army1987 comments on Open Thread, October 1-15, 2012 - Less Wrong

1 Post author: David_Gerard 01 October 2012 05:54AM

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Comment author: [deleted] 06 October 2012 11:38:29PM 1 point [-]

In principle, a society could frown upon parent-child incest but not upon incest between siblings, but that's not what we see, so I don't think that's a good explanation.