I think pork is a very good example. In Europe, you can see millions of Jewish people or Muslims that consider pork "unclean" and don't eat them; just like we c

I think pork is a very good example. In Europe, you can see millions of Jewish people or Muslims that consider pork "unclean" and don't eat them; just like we consider rats "unclean" and don't eat them but eat pork. It really doesn't make sense to think that there is single "inherent" way how people think about food.