It seems to me that some things are invisible in the relevant sense, radio waves being an example of that, can be destroyed, so even though the soul is also invisible in the relevant sense, maybe it can be destroyed as well.

我认为一些东西是无形的,在相关的意义上讲，这些无形的东西可以毁灭，无线电波就是个例子，所以即使灵魂同样是无形的,根据相关的定义，但可能它也可以毁灭。

耶鲁公开课 - 死亡课程节选