I can't view the video but since Pinker is mentioned in other comments I assume ...

		arctangent on Nov 25, 2019 \| parent \| context \| favorite \| on: The violence paradox: Is violence actually declini... I can't view the video but since Pinker is mentioned in other comments I assume it is a summary of this (not yet read) book on my bookshelf: https://en.wikipedia.org/wiki/The_Better_Angels_of_Our_Natur...