This has literally nothing to do with string theory except for one object sharing the same name. > And within these theories it’s often necessary to go beyond

This has literally nothing to do with string theory except for one object sharing the same name. > And within these theories it’s often necessary to go beyond points and particles to think about one-dimensional lines, or strings (which are conceptually distinct from the strings in string theory). And for that matter, they literally discuss observations in TFA, what are you on about. Anyway, if you don't know the role symmetries have played in physics for well over a century at this point, you aren't qualified to discuss the subject.