Harold Lasswell briefly considered a quantum theoretical approach to political science in 1964, with reference in particular to conflictual possibilities. His key concepts correspond to those in Q methodology, and thus to an objective science for subjectivity. Lasswell's duration is subjectivity as a cosmic phenomenon; his decision structures correspond to Q factors. The correspondances are exemplified with reference to subjective science as it is now developing. Self referentiality could have been as profound for Lasswell as it is for Q methodology, in a quantum-theoretical framework.