Can low IQ populations climb the civilisation development ladder? Some evidence points to a non-linear correlation, a sort of floor effect of IQ correlations at the bottom of the spectrum Overall progress seems to barely change from the bottom IQ until a certain point, then the trajectory exponentially increases. Civilisation has a standard for its advancement, and if a society isn’t equipped with the essentials to facilitate these basics, such as the consistent employment, codes of respect and establishment of the rule of law, then their potential to not only become prosperous, but to even grow in any shape or form becomes very difficult. An example is NAP theory, which holds that markets can only function and operate in their intended way, if the rule of law prohibits those that intend to disintegrate the consensual arrangements necessary for free market trade to take place via monopolistic/violent force People can only be free to operate, if they are protected from others restricting said freedom, and only then can society attempt to actualize the benefits associate with market freedom This explains the thousands of years of stagnation in sub Saharan Africa