Rationalism Course

Lesson 1 • Historical Origins of Rationalist Philosophy

Traces rationalism from ancient Greek logic through early modern philosophy. Students identify key thinkers and the problems each addressed using reason.

Lesson 2 • Defining Rationalism and Its Scope

Rationalism is defined as the view that reason is the primary source of knowledge. This section anchors the course by contrasting it with empiricism and intuition-based thinking.

Lesson 3 • Core Rationalist Principles

Introduces a priori knowledge, innate ideas, and the principle of sufficient reason. These principles serve as the conceptual toolkit for all subsequent chapters.

Lesson 1 • Inductive and Abductive Reasoning

Contrasts inductive strength with deductive certainty and introduces abductive inference to the best explanation. Students learn when each reasoning mode is appropriate.

Lesson 2 • Propositional Logic Fundamentals

Covers truth values, logical connectives, and truth tables. Mastery here enables students to formalise everyday arguments into evaluable logical forms.

Lesson 3 • Identifying and Avoiding Fallacies

Catalogues formal and informal fallacies that undermine rational discourse. Students practice detecting fallacies in written and spoken arguments.

Lesson 4 • Deductive Reasoning and Validity

Examines valid argument forms including modus ponens and modus tollens. Students distinguish validity from soundness and apply these standards to real arguments.

Lesson 1 • Evaluating Evidence Quality

Establishes criteria for assessing evidence strength, relevance, and reliability. Students learn to rank evidence types and identify gaps in argumentative support.

Lesson 2 • Cognitive Biases and Rational Errors

Surveys major cognitive biases that distort rational judgment. Students develop metacognitive strategies to detect and mitigate bias in their own reasoning.

Lesson 3 • Standards of Intellectual Rigour

Defines intellectual virtues such as precision, consistency, and intellectual honesty. Students apply these standards to self-assess and improve their reasoning quality.

Lesson 4 • Scepticism as a Rational Tool

Distinguishes productive scepticism from corrosive doubt and applies it as a quality-control mechanism. Students practice calibrated scepticism without falling into paralysis.

Lesson 1 • Group Decision-Making Rationality

Analyses how group dynamics distort individual rational judgment and introduces structured group decision methods. Students apply techniques to reduce groupthink and social pressure.

Lesson 2 • Cost-Benefit and Trade-off Analysis

Applies rational comparison of costs and benefits to complex decisions. Students learn to quantify intangibles and handle multi-criteria trade-offs systematically.

Lesson 3 • Heuristics, Biases, and Decision Traps

Examines how heuristics speed decisions but introduce systematic errors. Students identify sunk-cost fallacy, loss aversion, and other traps that corrupt rational choice.

Lesson 4 • Decision Theory Basics

Introduces expected utility, decision matrices, and the rationality of maximising value. Students build decision models for choices with known and unknown probabilities.

Lesson 1 • Statistical Reasoning for Rationalists

Covers probability distributions, significance testing, and effect sizes as tools for rational inference. Students interpret statistical results without common misreadings.

Lesson 2 • The Scientific Method as Rational Inquiry

Presents the scientific method as a formalised rationalist procedure for generating reliable knowledge. Students trace the cycle from observation to theory revision.

Lesson 3 • Evaluating Scientific Claims and Studies

Teaches students to critically appraise research design, sample quality, and replication status. Students apply a structured checklist to published studies and media reports.

Lesson 4 • Falsificationism and Testability

Introduces Popper's falsificationism as the demarcation criterion between science and non-science. Students evaluate claims for testability and identify unfalsifiable assertions.

Lesson 1 • Responding to Objections Rationally

Covers strategies for addressing counterarguments without resorting to fallacies or emotional appeals. Students practice structured rebuttal techniques in simulated debates.

Lesson 2 • Charitable Interpretation and Steel-Manning

Teaches the principle of charity and the steel-man technique as tools for productive rational discourse. Students practice strengthening opposing arguments before refuting them.

Lesson 3 • Anatomy of a Strong Argument

Breaks down the components of a well-formed argument including claims, grounds, warrants, and backing. Students apply the Toulmin model to build structured arguments.

Lesson 4 • Written and Oral Rational Argumentation

Applies argumentation skills to written essays and oral presentations. Students produce a complete rational argument in both formats and receive structured peer feedback.

Lesson 1 • Case Studies in Professional Rationalism

Applies all prior frameworks to extended case studies from business, science, and policy. Students diagnose reasoning failures and propose rational alternatives.

Lesson 2 • Rational Planning and Forecasting

Applies decision theory and probabilistic thinking to project planning and forecasting. Students build plans that account for uncertainty and include explicit assumptions.

Lesson 3 • Rational Communication with Stakeholders

Adapts rational argumentation for audiences with varying expertise and interests. Students practice translating technical reasoning into accessible, persuasive communication.

Lesson 4 • Evaluating Policies and Proposals Rationally

Provides a rational framework for assessing organisational policies and proposals. Students apply cost-benefit analysis and logical consistency checks to real proposals.

Lesson 1 • Critiques of Pure Rationalism

Surveys major philosophical and empirical critiques of rationalism including bounded rationality and embodied cognition. Students evaluate which critiques require revising rationalist commitments.

Lesson 2 • Uncertainty, Complexity, and Rational Humility

Addresses how deep uncertainty and complex systems challenge confident rational conclusions. Students practice expressing calibrated confidence and updating under radical uncertainty.

Lesson 3 • Building a Lifelong Rational Practice

Synthesises the course into a personal rationalist practice framework. Students design a self-improvement plan for sustaining and deepening rational thinking over time.

Lesson 4 • Rationalism and Moral Reasoning

Applies rationalist methods to ethical questions and examines the limits of purely rational ethics. Students compare deontological and consequentialist frameworks as rational moral systems.