The Interdimensional UFO Hypothesis: A Perception-Based Alternative to Extraterrestrial Explanations

To the point

An interdimensional UFO view claims bizarre sightings come from parallel realities rather than alien spaceships, tracing a line from folklore through Meade Layne, John Keel, and Jacques Vallée who describe encounters as perception-changing, non-physical interactions; although some physics terms are cited, there is no solid evidence and critics point to methodological flaws, with AARO and NASA finding no non-human or dimensional origin.