There Is No Such Thing as Intelligence

So claim "other psychologists." 

Not serious ones, I imagine, though serious psychology strikes me as a philosopher as a sort of joke. Psychology's history is mostly philosophy of mind without the possibility of falsification; I am told it's gotten better of late, but the replication crisis doesn't inspire a lot of faith in that assertion. All things equal, though, let's assume 'not the more serious psychologists.'

One of the very replicable findings about at least one measure of intelligence -- reading comprehension -- is that girls get it faster than boys. My elementary school broke the law (such differences already being forbidden) by sorting classes by reading comprehension level, so we had what the kids knew as and referred to as the 'high' 'middle,' and 'low' classes of intelligence. Since I learned to read well fairly early, my classmates were 26 girls and 3 boys, plus myself. The effects of that approximately 9-1 ratio, combined with alphabetical arrangement of students, were that I learned to talk to girls early. This has been an accidental but entirely beneficial outcome, as human beings sort by sex and by age cohort more than is rational. My friendships with women and with people much older than myself have been especially enlightening. 

But it's not true, not remotely true, that anyone can learn anything. Try teaching anything. You'd think that one wouldn't get headway among educators, but somehow it has.