[eldritch_4ier]

What is incredibly well established is that g is incredibly predictive for many life outcomes from income to educational attainment to drug addiction. This is what IQ test measures.

The only thing disputed is whether g is the same thing as “intelligence”, and the only dispute there is from softer science fields because “intelligence” is a word without a precise definition and a lot of feelings and opinions wrapped up in it.

[tptacek]

For the same reason any racial supremacy stereotype is tattoo: because it's toxic, not because it's valid.