These are illustrations of some older know-how that was hardly ever seen on Sikaiana in 1980-1993. A Connecticut Yankee in King Arthur’s Court docket is an uncommon example of this Trope being invoked: as a side-impact of the Church decrying King Arthur’s Courtroom and deciding to decimate all the things and everybody involved with it for his or her blasphemy; they destroy all of the technology and knowledge that “The Boss” (the titular Yankee, who has Introduced Radio To The Romans and prompted an industrial revolution a number of hundred years early) has made.
Most of the Arkadian units in Spartakus and the Solar Beneath the Sea might depend as Misplaced Technology; their creators died way back and nobody at this time is aware of methods to fix them – which is Very Unhealthy because their artificial solar is dying.
Mass Effect: Andromeda has everyone within the Heleus Cluster of the Andromeda galaxy fighting over super-know-how generally known as the Remnant, which additionally fights again itself since its automated caretaker robots don’t view individuals coming to reverse engineer things very kindly.
Retrieving their Misplaced Know-how is among the major reasons the Dwarves continue to launch expeditions into the Darkspawn infested Deep Roads in Dragon Age: Origins Among the misplaced thaigs still maintain beneficial secrets that would help flip the tide against the Darkspawn.