If we know approximately how long it’s been since the Big Bang, and we know approximately how fast the universe expands/has been expanding, why can’t we get a good estimate on how big the non-observable universe is? Or more specifically, why can’t we figure out the radius on how far matter has spread out since the Big Bang?
In: Planetary Science
There is a tower somewhere. You can not see it. You can not see pictures of it. You can not observe it in any way, ever.
How tall is it?
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