If we were to learn that the universe is a re- collapsing universe, then we must have misinterpreted Hubble's Law because the universe must be contracting, rather than expanding as generally believed.

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Hubble's Law itself is an observation that galaxies are moving away from us at speeds proportional to their distances, indicating the universe is expanding. The concept of a re-collapsing universe doesn't necessarily contradict Hubble's Law but suggests that at some point in the future, the expansion could reverse into a contraction due to gravitational forces overcoming the expansion. This does not imply a current contraction or a misinterpretation of Hubble's Law.

If We Were to Learn That the Universe Is a Re-