Epistemic Knowledge Substrate

A suite of live, interactable models exploring the foundational formalisms through which knowledge is represented, organized, and reasoned about. All models run entirely in the browser — no backend required.

Knowledge Belief Truth Evidence Reason
Entity–Relation Graph

Knowledge Graph Explorer

Force-directed Add/Remove nodes Filter Search

Explore 20 epistemic concepts and 30 typed relations in a dynamic force-directed graph. Click nodes to inspect definitions, filter by type, search concepts, and add your own nodes and edges.

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Mind Language Logic Network
Typed-Edge Concept Network

Semantic Network Visualizer

Curved edges Typed relations Path finding Domain filter

25 cross-domain concepts (philosophy, linguistics, biology, theory) connected by color-coded typed edges. Find shortest paths between concepts with one click, filter by relation and domain.

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Entity Abstract Concrete Mental Prop. Physical
Class Hierarchy (OWL-style)

Ontology Browser

Tree + graph Inheritance Properties Instances

Browse a 15-class OWL-style ontology of epistemic entities. The left panel shows a collapsible class hierarchy; the right graph visualizes subclass relations. Click any class to see inherited properties and instances.

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12% 60% 73% 68% 44% Bias Reliable Justified Evidence Knowledge
Probabilistic Graphical Model

Bayesian Belief Network

Exact inference Set evidence Belief propagation CPT viewer

An 8-node Bayesian network modeling the epistemic chain from reliable sources to social knowledge. Set evidence on any node (observe True/False) and watch posterior probabilities propagate in real time.

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EPISTEMIC Percep. Testim. Justif. Know. BIOLOGICAL Genot. Envir. Adapt. Fitness LEGAL Alleg. Preced. Argum. Verdict
Graph Isomorphism / Vocabulary Mapping

Structure Isomorphism Explorer

Small multiples Cross-panel hover 5 vocabularies 3 templates

The same graph topology rendered simultaneously across five domain vocabularies — epistemic, biological, social, computational, legal. Hover any node to highlight its structural counterpart in every panel, making isomorphism visible rather than abstract.

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RAG CHUNKS sim: 0.91 ...justified true belief is... sim: 0.77 ...knowledge requires... sim: 0.62 ...virtue epistemology... 487 tokens SUBGRAPH Justif. a3f7c2 Belief d5a310 Truth e77b33 Know. c88f04 58 tokens
Retrieval Strategy Comparison

RAG Chunks vs. Subgraph Retrieval

Token efficiency Hash reasoning Animated retrieval 3 queries

The same knowledge expressed two ways: flat text chunks retrieved by cosine similarity vs. typed subgraphs retrieved by hash lookup. Compare token costs, relation fidelity, and why an agent reasons more reliably when given a hash than a paragraph.

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