Earlier quoted context omitted.
"IQ is biological" And you believe this because?
sweeping statement, I understand. at core is my position as a materialist - I think everything is physical / material / biological. 'Intelligence' is simply an expression of that, and IQ as a measure of that is measuring something that's biological, like left-handedness or height. My evidence... I've not seen any evidence to the contrary. We do see evidence that physically messing with brains causing changes in brain…
"everything is physical / material / biological."
I don't believe in ghosts/souls/the immaterial, but this is irrelevant to social conditioning having an objective effect on IQ tests. Yes, the brain that stores information is "physical", but the information is not stored in birth.