Opposite features on the same coin
Asians: neotenous, robust with small features
Africans: neotenous, soft-faced with broad features
Caucasians go for Asians (because they have smaller features and robust bones), Africans go for Caucasians (because they are more dimorphic than Asians) Asians must go for Africans (because they are neotenous and physically dimorphic)