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Are theories that are based on the philosophy acceptable in Physics? Sure, but only if backed by maths and experiment. The prime example would be General Relativity, the development of which was guided by a whole bunch of principles (Mach's principle, equivalence principle, principle of covariance). In contrast, Einstein failed to develop a unified ...


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If a theory never connects with experimental reality then no matter how neat it is it will eventually be dropped. This is the problem that much of theoretical physics based around the various incarnations of String Theory finds itself. A theory is in one very real sense a data compression and predictive algorithm. It needs to join the experimental dots in ...


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If a theory is not built on a solid foundation of (semi-rigorous) mathematics and a well-defined physical idea, the chances of it being accepted by the majority of physicists as a valid physical model are extremely small. If one wants to build up a theory of physics purely from philosphy, one will into some significant problems. After all is said and done, a ...



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