Basically, this season has reintroduced the concept of the Mycogen sector into the canon of the TV version of Foundation. Here’s how the newest Foundation episode reboots and redefines the Mycogen sector, and what it might mean for the series going forward. The big change in this season has been the revelation that an ancient religion of robot-worshipers called “The Inheritance” still dwells in the Mycogen sector, deep in Trantor. In Prelude to Foundation, the Mycogen sector (or Mycogen district) is a place that Hari and his companion, Dors Venabili, flee to while on the run from the Empire. So, if you squint, the latest twist in Foundation, the TV show, is an incredible remix of Asimov’s 1988 Foundation prequel novel.