More like severe maniac-like love addiction.
^This! XDD so true back then people didn't cared if you had children or anything with your brother or sister
-perhaps because their religion didn't made this a tabou (i'm saying we should be like them i'm just trying to find possible answers).
-or to keep bloodlines more ""pure""
-or they just didn't cared and obviously didn't knew that the children would be more prompt to develop diseas..
Anyway fact is their way of thinking was transplanted into their religion
Can somebody spoil me why Seth was raped by Osiris and Horus?