“...there is no apparent benefit to dwelling on the IQ gap.”
That was my reaction when that Shockley article came out ages ago. But lately it’s been argued that any selection process that doesn’t mirror national demographics must be racist or sexist or phobic this or phobic that. So we’re forced to examine whether it’s true that any arbitrary grouping of people is going to have the identical abilities of any other one.
Who is dwelling or obsessing on the difference? It is cut and dried both empirically and quantitatively.