[Arthanos]

The ZIP code you're born in is a stronger predictor of all those things than IQ.

[threatofrain]

And there are other people living in the same zip code as you. A single family may even have more than one child living under the same roof. Naturally the question will arise anyway as to why there are differences in learning speed or fluency.

[oidar]

Do you have a citation for that?

[regularjack]

Do you even need one?

[naijaboiler]

Your parents income is an even stronger predictir

[singularity2001]

smart people love to stick together

[kavouras]

rich*