但如果教的是AI干不了的东西，那就不是砍不砍的问题，而是怎么教的问题。
As we spin around madly in this century, trying to figure out how to survive a possible apocalypse of language and human expression, we must all learn the secrets of anxiety. We have to understand what its initial use to us was when it happened, why we need worry, why we need doubt about the burdens of history. Yet after that, we have also to learn how to let it pass; when to rest on faith. We may never be free of our influences. Our precursors may embarrass us with their brilliance, and we may sometimes feel ashamed to consider the extraordinary things they created, often with far fewer means than we ourselves possess. Yet we should always remember that these things were created for us, the same as we make things to pass down to our own successors. They are a memory we can’t afford to opt out of.
，这一点在新收录的资料中也有详细论述
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let frame: StackFrame = topFrame;