Flatness Problem: To call a spade a spade.

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Flatness Problem: To call a spade a spade.
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1.
The Flatness Problem
2.
Flatness problem - Wikipedia, the free encyclopedia
3.
Flatness Problem | CAS CMS

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P.S.
The universe is flat on the large scale, as per the scientific
evidence provided by WMAP.
Thus the universe was known to be flat to within about 15% accuracy
prior to the WMAP results.
WMAP has confirmed this result with very high accuracy and precision.
We now know that the universe is flat with only a 0.5% margin of error.

WMAP- Shape of the Universe.
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