The following is a guest post by commenter Mephisto:
Too many “Arm Chair Internet Geneticists” and “Know Nothing HBDers” (redundant, I know) like to use the same drivel, that is almost effortlessly debunked with irrefutable (and even entry level) facts:
Two or three years after “The Bell Curve” came out, Myerson, Rank, Raines & Schnitzler at Washington University in Saint Louis, looked at the VERY SAME longitudinal database that Murray and Herrnstein used to demonstrate this persistent IQ gap between whites and blacks. They found something Murray and Herrnstein didn’t mention.
What they discovered was that when African Americans in the US go to college, they raise their IQ FOUR TIMES FASTER than whites who go to college, and in the process close the average IQ gap between whites and blacks in half in just 4 years. This would not be possible if IQ was fundamentally related to biology, and yet it was EXACTLY (going by the very database that Murray and Herrnstein used) actually demonstrated:
So there goes the entire argument of the book, and every single related study. (I have other irrefutable ways to dismantle this book and such studies, that I could use in a heartbeat. But … that would just be pounding the red stain on the ground that USED TO BE the dead horse.)
Those who have even a pedestrian level of knowledge when it comes to genetics, and do not rely on crtl+c and crtl+v, know “the exact reason” why race IS a social construct. Not because it’s some “feel good slogan” or whatever “logic riot shield” dismissal HBDers like to prop up, to use against their opponents; but the proven fact that they like to skate around, and ignore.
Start with “Fst” (fixation index).
“Fst”, a measure of genetic distance, is a statistical measurement of the fraction of a variation found between samples.
There is substantial and unequivocal evidence that there is currently only one race, or subspecies, of human on the planet: Homo sapiens sapiens. Humans do not show enough genetic variability within populations for any given population to be categorized as a subspecies. The level of genetic differentiation required to classify a population (or group of populations) as a subspecies is an Fst greater than 0.25. Multiple studies of a variety of segments of DNA in humans clearly demonstrate that this level IS NOT REACHED in humans, even in mtDNA.
Human Fst scores average about 0.17, WELL UNDER the subspecies mark. On a molecular level where we (researchers) study and learn, this range is staggeringly wide.
It is also extremely important to note that there is not a single unique genetic marker that can be used to differentiate the “big few” races; that is, there are no Asian, Black, or White genes or alleles. Since there are groups that share multiple “core” traits with the big three, that are identical to them, on a molecular level.