Playground

The knowledge, made visible

The deep field

The biggest hubs in three parallax layers — move your pointer for depth, hover a star and click to open the concept. Depth encodes connectedness, not a fabricated axis.

Coverage matrix

Domains by thinking families: the brighter a cell, the more concepts sit at that intersection. Hover a cell to see which concepts live there. Dark cells are honest gaps.

SystemsInformationMatterChangePatternsEnergyLifeScaleStructureDecisionNetworksWavesCausalityComputationEarthSpaceOptimizationNumberProbabilitySecurityThresholdsConstraintsNatural sciencesFormal sciencesEngineeringMedicine & healthSocial sciencesHumanitiesProfessionalArtsInterdisciplinary1351073848362165133882710464943189852062439127321814210106653109135743911820412159443249212100372211339451917272411610101146188461118782811461213321011161219321571031111

Domain chord

How the nine domains connect through relations — each ribbon a bundle of cross-domain edges. Hover a domain to isolate its threads.

Natural sciencesFormal sciencesEngineeringMedicine & healthSocial sciencesHumanitiesProfessionalArtsInterdisciplinary

Domain sunburst

The hierarchy: nine domains inside, their disciplines outside, each sized by concept count. A discipline links to its lens.

Knowledge9 domains

Relation spectrum

The mix of relation types across the whole graph — part-of and applies-to carry the fabric, contradicts is rare.

Observability for knowledge

The control panel: the graph’s headline metrics and a tile per domain with its coverage. Every number is a real count — no vanity score.

3750
Concepts
5051
Relations
289
Disciplines
31
Mental models
2.7
Mean degree
1
Component
Natural sciences
138570 disciplines
Formal sciences
49140 disciplines
Engineering
27727 disciplines
Medicine & health
28925 disciplines
Social sciences
25924 disciplines
Humanities
30731 disciplines
Professional
27127 disciplines
Arts
17617 disciplines
Interdisciplinary
29528 disciplines

Structural intelligence

Structural roles

Every concept as hub, bridge, connector, specialist or peripheral.

  • Connector1,307
  • Leaf1,272
  • Cross-disciplinary bridge1,113
  • local-hub58

Structural core (k-core)

How many concepts sit in progressively deeper shells.

  • Core k=11,482
  • Core k=22,252
  • Core k=316

Hubs (by degree)

The most-connected concepts — connected ≠ more important.

Fragility (articulation points)

874 concepts whose removal would fragment parts of the atlas.

Boundary concepts (discipline span)

Concepts that touch the most disciplines.

Discipline interaction matrix

Canonical relations per discipline pair (top 12).

ChemistryBiologyPhysicsMathematicsComputer ScienceGeologyMineralogyEconomicsMicrobiologyAstronomyMedicineEarth & Space SciencesChemistryBiologyPhysicsMathematicsComputer ScienceGeologyMineralogyEconomicsMicrobiologyAstronomyMedicineEarth & Space SciencesChemistry ↔ Chemistry: 283Chemistry ↔ Biology: 6666Chemistry ↔ Physics: 5858Chemistry ↔ Mathematics: 22Chemistry ↔ Computer Science: 0Chemistry ↔ Geology: 66Chemistry ↔ Mineralogy: 11Chemistry ↔ Economics: 88Chemistry ↔ Microbiology: 44Chemistry ↔ Astronomy: 0Chemistry ↔ Medicine: 22Chemistry ↔ Earth & Space Sciences: 1111Biology ↔ Chemistry: 6666Biology ↔ Biology: 252Biology ↔ Physics: 4040Biology ↔ Mathematics: 2222Biology ↔ Computer Science: 1414Biology ↔ Geology: 77Biology ↔ Mineralogy: 0Biology ↔ Economics: 2626Biology ↔ Microbiology: 6767Biology ↔ Astronomy: 22Biology ↔ Medicine: 3939Biology ↔ Earth & Space Sciences: 1212Physics ↔ Chemistry: 5858Physics ↔ Biology: 4040Physics ↔ Physics: 237Physics ↔ Mathematics: 4343Physics ↔ Computer Science: 77Physics ↔ Geology: 66Physics ↔ Mineralogy: 0Physics ↔ Economics: 1717Physics ↔ Microbiology: 0Physics ↔ Astronomy: 6060Physics ↔ Medicine: 55Physics ↔ Earth & Space Sciences: 2424Mathematics ↔ Chemistry: 22Mathematics ↔ Biology: 2222Mathematics ↔ Physics: 4343Mathematics ↔ Mathematics: 193Mathematics ↔ Computer Science: 3838Mathematics ↔ Geology: 0Mathematics ↔ Mineralogy: 0Mathematics ↔ Economics: 3333Mathematics ↔ Microbiology: 11Mathematics ↔ Astronomy: 33Mathematics ↔ Medicine: 11Mathematics ↔ Earth & Space Sciences: 22Computer Science ↔ Chemistry: 0Computer Science ↔ Biology: 1414Computer Science ↔ Physics: 77Computer Science ↔ Mathematics: 3838Computer Science ↔ Computer Science: 173Computer Science ↔ Geology: 0Computer Science ↔ Mineralogy: 0Computer Science ↔ Economics: 33Computer Science ↔ Microbiology: 0Computer Science ↔ Astronomy: 0Computer Science ↔ Medicine: 0Computer Science ↔ Earth & Space Sciences: 0Geology ↔ Chemistry: 66Geology ↔ Biology: 77Geology ↔ Physics: 66Geology ↔ Mathematics: 0Geology ↔ Computer Science: 0Geology ↔ Geology: 30Geology ↔ Mineralogy: 111111Geology ↔ Economics: 11Geology ↔ Microbiology: 22Geology ↔ Astronomy: 55Geology ↔ Medicine: 0Geology ↔ Earth & Space Sciences: 6565Mineralogy ↔ Chemistry: 11Mineralogy ↔ Biology: 0Mineralogy ↔ Physics: 0Mineralogy ↔ Mathematics: 0Mineralogy ↔ Computer Science: 0Mineralogy ↔ Geology: 111111Mineralogy ↔ Mineralogy: 97Mineralogy ↔ Economics: 0Mineralogy ↔ Microbiology: 0Mineralogy ↔ Astronomy: 0Mineralogy ↔ Medicine: 0Mineralogy ↔ Earth & Space Sciences: 1414Economics ↔ Chemistry: 88Economics ↔ Biology: 2626Economics ↔ Physics: 1717Economics ↔ Mathematics: 3333Economics ↔ Computer Science: 33Economics ↔ Geology: 11Economics ↔ Mineralogy: 0Economics ↔ Economics: 116Economics ↔ Microbiology: 33Economics ↔ Astronomy: 0Economics ↔ Medicine: 11Economics ↔ Earth & Space Sciences: 22Microbiology ↔ Chemistry: 44Microbiology ↔ Biology: 6767Microbiology ↔ Physics: 0Microbiology ↔ Mathematics: 11Microbiology ↔ Computer Science: 0Microbiology ↔ Geology: 22Microbiology ↔ Mineralogy: 0Microbiology ↔ Economics: 33Microbiology ↔ Microbiology: 66Microbiology ↔ Astronomy: 0Microbiology ↔ Medicine: 4141Microbiology ↔ Earth & Space Sciences: 11Astronomy ↔ Chemistry: 0Astronomy ↔ Biology: 22Astronomy ↔ Physics: 6060Astronomy ↔ Mathematics: 33Astronomy ↔ Computer Science: 0Astronomy ↔ Geology: 55Astronomy ↔ Mineralogy: 0Astronomy ↔ Economics: 0Astronomy ↔ Microbiology: 0Astronomy ↔ Astronomy: 82Astronomy ↔ Medicine: 11Astronomy ↔ Earth & Space Sciences: 66Medicine ↔ Chemistry: 22Medicine ↔ Biology: 3939Medicine ↔ Physics: 55Medicine ↔ Mathematics: 11Medicine ↔ Computer Science: 0Medicine ↔ Geology: 0Medicine ↔ Mineralogy: 0Medicine ↔ Economics: 11Medicine ↔ Microbiology: 4141Medicine ↔ Astronomy: 11Medicine ↔ Medicine: 57Medicine ↔ Earth & Space Sciences: 0Earth & Space Sciences ↔ Chemistry: 1111Earth & Space Sciences ↔ Biology: 1212Earth & Space Sciences ↔ Physics: 2424Earth & Space Sciences ↔ Mathematics: 22Earth & Space Sciences ↔ Computer Science: 0Earth & Space Sciences ↔ Geology: 6565Earth & Space Sciences ↔ Mineralogy: 1414Earth & Space Sciences ↔ Economics: 22Earth & Space Sciences ↔ Microbiology: 11Earth & Space Sciences ↔ Astronomy: 66Earth & Space Sciences ↔ Medicine: 0Earth & Space Sciences ↔ Earth & Space Sciences: 78

Dependency & learning

Evidence & epistemology

Evidence coverage by discipline (Tier A/B)

Share of concepts backed by a Tier A/B source.

Evidence gaps (unsourced)

Disciplines with the most concepts lacking a verified source.

Consensus landscape

The atlas by honest epistemic status.

  • Established3,561
  • Strongly supported85
  • Supported56
  • Contested24
  • Uncertain14
  • Speculative10

History & people

Who shaped the atlas

Contributors by number of concepts attributed.

Kinds of contribution

Attributions by role — discoverer, inventor, formulator, founder…

  • Formulated554
  • Discovered278
  • Invented43
  • Developed5
  • Independently discovered3
  • Anticipated3
  • Engineered3
  • Founded2
  • Named1
  • Formalized1
  • Popularized1

Knowledge timeline

Real, sourced dates from antiquity to today — filter by discipline.

71 events
500 BCE0500100015002000c. 600 BCE · Magnetismc. 530 BCE · Pythagorean theoremc. 500 BCE · Musical scalec. 450 BCE · Irrational numberc. 300 BCE · Algorithmc. 300 BCE · Axiomc. 300 BCE · Golden ratioc. 300 BCE · Mathematical proofc. 300 BCE · Prime numberc. 250 BCE · Buoyancyc. 250 BCE · Leverc. 250 BCE · Pi250 BCE · Archimedes' principlec. 150 BCE · Trigonometryc. 150 CE · Map projectionc. 820 CE · Algorithmc. 820 CE · Quadratic equationc. 1021 · Refraction1202 · Fibonacci sequence1413 · Perspective drawing1607 · Telescope1609 · Kepler's laws of planetary motion1619 · Kepler's laws of planetary motion1678 · Hooke's law1787 · Electrolysis1817 · Comparative advantage1825 · Benzene1831 · Faraday's law of induction1831 · Electromagnetic induction1831 · Standing wave1839 · Cell theory1842 · Doppler effect1858 · Natural selection1859 · Natural selection1866 · Mendelian inheritance1869 · Periodic table1896 · Radioactive decay1897 · Electron1900 · Quantum mechanics1902 · Hormone1905 · Mass–energy equivalence1905 · Special relativity1912 · Continental drift1912 · Gini coefficient1915 · General relativity1920 · Proton1923 · Photon1927 · Big Bang1927 · Hubble–Lemaître law1929 · Hubble–Lemaître law1932 · Neutron1935 · Richter scale1936 · Turing machine1936 · Inner core1944 · Game theory1945 · Computer1947 · Transistor1948 · Shannon entropy1950 · Game theory1950 · Nash equilibrium1953 · DNA1953 · Hash table1955 · Linked list1958 · Integrated circuit1964 · Cosmic microwave background1965 · Big Bang1960s · Plate tectonics1968 · Tragedy of the commons1969 · Internet2012 · CRISPR-Cas92015 · Gravitational wave

Mental models & formal structure

Mental-model reach

How many disciplines each pattern recurs in.

How often practised

Concepts that exercise each pattern.

Equations by discipline

Concepts carrying a canonical equation, per discipline.

About this view

What this is

A growing collection of interactive information graphics over the same real graph — each a different way of looking.

On the canvas

Hand-rolled SVG straight on the background, glowing marks, self-drawing — not a chart in a box.

Deterministic & honest

Every figure is computed server-side from real data; no fabricated numbers, no score. Motion rests under reduced-motion.