[RascalPuff]

As I recal the original balloon analogy is superceded by a modification introduced by Dr. H.P. Robertson, of Cal Tech. He converted the spots on the balloon to glued on raisins so as to dispatch with any misunderstanding that the spots themselves - representing matter - would not be confused with the expanding space. I happen to think that the physical universe is expanding with the spatial universe and the Steady State theory that corresponds with that viewpoint.

I see neither a beginning nor an end to the expanding universe, and, the evidence that the expansion is accelerating continues to stack up on the desks of the editors of the Physical Science journal and Scientific American, etceteras.
An accelerating universe is not a signature of a big bang, but, rather, a signature of a physically and spatially expanding universe, where the center is everywhere. The last sentence in the recommended reading - all of which I did read - says:

Our ignorance about the real answer to the question "Where is the centre of the universe?" is complete.

Thank you, Baud, for posting this important and accumulatively interesting issue.

I think that the abandoned Steady State and Cosmological Constant factors will be reinstated.
Respectfully,
- RP