Never the only factor.

But it is a factor.

I do agree though that "intelligence" is a far tricker metric than "who tends to run fastest."

Regardless, its a really touchy subject that is typically more trouble than its worth to research or write about imho.

Yet AMERICANS who are of Jamaican ethnicity typically outperform their fellow Americans who are white at the absolute top of running competition?

You can literally just watch the fucking olympics to realize your opinion is beyond flawed.

If upbringing was what decided who the top 0.01% of competitors were in sheer sports of athleticism like track, you would see more diversity. But you dont. Because when a 1% advantage decides if you win or lose then every possible factor tends to matter.

It's funnily enough more racist to me to imply that Kenyans are good runners because they "dont have gameboys" and must resort to running for fun, than it is to just acknowledge that they seem to at least on average have a sort of biological running advantage.

Now I'm sure this is some white supremacist awfulness, however...

Races have differences in terms of averages.

If people are going to sit here and try to tell me it's just coincidence that the Summer Olympics running events are dominated by Jamaicans and Africans, I am going to have to laugh.

The problem is when people use these observations of differences to assume its true for EVERYONE of that race, and to treat someone worse or better for these differences.

Science doesn't care about people's feelings, but WE should.