Although it's true that each smart gene has a small effect, Gottfredson says, even tiny boosts in IQ are significant.

确实每个聪明基因效果都较小，戈特·弗莱森说，但是，即使智商有一点点的提高也是有重大意义的。

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"I've certainly been in the 'hoping for a slowdown' category, but over the last week or so I think the psychology has shifted so I'm going into the recession category, " Mark Gottfredson of financial strategists Bain and Company told CNN.

CNN: Recession fears stalk Davos meeting