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sofar55 t1_ja9g013 wrote on February 27, 2023 at 8:40 PM

Reply to comment by UniversalAdaptor in Eli5 Help, please my brain hurts. If there is an expanding ring of light from the big bang, what is outside it? by ExtremeQuality1682

Wait, how do we know it's "several times" bigger than the observable? I haven't seen anything to reference the actual size of the entire universe beyond observable.