english: Well, it turns out that Einstein and Kaluza and many others worked on trying to refine this framework and apply it to the physics of the universe as was understood at the time, and, in detail, it didn't work.
non_english: Izkazalo se je, da so Einstein, Kaluza in mnogo drugih poskušali izpopolniti ta okvir in ga uporabiti v fiziki vesolja, kot so jo takrat razumeli, in v podrobnostih ni delovala.