I think they proved that you can teach someone all the words in the world. And they may be able to remember them. But that putting those words together to form language. Thats something we have to develop early on. And cannot go back and teach. Cuz I remember them teaching the girl tons and tons of new words. And she made so much progress. But ultimately she came to a point where all she could do was learn words. Forming speech and sentences it just didnt happen.
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