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Liberal Arts & Reasoning

Orientation and the Ideal

1. Liberal Arts and Reasoning: Start HereA map of the wing: why a modern learner might study reasoning, reading, number and making together, the ten-step operating loop, and which page to read first.5 min read · about 7 min aloud
2. The Nine Powers: What a Whole Education Keeps AskingNine questions a complete programme of study keeps asking, from ends to moral imagination, how each power covers a blind spot in the others, and how to use the list as a checklist and a reading rotation.6 min read · about 9 min aloud
3. The Philosopher-Engineer: Study and Workshop TogetherDefines the philosopher-engineer ideal and the five working habits shared by notable polymaths, as a model any learner can adopt.4 min read · about 6 min aloud

Study Methods

1. The Weekly Loop: Read, Reconstruct, Make, Defend, LogA five-step weekly study method that turns reading into evidence of understanding, with argument reconstruction, a review routine, and rules for using AI as tutor rather than author.4 min read · about 6 min aloud
2. How to Read a Great Book: Levels, Modes and the Completion StandardA practical guide to reading difficult primary texts, and a per-book output standard that converts reading into durable understanding.6 min read · about 8 min aloud
3. Principles Ledger and Question ArcsA method for organising study around one guiding question per quarter and recording durable principles as atomic, teachable notes.6 min read · about 8 min aloud
4. Deliberate Practice for Learning and MasteryA cycle of attempt, feedback, correction and later testing, drawn from Ericsson's research and from Hogan, Clear, Leonard and Young, with the limits of each.6 min read · about 9 min aloud

Knowledge and Belief

1. Peirce on the Fixation of BeliefA guided reading of Charles Sanders Peirce's 1877 essay on four ways of settling belief, with a worked argument reconstruction.5 min read · about 6 min aloud
2. What Does It Take to Know Something?A six-text reading path on knowledge and justified belief, from Peirce to Gettier, with a writing prompt for each stop.5 min read · about 6 min aloud
3. The Seven Liberal Arts, Hands-On: Logic, Proof and the QuadriviumA practical guide to the trivium and quadrivium, with a practice and a made thing for each art, plus a path through Socratic questioning, Aristotle's logic and Euclid's method.7 min read · about 9 min aloud
4. The Order of the Seven Liberal Arts: Substance, Quantity and the MindWhy the seven liberal arts are arts of a free mind and why they stand in this order: the classical definitions, Nicomachus's division of quantity, and the later scholastic reading that grounds the trivium in substance, with its limits.6 min read · about 9 min aloud

The Reasoning Loop in Practice

1. Observe, Define, Represent: The First Three MovesHow to separate observation from interpretation, ask what exactly we mean, and choose a representation that exposes structure.6 min read · about 8 min aloud
2. Hypotheses, Predictions and TestsHow to generate several competing explanations, derive checkable consequences, and commit to predictions before looking at the result.6 min read · about 8 min aloud
3. Judgment Under Uncertainty: Probability, Causation and ForecastingA curated path from Hume and Popper to Bayes, Kahneman, Pearl, Taleb and Tetlock for reasoning and deciding when certainty is unavailable.6 min read · about 9 min aloud
4. Systems, Decisions and Robust DesignA reading-and-practice path through cybernetics, systems dynamics and failure studies for seeing behaviour as the output of structure and designing so that being wrong is survivable.6 min read · about 8 min aloud

Ends, Wisdom and Technology

1. Technology, AI and Human JudgmentA reading path through information theory, computation, machine learning and the critics of technique, with rules for using AI to sharpen study without surrendering the struggle that builds ability.7 min read · about 9 min aloud
2. Reasoning for What Ends? Wisdom, Character and the Examined LifeWhy instrumental reasoning needs a philosophical layer: ends, practical wisdom and the character needed to use powerful tools well, with a thematic reading path on virtue, mortality and purpose.6 min read · about 8 min aloud

Mathematics, Systems & Languages

Orientation and the Map

1. Mathematics: Start HereAn orientation to the mathematics wing: why a spine beats a survey, how the trivium frames mathematical work, and which page to read for which need.6 min read · about 9 min aloud
2. A Map of Mathematics: Twenty-Five Areas and What Depends on WhatA guided tour of the branches of mathematics in learning order, with prerequisites and the philosophical and engineering parallels of each.5 min read · about 7 min aloud

How to Learn Mathematics

1. Placement, Repair and Retention: Keeping Mathematics AliveHow to place yourself honestly in mathematics, repair only what fails, and keep skills alive with spaced retrieval.6 min read · about 8 min aloud
2. Learning Mathematics: Procedures and the Six AbilitiesA five-step method for learning a procedure so that it lasts, and the six separable abilities that show whether you really understand it.6 min read · about 8 min aloud
3. Proof and Precise Reasoning: From Arguments to TheoremsThe grammar of valid inference: validity and soundness, truth tables, quantifiers, the main proof techniques and counterexamples, framed by the trivium habit of defining, testing and explaining.7 min read · about 9 min aloud

The School Sequence

1. Algebra: The Skills That Carry EverythingThe dependency groups of school algebra and the reasons behind each rule, so that errors become diagnosable instead of mysterious.6 min read · about 8 min aloud
2. Geometry, Euclid and TrigonometryThe bridge from classical geometry to trigonometry and precalculus, including a track for studying Euclid and Apollonius by reconstruction.5 min read · about 7 min aloud
3. Calculus and Beyond: Change, Structure and UncertaintyWhat calculus, linear algebra, multivariable calculus, differential equations and statistics each accomplish, with gates a learner can use to check understanding.5 min read · about 7 min aloud

Structures, Uncertainty and Systems

1. Discrete Mathematics and Graphs: Counting, Relations and NetworksSets, relations, counting, induction, recurrences, graphs and trees, data modelling, and the discipline of separating an algorithm's result from a proof that it works.6 min read · about 8 min aloud
2. Mathematics for Better DecisionsA tiered curriculum of the practical mathematics that protects you from being fooled by numbers, risk and scale.5 min read · about 7 min aloud
3. Systems Thinking: Feedback, Queues, Information and DynamicsHow to reason about change, feedback and uncertainty in real systems, and where the limits of models lie.7 min read · about 9 min aloud
4. Twelve-Week Arcs and the Capstone Project MethodA 48-week study sequence with end-of-arc deliverables, and a reusable capstone method for a data-and-model project that proves understanding.6 min read · about 8 min aloud

Language as a Craft

1. English Expression Mastery: Words, Sentences, Paragraphs and SpeechA twelve-week, three-hours-a-week method for clearer thinking on the page and in speech, with exercises that keep claims honest.7 min read · about 9 min aloud
2. Choosing a Language to Study for Reading: Latin, Greek, French, German and BeyondA text-first framework for choosing which language to learn for philosophy and reading, replacing scoreboard rankings with evidence-aware guidance.5 min read · about 7 min aloud

The Heavens

1. The Sky as a Sphere: Days, Seasons and the Phases of the MoonThe celestial sphere as a model of the sky, and how it explains the day, the seasons, the phases of the Moon and why eclipses do not happen every month.7 min read · about 9 min aloud
2. Eratosthenes Measures the Earth: Shadows, Angles and Stated AssumptionsHow Eratosthenes, as Cleomedes reports him, turned a shadow angle and a distance into the size of the Earth, with every assumption listed and the uncertain length of the stade stated plainly.6 min read · about 9 min aloud
3. Models of the Heavens: Ptolemy, Copernicus, Tycho and KeplerHow four models of the heavens were built to save the same sky, what each explained, and four ways to judge one model better than another (an interpretation).7 min read · about 9 min aloud

Health & Nutrition

Orientation

1. Health and Nutrition: Start HereAn orientation to a simple, sustainable routine of strength, walking, whole-food eating and sleep, and to the evidence-first way this wing studies health.5 min read · about 7 min aloud

Movement and Training

1. Strength Training for Busy Lives: The Recovery-Based CycleA method for building strength with two alternating full-body sessions scheduled by recovery rather than weekday, and progressed by double progression.6 min read · about 8 min aloud
2. Daily Walking and Easy CardioHow to build a daily step habit and use conversational-pace cardio as a low-stress aerobic base, without creating exercise debt.6 min read · about 8 min aloud

Eating Patterns

1. A Plant-Based Eating Framework You Can RepeatA practical method for building satisfying, repeatable vegan meals around plant protein, starch and produce, with a view of what the evidence does and does not show.6 min read · about 9 min aloud
2. The Daily Dozen and Roles Over IngredientsA category-based eating checklist and a substitution method: commit to nutritional roles and treat individual foods as interchangeable choices.7 min read · about 9 min aloud
3. Protein for Muscle on a Plant-Based DietHow to estimate a protein target, spread it across meals, and use common plant foods to reach it, with the research limits stated.6 min read · about 8 min aloud
4. Nutrient Coverage on a Plant-Based DietThe nutrients that need deliberate planning (B12, iodine, calcium, vitamin D, omega-3, protein, iron, zinc, selenium), general adult reference values, and how to check coverage.5 min read · about 7 min aloud

Kitchen and Body Composition

1. The Practical Kitchen: Staples, Meal Prep and Food SafetyHow to stock a low-waste, affordable plant-forward kitchen from frozen, canned, dry and durable fresh foods, prepare it in batches, and store and reheat food safely.5 min read · about 6 min aloud
2. Gradual Fat Loss and Maintenance: A MethodA three-phase method for reducing body fat while protecting muscle, then maintaining, judged by multi-week trends instead of daily numbers.5 min read · about 7 min aloud

Judging the Evidence

1. Reading Nutrition Evidence: What a Study Can and Cannot ShowA critical-thinking lesson using real food-science examples to separate trials, biomarkers, observational links, mechanisms and hype.4 min read · about 6 min aloud
2. How to Rank Foods Honestly: A Transparent Scoring MethodA method for building a weighted food ranking, with five criteria, ANDI as one limited input, and rules for admitting uncertainty.7 min read · about 9 min aloud
3. Neuroplasticity for Learning and Brain HealthWhat neuroplasticity does and does not promise an adult learner, and how to turn it into specific practice, honest tests of transfer, sleep and exercise.6 min read · about 8 min aloud

Engineering & Career

Orientation and Method

1. Engineering and Career: Start HereAn orientation to the wing: why engineering is treated as a liberal art, and a map of the pages that follow.5 min read · about 7 min aloud
2. Deliberate Practice: Choose Targets You Can ObserveA method for turning vague study goals into testable targets and running a six-step loop: attempt, inspect, find the first consequential error, repair only that, vary one condition and return later.6 min read · about 8 min aloud

Reasoning About Systems

1. Evidence-Based Troubleshooting: Separating ExplanationsFour drills that teach you to ask what an observation actually establishes and to choose the next test that splits competing causes.6 min read · about 8 min aloud
2. Stale Information and Dependable ReportsWhy caches, identity-to-address mappings and monitoring samples are stored claims about the world, and how to design a report that cannot lie.6 min read · about 8 min aloud
3. Quantitative Reasoning with Stated AssumptionsWorked examples in rates, packet sizes, recovery time and cost ledgers that show arithmetic is only as good as the assumptions you state.6 min read · about 8 min aloud

Working with AI

1. Working with AI Coding Agents: A Disciplined LoopA responsible workflow for using coding agents: spec first, plan first, review every diff, verify, and commit known-good states.6 min read · about 8 min aloud
2. From Assistant to Agent: Tools, MCP and EvaluationA four-stage path from assisted coding through a deterministic workflow and retrieval to one bounded tool-using agent, with evaluation against a non-AI baseline at every step.6 min read · about 8 min aloud

Communication and Career

1. Technical Writing as ReasoningA five-step method for writing recommendations that separate observation from inference and that someone else can act on.5 min read · about 7 min aloud
2. Building a Career on Capabilities, Not ToolsA general guide to choosing certifications, courses, projects and books so that skill compounds instead of sprawling.6 min read · about 8 min aloud