Quantum+Mechanics

The ideas of Quantum Mechanics appear to be what Lewis is talking about in Miracles 3.2 and 3.3. Randomness is an idea that has questionable underpinnings in the sense of having obscure ontological meaning. Random may merely mean the appearance of chaos or unpredictability, or it may mean the reality of chaos and unpredictability. If it is truly lawless then Lewis's notion of Subnature comes into play since it becomes something outside of our usual view of Nature. Miracles 4.4 "Newtonian atomism was much more the sort of thing we expected (and desired) than Quantum physics."