As promised, I've written up notes for a method to preserve learning ability in an age of LLMs:
http://ibiblio.org/bosak/pub/CogDevNotes20250804.pdf
All of this seems terribly obvious to me, but I'm not seeing anyone get specific about a plan. As noted at the beginning of the document, I'm not interested in hearing from people who don't understand the problem. But I do welcome serious input before revising this and publishing it on my academia.edu account.