oh Thorne i dissagree sir,
it is the very questions that each religion is attempting to answer in its own way, by each religions begining its birf and subsequent struggle often over a long period of history to formulate its dogma,, (much like science)

just because the big three (christians, jews, and muslims) claim to whorship the same god, doesnt mean the rest of the hundreds of religions do so, nor does it mean that all of thier answers/ questions are written in stone,, i just mean that the proccesss of questions brings new religions to the scene in thier own attempts to answer and or ask the questions that previous religions did not or failed to answer specifically enough,

if there is some asscociation between thier dieties, mabey its because they have come to a consences of sorts, much like scientists do, like: most all scientists now days agree the wolrd revolves around the sun, where as in the past they did not

new religions and belief systems are developed all the time, some in very recent history, new sects of christians etc too, look at the new angelican church with its recent break from the old order on the question of homosexuals in the church, or look at the scientology, a very recently developed religion, or for that matter the new age wiccan movement, or even my own religion bahai, another (relativly new arrival historically speaking) thier are also many differential differences in hindu , buddist and shinto beliefs complete with on going rivalries etc.

as for the experimental side of religion, we each and everyone of us preform our own experiment as we live our lives, even if you choose to be an athiest you are part of the religious experment, (mabey as a control group lol)
case in point, i am born jewish, yet raised lutheran, but studdied budism and still practice its tantric sects forms, while embracing my faith in bahai,

we are each like ongoing religious experiments, some mutat or change one form for another others stick to the status quo of thier upbringings and yet others choose to reject the concepts of divinity

i agree it seems as if most religions appear to nopt be asking questions, so much as saying this is how it is,, but each time a new sect forms or a entirely new religion forms it does indeed attempt to answer the questions that its predessesors asked etc often building on thier work, as for proof, we could argue all day about recordable proof of the divine, i know some buddists that have no problems with the idea of a diety and or science co existing

i will however agree that at least in most cases regaurding religion without that "leap of faith" exposed by Keirkagaurd , all yu have is speculation

does a divine being exist? we could argue all day,,,,,,,allmost as much as i would argue with you that a single asteroid didnt destroy the dinosaurs