One need only look at any scientific field, such as medicine for instance, to realize what complete idiots the human race are. Constantly are longstanding theories and procedure, which by the way have supporting scintific data behind them, are changed in the face of continuing research and evidence. I could provide examples but that's hardly necessary and it permeates all scientific fields.
So because the Big Bang Theory is backed up by supporting evidence, there is no possibility of the interpretation being somehow wrong, even though there is an impossibility of determining whether all of the relevant data has been obtained, and most likely hasn't? What about the research into string theory that indicates the big bang was caused by the collision of two higher dimensional strings, one of which being our universe, yet still can not intrinsically explain what caused the discharge of energy that created the big bang in the first place. Where are your immutable facts now? So please, stop pretending like your scientific "facts" somehow make your position more relevant than someone elses.