Sir Chris Wilson 3️⃣3️⃣@SirHendrick "your rayciss" (yes I know how it's spelt)
Of course there is https://youtu.be/fjs2gPa5sD0 which covers IQ and employment.
There is also some studies done around language usage and the number of words an infant hears before they are 2, along with the variety of words and type of words a child hears before they are 2, and its impact on IQ. That was in a report by some economists. Naturally, it hasn't seen too much publicly.
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