In addition to finally recovering from the hepatitis and becoming docent at Lund, it was in this same year that he made his next great theoretical breakthrough.
Bilang karagdagan sa wakas pagbawi mula sa sakit sa atay at pagiging guro at Lund, ito ay sa parehong taon na siya sa kanyang ginawa sa susunod na magandang panteorya pambihirang tagumpay.