For Every Action…

(Don Boudreaux)

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… there is an equal and opposite reaction.

So says Newton’s Third Law of Motion.

What is true in the physical world is very often true also in the social world. Extremism on the political left causes extremism on the political right; extremism on the political right causes extremism on the political left.

Extremism and zealotry now reign unreined on opposite sides of the ideological spectrum. I am pessimistic.