I am going to say something unpopular.


  The vast majority of people do not think.   This sounds offensive but let me explain a bit. 

Humanity is extremely good at a couple of things.  One of them is Mimicry ..  in short simple terms  monkey see monkey do.     

This also applies to thought.   We can grab other peoples idea and though patterns for ourselves  FAR cheaper And easier then thinking up something on our own.  so most people don't think. (the unpopular part)

We Grab Other peoples Ideas And use Them As Our Own.  The Good The Bad And The Ugly.

The downside of this is bad ideas perpetuate.  Part of this is short term good can equal long term bad.    and we all know intelligence isn't equal as much as we would like it to be.