@LennyBirch some lib looked at scores with a very small or 0 gap at age 1 or 2 and concluded that later gaps can't have a genetic origin
@LennyBirch maybe they think it's the fault of preschools and schools, I don't know. I remember seeing a great quote on this where
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@LennyBirch ...this is the kind of reasoning we're dealing with...
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