Let's look at the root word. "Natural" does not mean "familiar" or "understood". It just means that it's a part of the physical world we inhabit. Conversely, th

Let's look at the root word. "Natural" does not mean "familiar" or "understood". It just means that it's a part of the physical world we inhabit. Conversely, the "supernatural" is what exists beyond the physical world we inhabit: it's not real by definition. This is all a semantic disagreement and not a question of hubris or overconfidence or of how advanced our knowledge really is.