B What ever happened to Classical Unified Field Theory?

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Professional physicists continue to explore the unification of gravitational and electromagnetic fields, although the classical approach has faced significant skepticism. Some researchers believe that Einstein's nonsymmetric Unified Field Theory (UFT) lacks rigor, particularly criticizing his treatment of indices in differential geometry. The discussion reflects a broader debate on whether this quest is a viable scientific pursuit or a futile endeavor. Critics argue that the foundational concepts may not align with modern understandings of physics. Overall, the pursuit of a classical unified field theory remains contentious and unresolved in the scientific community.
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What happened to unified field theory?
Are there currently professional physicists who work on Einstein’s quest to unify the gravitational field and the electromagnetic field (as classical fields), or has this idea been completely abandoned? Is it simply a hopeless endeavour?
 
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If you're referring to Einstein's "nonsymmetric UFT", well,... imho it's total rubbish. His cavalier manipulations of the two lower indices on the connection components shows that he didn't really understand the true purpose of the connection object in the context of differential geometry. It's "indexology" (where I invent that term in analogy to "numerology"). :oldfrown:
 
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