Persona Classification Layer
Compare Personas
Pick two or more historical figures to set their attribute fingerprints, dimension-by-dimension evidence, and shared school influences side by side.
David Lewis
Modal realism — all possible worlds are real worlds, no less real than the actual one
Attribute Fingerprint
Rows where personas disagree are highlighted in gold. The full ontology grid (32 attributes) is shown.
| Attribute | David Lewis |
|---|---|
| Time · Extent | Infinite |
| Time · Ontological Status | Substantival |
| Time · Grain | Continuous |
| Time · Freedom | Deterministic |
| Time · Traversability | Linear |
| Time · Dimensionality | One |
| Time · Direction | Uni-directional |
| Space · Extent | Infinite |
| Space · Ontological Status | Substantival |
| Space · Curvature | Flat |
| Space · Dimensionality | Three |
| Space · Locality | Local |
| Matter · Extent | Infinite |
| Matter · Ontological Status | Substantival |
| Matter · Conservation | Conserved |
| Matter · Dimensionality | Three |
| Matter · Locality | Local |
| Observer · Time Instance | Single |
| Observer · Space Instance | Single |
| Observer · Knowledge Extent | Mediated |
| Observer · Knowledge Retainment | Partial |
| Observer · Physicality | Embodied |
| Observer · Agency | Active |
| Observer · Number | Plural |
| Observer · Metaphysical Agency | None |
| Observer · Moral Authority | Reason |
| Observer · Theological Method | N/A |
| Energy · Extent | Infinite |
| Energy · Ontological Status | Substantival |
| Energy · Conservation | Conserved |
| Energy · Dispersibility | Irreversible |
| Information · Ontological Status | Substantival |
| Information · Cosmic Conservation | Conserved |
| Information · Personal Conservation | Non-conserved |
| Information · Granularity | Continuous |
Dimension-by-Dimension Evidence
What each persona's writings reveal about their stance on each of the six dimensions.
Time
David Lewis
B-theoretic eternalism within each world; four-dimensional persistence through temporal parts.
Space
David Lewis
Standard substantival space within each of the infinitely many concrete worlds.
Matter
David Lewis
Standard substantival matter; the local-qualities mosaic of Humean supervenience.
Observer
David Lewis
Plural finite observers in each world; mediated knowledge through inference. No metaphysical agency.
Energy
David Lewis
Standard physics.
Information
David Lewis
Information conserved at the world-scale; personal soul not.
Internal Tensions
Where each persona's working synthesis strains against itself.
Lewis's modal realism — the "incredulous stare" objection — is the position most analytic philosophers find difficult to accept while granting its systematic power. The cost is high (infinitely many concrete worlds, none observable from any other), the benefits are real (the cleanest account of modal claims, counterfactuals, and propositions). The Humean-supervenience programme has been challenged by quantum-mechanical and dispositional-essentialist arguments that Lewis took seriously without conceding.