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Here's a thought .. perhaps what we're saying here, is that from today's observations, it is not possible establish a geometric centre of the universe.
This doesn't mean that at the instant of the Big Bang, the universe didn't have a geometric centre. After all, the theory points out that it was very small. However, all of the text I've read is also very careful to point out that we still don't understand much about the very early phases of the universe.
I think Brian may have already mentioned this, also.
So, it would only be speculation to talk about when the universe may, (or may not), have had a geometric centre. But it may have been possible, maybe even probable .. who knows ?
I have read that they have shown that it is possible that things may have been very chaotic in the very early stages (blue & red shifts randomly distributed).
Following this rationale, the points Brian is making seem reasonable.
Comments welcome .. this discussion, (being a different one to where I was coming from originally), however, is all very speculative.
Cheers
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