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Originally Posted by slayda
I'm curious as to the other reasons. I know that most religions teach it is wrong and even non religious moralists believe it but other than someone in authority saying it is wrong (which was most probably based on the afore mentioned genetic defects) I am not aware of any "other reasons" for incest taboos. There have been some cultures in which it has not only not been taboo but was expected. E.g. some of the south seas islanders, the Egyptian Pharaohs, European nobility.  |
Cultural rigidity. With no source of outside ideas, (and new people bring new ideas) ideas, methodologies, and concepts tend to become limited and unchanging. When the environment changes, for whatever reason, the incestual group will be at a disadvantage.