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1) I'd take these findings with a big grain of salt:

http://www.stat.columbia.edu/~gelman/research/published/kana...

2) I'd be very cautious about interpreting causality, even if the results are true. Beauty is influenced by environmental factors (diet, exercise, health care etc.) that are correlated with parental and own-income. Some of these same factors also influence intelligence. There's a decent chance this research boils down to "being poor sucks."

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IQ also correlates with diet, exercise, and health care.

PS: It's not that these things boost IQ or Beauty. Instead it's their lack is what reduces attractiveness and IQ. Basically, take an IQ test while tired, sick, and starving and you will do worse. Also, the average young, healthy, and physically fit person is reasonably attractive.

I won't believe in those findings until I see a correlation of beauty/IQ and family income.

I've never seen a person that grew in a rich family be downright ugly.

Cross-breeding in European nobles can produce people that are, by birth, both atrocious and rich.

Otherwise, you'right, for obvious evolutionary reasons.

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