>I was speaking entirely within a historical/social context. Psychologically   
   >speaking, relatives makes sense, the further back you go the more   
   >sense it makes. Family heavily influences our idea of attractiveness, for   
   >example, with a lot of people marrying someone like their mom. Well,   
   >who's more like mom than a blood relative of hers?   
      
   This theory does not pan out on observation.>   
      
   Research in israeli kibbutz found that those children raised communily did   
   not marry.  The childreen ate, slept, went to school etc. as a group   
   regardless of gender, just like one large family.  Parents often saw their   
   children only at the communal meals .   
      
   They would go outside the kibbutz to find a marriage partner.   
      
   Intense daily closeness detered interest as a marriage prospect.   
      
   Even in first cousin marriage with separate households, the degree of daily   
   social closeness is not enough to trigger this response.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)