Got it, so an LLM only understands my words if it has full mastery of every new problem domain within a few thousand milliseconds of the first time the problem has been posed in the history of the world.

Thanks for letting me know what it means to understand words, here I was thinking it meant translating them to the concepts the speaker intended.

Neat party trick to have a perfect map of all semantic structures and use it to trick users to get what they want through simple natural-language conversation, all without understanding the language at all.

That's a really interesting analogy I've never heard before! That's going to stick in my head right alongside Simon Willison's "calculator for words".