Check this out from Saletan
Few genes are known to be decisive in determining life outcomes. Nutrition, training, and other genes matter. But the evidence that this gene significantly influences athletic ability is strong.
Now look at the frequency of the R and X variants in different populations. According to data published seven years ago in Human Molecular Genetics, the relative frequency of the X allele is 0.52 in Asians, 0.42 in whites, 0.27 in African-Americans, and 0.16 in Africans. If you break out the data further, the frequency of the XX genotype is 0.25 in Asians, 0.20 in European whites, 0.13 in African-Americans, and 0.01 in African Bantu. Conversely, the frequency of RR (the genotype for speed and power) is 0.25 in Asians, 0.36 in European whites, 0.60 in African-Americans, and 0.81 in African Bantu. Among Asians, you can expect to find one RR for every XX. Among whites, you can expect nearly two RRs for every XX. Among African-Americans, you can expect more than four RRs for every XX.
Is the order really so shocking, or just another confirmation of the Rushton scale.
I've had my share of arguments with people who deny that race is biologically meaningful. Many of them are dedicated to the proposition that all humans are created equal, not just in the sense of moral worth or treating each person on his merits, but literally, in the sense that no genetically based difference can be admitted in average ability between populations. That kind of egalitarian literalism—I call it liberal creationism—becomes harder and harder to sustain in the face of evidence such as the data on ACTN3.
Oh, it's sweet.
I just returned from traveling in a third world country with little prospects for the future, and the primary reason is that their people have too low IQ to develop meaningful industries that don't rely on natural resources or low salaries.