Central Exhibit

A map for the distance between evidence, perception, and belief.

Credencing is the practice of matching confidence to evidence. Explore Bayesian reasoning, belief calibration, and the difference between Deep Rationality and Core Rationality through an interactive model, practical guides, and case studies.

0%100%Epistemic gradient: assigned credence0-100% confidence scale used by the epistemic agentSD depth20%40%60%80%100%
Objective Evidence (E0)
Perceived Evidence (EP)
Deep Rationality (SD)

Suggested Reading Paths

Three ways into the site

20-Minute Path

A quick orientation for first-time visitors.

Teacher Path

Materials and pages for classroom or workshop use.

Why Study Credencing?

Belief is not a binary toggle; it is our dynamic orientation toward changing realities. We call this process Credencing.

The model helps separate failures of skill from failures of will: what the evidence is, what an agent perceives, what they finally believe, and how much rational resolution they bring to the task.

Deep Rationality

The skill axis: math, logic, probability, and inferential tools for seeing through epistemic fog.

Core Rationality

The will axis: the fortitude to align belief with what one actually takes the evidence to show.

Unbundling Failure

Traditional labels often blur the honest novice and the biased expert. Credencing keeps those failures separate so each can be diagnosed more precisely.

Concept Diagrams

Three ways to see the model

Evidence Flow

E0
EP
CA

Objective evidence becomes perceived evidence, then assigned credence. The project studies where this flow bends.

Core vs Deep

Ideal Agent
Biased Expert
Honest Novice
Delusion Risk

Skill and integrity are separate axes. Intelligence alone does not guarantee calibrated belief.

Action Threshold

uncertainact?strong

Credence and action threshold are distinct. High stakes can require more confidence without changing the evidence.

Featured Paths

The surrounding web

Start Here

A guided entry into credences, evidence, confidence, Bayesian updating, and the difference between being mistaken and being epistemically inconsistent.

2 clusters / 7 pages

Core Ideas

The conceptual vocabulary behind the model: priors, likelihoods, posteriors, uncertainty, objective evidence, perceived evidence, assigned credence, and rationality types.

3 clusters / 21 pages

Bayes Theorem

A dedicated walkthrough of Bayes theorem, its formula, its mental parts, and how scientists use it to revise confidence.

2 clusters / 9 pages

Interactive Lab

The live model, scenario presets, visual legend, comparison tools, and an interpretation guide for reading epistemic states.

3 clusters / 11 pages

Case Studies

Concrete examples of epistemic failure and repair in reasoning, institutions, media, medicine, politics, and ordinary judgment.

3 clusters / 11 pages

Skills

Practical exercises for thinking in credences, updating with new evidence, estimating priors, avoiding base-rate neglect, and asking better questions.

2 clusters / 12 pages

Discussion Groups

Session plans, discussion questions, scenarios, historical examples, and facilitator guidance for groups studying credencing together.

2 clusters / 10 pages

Applications

Where credencing matters: science, medicine, journalism, law, public debate, AI alignment, personal decisions, and institutional diagnostics.

2 clusters / 10 pages

Library

Books, papers, essays, glossary entries, references, visual archive, teaching materials, downloads, and project notes.

4 clusters / 50 pages

About

Project overview, methodological commitments, intended use, author notes, contact, and future directions.

2 clusters / 8 pages