[Porsche-O-Phile]

You're bringing up a phenomenon known in philosophical circles as "God of the Gaps". I really suggest Googling this phrase - there is a tremendous amount of material written on the subject. FWIW I'm a huge believer in this phenomenon and believe that one day we WILL understand many of the things that are currently "mysteries" to us - creating (in the minds of some) a necessity for divinity.

It wasn't all that long ago that notions of understanding the sun or the wind or eclipses or tidal waves or rain without resorting to "gods" would have been considered absurd. In this same manner, I believe that the things many currently consider "unsolvable" problems (without involving a god or gods in the explainations) will similarly be solved. Things like proof of the existence or lack of existence of an afterlife, why the Virgin Mary appears as a salt stain on the underside of a highway overpass (or in grilled cheese sandwiches, if you prefer), the origin of the universe (what caused the "Big Bang"), the nature of time and matter, evidence of man's global-scale impact on the environment (global climate change), stronger proof of evolution (fossil record, etc.)

The mechanisms of their solving and understanding probably are either unconventional or beyond our ability to conceive at present, so the weak-minded dismiss them as "impossibilities" and quickly resort to mythology.

God? Religion? I submit simple control, power, secular agendas and a smattering of trying to infuse some nobility into the notion of human existence as reasons. A recipe for some wonderful stories - and some terrible deeds.