Causality Causality, the law of cause and effect, is the most general law used to describe the (physical) reality. The common conviction was that causality holds everywhere, at all time and in all cases. Since modern physcics and quantum mecahnics, this concept of reality has been altered in a fundamental way, although it only applies to the sub atomic world. The fundamental question is however, if we can realy proof that an underlying material reality, not only just shows up to be acausal and indeterministic due to the way we observe it (which also means interference with the thing we want to observe) but can proof also that the material reality in nature is acausal and indeterministic. My argument would be that there is no experiment that can be performed, that could ever proof that. We only "proof" by way of our mathematical and physics models of reality, that the approach of indeterminism and probability, makes sense for practical purposes. So, this would mean we would not all by all have to give up the idea that nature is deterministic and causal everywhere and at all time. But same as in some macroscopic events, which we also think of as deterministic in nature, we will in all practical cases deal with it in a probabilistic and indeterministic way. Like for instance weather forecast, has to deal with the fact that the weather system is so complex, that we can only use indeterministic and probabilistic models. But this does not claim that the airmolecules itself would not act deterministic and causal. Although my argument is only a point from philosophical perspective, and would not change the way we deal with it in experiment, I think that the current argument that a wave function itself is indeterministic in nature, is an unprovable assertion. In fact same unprovable as the opposite, that this wave function is deterministic. The point is of course that there is no experiment that could show the difference. This means that both interpretations are both unprovable. My argument for still holding on to causality in all these cases, as a general outlook and perspective on reality, is because we have no reason to assume, and neither can proof, that the material reality at the quantum level is with respect to causality in any way different as the macroscopic reality. But the dominating viewpoint in physics seems to be, to interpret quantum events as indeterministic and acausal in nature. Is that justified?