The document discusses the concept of race and how it has no biological basis. It notes that all humans are 99.9% genetically identical and belong to the same species. While there are no meaningful biological differences between human populations commonly referred to as "races", socially race has been used to create hierarchies and justify discrimination. The concept of race was historically promoted by scientists to argue for the superiority of whiteness, though it is now understood that race has no grounds in science or genetics and was socially constructed to exert power over non-white groups.