You see what I CAN show you is that the entire realm of science is based upon founding principles which we estimate are correct but have no real hard means of testing if they work outside of our own paradigm. I mean who's to say that this gravity being you all allude to is omnipresent? What proof is there that on a remote planet it doesn't exist at all? of course we have no evidence to make us believe that but also we have no perfect refutation of the concept either. Something which scifi plays on quite a bit.
I think it was a kind of Popper idea wasn't it that if something isn't refutable then it's not true or not useful or something wasn't it? Well you can't test the foundations of our beautiful construction which is science without stepping outside of it. How is it not so for religion? I mean this self affirming ideas are quite prevalent but to assume that no one can try to affirm or deny them from outside of that system is basically walling off certain avenues of inquiry for no good reason. If someone said to me that they wanted to see if the MBTI applied to fish then I may think them odd and may well ignore most of what they say but if they came up with some kind of result which threw light onto the MBTI as it pertains to humans then I would listen intently (note I wouldn't necessarily agree or take it on board but I would consider their thoughts). To do otherwise is both arrogant and unwise [note that statement is made specifically in context of the story and is NOT meant as a statement about you or anyone else... no seriously].
So yes you may well say that to analyse religion from the point of view of science is a high road to no where and you may well be proven correct but by failing it reveals something previously not known. In fact regardless of the pursuit it reveals things.
Unless you already know all there is to know then you cannot know what is not known yet without it being known and therefore invalid. Ergo you cannot predict how the unknown will become known. Thus you cannot rule out any form of inquiry into any subject no matter how seemingly unrelated less you state categorically that you have some kind of foreknowledge of the unknown.
[Follow that one (See "Yes, Prime Minister" if you don't see the kind of gauntlet I just cracked on your nose ]