AB,
The fact that there is a natural explanation for how certain things work does not lead to a conclusion that there must be a natural explanation for everything. Supernatural can be used to describe events which are not pre determined by physical material reactions, but determined by other means outside the otherwise physically pre determined chains of cause and effect.
It’s just after dawn, the mist is clearing with the promise of a lovely day to come and our two Viking characters are engaged in conversation…
Eric: So Sven, I hear you’ve been having some success with predicting the weather.
Sven: Yeah, it’s really good actually – I look at the clouds, the tides, the changing seasons and so on and quite often I can figure out more or less what tomorrow’s weather will be.
Eric: Sounds pretty good, but it can’t explain every bit of weather can it? Take thunder for example, what does all that dried seaweed stuff tell you about that then?
Sven: Well, a fair amount as it happens. Certain shapes of clouds, torrential rain and strong winds combined often co-incide with thunderstorms so clearly there's a strong correlation between…
Eric: Yeah yeah, but you don’t actually have every detail of what causes thunder worked out yet do you? DO YOU?!
Sven: Er, no – but it fits within the naturalistic paradigm I’m just expl…
Eric (with fingers in ears): NOT LISTENING! NOT LISTENING! If you don’t know the answer, then it must be Thor then mustn’t it Mr Marty Pants?
Sven: Thor? What do you mean by Thor?
Eric: STILL NOT LISTENING! THOR! THOR! THOR!
Sven: But Thor is just a word, it’s white noise that explains nothing at all!
Eric: Pah, there you again with your presumption of naturalism. What about my Thor belief then – answer that if you can!
Sven: Er, but isn’t that just the argument from personal incredulity again: “I can’t imagine a natural explanation for something, therefore an unqualified assertion of the
supernatural must be the answer”?
Eric: THOR! THOR! THOR!
Sven: Oh FFS!