The Unsuitability of Spinoza's Monotheism for Understanding Quantum Mechanics

Since the advent of quantum mechanics in the twentieth century, it has become clear that the classical metaphysical framework in which natural science was understood for centuries is under serious pressure. The deterministic and rational worldview of Baruch Spinoza (1632-1677), in which God and Nature are one substance that unfolds according to necessary laws, offers a majestic system of order and unity. Yet, it is precisely this monotheistic way of thinking that proves to be fundamentally unsuitable for understanding the reality of quantum physics.

Quantum theory confronts us with phenomena like superposition, probability, uncertainty, and a radically new role for the observer. This stands in stark contrast to Spinoza's assumption that everything follows from substance necessarily and rationally. In this essay, I argue that Spinoza’s monotheistic metaphysics is inadequate for understanding quantum mechanics, and that alternative traditions of thought—such as the mystical theosophy of Jacob Böhme, the process philosophy of Alfred North Whitehead, and the contemporary relational physics of Carlo Rovelli—prove more fruitful.