Ultraterrestrial / cryptoterrestrial
Also: ultraterrestrials; cryptoterrestrials; interdimensionals; antediluvian survivors; Silurian hypothesis beings
Could an intelligence have a hidden terrestrial history? Compare Puthoff’s proposals, four cryptoterrestrial models and the Silurian thought experiment about traces an ancient industrial society might leave.
Source-by-source dossier
Accounts & evidence
Puthoff’s abstract, scenario sections and conclusion; the 2024 cryptoterrestrial paper’s disclaimer, introduction and conclusion; Silurian §§1.4 and4. No primary Keel edition or habitation evidence was verified.
Hypothesis
A menu of hidden-origin models
Puthoff,2022
01 / 03
Follow the record
Unresolved reports
Alternative local-origin scenarios
Proposed forensic tests, not discoveries
No source-supported portrait is assigned to this profile.
- Place
- Caves and undersea settings are motifs or proposed search locations.
- Craft association
- UAP reports motivate the model; no particular craft’s occupants are identified.
What this source describes
- description
- Secluded societies, terrestrial remnants and stranded visitors are alternatives, not one described anatomy.
How this account may be illustrated
Must preserve
- Separate conditional alternatives
Must not add
- Observed underwater cities or Moon bases
- A generic race portrait treated as evidence
Not established
- Whether any proposed population exists
The surviving record
An authored paper makes its hypotheses inspectable.
Independent support
The scenario list is not independent evidence of a concealed community.
What remains unresolved
Actual existence, location, morphology and technology remain open.
Read / watch this account
- Ultraterrestrial Models ↗Hypothesis paper · Journal of Cosmology29(1),pp.20001–20016
Speculative synthesis
Four cryptoterrestrial possibilities
Lomas, Case and Masters,2024
02 / 03
Follow the record
Lomas, Case and Masters,2024
A published paper and explicit disclaimer survive.
The authors themselves regard the overall hypothesis as likely false.
No source-supported portrait is assigned to this profile.
- Place
- No verified settlement or mapped base established.
- Craft association
- No measured technology assigned to a population.
What this source describes
- description
- Human remnants, nonhuman terrestrial lineages, concealed arrivals and magical possibilities are discussed separately.
How this account may be illustrated
Must preserve
- Four clearly conditional branches
Must not add
- Institutional endorsement implied from affiliations
- Four photoreal species rendered as discovered
Not established
- Which, if any, scenario fits an observation
The surviving record
A published paper and explicit disclaimer survive.
Independent support
It is not a Harvard institutional finding or four documented species.
What remains unresolved
The authors themselves regard the overall hypothesis as likely false.
Read / watch this account
- The cryptoterrestrial hypothesis ↗Speculative synthesis · Philosophy and Cosmology33,pp.67–122
Geological detectability question
Could old industry leave a signature?
Schmidt and Frank,2018
03 / 03
Follow the record
Hypothetical ancient industry
Potential traces in geological strata
Competing natural explanations
No source-supported portrait is assigned to this profile.
- Place
- Earth’s geological archive, not a sighting location.
- Craft association
- No UAP or surviving craft is identified.
What this source describes
- description
- No being is described. The subject is sedimentary and geochemical evidence over geological time.
How this account may be illustrated
Must preserve
- Conditional signature/comparison diagram
Must not add
- Dinosaur people, Atlantis survivors or alien faces
- Recent historical legends treated as the paper’s subject
Not established
- Any actual ancient industrial population
The surviving record
A primary paper defines a testable detection problem.
Independent support
Potential signatures can be nonunique; no prior civilization is discovered.
What remains unresolved
Detectability is not evidence that a civilization actually existed.
Read / watch this account
- The Silurian hypothesis ↗Geological thought experiment · §§1.4 and4
Editorial corrections
What not to conflate
Open the detailed attribution notes
- The corpus sometimes calls Puthoff’s proposal the Silurian hypothesis; these are different papers and questions.
- Cataclysm survivors, lunar bases and Lazar’s hypothetical agreement are not established results.
- The precise Keel coinage claim needs an original-edition check.
Next research questions
Where to go deeper
- Which observation would discriminate local secrecy from visitors or misidentification?
- Can a proposed test identify a unique signature rather than merely an unexplained feature?
Source ledger · 3 entries
- Hypothesis paper
Ultraterrestrial Models ↗
Multiple scenarios and proposed investigations; not a report of a discovered civilization.
Harold E. Puthoff · 2022 · Journal of Cosmology29(1),pp.20001–20016 - Speculative synthesis
The cryptoterrestrial hypothesis ↗
Published version; authors describe the proposal as speculative and consider it likely false.
Tim Lomas, Brendan Case, Michael P. Masters · 2024 · Philosophy and Cosmology33,pp.67–122 - Geological thought experiment
The Silurian hypothesis ↗
Ancient industrial signatures and their ambiguity; no beings or survivors discovered.
Gavin A. Schmidt, Adam Frank · 2018 · §§1.4 and4
LOOK CLOSER
The visual record
Illustrations, recordings and archival references — each with its own provenance. A documented source is a starting point for investigation, not a verdict on its explanation.
Ultraterrestrial Models
A hypothesis paper. The category describes a possible origin model rather than a documented biological form.
Harold E. Puthoff · 2022 ↗Link only — rights with the publisherCorpus passage · 1:00:41
Open the source at the cited time. The episode thumbnail is video packaging, not a photograph of the reported subject.
American Alchemy / Jesse Michels ↗YouTube-hosted preview and player; not relicensedCorpus passage · 1:42:05
Open the source at the cited time. The episode thumbnail is video packaging, not a photograph of the reported subject.
American Alchemy / Jesse Michels ↗YouTube-hosted preview and player; not relicensedCorpus passage · 1:13:51
Open the source at the cited time. The episode thumbnail is video packaging, not a photograph of the reported subject.
American Alchemy / Jesse Michels ↗YouTube-hosted preview and player; not relicensedMentioned in the corpus
Retrieval trail, not additional independent witnesses. These machine-caption excerpts can mix host questions, inserted clips and guest speech. The reviewed profiles above retain the source-specific attribution and corrections; open the full passage before reusing it.
Passages this record cites, with the stamp of the block each quote sits in.
Joe Rogan: The Truth About Aliens (He Finally Says It) 30 November 2025
- 1:00:41 ▶
He's written a paper on ultraterrestrials. So, beings that could have died off in a cataclysm.
- 1:00:41 ▶
Maybe those survivors have underwater bases, bases on the moon. They have advanced technology left over from that Atlantean period.
- 1:00:41 ▶
He's written a paper on ultraterrestrials. So, beings that could have died off in a cataclysm. Maybe there were some remnant survivors. Maybe those survivors have underwater bases, bases on the moon.
- 1:01:12 ▶
Like a breakoff civilization, a break. They they figured out a way to survive.
- 1:00:41 ▶
“We Captured a 12 Foot Giant in Afghanistan!” -Tim Alberino 5 April 2026
A Weekend With Bob Lazar: Inside Area51's UFOs 13 April 2026
“The Air Force Captured a 12 Foot Giant in Afghanistan!” -Tim Alberino | MEMBERS RELEASE 3 April 2026
- 2:11:34 ▶
are they cryptoterrestrial? Are they By the way, you you mentioned something really interesting, the antediluvian hypothesis
- 2:11:34 ▶
maybe some people from like an Atlantean civilization escaped and maybe went off planet or under the earth and then now they're they're they have this advanced technology that they developed a long time ago and they're still here
- 2:11:34 ▶
Eric Weinstein Debates CIA UFO Expert Hal Puthoff 11 February 2022
Hollywood, The CIA & UFOs: The History Beyond Spielberg 20 June 2026
Named in 4 uploads (automatic name matching, 5 mentions)
Sources on this record
The reviewed source ledger is attached to the individual accounts above. Download the source-specific dossiers. The original registry remains a retrieval index; its older synthesized descriptions and speaker labels are not the editorial authority for this edition.
Built from graph nodes N-SPECIES-0010.