During the 1930s and 1940s, Heinlein was deeply interested in Alfred Korzybski's general semantics and attended a number of seminars on the subject.
V 30. a 40. rokoch sa Heinlein podrobne zaujímal o Všeobecnú sémantiku Alfreda Korzybskiho a navštevoval množstvo seminárov na túto tému.