Anyway, yes, I do get to decide that we limit the rules of society to what can be experienced in the natural world. The conversation is absolutely meaningless if the "supernatural" carry any weight. There's no reason. There's no logic. Anyone can assert anything if that person claims he or she believes it hard enough. So yes, there a ground rules: we stick with what is demonstrably real.
Has nothing to do with a moral superiority--it has to do with wanting a rational conversation. The supernatural is by definition irrational. Again, in using that term supernatural, I do not concede in any way that any such thing exists.
“The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.”