Actually, I am not questioning the metaphor of the balloon. I am questioning the idea that an explosion, even one as massive and incomprehensible as the Big Bang, has to expand from a central point.
I am no mathematician. This is due to an easy upbringing. I was allowed to be lazy and to let my intelligence stroll along. I love my parents, but they didn't push me when I needed pushing.
Anyway, I have a great interest in physics and the universe, but it's based in science fiction, not science ability.
So, my curiosity comes from an over active imagination. I've seen many articles about the math of the Big Bang, the Theory of Relativity and the attempts to unify everything ... which I read with a mixture of wonder, interest and confusion.
But everyone always bases everything on the presumption of the Balloon Metaphor. I've never seen anyone working on an explosion model. Even in the act of exploding, if we inhabit a small enough region of that explosion, the observations would be what we see. But the scales used to determine the age of the Universe, etc. would be completely different than what is now used.
I am not disagreeing with the current models ... just postulating a different one.
evidence over faith ... observation over theory