Most academics are promoted after a few years as a Privatdozent, but Kaluza clearly was not thought to be of sufficient merit for he remained a Privatdozent for 20 years.
Karamihan sa akademya ay itaas pagkatapos ng ilang taon bilang isang Privatdozent, ngunit malinaw na Kaluza ay hindi nag-akala na ng sapat na gantimpala para sa siya ay nanatili ng isang Privatdozent para sa 20 taon.