And he was right, that is why we don't let people bring their textbooks to most tests. That rule wasn't made because we hate students, its because it improves the outcomes if we force people to commit things to memory instead of just looking them up.

You would need similar restrictions during the learning phase to get people to learn things in an LLM world.

So writing and LLM are still a net positive, but only if you acknowledge the problem and add fixes so people still learn rather than just rely on this crutch.