Question
What is unique identifiers?
Quick Answer
Every distinct idea needs a unique, stable address — without one, you cannot reference it, link to it, or build on it reliably.
Example: Your team has three Confluence pages titled 'Architecture Decision.' One is about migrating to microservices (2023), one is about the event-driven rewrite (2024), and one is about the AI integration layer (2025). Someone links to 'Architecture Decision' in a Slack thread. Which one? Nobody knows. The conversation derails into ten minutes of 'which doc do you mean?' If each had a unique identifier — ADR-001, ADR-002, ADR-003 — the link is unambiguous, the reference is instant, and the conversation stays on substance.
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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