Interdimensional Hypotheses in Ufology: Skinwalker Ranch, Parallel Realities, and Memorandum 6751
To the point
The interdimensional hypothesis claims UFOs originate from beings or phenomena in parallel dimensions rather than from extraterrestrial visitors, a view associated with Jacques Vallée, J. Allen Hynek, John Keel, and Meade Layne and supported by Skinwalker Ranch observations and Dr. Travis Taylor, embracing ideas of parallel realms, interdimensional membranes, and etheric beings, with FBI Memorandum 6751 sometimes cited in debates.