This does raise the question of how anyone learns anything in the first place.

Perhaps most people learn like this: They already have an idea X. Then they hear a very similar idea Y, so they accept it, although they interpret it as X. But once they agreed that Y is their idea, and they hear it repeatedly, they gradualy become aware of Y as something slightly different from X. Thus they made another inferential step.

Perhaps many people are willing to learn only when it does not feel like learning.