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From A B U
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B - “true & useful, but NOT novel”
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B - “this is already in my world model”
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See also “B” floor which has more in it
Learning can be about giving you language for your Bs
- Things that are Bs to you but that you lack the language to point at precisely, to think about precisely
- E.g. opportunity cost, A/B/U, comparative advantage - obvious concepts but language lets you think about the efficiently