And you have the genes to beat a prime Mike Tyson in boxing? If you trained til you were 20 and you were fighting a Mike Tyson who trained til he was 20 he’d whip you in boxing probably 999/1000. That’s the difference in genetics. And for some populations you can say their genetics provide a definitive advantage in certain physical activities, even if medians or means are the same, at the outliers.
The linked paper about the tribe in Kenya with regards to distance running is an excellent example that is as close to proof as you can find without being able to control for all variables in humans.
John Mace is just being silly. Noone is obligate to provide definitive proof where it does not exist. Yet we can be fairly certain, i.e. 99.999999% that since sport relies on the physical body interacting in the physical world, and that humans are in no way supernatural and are constrained by the laws of physics that biology has an impact.
Again, in the year 2015, there is not one starting non-black NFL cornerback. If outcome were solely based on the culture of participation we would not have that result, nor the dominance of whites as centers. We’d have equal numbers in each position since biology is obviously of no factor. Unless it’s the culture of whites all of sudden to focus primarily on being an NFL center as their means of escaping poverty. Nah, white culture says “NO!” to being a receiver or a cornerback. Such an undignified position, but center yeah. That appeals to us white guys. The 100% cultural argument fails when examining football alone.
Regarding the Kenyan runners. Here’s another link. How One Kenyan Tribe Produces The World's Best Runners : Parallels : NPR Though NPR is probably some crazed, racist source and you might want to take it with a grain of salt.