Ancient Legacy Bayesian Assessment
If an advanced civilisation existed before ours,
what could its technology teach us?
ALBA investigates whether an advanced civilisation existed before the Younger Dryas, 13,000 years ago. A civilisation whose technology left no trace in the geological record. We may have identified where it was. The site has never been investigated.
Convergence
Eight disciplines. One location.
Geology
Younger Dryas impact confirmed: shocked quartz, platinum anomalies across five continents.
Archaeology
Peaks of sophistication without predecessors, followed by millennia of regression.
Textual Analysis
Plato's three philological keys: mobile Pillars, Egyptian inversion, pélagos as Pacific.
Bathymetry
Concentric ring structure at GEBCO Hill matching Critias with RMSE 4.1–7.9m.
Genetics
Sama-Bajau sea nomads: genetic adaptation to diving consistent with maritime diaspora.
Mythology
Universal flood myths correlating with post-glacial sea-level data and peer-reviewed methodology.
Geometry
Φ-network of megalithic sites converging on GEBCO Hill with z-score 4.98 (p < 10⁻⁶).
Astronomy
Archaeoastronomical alignments to Betelgeuse consistent with pre-Younger Dryas dating.
Either this is the most extraordinary coincidence in the history of science, or it demands investigation.
Read the Full Inquiry →0
z-score
p < 10⁻⁶
0
converging
evidence lines
0/15
criteria
validated
0
P(H₃)
90–96% range
Why It Matters
Three reasons to investigate.
Forgotten Energy
No pollution. No radioactivity. No fossil traces. If this civilisation existed, it mastered energy sources we haven't rediscovered: piezoelectricity, telluric currents, acoustic resonance. We cannot afford to ignore this.
Read the Mission →Beyond Debate
This is not about believing in Atlantis. This is about a scientific duty to investigate when evidence reaches critical mass. ALBA quantifies every claim, retracts every error, and publishes every dataset.
See the Methodology →One Dive Away
GEBCO Hill sits at -19m. Standard diving depth. The site is identified, the methodology is published, the coordinates are public. The only thing missing is the expedition.
Explore the Expedition →The Inquiry
From question to expedition, in five stages.
The Question
Could a clean-energy civilisation have existed 13,000 years ago?
The Fingerprint
Identifying the technological signature to search for.
The Search
Following the geometry to a single point on Earth.
The Validation
Testing GEBCO Hill against every available dataset.
The Expedition
The evidence is in. Now we go.
The Site
7.550°N, 117.750°E — Sulu Sea
Where the evidence converges.
GEBCO Hill
Deep Zone
Criteria Scorecard
12 validated. 3 require fieldwork.
The Wager
Pascal's wager, applied to research.
| Technologies existed | Technologies did not exist | |
|---|---|---|
| We investigate | Civilisational energy paradigm shift | Advances in underwater archaeology, bathymetry, Bayesian methodology |
| We don't investigate | Irreversible civilisational loss | Nothing |
The cost of investigation is scientific.
The cost of ignoring the evidence is civilisational.
Publications
A Bayesian Search for a Pre-Younger Dryas Non-Industrial Civilisation: From Hypothesis to Candidate Site
Sivan, J. (2026)
Zenodo-18607785 · DOI: 10.5281/zenodo.18607785
Open Data — All scripts and datasets published under CC-BY 4.0.
GitHub ↗
Research Team
Julien Sivan
Founder, Lead Researcher
Methodology
ALBA's investigation draws primarily on peer-reviewed research across multiple disciplines. Full references are available in the preprint.
Meet the Team →
ALBA does not claim to be right.
ALBA claims to know exactly
how it could be wrong.
The cost of investigation is scientific.
The cost of ignoring the evidence is civilisational.
Don't believe us. Check our data.