Another objection to the cause-law principle comes from the state of contemporary physics. According to quantum mechanics, it is not simply difficult or impossible for us to state such laws for quantum phenomena. Rather, quantum theory appears to entail that determinism fails to obtain at the level of microparticles. What the theory and the behavior of such particles tells us is that causation, at least at the level of micro phenomena, is indeterministic. And this indeterminism is claimed to be