Time travel is well known, but kept at arm's length, and criminals control all data coming out of times that are still 'screwed'.
All real after times, in this usage, refers to times where abducted and reprogrammed 'To' robots provided the technological basis for moving a portion of the planet's population, usually an ethnic group of 2 or 3 original languages, off-planet, and even out of the galaxy.
Dominated by false conceptions and or lack of understanding related to physics, such times are characterized by essentially advanced robots moving on foot to update personal media devices carried to central locations, because those times avoided communications capabilities at a distance, in nearly every possible way.
See: Ralph Jones, Georg Schröder, Rasputin Zaitsev, Fang Lao, Jorge Lopez
See: Palpatine, Shaddam Corrino