Maybe if there were these sort of death-free zones, they'd get rather crowded.

也许如果真有这种死亡免疫的地区，那里肯定会很拥挤。

耶鲁公开课 - 死亡课程节选

Instead of having death-free zones, imagine that there were death-free times.

不是拥有死亡免疫地区，想象一下，而是存在死亡免疫时间。

耶鲁公开课 - 死亡课程节选