True, Bill, until about a decade ago it seems to have been scientifically acceptable to assume that there could not have been a pre-Big Bang time. That's certainly not the case now.

Rev, while I respect your intention to express the current understanding of cosmology researchers as a modern mythic story, my objection would be that myths, as we all know, tend to become sacrosanct. Such a mythic story as that which you propose could thus become an impediment to the very science from which it arose. Fortunately, scientific knowledge isn't written in tablets of stone.
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"Time is what prevents everything from happening at once" - John Wheeler