Religion
In reply to the discussion: "One person's myth is another person's religion" [View all]Silent3
(15,190 posts)...but that doesn't make the theory itself a myth.
That the observable universe likely emerged from a very dense and energetic small point billions of years in the past, a point which rapidly expanded outward to create the universe we see today, is pretty well established by physical evidence, from consistency of patterns of red shift to the temperature and distribution of cosmic background radiation. The Big Bang is much more than just "a story our people tell".
Whether or not there is such a thing as time before the Big Bang, whether there are multiple "universes*", whether or not the universe cyclically contracts and well as expands, etc. -- those unknown details do not turn a solid theory into a mere myth. Good theories lead to good questions. The presence of those good questions is not a failing that turns theory into myth.
*By a weak definition of the word "universe". By a strong definition of "universe" the "uni-" part means that there is only one, and that anything for which there is more than one instance, anything which can be said to be contained within or exist alongside another thing, those things are then parts of a larger universe.