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After some revisions and developments, the conjecture took the form of “Every simply-connected, closed 3-manifold is homeomorphic to S So here are nine more brutally difficult math problems that once seemed impossible, until mathematicians found a breakthrough. That turned out to be much harder—as in, no one was able to solve for those integers for 65 years until a supercomputer finally came up with the solution to 42.
That’s the beauty of math: There’s always an answer for everything, even if takes years, decades, or even centuries to find it.
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