The IQ Wealth of the Nations Solved

 

Steve Sailer's blog presents an important graph that explains the economic development of nations. Egypt was the first by much in developing civilization but it only lasted two or three thousand years. What happened? The Africans from Sudan infiltrated the country and depressed the performance of the population. Today, the Egyptian population is clearly half-African: look at the graph where it stands in average cognitive capability. The Palestinian population is about 10-15% African and it shows. Portugal, one of the most advanced European countries in the Middle Ages, was harmed by the ultramarine trade: "the highest proportion of African ancestry in Europe is in Portugal (4.2±0.3%. I stop here, because it pitches against my cognitive ceiling, as beautifully expressed by Sailer. 

The Southern Greek population (IQ around 90) clusters with Ethiopians (IQ 69) and has Subsaharan components. Apparently, they mixed in Ancient times, and in my opinion, may explain the abrupt decay of Greek civilization around 300 BC.  "The Palestinian population (IQ 84) reveals the closest genetic distance with Cretans (IQ 91) and no discontinuity is observed between Mediterranean populations. It is evidenced that Palestinians/Greeks distance is high and confirms the different genetic background of the Greeks, who have received a substantial sub-Saharan gene flow."  Now all that is to be done is to graph the correlation of % Subsaharan genes and the average IQ of a population. Prof. Lynn has already constructed a table linking population IQ and national GNP.