Islam vs Evolution/Naturalism vs Agnosticism: Faithscore Comparison

Side-by-side evidence-based comparison of Islam, Evolution/Naturalism, Agnosticism using Faithscore's six weighted evidentiary criteria. Same rubric, applied uniformly.

Overall scores

  • IslamFaithscore 58/100 (Abrahamic Faith, 1.9 billion followers)
  • Evolution/NaturalismFaithscore 12/100 (Modern Worldview, 1 billion followers)
  • AgnosticismFaithscore 35/100 (Modern Worldview, 600 million followers)

Highest aggregate Faithscore: Islam (58/100). The compared field spans 46 points across the same uniform rubric.

Comparative analysis

This comparison evaluates Islam and Evolution/Naturalism and Agnosticism against the same six weighted evidentiary criteria — textual fidelity, historical verification, scientific testability, internal consistency, prophetic accuracy, and explanatory power — that Faithscore applies to all 313 systems in its registry. Aggregated across those criteria, Islam receives the highest overall score (58/100), indicating limited support, with notable gaps in historical or predictive verification. Evolution/Naturalism receives the lowest of the compared systems (12/100), indicating failing support across most weighted criteria when scored against verifiable evidence. The arithmetic mean across the comparison is 35/100.

The 46-point spread is large enough that the ranking is unlikely to invert under reasonable methodological adjustments. The lower-scoring system has structural gaps in multiple criteria, not merely lower performance in one. Adherent counts are within an order of magnitude across the systems compared, so demographic weight is not a confounding factor in the comparison. The systems compared belong to different worldview categories, so the ranking should be read as a cross-category evaluation against a single uniform rubric — not as an artifact of category-specific assumptions.

It is important to note what this comparison does not claim. A higher Faithscore is not a metaphysical proof; it is a structured summary of how a system performs on six measurable axes the framework treats as evidentially relevant. Sincere adherents may reasonably weight criteria differently than this rubric does, and a low score on one criterion does not negate the explanatory or experiential value a tradition has for its community. The methodology is published in full and the per-criterion scores are reproducible from the cited source data, so any disagreement can be located precisely — at the rubric level, the criterion level, or the underlying evidence level.

Criterion-by-criterion breakdown

Each of the six weighted criteria, scored independently. The system with the higher score on each row is noted; aggregate ranking follows from the weighted total, not from a simple count of category wins.

  • Textual fidelityIslam 60/100 vs Evolution/Naturalism 10/100 vs Agnosticism 30/100. Higher: Islam. preservation, manuscript count, and accuracy of source documents
  • Historical verificationIslam 75/100 vs Evolution/Naturalism 25/100 vs Agnosticism 50/100. Higher: Islam. independent corroboration, hostile-witness testimony, archaeological confirmation
  • Scientific testabilityIslam 55/100 vs Evolution/Naturalism 12/100 vs Agnosticism 32/100. Higher: Islam. falsifiable claims, observable evidence, repeatable predictions
  • Internal consistencyIslam 45/100 vs Evolution/Naturalism 8/100 vs Agnosticism 45/100. Higher: Islam. logical coherence of doctrine and absence of contradiction
  • Prophetic accuracyIslam 65/100 vs Evolution/Naturalism 15/100 vs Agnosticism 30/100. Higher: Islam. ratio of fulfilled to unfulfilled predictions, dated against earliest manuscripts
  • Explanatory powerIslam 50/100 vs Evolution/Naturalism 5/100 vs Agnosticism 25/100. Higher: Islam. how well the system accounts for the breadth of human experience

How the comparison is scored

  • Textual fidelity — preservation, manuscript count, and accuracy of source documents.
  • Historical verification — independent corroboration, hostile-witness testimony, archaeological confirmation.
  • Scientific testability — falsifiable claims, observable evidence, repeatable predictions.
  • Internal consistency — logical coherence of doctrine and absence of contradiction.
  • Prophetic accuracy — ratio of fulfilled to unfulfilled predictions, dated against earliest manuscripts.
  • Explanatory power — how well the system accounts for the breadth of human experience.

Faithscore applies court-like evidentiary standards across six weighted criteria. Every system is scored against the same rubric — religious or philosophical — to surface objective comparisons. Read the full methodology.

Jump to the per-criterion breakdown above:

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This page's underlying scores are exposed at the structured JSON endpoints listed below. Citation: "Data: faithscore.org (CC BY 4.0)".

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