psychohistorians
...it was after the fall of the First Foundation that the constructive aspects of the Mule's regime took shape. After the definite break-up of the first Galactic Empire, it was he who first presented history with a unified volume of space truly imperial in scope. The earlier commercial empire of the fallen Foundation had been diverse and loosely knit, despite the impalpable backing of the predictions of psychohistory. It was not to be compared with the tightly controlled "Union of Worl
