3 ms·I don't remember any of that in Dune. Is that extended universe or something?by Tao3300 3y agoI don't remember any of that in Dune. Is that extended universe or something?ottaborra 3y agoRead the Butlerian CrusadeTao3300 3y agoSo it's extended universe.Animats 3y agoIt's alluded to in the original, to explain why they're doing navigation the hard way.Tao3300 3y agoRight. But none of what was said earlier is in there.