When is a supernatural explanation better than a natural one?
There's a drinking glass on the counter. It's empty. It was previously full. How did it become empty?
Did the liquid get transported to another dimension by a demon?
Did the liquid get poured out into another receptacle? Was the glass emptied because someone drank from it? Did the liquid evaporate because it sat untouched for too long? Was our initial observation of the glass incorrect, and it, in fact, never contained liquid in the first place?
Which explanations are the most plausible?