While searching in the Internet, I came to know about Werner Heisenberg's attempt to obtain an Unified Field Theory (see the book Introduction to Unified Field Theory of Elementary Particles). But also it has been mentioned that since this theory is non-renormalizable, it wasn't a successful candidate for the UFT. Was non-renormalizability the only reason? If not then what were the other reasons? Specifically, my question is that was the theory abandoned because it was wrong or because it wasn't practically efficient? If it was wrong then can some instances be provided?

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    $\begingroup$ Can you give more details on what the theory actually is? BTW it is extremely unlikely that it would be possible for anyone from the 1950s [Wikipedia says Heisenberg wrote about his unified field theory in 1953] to have written down a successful "theory of everything" given that the standard model was still 20 years from being constructed. $\endgroup$ – Andrew Oct 3 '14 at 4:13
  • $\begingroup$ @Andrew: In fact Heisenberg wrote a book on this theory which is called the Nonlinear Spinor Field Theory. I can't find a link to the book. However, this may give you some insight. Although I know it is hardly enough. $\endgroup$ – user60367 Oct 3 '14 at 4:18
  • $\begingroup$ @Andrew: Also see this. $\endgroup$ – user60367 Oct 3 '14 at 4:21
  • $\begingroup$ Please also see this. $\endgroup$ – user60367 Oct 15 '16 at 14:07

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