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Oh, I do get his point. It's very old news even if ML people seem to rediscover it every other month. It's just... his tweet is subtly wrong in enough ways to make me unsubtly annoyed 
I feel a bit dense but can you expand on what he's getting wrong? I do want to know!
Innate ability (genetic coding of behavior) that allows a child to bootstrap cognition is different from how a person uses the social constructs (language, math, etc).
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A 30 yo has "hundreds millions" years of experience and their learning abilities aren't half as impressive as a 4 yo.
