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stiephelando@discuss.tchncs.de ⁨1⁩ ⁨day⁩ ago

That article doesn’t support your argument. The effect isn’t based on relation but on being raised together before the age of 6.

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chicken@lemmy.dbzer0.com ⁨1⁩ ⁨day⁩ ago
Well yeah, but that is still “biologically ingrained to avoid incest”, since being raised separately and then reintroduced as adults is an edge case. The effect is biological even if what it’s directly testing for isn’t genetics.

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- njm1314@lemmy.world ⁨1⁩ ⁨day⁩ ago
  No, your arguments about cultural and learned behavior not biologically ingrained Behavior.
  
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  - chicken@lemmy.dbzer0.com ⁨1⁩ ⁨day⁩ ago
    From the above linked article:
    
    In the case of the Israeli kibbutzim (collective farms), children were reared somewhat communally in peer groups, based on age, not biological relations. A study of the marriage patterns of these children later in life revealed that out of the nearly 3,000 marriages that occurred across the kibbutz system, only 14 were between children from the same peer group. Of those 14, none had been reared together during the first six years of life.
    
    And lots of other examples across different cultures that would be consistent with this being an instinctual reaction of humans, rather than a cultural thing that is taught.
    
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    njm1314@lemmy.world ⁨1⁩ ⁨day⁩ ago
    How on Earth do you think that reflects a biological imperative? If anything doesn’t it suggest the opposite? A biological connection resulting in an aversion to coupling would mean the absence of a biological connection should not result in aversion. Yet your example showed that the biological connection was not a factor at all.
    
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    ICastFist@programming.dev ⁨20⁩ ⁨hours⁩ ago
    That quoted paragraph is a pretty clear indication that the “instinctual reaction” only happens with people you’ve lived with up to the age 6, which isn’t exclusive to people you’re related by blood. Hell, the following wiki paragraph makes that clear:
    
    In Shim-pua marriages, a girl would be adopted into a family as the future wife of a son, often an infant at that time. These marriages often failed, as would be expected according to the Westermarck hypothesis.
    
    So, if you don’t grow up with your siblings during those formative years, or see them only on occasion, it is expected to be attracted to them, as per that hypothesis. It’s also important to note that marriages aren’t a simple matter of choosing whoever you like most, there are social and economic considerations to be accounted for.
    
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