18. Quantum mechanics and common sense

The results of the prior section have very inter­esting consequences that transcend DM. It should be possible to make a continuum model of the same result, by using an integral that has a func­tion (or variable) that switches back and forth between two states, infinitely often. An equation of physics that is microscopically reversible man­dates a different concept of causality than what we are used to. Any such system that has been al­lowed to evolve from a distant initial state, has causality in all directions! This means that we cannot construct an experiment with one part causally isolated from another. This difference in the concept of causality leads us to hope that one might not need to separate the results of quantum mechanics from simple common sense.