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.
Marcus Vitruvius Pollio (Vitruvius)
Firmitas, utilitas, venustas — architecture as the liberal art that integrates structure, function, and beauty
Attribute Fingerprint
Rows where personas disagree are highlighted in gold. The full ontology grid (32 attributes) is shown.
| Attribute | Marcus Vitruvius Pollio (Vitruvius) |
|---|---|
| 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 | Finite |
| Space · Ontological Status | Substantival |
| Space · Curvature | Flat |
| Space · Dimensionality | Three |
| Space · Locality | Local |
| Matter · Extent | Finite |
| 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 | Total |
| Observer · Physicality | Embodied |
| Observer · Agency | Active |
| Observer · Number | Plural |
| Observer · Metaphysical Agency | not engaged |
| Observer · Moral Authority | Reason |
| Observer · Theological Method | N/A |
| Energy · Extent | Finite |
| Energy · Ontological Status | Substantival |
| Energy · Conservation | Conserved |
| Energy · Dispersibility | Reversible |
| Information · Ontological Status | Substantival |
| Information · Cosmic Conservation | Conserved |
| Information · Personal Conservation | not engaged |
| Information · Granularity | Continuous |
Dimension-by-Dimension Evidence
What each persona's writings reveal about their stance on each of the six dimensions.
Time
Marcus Vitruvius Pollio (Vitruvius)
Time is substantival, linear, and progressive: architecture improves through accumulated tradition. Vitruvius surveys the history of Greek and Roman building as a story of refinement. Buildings endure through time — firmitas is resistance to temporal decay.
Space
Marcus Vitruvius Pollio (Vitruvius)
Space is Vitruvius's medium. Architecture organises three-dimensional space according to geometric and harmonic principles. Space is flat (Euclidean geometry governs all proportions), local, and finite. The human body's proportions serve as a spatial module.
Matter
Marcus Vitruvius Pollio (Vitruvius)
Substantival, finite, conserved, local. Vitruvius devotes extensive attention to building materials — stone, brick, timber, lime, pozzolana — treating each as having definite physical properties that the architect must know. "A building is a body, just like any other." (De Architectura II)
Observer
Marcus Vitruvius Pollio (Vitruvius)
The architect is an active, embodied, educated observer who integrates diverse knowledge into unified design. Beauty is objective — the result of correct proportion — but perceptible only to the trained eye. Vitruvius does not theologise; metaphysical agency is unaddressed.
Energy
Marcus Vitruvius Pollio (Vitruvius)
Mechanical energy is central to Books IX–X: water power, hoisting machines, catapults. Energy is finite, conserved (mechanical advantage does not create force), and reversible in the case of machines with symmetric operation.
Information
Marcus Vitruvius Pollio (Vitruvius)
Architectural knowledge is substantival and conservable: Vitruvius compiles Greek and Roman tradition into a written treatise explicitly to preserve it for posterity. The act of writing De Architectura is itself an argument that technical information should be codified and transmitted.
Internal Tensions
Where each persona's working synthesis strains against itself.
Vitruvius's central tension is between the ideal of architecture as liberal art and the reality of architectural practice as a trade. He insists on the architect's philosophical education but describes a profession that was in practice dominated by craftsmen and contractors. His own career as a military engineer sits uneasily with his aspiration to the status of a Hellenistic intellectual. The triad firmitas-utilitas-venustas itself encodes the tension: beauty is listed last and is the hardest to achieve.