dead all the times when you're unconscious and not dreaming.

以便适应人在无意识和无梦睡眠时,并没有死这个显而易见的事实。

耶鲁公开课 - 死亡课程节选

So there are more sophisticated approaches, some of them are mechanical.

那么这里还有更复杂的方法，有的人是无意识的。

哈佛公开课 - 计算机科学课程节选