Question
What is tag taxonomy?
Quick Answer
A tag is the simplest way to declare that two atoms share something in common.
Example: You write a note about how your team's sprint retrospective keeps surfacing the same blockers. You tag it #decision-debt and #team-process. A week later, you write a separate note about how your personal habit of deferring hard conversations maps to the same pattern. You tag it #decision-debt and #avoidance. The tag #decision-debt now connects two atoms from completely different domains — team workflow and personal behavior — without you having to build a folder called 'Patterns of Avoidance Across Contexts.' The relationship declared itself through a shared label.
This concept is part of Atomicity and Decomposition in the How to Think curriculum.
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Go beyond the answer
This topic is part of Build Your AI Second Brain — a guided sequence of 16 lessons.
After completing this path you will have a capture habit that catches thinking before it decays, notes structured so both you and an AI can retrieve them (atomic, identified, context-rich), a personal knowledge graph AI tools can answer from, and the review loop that keeps the system alive. Ask-don't-search becomes your default.
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