Fact or Fiction
Fact or Fiction
Ask any question, including odd ones. You get a percentage, a clear call of more or less than 50%, the working, and the sources that produced it. If nothing matches, the score stays at 50% — nothing is invented.
Likelihood
BBC News, 23 September 2001 — reports that some named hijackers were still alive
51%
Equal to 50% — the sources do not tip either way
The score is 51% — more than 50%. Supporting sources currently outweigh contradicting sources after quality and confidence are applied.
How 51% was calculated
Start at 50%. Move by half of the net source score after uncertainty. Net source score is 0.12 (from −1 contradict to +1 support). Uncertainty is 76%. So 50% + 50% × 0.12 × 24% remaining certainty = 51%.
Supporting sources
10
Weighted strength 2.03
Contradicting sources
6
Weighted strength 1.59
No stance yet
35
Pulls the score toward 50% · 11.28
Uncertainty
76%
Share of the file that is unlabelled or missing
Working
start at 50% + half of (net source score × remaining certainty)
0.5 + 0.5 × 0.12 × (1 − 0.76) = 0.514
This percentage is calculated from the sources listed below — it is a score, not a court finding. Official origin does not add extra weight. Independent origin does not subtract weight. Two papers from the same group are one cluster, not two independent confirmations.
Reasoning
Step 1 · Match the question
Closest stored question: H019 — Published hijacker identities are substantially wrong (some named men were not aboard). Yes/no labels are taken from sources already linked to that question. Also close: H008, H012, H001.
Step 2 · Find matching sources
40 source(s) matched the wording. 4 further source(s) already linked to the stored question were included even if they did not contain the search words. 6 matching claim(s) contributed inherited stances.
Step 3 · Assign support or contradiction without inventing
4 labelled from stored question links, 14 from claims, 0 labelled automatically (capped, marked, not saved as human review), 33 left with no stance.
Step 4 · Weight each source
Each source contributes strength = (quality / 5) × confidence × how strongly it agrees or disagrees. Support strength 2.03, contradict strength 1.59, no-stance strength 11.28. A zero on chain of custody still lowers the mean and stays visible.
Step 5 · Turn that into a percentage
Start at 50%. Move up if support outweighs contradiction, down if the reverse. Unlabelled sources shrink the movement, so a thin file stays near 50%. Working: 0.5 + 0.5 × 0.12 × (1 − 0.76) = 0.514.
Step 6 · What this number is not
This percentage is calculated from the sources listed below — it is a score, not a court finding. Official origin does not add extra weight. Independent origin does not subtract weight. Two papers from the same group are one cluster, not two independent confirmations.
What is still missing
- 7 source(s) score zero on at least one quality check (shown on each card). Those zeros are kept visible and are not averaged away.
- 11 source(s) are unverified, inactive, or recorded as not retrieved. A missing file is a gap, not a finding against the question.
- 35 relevant source(s) have no stance yet. They increase uncertainty and pull the percentage toward 50%; they are not counted as support or contradiction.
- A second stored question (H008) also matches this wording. The percentage below is for H019 only — open the other question to compare. Do not average the two numbers.
Closest stored question
H019 · Published hijacker identities are substantially wrong (some named men were not aboard)perpetrators · match 12.2
Related questions
Same wording can map to more than one stored question. Each has its own percentage — do not average them.
Matching claims
- contradictedCLM-025
Some of the named 19 hijackers were not aboard the aircraft / were still alive.
- verifiedCLM-011
American Airlines Flight 11 struck World Trade Center 1 at 08:46:40 on 11 September 2001.
- well_supportedCLM-042
About three-quarters of CIA materials cited by the 9/11 Commission, including all KSM interrogation reports, remained withheld as of the 2012 File posting.
- unsupportedCLM-023
The twin towers were destroyed by directed energy, not by impact, fire, or conventional explosives.
- unverifiedCLM-034
Reported 9/11 aircraft manoeuvres were not flyable manually by the named hijacker-pilots (automation/remote guidance).
- disputedCLM-032
NIST NCSTAR reports on the WTC are false as engineering explanations.
Sources that support this
10BBC 23 September 2001: some named hijackers reported still alive
BBC News, 23 September 2001 — reports that some named hijackers were still alive · 2001-09-23
Reputable outlets reported in September 2001 that some named hijackers were alive.
hypothesis link · human_seed link to H019 (seeded): BBC still-alive reports in week one.
CIA 9/11 File posting — 100+ FOIA documents, 19 June 2012
The Central Intelligence Agency's 9/11 File (NSAEBB 381) · 2012-06-19
In 2012 the National Security Archive posted 100+ CIA documents cited in Commission footnotes, and stated that this was about one-quarter of the CIA material the Commission cited, with KSM interrogation reports still withheld.
claim stance · Inherited from matching claim CLM-042.
911DA email: 6 blocks from Ground Zero, second-plane sound
September 11 Digital Archive (RRCHNM / ASHP) · 2001-09-12
A public-archive email describes street-level ash, paper, a 08:53 Wall Street exit, and the sound of a second aircraft hitting the South Tower from 5–6 blocks away, plus a Pentagon-evacuation report from Washington.
claim stance · Inherited from matching claim CLM-011.
Judy Wood: directed-energy destruction of the towers
Judy Wood — Where Did the Towers Go? (directed-energy claims) · 2010-01-01
An independent researcher published a directed-energy account of the tower destructions.
claim stance · zeros: contemporaneity, corroboration, chain_of_custody · Inherited from matching claim CLM-023.
Quality zeros remain visible: contemporaneity, corroboration, chain_of_custody.
Hulsey et al. (UAF): fire did not cause the observed collapse of WTC 7
Hulsey, Quan, Xiao — University of Alaska Fairbanks WTC 7 study (2019–2020) · 2020-03-01
A University of Alaska Fairbanks team published a model concluding fire did not cause WTC 7's observed collapse.
claim stance · Inherited from matching claim CLM-032.
Ted Walter — The 9/11 Hijacking Myth Exposed (presentation, 8 Sep 2024)
International Center for 9/11 Justice · 2024-09-08
Walter presented a 2024 IC911 talk arguing hijacker piloting of the reported manoeuvres is implausible.
claim stance · zeros: contemporaneity · Inherited from matching claim CLM-034.
Quality zeros remain visible: contemporaneity.
Sources that contradict this
6Commission: hijacker-still-alive reports were mistaken identity
9/11 Commission Report · 2004-07-22
The Commission treats early 'hijackers alive' stories as identification errors.
hypothesis link · human_seed link to H019 (seeded): Commission: mistaken identity.
Commission: AA11 struck WTC1 at 08:46:40
9/11 Commission Report · 2004-07-22
A large aircraft identified as AA11 struck WTC 1 at 08:46:40 on 11 September 2001.
hypothesis link · human_seed link to H019 (seeded): AA11 as a real flight with named hijacker-pilot Atta is multiply sourced.
NIST NCSTAR 1: impact plus fire initiated collapse of WTC 1 and WTC 2
NIST NCSTAR 1 — Final Report on the Collapse of the World Trade Center Towers (2005) · 2005-09-01
NIST published a fire-and-impact initiation sequence for WTC 1 and WTC 2 in 2005.
claim stance · Inherited from matching claim CLM-032.
NIST NCSTAR 1A: WTC 7 collapse initiated by fire-induced buckling of Column 79
NIST NCSTAR 1A — Final Report on the Collapse of World Trade Center Building 7 (2008) · 2008-11-20
NIST attributes WTC 7's collapse to fire-induced failure beginning at Column 79, with global collapse at 17:20.
claim stance · Inherited from matching claim CLM-032.
NTSB flight-path study: AA77 from Dulles to the Pentagon
NTSB flight-path studies, Air Traffic Control tapes, and CVR/FDR summaries (AA11, UA175, AA77, UA93) · 2002-02-19
NTSB reconstructed a continuous radar/path track of AA77 from takeoff to the Pentagon.
claim stance · Inherited from matching claim CLM-034.
Legge & Stutt — AA77 FDR analysis supports official Pentagon flight path (Jan 2011)
Journal of 9/11 Studies · 2011-01-01
A 2011 Journal of 9/11 Studies FDR analysis concludes the official AA77 path to Pentagon impact is supported.
claim stance · Inherited from matching claim CLM-034.
Sources with no stance yet
35Natalie Schilling — Linguistic analysis of AA11 transmissions purported to be Mohamed Atta (Apr 2026)
Natalie Schilling, Linguistic Analysis of AA11 transmissions purported to be Mohamed Atta (April 2026) and addendum (August 2026) · 2026-04-01
A 2026 linguistic report on AA11 audio attributed to Atta was published under IC911 Reports, authored by Natalie Schilling, Ph.D.
hypothesis link · zeros: contemporaneity · human_seed link to H019 (seeded): Linguistic report title does not state whether the speaker is Atta.
Quality zeros remain visible: contemporaneity.
Piers Robinson — Manual or Automated? Flight simulation of reported 9/11 aircraft manoeuvres (May 2026)
Piers Robinson, Manual or Automated? Flight simulation study of reported 9/11 aircraft manoeuvres (May 2026) · 2026-05-01
IC911 published a May 2026 Robinson report whose title frames reported 9/11 manoeuvres as a manual-vs-automated question.
claim stance · zeros: contemporaneity · Inherited from matching claim CLM-034.
Quality zeros remain visible: contemporaneity.
BBC Jane Standley reports WTC 7 collapsed while it stands on camera
BBC World — Jane Standley live report of WTC 7 collapse (11 September 2001) · 2001-09-11
BBC World reported WTC 7 had collapsed at a time when the building was still standing on camera.
unclassified · Retrieved as relevant; no inherited polarity. Unclassified mass raises uncertainty rather than inventing support or contradiction.
Columbia 9/11 Oral History Project — holdings statement
Columbia Center for Oral History Research — September 11 Oral History Project · 2026-09-03
Columbia's 9/11 oral-history project reports five programmes, over 900 hours with over 600 people, 351 of them open, plus a 2011 book. Transcripts were not ingested.
unclassified · Retrieved as relevant; no inherited polarity. Unclassified mass raises uncertainty rather than inventing support or contradiction.
David Ray Griffin — Anomalies in the 9/11 Commission Report (Toronto Report ch.2)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
Griffin's 2012 chapter lists Commission process constraints (Zelikow, funding, access) and twelve claimed omissions, with footnotes to named books, newspapers, and the Report itself.
unclassified · Retrieved as relevant; no inherited polarity. Unclassified mass raises uncertainty rather than inventing support or contradiction.
Judge Daniels 2024: not 'just an innocent participant'
In re Terrorist Attacks on September 11, 2001 (S.D.N.Y.) · 2024-08-01
A U.S. district judge in 2024 drew a reasonable-inference finding that Bayoumi's housing help was tasked by the Saudi government.
unclassified · Retrieved as relevant; no inherited polarity. Unclassified mass raises uncertainty rather than inventing support or contradiction.
Barry Jennings and Michael Hess: explosions and being trapped in WTC 7
BBC World — Jane Standley live report of WTC 7 collapse (11 September 2001) · 2001-09-11
Jennings and Hess were trapped in WTC 7 and described explosion-like events and delayed rescue.
unclassified · Retrieved as relevant; no inherited polarity. Unclassified mass raises uncertainty rather than inventing support or contradiction.
Graeme MacQueen — 156 eyewitnesses describing explosions at the Twin Towers (Toronto Report ch.8)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
MacQueen compiled 156 accounts, mostly FDNY oral histories, in which speakers used explosion/bomb language about the towers; he documents both the original wording and some later retractions.
unclassified · Retrieved as relevant; no inherited polarity. Unclassified mass raises uncertainty rather than inventing support or contradiction.
Topics
Day-of events, engineering questions, process failures, and foreknowledge leads.