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Scientific American Magazine Vol 319 Issue 4

Scientific American Magazine

Volume 319, Issue 4

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Features

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MathematicsOctober 1, 2018

The Unsolvable Problem

After a years-long intellectual journey, three mathematicians have discovered that a problem of central importance in physics is impossible to solve—and that means other big questions may be undecidable, too

Toby S. Cubitt, David Pérez-García, Michael Wolf