Another link to IQ is breastfeeding. Babies who were breastfed have 3-5 higher IQ points than those who were formula fed. There was a push for formula feeding around the same time rates started declining. Interesting topic, but you probably know all about that.

There is wisdom in what you say about a shake up being required before new information can be accepted. Although I wonder if some minds are too fragile or set in their ways to ever be reached. Thanks for the discussion.