The Mechanistic Roots of Occasionalism: Stage One
What is Occasionalism?
Occasionalism is the doctrine about causal efficacy that exploits the non-observational nature of causation. We observe a prior and a posterior state of the universe, and discern the difference between them. But we cannot observe the force or power causally necessitating the change.
Benjamin Hill, Henrik Lagerlund, Todd Ryan, and Elliot Rossiter. "The Mechanistic Roots of Occasionalism: Stage One". Research Day (Arts & Humanities, FIMS, and Education). The University of Western Ontario, London, ON, Canada. Mar. 2012.