The "fancy math" is a bunch of non-linear functions that encode something derived from series of tokens. I believe we're still exploring what the derived vector spaces "mean" for LLMs, with research inspecting smaller and simplified models to try to make sense of it all.
It's clear that LLMs can "remix" in interesting ways. "ChatGPT, write me a Shakespearean-style sonnet about how LLMs work." (https://pastebin.com/FwzqWJ5W) It's not clear to me that our creativity and intelligence is not the same or a similar process.
Beyond that, I'm not convinced there are definitions of meaning, knowledge, creativity, intelligence, etc, that are both useful and don't refer solely to the output. If I need a solution and none exists yet and something creates it, I will call that creative irrespective of process.
But I don't know anything about anything. :)