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I have looked on the internet and no one can tell me why M-theory needs eleven dimensions?

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  • $\begingroup$ How much mathematics can we use? $\endgroup$ – J.G. Apr 2 '18 at 6:46
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    $\begingroup$ As much as you want $\endgroup$ – Bill Apr 2 '18 at 6:56
  • $\begingroup$ There's actually two good reasons... $\endgroup$ – Mozibur Ullah Apr 2 '18 at 8:31