I can understand why someone might think that zero minus 8 is zero. But that doesn't mean its true.
Now, what I said about metaphysics, thats just a FACT. Its not a belief. The fact is the only way to explain everything is to posit God. My belief is that God exists. See, it would also be logical to say that I believe things are unexplainable and that would not contradict the fact that the only explanation is God. I would just be choosing to believe that there is no explanation.
Now, heres the crux= you can say this caused that, but what you mean is that you saw this precede that, causation is something you did not witness, something you cannot witness, but nonetheless you still have "this" (which preceded "that") to account for. What preceded this? And so forth. But yet, its irrelevant because all we can witness is effects, a mechanical sequence, the cause for the motion of sequence, that original and ultimate prime mover, that is something that even if we see an event without precedent we still cannot speak on for we have not witnessed it.
Causation, origin, metaphysics and the entire universe and every happening inside of it... ultimately, there is onle one possible explanation, which is GOD. Glory to God
You raise an interesting point about causation i.e. correlation doesn't necessarily mean causation. However scientific research (or at least good, legitimate scientific research) uses specific study designs and mathematical analyses which aim to show causation. For example removing confounding elements.
Many studies don't show true causation between variables - but this is okay as long as it is flagged and noted. We can still learn and make predictions from observing correlations that occur naturally - the essence of science is in attempting to test these predictions and prove whether causation does occur. It is a difficult, tedious process and every question that is answered likely leads to many more questions.
But I don't see how you can say that we can't witness or prove causation (at least with reasonable certainty). If somebody punches a hole in the wall, the variable that caused the hole is the punch. That is causation.