What does the letter "M" in the famous M-theory mean?
Molecule
Matter
Membrane
not known
Modern attempts to formulate M-theory are typically based on matrix theory or the AdS/CFT correspondence. According to Witten, M should stand for “magic”, “mystery”, or “membrane” according to taste, and the true meaning of the title should be decided when a more fundamental formulation of the theory is known.
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Molecule
Matter
Membrane
not known
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