Noun
(psychology, historiography) The scientific study of psychology and motivation in history.
(science fiction) A fictional mathematical statistical science of large population dynamics, where mathematical models can predict general futures, based on activities of quadrillions of individuals. The fictional science first occurs in Asimov's 1950s Foundation series, and has since been picked up by other authors for other works.
Source: en.wiktionary.orgAccording to psychohistory theory, regardless of the changes in the environment, it is only when changes in childhood occur and new psychoclasses evolve that societies begin to progress. Source: Internet
Determined to work out his psychohistory with the knowledge that the Mycogenians supposedly possess, Hari decides to speak to a Mycogenian alone about history, hoping to find if their world was the original one as they claim. Source: Internet
Having worked his entire adult life to understand psychohistory, Seldon instructs his granddaughter, Wanda, to set up the Second Foundation. Source: Internet
Hummin, however, is convinced that Seldon knows something, so he continuously presses him to work out a starting point to develop psychohistory. Source: Internet
Furthermore, the concept of psychohistory, which gives the events in the story a sense of rational fatalism, leaves little room for moralization. Source: Internet
Daneel continues to explain that human internal warfare or parochialism was the reason for his causing the creation of psychohistory and Gaia. Source: Internet