Earlier quoted context omitted.
Agreed it's redundant, but there's something else about it too. IQ is biological. You may just as well have a club for left-handed people, or people with green eyes. You'll have about as much in common with them. Not entirely true, but the few Mensa meetings I went to were all 'social' ones (met at a restaurant), and I had nothing demonstrable in common with the people there other than having the same biological brai…
"IQ is biological" And you believe this because?
My evidence... I've not seen any evidence to the contrary. We do see evidence that physically messing with brains causing changes in brain function. Brain damage can cause impairment to memory - short term memory is one of the elements of IQ that gets measured in tests that I've taken.
If you have evidence to the contrary that what we measure as IQ is somehow not rooted in biology, please share it.