The modern internet optimises for time spent, not for whether you end up sharper. This is the correction: an open index of the reading, lectures and papers that actually repay attention — across every subject of human knowledge.
Nothing is generated. Nothing is ranked by engagement. Every entry names a real source you can go and check. Browse the directory below, drill down as far as you like, and follow the link to the original.
Every link is fetched and checked on a schedule — 4,643 of 5,236 so far, most recently on 17 September 2026. When a free copy moves or dies we go and find it again, and the repairs are published.
Today’s work · 27 September
Intergovernmental Panel on Climate Change · 2022 · report
Argues that adapting cities to climate change requires redesigning infrastructure and buildings around compound and cascading risks together, because hazards such as heat, flooding and drought interact in dense settlements in ways single-hazard planning misses.
The Directory
39 domains open into 449 distinct fields and 4,673 topics. Engineering separates into mechanical, aerospace, electrical and seventeen more. History separates by period and region, then by civilisation. Nothing is left as a catch-all.
The study of structure, quantity, change and space — and the only field where a result, once proved, stays proved.
Foundations & Logic · Algebra · Number Theory · Analysis
The search for the smallest set of rules that accounts for everything that happens.
Classical Mechanics · Electromagnetism · Thermodynamics & Statistical Mechanics · Quantum Mechanics
The science of substances, their transformations, and the bonds that make matter interesting.
Physical Chemistry · Organic Chemistry · Inorganic Chemistry · Analytical Chemistry
Everything above the atmosphere: what is out there, how it got there, and how we get to it.
Observational Astronomy · Planetary Science · Stellar Astrophysics · Galactic & Extragalactic Astronomy
The planet as a coupled physical, chemical and biological system operating on deep time.
Geology · Geophysics · Oceanography · Atmospheric Science & Meteorology
Reasoning under uncertainty — the discipline most often invoked and least often applied correctly.
Statistical Inference · Bayesian Statistics · Causal Inference · Experimental Design
What can be computed, how fast, and how to build machines and programs that do it reliably.
Algorithms & Data Structures · Theory of Computation · Programming Languages · Compilers & Interpreters
Systems that learn from data — the fastest-moving field in this index, and the one with the worst signal-to-noise ratio.
Machine Learning Foundations · Deep Learning · Natural Language Processing · Computer Vision
Applying science under constraint — cost, time, materials and the certainty that something will fail.
Mechanical Engineering · Aerospace Engineering · Electrical Engineering · Electronics & Embedded Systems
Living systems at every scale — molecule, cell, organism, biosphere — unified by one idea: descent with modification.
Cell Biology · Molecular Biology & Genetics · Genomics & Bioinformatics · Evolutionary Biology
Clinical knowledge, public health and the evidence beneath both — an area where bad information does measurable harm.
Human Anatomy & Physiology · Internal Medicine & Diagnosis · Cardiovascular Medicine · Neurology & Neurosurgery
The organ that produces mind — studied from ion channels up to consciousness.
Cellular & Molecular Neuroscience · Neuroanatomy · Systems Neuroscience · Cognitive Neuroscience
How societies allocate scarce resources — and why the incentives usually explain more than the intentions.
Microeconomics · Macroeconomics · Econometrics · Behavioural Economics
Capital allocation under uncertainty — the field where a good mental model compounds and a bad one is expensive.
Corporate Finance · Investment Theory · Valuation · Equity Markets
Building and running organisations — where most advice is survivorship bias and a minority is genuinely load-bearing.
Strategy · Entrepreneurship & Startups · Marketing · Sales & Business Development
The scientific study of mind and behaviour — including a hard-won understanding of how easily its own findings mislead.
Cognitive Psychology · Judgement & Decision Making · Social Psychology · Developmental Psychology
Human beings as social animals — the structures they build, inherit, and rarely notice.
Sociological Theory · Social Stratification & Inequality · Race, Ethnicity & Migration · Gender & Sexuality
Power — how it is acquired, constrained, distributed and abused.
Political Theory · Comparative Politics · International Relations · Geopolitics & Grand Strategy
The formal rules societies enforce, the reasoning used to apply them, and the gap between the two.
Legal Reasoning & Method · Constitutional Law · Criminal Law & Procedure · Contract Law
How people learn, how they are taught, and the wide gap between the evidence and standard practice.
The Science of Learning · Pedagogy & Instructional Design · Curriculum & Assessment · Self-Directed Learning
How information moves through a society — and, increasingly, how it gets corrupted on the way.
Information Literacy · Misinformation & Disinformation · Journalism · Rhetoric & Persuasion
The record of what people did and why — organised by period and region, because that is how the evidence organises itself.
Prehistory & Human Origins · Mesopotamia & the Ancient Near East · Ancient Egypt · Ancient Greece
The discipline of asking what a question actually means before answering it.
Logic · Epistemology · Metaphysics · Ethics & Moral Philosophy
Belief systems as historical, textual and social realities — studied, not preached.
Comparative Religion · Judaism · Christianity · Islam
Language as a natural object — structured, learnable, and far stranger than it looks.
Phonetics & Phonology · Morphology & Syntax · Semantics & Pragmatics · Historical & Comparative Linguistics
Written art — the technology humans use to transmit interior experience across time.
Literary Theory & Criticism · Poetry · The Novel · Drama & Theatre Literature
Reconstructing the past from what people left behind rather than what they wrote down.
Archaeological Method & Theory · Dating & Scientific Techniques · Prehistoric Archaeology · Classical & Mediterranean Archaeology
Image-making across media and centuries, plus the theory used to argue about it.
Drawing & Painting · Sculpture & Three-Dimensional Art · Printmaking & Works on Paper · Art History: Ancient to Medieval
Organised sound — theory, practice, history and the technology that keeps redefining it.
Music Theory · Composition & Songwriting · Performance & Instruments · Western Classical Tradition
The dominant narrative art form of the twentieth century, and its digital successors.
Film Language & Analysis · Filmmaking Craft · Film History · World Cinema
Buildings and cities — the art form everyone is forced to live inside.
Architectural Design · Architectural History · Modern & Contemporary Architecture · Urban Design & Planning
Intentional problem-solving through form — the discipline that decides how most objects and interfaces behave.
Design Fundamentals · Typography · Graphic & Brand Design · Product & Industrial Design
Art that exists only while it is being performed.
Theatre Practice · Theatre History & Traditions · Dance · Comedy & Spoken Performance
The general-purpose skills: reasoning clearly, deciding well, writing plainly and getting things done.
Critical Thinking · Decision Making · Mental Models & Frameworks · Probabilistic Thinking & Forecasting
Physical skill — knowledge that lives in the hands and cannot be acquired by reading alone.
Woodworking · Metalwork & Fabrication · Building Trades · Electrical & Plumbing
How food is grown, moved and eaten — the largest human industry and the one with the biggest footprint.
Crop Science & Agronomy · Livestock & Animal Husbandry · Sustainable & Regenerative Agriculture · Horticulture & Gardening
The practical side of the body — an area where the evidence is clearer than the internet suggests.
Strength Training · Endurance & Conditioning · Mobility, Recovery & Injury · Practical Nutrition
Competence in environments that do not accommodate you.
Wilderness Skills · Navigation · Mountaineering & Climbing · Water & Sea
Structured competition — small enough to analyse completely, complex enough to teach real lessons.
Chess · Go & Abstract Strategy · Card & Probability Games · Strategy & Wargaming
The Library
Each entry states its actual argument in one line, so you can tell before you commit whether it is worth your evening.
Alan Turing
Defines the universal machine and proves the halting problem undecidable — the founding document of computer science.
Assumes no computer science, but genuine comfort with formal proof, and patience for 1936 notation
36 pageslink checked 17 Sept 2026Notes on this copyEuclid
Derives the whole of classical geometry from five postulates, and in doing so invents the axiomatic method every later mathematics is written in.
Assumes nothing but a straight edge, a compass, and the willingness to be shown rather than told
link checked 17 Sept 2026Notes on this copyRichard Feynman
A full undergraduate physics course rebuilt around physical intuition rather than problem-set mechanics.
Assumes calculus, and enough algebra to follow a derivation that skips steps on purpose
3 volumeslink checked 17 Sept 2026Albert Einstein
Special relativity derived from two postulates, dissolving absolute time without introducing a single new force.
Assumes Maxwell's equations and ordinary algebra — famously no tensors, which is why it is still readable
31 pageslink checked 17 Sept 2026Notes on this copyRichard Feynman
Scientific integrity means bending over backwards to show how you might be wrong — everything else is imitation.
Assumes no prior reading at all — it is a commencement address about honesty, not a physics paper
≈4,000 wordslink checked 17 Sept 2026IPCC
The consensus statement of the physical evidence on climate change, with explicit confidence levels attached to each claim.
link checked 17 Sept 2026John P. A. Ioannidis
Shows that under realistic assumptions about power, bias and prior probability, most published positive findings will not replicate.
6 pageslink checked 17 Sept 2026Gelman, Carlin, Stern, Dunson, Vehtari & Rubin
The reference for applied Bayesian work, and unusually candid about model checking and the ways a posterior can be confidently wrong.
link checked 17 Sept 2026