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.
"Time is what prevents everything from happening at once" - John Wheeler