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Question: If string theory requires the testing of planck lengths to be proved which is impossible to do(to my knowledge), why is it being considered as a theory to explain phenomena? Won't we be left with another theory that may seem valid in many circumstances (if it is correct) but can never actually be proved to work universally?
Comments
sebstrug commented on :
So would you not care if a theory was not able to be proved as long as it would be able to quantify gravity?
Thank you very much for your answers!