000 β€” Computer Science, Information, & General Works

Meta-systems, tooling, information structures, and ways of seeing how systems actually behave in practice.

100 β€” Philosophy & Psychology

Ethics, meaning, mental models, human behavior, and β€œhow to live” frameworks.

βŒ›

200 β€” Religion

300 β€” Social Sciences

Power, institutions, incentives, ideology, and the ways societies organize, justify, and misrepresent themselves.

400 β€” Language

Dictionaries, usage notes, neologisms, linguistics, translation, and language learning systems.

500 β€” Pure Science

Foundations of reality studied for understanding rather than immediate use.

600 β€” Technology (Applied Sciences)

Systems built to act on the world: tools, machines, code, and applied methods.

700 β€” Arts & Recreation

Aesthetics, play, and creative systems explored for expression, joy, and cultural texture.

800 β€” Literature

Texts, stories, and commentary examined for meaning, structure, and lasting cultural resonance.

900 β€” History & Geography

Time, place, and the traces left behind by people, borders, and events.

Outside Dewey

Methods, hybrids, and frameworks that refuse clean classification and cut across multiple domains.