Curious: Why not pick up a book or two on the topic, and use the LLM to help you through it [0]? To me, prompting the LLM without grounding it sounds like a sure shot way to end up learning "pop-sci", as GP puts it, instead of the actual science?
If today's top LLMs are reliable enough (without grounding) to academically learn "complex topics" from, may be I need to adjust my priors. I must say, I do find myself chatting about other topics (without the need for grounding) that I'm trying to "absorb" (not really learn), like Behavioural Psychology & Philosophy.
[0] Products like NotebookLM are built specifically for such usecases.