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Draft:Cryptoterrestrial hypothesis

  • Comment: The sourcing problems still need to be fixed. BuySomeApples (talk) 18:12, 7 December 2023 (UTC)
  • Comment: This draft is for a title that was previously an article, but was then cut down to a redirect. If this draft is accepted, the history should be preserved. Do not tag the redirect for G6.
    Reviewers should check the history and verify whether there was a consensus to cut the article down to a redirect, or whether the action was taken boldly without discussion. If there was a consensus for the cutdown, do not accept this draft without verifying that the draft improves the article or that consensus has changed. If in doubt, please discuss.
    Robert McClenon (talk) 07:28, 7 December 2023 (UTC)
  • Comment: Remove the external links on prose throughout the article and also, some sections paragraphs in some sections are not sourced at all. Please cite your sources. Vanderwaalforces (talk) 16:08, 19 November 2023 (UTC)


The cryptoterrestrial hypothesis, also referred to as intraterrestrial,[1] or inner-earth,[2] proposes that unidentified flying objects are a sign of a technologically advanced population living on Earth alongside humans.[3][4][5] The idea has been around since the beginning of the 20th century, was associated with the Shaver mystery and Walter Siegmeister, and underwent several reformulations, most notoriously by American journalist John Keel, French scientist and ufologist Jacques Vallée and American novelist and blogger Mac Tonnies. It is often associated with the concept of a Hollow Earth and the Silurian hypothesis, however the three are not equivalent and other theories have been put forth to account for the UFOs’ nature and origin within this framework.

This hypothesis is coinsidered pseudoscientific in nature, just like the disciplines concerned with its study such as cryptozoology and ufology. Furthermore, in spite of its early popularity, the concept that UFOs could be indigenous to planet Earth is considered unconventional even amongst ufologists.[6][7][8]

  1. ^ Whitesel, Brad (2001). "Walter Siegmeister's Inner-Earth Utopia". Utopian Studies. 12 (2): 92-93. JSTOR 20718317.
  2. ^ Clark, Jerome (2000). Extraordinary Encounters An Encyclopedia of Extraterrestrials and Otherworldly Beings (PDF). Santa Barbara, California: ABC-Clio. p. 123, 153. ISBN 1-57607-249-5. Retrieved December 11, 2023.
  3. ^ Kutz, Anna (June 11, 2024). "Hidden UFO civilization could be on Earth: Harvard researchers". NewsNation. Retrieved June 13, 2024.
  4. ^ Riley, Neal (July 2, 2024). "Aliens could be "walking among us" on Earth, Harvard researchers suggest". CBS News. CBS.
  5. ^ Tangermann, Victor (June 11, 2024). "Harvard Scientists Say There May Be an Unknown, Technologically Advanced Civilization Hiding on Earth". Futurism.com. Retrieved June 13, 2024.
  6. ^ Tonnies, Mac (March 2010). The Cryptoterrestrials - A Meditation on Indigenous Humanoids and the Aliens Among Us (PDF) (1st ed.). Anomalist Books. p. 35. ISBN 9781933665467. Retrieved Jan 10, 2024. This book documents a most unconventional slant on the enduring UFO mystery.
  7. ^ Lomas, Tim; Masters, Brendan; Case, Michael (Jan 7, 2024). The cryptoterrestrial hypothesis: A case for scientific openness to a subterranean earthly explanation for Unidentified Anomalous Phenomena (Preprint ed.). doi:10.13140/RG.2.2.31670.27208/1 – via ResearchGate.
  8. ^ X, Ram (July 2023). "UAP and the Trickster Phenomenon". Fortean Winds. Retrieved Jan 22, 2024. However, there is also a third minority class of hypothesis: an unconventional terrestrial explanation, outside the prevailing consensus view of the universe
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