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Mills' mother is aboriginal Australian, his father a Torres Islander (ultimately Papuan). As far I know the greatly superior speed of indigenous Australians/Papuans is not widely appreciated but they may be faster even than West Africans and in a totally novel fashion.
The fastest 100m time from a non-African is Christophe Lemaitre's 9.92. Second is the half-Aboriginal Patrick Johnson's 9.93. That's not bad considering there are 1,000 white people in the world for every one aboriginal.
