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ChristianKl comments on Open Thread, Jul. 13 - Jul. 19, 2015 - Less Wrong Discussion

5 Post author: MrMind 13 July 2015 06:55AM

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Comment author: ChristianKl 15 July 2015 11:11:04PM 2 points [-]

Do you have a source for "natural tendency for humans to be less attracted to close relatives than to others"? I am interested.

One mechanism is the MHC complex

There are other mechanism that prevent siblings that lived together as children from developing romantic interest in each other as well. As a result most cases of incest between siblings are not by siblings that lived together as children.

Comment author: Elo 15 July 2015 11:24:51PM 0 points [-]

That has impressive applications on why foreigners or "exotic" people have a bonus placed on them for desirability. I must say I did know about MHC mechanism, and the studies done on birds, but not the human one. Also I did not connect the two.

Thanks!

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