The part most second-brain guides skip. They tell you to open the graph view, say it looks like a brain, and move on.
The graph is not decoration. It is the data structure that makes a wiki answer questions a search index cannot, and it has properties you can measure, failure shapes you can recognise, and uses beyond looking at it.
This section covers what the graph is actually for, how to read it, how to make links carry meaning, and when to move part of it into something more capable than markdown.
- Graph basics for a knowledge base
- Reading the Obsidian graph view
- Typed links
- Graph vs embeddings
- GraphRAG and where it fits
- Exporting the graph
- Graph metrics worth tracking