"Ability, Heredity, and Race."
There's nothing unusual about dismissing race as social construct. Racism watchdogs do it all the time. But they do it precisely to deny hereditary differences between blacks and whites. The authors of this study are affirming hereditary differences. That's what they mean by "survival fitness in different parts of the globe during thousands of years." Evolution in Europe and evolution in Africa produced different results.
Lose the Race: Can a black-white performance gap be hereditary but not racial?
By William Saletan
"Anthropometric measurements of large populations show that systematic differences exist among blacks, whites and Asians. The published evidence is massive: blacks have longer limbs than whites, and because blacks have longer legs and smaller circumferences (e.g. calves and arms), their center of mass is higher than that in other individuals of the same height. Asians and whites have longer torsos, therefore their centers of mass are lower.
These structural differences, they argue, generate differences in performance. Using equations about the physics of locomotion, they analyze racing as a process of falling forward. Based on this analysis, they conclude that having a higher center of body mass in a standing position is advantageous in running but disadvantageous in swimming.
The authors of the original article go on to discuss the meaning of performance differences among different groups, while trying to avoid being racist. It's such a fine line, Im curious about what free-thinking people will think. Where is the line between acknowledging that different sorts of traits and talents may accumulate more in some populations than others, vs. being racist, vs. falling into what some would call liberal political correctness (sorry if that term offends,please give me a better one if that's the case) to avoid sounding racist?