Relativity of simultaneity VS comoving size of observable universe

Oct 31, 2022
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How can anyone say something is comoving if Einstein's Relativity of simultaneity is true?

i hear this word used when describing the size of the observable universe.

They say its 94 billion light years across because we see where the light was 13 billion years ago and it has expanded since.

but that's not true, we see the light AFTER space has already expanded for 13 billion years.

wouldn't that make the universe much smaller?