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.
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.