Selection pressure for high as well as for low levels of intelligence in modern Homo sapiens

Under construction

In the previous chapter, Self-blindness in humans as prerequisite for the evolution of advanced intelligence, it was shown that Homo sapiens is saddled with a peculiar inability to regard the own behaviour soberly and that this incapacity does have strong genetic roots, but is also amplified by cultural factors of self-blinding.

In this chapter we will discuss the probability of present day selection forces in favour of moderate to low levels of intelligence, at the same time paired to selection forces in favour of higher intelligence.

Such antagonist selection forces favour a high spread of the (general) intelligence level.

Since the beginning of the agricultural revolution brain size in Homo sapiens has not increased, but has significantly decreased. This is quite remarkable and goes counter to common sense and highly cherished notions of Homo sapiens evolving to ever higher levels of achievement and capacities.

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