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Originally Posted by Taibak
True, but 'very close' is a relative term. What kind of proximity are you talking about and how would that affect galactic evolution? Whether we're talking about an explosive event or spacetime expansion, we still have to account for the early universe being very hot and very dense - too hot and dense to allow gravity to form galaxies.
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I, personally, don’t have any idea.
In the 1980s and ‘90s it was common for science writers to say “a point” or an object so small it didn’t even exist as we know things to exist today. In the 1990s, Dr. Robert Jastrow told me he thought the expansion began from an object that was about the “size of a basketball”.
In 1933, the British Astronomer, Arthur Eddington, said, “Initial radius of the universe before it began to expand = 328 megaparsecs = 1068 million light-years.”
But me, personally, I don’t know.
I think that right now, not too many science writers are talking about the beginning or the earliest “size” of the universe.