" none of the ways in which we talk about race today stands up to the scrutiny that genetics has enabled. Families are too untidy, human history is too convoluted, people too motile. The deck has been shuffled and reshuffled. Genetics has shown that people are different, and these differences cluster according to geography and culture, but never in a way that aligns with the traditional concepts of human races. "

― Adam Rutherford , A Brief History of Everyone Who Ever Lived: The Stories in Our Genes