Actually, I am not questioning the metaphor of the balloon. I am questioning the idea that an explosion, even one as massivee and incomprehensible as the Big Bang, has to expand from a central point.
Seems to me that you are questioning the idea that the Big Bang did
NOT expand from a central point. Not expanding from a central point is the main stream idea. You seem to want a central point inside the balloon.
I suspect that one source of confusion is that your question assumes a geometry of space at the time of the explosion, which may not have existed given that space and time were created in the Big Bang.
But everyone always bases everything on the presumption of the Balloon Metaphor.
The metaphor is used to explain what our understanding and is not the basis of anything. The universe as viewed from our vantage appears as if we are the center of everything. But it also seems that the same thing is true from other view points. The balloon is used to show how such a thing might be. Other people like to use a raisin cake rising in an oven.
Edited by NoNukes, : No reason given.
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