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Most Human Genetic Variation Lies Within Populations, Not Between Them

The structural fact that constrains every group comparison later in the path. Without it, a reported frequency difference between labelled populations reads as though the populations are distinct kinds, which is the error section F has to undo.

Questions this Concept answers

Why does that structure make a population label a poor guide to an individual's genotype?

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Why Do Humans Look So Different If We're All the Same Species?

Human phenotypic diversity (skin color, facial structure, body proportions) arises from a combination of natural selection acting on climate-related trade-offs (e.g., melanin's protective-versus-vita…