[Omen]

supernatural by definition is anythythining unprovavable, relating to (a) God and the soul, superego I think Freud called it. It doesn't include the possibility of extraterrestrial life, or a pseudoscience like astrology. The questioner may as well ask is there anything which is unprovable, provable. It is always a matter of faith until it becomes a matter of science.

I never would have believed in telepathy, for example, until one night my brother's house was burgled and simultaneously I dreamt about it. I now believe there is communication between brains on a radio-like level.