Feb 22, 2021 · I changed the question, included "possible infinite". but I heard they have a test about our universe's space curvature, that's 0. they said it maybe means our observable universe is a very small part of the whole universe, I don't know the detail. but they do have some method to prove infinite, maybe. $\endgroup$
Dec 18, 2012 · But (and this may be more at the heart of the question), given an infinitely large universe that’s more or less homogeneous (lots of “stuff”, like the part of the universe we can see with telescopes, instead of just being empty forever), then pretty much anything that’s remotely possible, that could conceivably be the result of a string
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