http://www.sciencedaily.com/releases/2015/11/151119160517.htm

This is a problem in human social and linguistic intelligence… not merely physical routes. We will make terrible choices simply to avoid conflict. You’re seeing something about all of our communications activity here. Especially electronic social media, and more especially: facebook.

These activities instruct and coerce not only our actions, but the nature, functions and activities of our minds, public and private.