RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
90 results for "preservation bias" — page 2 of 5
H_4_19 — Translation Bias: How Translators Shape Ancient Meaning
Translation — the rendering of texts from one language into another — is never a neutral, transparent process. Every translation involves choices about how to handle ambiguity, cultural concepts with no direct equivalent
F_4_04 — Post-Catastrophe Knowledge Preservation
If advanced civilization existed before the Younger Dryas impact (~12,800 years ago), how could its knowledge survive total civilizational collapse? This is not an idle question — it is the central engineering problem of
J_4_08 — Ancient Refrigeration and Ice Storage — Yakhchāl to Ice Houses
The ability to preserve cold — to store ice, cool water, and refrigerate food — was achieved by ancient civilizations through ingenious engineering solutions that exploited evaporative cooling, radiative cooling, thermal
INTERDOC — Archaic Knowledge Continuity: Transmission Pathways Across Civilizational Transitions
This cross-section synthesis document traces how specific technical, cosmological, and medical knowledge traditions survived, transformed, or were independently rediscovered across major civilizational transitions. It ma
T_3_18 — Anomalistic Psychology
Anomalistic psychology is the scientific study of extraordinary human experiences — including apparent telepathy, precognition, ghost sightings, alien abduction reports, near-death experiences, and other phenomena tradit
L_4_15 — Y-Chromosome and mtDNA Mismatch Patterns in Human Populations
The Y chromosome (paternally inherited, non-recombining) and mitochondrial DNA (maternally inherited) provide independent genealogical records of male and female lineage histories, respectively. When these two markers te
ZE_5_20 — Ethics of Artificial Intelligence
The ethics of artificial intelligence addresses the moral, social, and existential challenges arising from the development and deployment of increasingly powerful AI systems. [KEY FINDING] Core issues span three horizons
F_2_07 — Salt Trade and Ancient Economies
Salt — sodium chloride (NaCl) — was arguably the most economically important commodity in the ancient and medieval world, rivaling gold and silver in its capacity to generate wealth, shape trade routes, and determine the
M_3_10 — Ancient Astronomical Precision: Were They Really That Accurate?
Claims of extraordinary astronomical precision in ancient monuments — temples aligned to specific stars, pyramids oriented to true north within fractions of a degree, megalithic sites encoding the 25,920-year precession
M_4_03 — Archaeological Dating Disputes and Controversies
Archaeological dating methods — the techniques used to determine the age of artifacts, structures, and deposits — are the backbone of all claims about the human past. Radiocarbon dating (carbon-14 analysis, developed by
M_4_04 — Library Destructions and Lost Knowledge Catalogs
The deliberate or accidental destruction of libraries and knowledge repositories is one of humanity's recurring tragedies. From the Library of Alexandria (whose gradual destruction eliminated perhaps 400,000–700,000 scro
U_1_06 — Folk Music and Ethnomusicology
Folk music broadly refers to traditional music transmitted orally within communities, typically without known individual composers, evolving through collective performance practice. Ethnomusicology is the academic study
U_4_03 — Cultural Evolution — Dual Inheritance and Cumulative Culture
Cultural evolution theory applies Darwinian principles — variation, selection, inheritance — to the transmission and transformation of cultural information (beliefs, technologies, norms, institutions). The dual inheritan
X_3_07 — Organ Transplantation
Organ transplantation — the surgical transfer of an organ from one body (donor) to another (recipient) — is one of the most remarkable achievements of modern medicine, transforming previously fatal organ failure into a t
W_5_37 — The House of Wisdom: Baghdad and the Islamic Golden Age of Knowledge
The House of Wisdom (Bayt al-Ḥikma) was a major intellectual institution in Baghdad during the Abbasid Caliphate (est. c. 762 CE), reaching its zenith under Caliph al-Maʾmūn (r. 813–833 CE). While its exact nature — libr
ZH_5_13 — Archaeoastronomical Controversies: Precision Debates and Methodological Limits
Archaeoastronomy — the study of how past cultures understood and used celestial phenomena — has been marked by recurring methodological controversies since its modern founding in the 1960s. The central problem: when an a
ZF_3_16 — Underwater Cultural Heritage: Submerged Archaeology and Maritime History
Underwater cultural heritage encompasses the vast archaeological record preserved beneath the world's oceans, seas, rivers, and lakes — estimated to include over 3 million shipwrecks worldwide, along with submerged settl
Z_5_23 — Gene Drives: CRISPR-Based Inheritance Manipulation and Ecological Engineering
A gene drive is a genetic engineering technology that biases inheritance in sexually reproducing organisms, causing a modified gene to spread through a population at rates far exceeding normal Mendelian inheritance (~50%
K_2_04 — Attention and Awareness
Attention and awareness are intimately linked yet dissociable aspects of consciousness. Attention — the selective processing of some information at the expense of other information — is a fundamental bottleneck in human
K_5_04 — Neuroscience of Belief
Belief — the mental state of holding something to be true — is a cornerstone of conscious experience, shaping perception, memory, emotion, decision-making, and behavior. The neuroscience of belief has revealed that belie
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