One True Cause: Causal Powers, Divine Concurrence, and the Seventeenth-Century Revival of Occasionalism by Andrew R. Platt [Book Review]

On an old narrative, dating back to Leibniz and developed in nineteenth-century historiography, occasionalism was revived in the early modern period as an ad hoc response to the problems of mind-body union and interaction arising from Descartes's metaphysics. According to Leibniz, Descartes gave up the struggle, leaving his disciples to iron out this most scandalous of wrinkles in his system. A line of followers—Clauberg, Geulincx, La Forge, Le Grand, Arnauld, Cordemoy, and above all, Malebranche—dusted off the discredited doctrine of occasionalism in order to deal with the question of how unextended minds could interact with extended bodies. Plainly stated, the solution was as dissatisfying to Leibniz as it has...