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In reply to the discussion: Ancestral home of all human beings discovered by scientists [View all]certainot
(9,090 posts)because of sex on the wrong brain.
long before this we evolved divided brains. there is also evidence that human ancestors started off 50-50 right and left handed and eventually about 100,000 years ago became 90% right handed. there are various theories for this and the sowb theory suggests it was related to masturbation. the right handed masturbators were diverting sexual urges through parts of the brain used for quantifying, which increased greed and favored competition over cooperation, and parts of the brain often associated with language and logic, and that produced a need for finality, premature conclusion, closure, certainty. in an infinitely complicated universe full of uncertainty that increased fear. in times of scarcity and conflict those sex on the wrong brain characteristics provided a survival edge to right handers. even a small 'advantage' could increase over generations as they selected for particular brain structure that accentuated preferred symptoms of sowb. it got really bad the last few thousand years when we began to delay the age of reproduction. now 90% of humans, especially males, generally may have an increased susceptibility to authoritarian tendencies, with some human genetic lines moreso.
in hard times and in the absence of democracy, fear, suspicion, ignorance, authoritarianism, competition, and lack of empathy would win over curiosity, imagination, cooperation, etc.
columbus meets the natives, for example