Up with the binarchy

"Recognizing valid differences between two elements of a system is not to 'dichotomise.'  Some people fear dichotomies are simplistic.  But it is also simplistic to reject a perfectly valid dichotomy just because you happen to have a thing against dichotomies when they occur."

     Iain McGilchrist, "Preface to the new expanded edition," The master and his emissary:  the divided brain and the making of the modern world, New expanded edition (New Haven, CT:  Yale University Press, 2019 [2010]), xvi.  Undoubtedly I'm misusing McGilchrist prematurely.