A redated post.
It is sometimes said that supernatural claims are unfalsifiable, while naturalistic ones are falsifiable. I don't see how this argument can be defended. First of all, we need to have a clear idea of what it is that makes a thesis supernatural. What is the supernatural?
But suppose we have such an idea. What does it take to falsify something? If what we mean is that the evidence logically entails the falsity of the thesis. That's a standard that would make every claim unfalsifiable. It's always possible to "fix" a disconfirmed theory to fit the evidence.
Falsification occurs, according to another definition, when all well-informed adherents of the thesis admit that the thesis is false. That is more plausible. But it seems to me that we could reach a situation where all well-informed defenders of a claim give up, whether the thesis is supernatural or natural.
It may be the case the well-informed people may find it harder to give up when religious beliefs are at stake. But how does supernaturalism render claims unfalsifiable?