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A comment on Everyone on Earth is your cousin (2014). Parent comment

Re:Everyone on Earth is your cousin (2014) by featuregag on Sunday December 17, 2023 @02:42PM (#38675716)
> It is one of the reasons why 90% of human genetic diversity is within groups and only 10% is between groups.

Can you clarify what this means? I’ve heard it a bunch and I can imagine scenarios that this statement could describe. But also, a naive interpretation doesn’t make any sense.

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Re:Everyone on Earth is your cousin (2014) by danans on Sunday December 17, 2023 @03:12PM (#38675962)
It just means intra-group genetic diversity (i.e. between individuals) is far greater than inter-group genetic diversity (between populations)
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Re:Everyone on Earth is your cousin (2014) by tejtm on Sunday December 17, 2023 @03:32PM (#38676125)
Inbreeding fails to gaurentee genetic isolation/differentiation. Offspring may still have more in common with someone on the other side of the planet.
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