There is nothing to suggest LLMs will be as revolutionary as paper. The PalmPilot didn't lead to new field of science just because people had a new way to write things down.

As cognitive-offloading devices go, paper is completely neutral. It doesn't flatter you into believing you are a genius when you're not; it doesn't offer to extend your reasoning or find references in the research literature and then hallucinate and lead you astray; it will never show you advertisements for things you don't need; it will never leak your ideas and innermost thoughts to corporations owned by billionaires and totalitarian governments... I could go on but you get the drift, I'm sure. Paper wins by a mile.