How We Measured This

Full transparency into how convergence scores are calculated, how cultural independence is modeled, and where the limitations lie.

The Approach in Plain Language

We extracted claims about the afterlife, the soul, and the purpose of existence from 30 religious and philosophical traditions. Each tradition's position on 13 sub-questions was recorded as a weighted vote, reflecting how strongly and consistently the tradition endorses that position.

To measure whether agreement is meaningful, we group traditions into 9 cultural clusters that share historical roots. Agreement within a cluster (e.g., Hinduism and Buddhism both affirming reincarnation) is interesting but expected. Agreement across independent clusters is far more significant. Our Effective Independent Witness (EIW) score captures this by weighting cross-cluster convergence more heavily.

Finally, where near-death experience research independently corroborates a position that traditions converge on, we apply a modest NDE boost. This reflects the evidential value of empirical data aligning with cross-cultural claims.

The Convergence Formula

EIW = Σ (cluster_weight × max(tradition_vote_weight)) for each cluster

Confidence = (EIW / MAX_EIW) × evidence_quality × (1 + nde_boost)

Worked Example: Q3.1 — Full Survival

26 of 30 traditions affirm full survival of consciousness after death, spanning 8 of 9 cultural clusters.

Cluster	Traditions	Weight	Contribution
South Asian	5	1.80	1.80
Abrahamic	4	1.80	1.80
Western Esoteric	5	1.50	1.50
African/Egyptian/Meso	3	1.50	1.50
Iranian	2	1.50	1.50
East Asian	3	1.50	1.50
Modern Empirical	2	1.25	1.25
Singleton	2	0.80	0.80

EIW = 11.65

MAX_EIW = 13.50

Evidence Quality = 0.92

NDE Boost = 0.08

Final Confidence = 0.86 (11.65 / 13.50) × 0.92 × (1 + 0.08)

Interactive Calculator

Sub-question

Position

Cultural Independence Model

Traditions are grouped into clusters based on historical and geographical relationships. Explore the three visualization modes to understand how independence is modeled.

Data Sources

Tradition	Cluster	Claims
Baha'i	Abrahamic	91
Christianity	Abrahamic	348
Christianity (Swedenborgianism)	Abrahamic	125
Druze	Abrahamic	12
Islam	Abrahamic	310
Judaism	Abrahamic	31
Kabbalah	Abrahamic	126
Mormonism/LDS	Abrahamic	525
Sufism	Abrahamic	85
Ancient Egyptian	African/Egyptian/Mesoamerican	115
Aztec/Mesoamerican	African/Egyptian/Mesoamerican	51
Yoruba/Ifa	African/Egyptian/Mesoamerican	24
Shintoism	East Asian	52
Taoism	East Asian	72
Scientific Materialism	Empirical/Scientific	0
Indigenous Australian	Indigenous Australian	75
Mandaeism	Iranian	183
Manichaeism	Iranian	25
Zoroastrianism	Iranian	65
Spiritism	Modern Empirical	173
Siberian Shamanic	Siberian Shamanic	51
Buddhism	South Asian	109
Hinduism	South Asian	65
Jainism	South Asian	75
Sikhism	South Asian	528
Gnosticism	Western Esoteric	143
Greek Philosophy	Western Esoteric	148
Hermeticism	Western Esoteric	27
Neoplatonism	Western Esoteric	62
Orphism	Western Esoteric	30
Theosophy	Western Esoteric	62

Limitations

What Convergence Cannot Tell Us

Convergence is correlation, not causation. Shared conclusions could reflect shared cognitive biases, historical diffusion, or genuine independent discovery. We cannot distinguish these from convergence data alone.

Source Coverage Gaps

Not all traditions have equal textual coverage. Some (Judaism, Manichaeism, Hinduism, Gnosticism) have critical gaps in source texts that may distort their convergence profiles.

Extraction Methodology

Claims were extracted from translated texts using automated methods. Translation choices, interpretation, and the canonical position taxonomy all introduce potential bias.

Cultural Independence Assumptions

Our cluster model approximates independence. Historical interactions between traditions (e.g., Hindu-Buddhist exchange, Abrahamic shared heritage) mean within-cluster independence is imperfect.