But I am more interested in spending my time in this conversation on the subject of the OP.
A subject where plain speaking is apt to result in being massively downvoted.
The academics cited by OP describe a primitive and little known tribe behaving in an implausibly politically correct manner with improbably politically correct and satisfactory results, just as Margaret Mead's Samoans acted in implausibly politically correct manner with improbably politically correct and satisfactory results.
We should therefore have as much faith in these anomalously well behaved primitives as we should have had in Margaret Mead's anomalously well behaved Samoans, or, returning to my much safer topic, those criminals so marvelously reformed the by Soviet Union's enlightened penal system.
You would prefer to discuss evidence of academic reliability on topics where most evidence of academic unreliability will get the post presenting such evidence downvoted to -10, and thus disappeared from sight.
A subject where plain speaking is apt to result in being massively downvoted.
Do you mean to say that you have evidence for your claim that you decline to present for fear of being downvoted?
Or have you already presented (or pointed towards) all your evidence for your claim?
"In this study, we use a large-scale incentivized experiment with nearly 1,300 participants to show that the gender gap in spatial abilities, measured by time to solve a puzzle, disappears when we move from a patrilineal society to an adjoining matrilineal society."
It is presently a commonplace of Western culture that women are worse at spatial reasoning than men, and this is commonly attributed to intrinsic biological differences.
It turns out this may be highly questionable. A study in PNAS studied two nearby tribes in northeast India, one with a strongly patriarchal organisation, one with a strongly matriarchal organisation. Both share the same agrarian diet and lifestyle and DNA tests indicate they are closely related.
In the patriarchal society, women did noticeably worse on spatial reasoning. In the matriarchal society, women and men did about the same.
The authors carefully do not overstate their results, claiming only that they demonstrated that culture influences spatial performance "in the task that we study." However, this promisingly suggests quite a bit of room for improvement of measurable aspects of intelligence may be feasible with proper attention to culture and nurture.
What measurable aspects of intelligence do you attribute to genetic causes? Can you test it this well? How would you fix it and help people be all they can be?
News coverage: ArsTechnica.