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.
105 results for "long terminal repeats" — page 5 of 6
L_1_04 — Archaic Human Species Synthesis
The human evolutionary tree is far more complex than the older linear model suggested. Fossils, ancient DNA, and proteomics now show that Homo sapiens overlapped with several other hominin lineages, including Neanderthal
L_1_09 — Ghost Populations & Missing Archaic Lineages
Ghost populations are human groups whose existence is inferred from statistical signatures in modern or ancient genomes rather than from direct fossil or archaeological evidence. The term reflects a central challenge of
L_1_14 — Homo Erectus: The Most Successful Human Species
Homo erectus (including regional variants sometimes classified as H. ergaster, H. georgicus, H. soloensis, and H. pekinensis) is arguably the most successful hominin species in evolutionary history — persisting for nearl
L_5_05 — Epigenetic Clocks: Measuring Biological Age
Epigenetic clocks are mathematical models that estimate biological age — the physiological age of an organism's cells and tissues — based on DNA methylation patterns at specific CpG sites (regions where a cytosine nucleo
Y_2_05 — Near-Death Experiences: Cross-Cultural Analysis
Near-death experiences (NDEs) — profound subjective experiences occurring during clinical death, cardiac arrest, or perceived proximity to death — have been reported across virtually all cultures and historical periods.
Y_2_14 — Dying Process Phenomenology: Shared Death Experiences and After-Death Communication
The phenomenology of death and the experiences reported by those who witness the dying process include several distinct categories of altered-state phenomena that extend beyond the well-known near-death experience (NDE).
Y_2_16 — Near-Death Experience Latest Research
Near-death experiences (NDEs) — the vivid, structured experiences reported by approximately 10–20% of cardiac arrest survivors (including out-of-body perception, tunnel experiences, life reviews, encounters with deceased
Y_3_02 — Meditation, Neuroplasticity, and Contemplative Neuroscience
Meditation — the systematic training of attention and awareness — has been practiced for at least 3,000-5,000 years (earliest evidence: Indus Valley seal of a seated figure in meditation posture, ~2600 BCE; earliest text
Y_3_05 — Contemplative Neuroscience
Contemplative neuroscience — the scientific study of meditation, contemplative practices, and their effects on brain, body, and behavior — has matured from a fringe topic into a rigorous interdisciplinary field over the
P_4_01 — Death and the Afterlife Across Cultures
Every known human culture has developed beliefs about what happens after death — making afterlife cosmology one of the most universal features of human thought. The major frameworks include: judgment and reward/punishmen
P_2_08 — Transhumanism and Enhancement Ethics
Transhumanism is the philosophical and cultural movement advocating the use of technology to fundamentally enhance human capacities — cognitive, physical, emotional, and moral — beyond the limits set by biological evolut
ZE_5_13 — Ethics of Charity and Philanthropy: Effective Altruism and Duty to Give
The ethics of charity and philanthropy interrogates the moral obligations of the wealthy toward the poor, the effectiveness and legitimacy of charitable giving as a response to poverty, and the emerging movement of effec
ZE_3_18 — Frontier Ethics Survey
Frontier ethics examines the moral dimensions of technologies and practices at the edge of current scientific capability — where regulatory frameworks, ethical traditions, and public understanding lag behind technologica
S_4_01 — Existential Risk Taxonomy
Existential risk (x-risk) refers to any event that could permanently curtail humanity's long-term potential — including extinction, civilizational collapse without recovery, or irreversible loss of value (e.g., permanent
S_1_02 — The Singularity and Transhumanism
The Singularity hypothesis proposes that technological progress will reach a point — estimated by Ray Kurzweil at approximately 2045 — where artificial superintelligence triggers runaway growth, fundamentally and irrever
S_2_02 — Post-Human Futures and Digital Consciousness
What comes AFTER humanity? Post-human futures represent the landscape of possibilities once technology transforms the human condition beyond recognition. This spans physical pathways (space colonization, life extension,
F_2_04 — Obsidian Trade Networks: Archaeological Tracers of Ancient Exchange
Obsidian — naturally occurring volcanic glass formed when felsic lava cools rapidly — was one of the most valued materials in the prehistoric world. Its conchoidal fracture produces the sharpest edges known (thinner than
F_2_08 — Lapis Lazuli Trade Networks
Lapis lazuli — a deep-blue metamorphic rock composed primarily of lazurite — is one of the oldest traded luxury materials in human history, with its distribution across the ancient world providing direct evidence of long
F_4_03 — Ancient Maritime Technology and Naval Knowledge
The history of maritime technology reveals that ancient civilizations achieved levels of nautical engineering and navigational skill far exceeding common assumptions. Phoenician sailors may have circumnavigated Africa ~6
F_4_02 — Ancient Maps and Impossible Cartography
A handful of historical maps appear to depict geographic features that, according to conventional history, were unknown at the time of their creation. The Piri Reis Map (1513) shows what may be the coastline of Antarctic
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