> Its easy to see how an animal that eats human feces could be viewed that way. Not necessarily that easy. For example, they didn't think farmyard manure was u

> Its easy to see how an animal that eats human feces could be viewed that way. Not necessarily that easy. For example, they didn't think farmyard manure was unclean but nonetheless used it to grow vegetables. My intuition is that it's easier to remember pig as "filthy", "unclean", "kosher", "forbidden" than their place in a complex and ever moving ecological system. Written record left by scholars could be deductions made about the current state of things and its lost meanings (that's actually part of my intuition).