<p>When I was working with Axel Ertelt from Halver on the manuscript for "Portals and Teleportation," which was published as a book in 2023, we repeatedly came across stories where eyewitnesses reported that things, items, or objects disappeared without a trace overnight. Considering that many of these things were found again because the person misplaced them or forgot them somewhere. In English, this disappearance is called a "disappearing objec...