Ontological Type System
Properties
Type Idea
Title Ontological Type System
Subtype Instrument
State Stable
Aliases OTS
Associations knowledge-management, obsidian
Created 2026-05-08
The Ontological Type System is a method for personal knowledge management built on classical realism. Where most note systems organize by topic or task, OTS organizes by what kind of thing each note’s referent actually is: a Journal entry, Person, Place, Work, Event, or Idea. There are six types, and only six. Everything fits. The result is a graph that grows by accretion rather than by hierarchy, and a vault that can hold a lifetime of thinking without ever needing to be reorganized.
Read the philosophical case at Laytheo.com.