How do I practice graph density?

The most direct way to practice graph density is through a focused exercise: Pick two subjects you know well and one you're just beginning to learn. For each, list 10 concepts from memory. Then draw the connections between them — every relationship you can articulate (causes, enables, contradicts, exemplifies, depends on). Count the edges. Calculate the density: edges divided by (nodes times (nodes minus 1) divided by 2). Compare the three numbers. The subject you understand most deeply will have the highest density, not because you tried to connect things, but because deep understanding is dense connection.

Common pitfall: Treating link count as a vanity metric. You can inflate density by creating shallow, meaningless connections — tagging everything with the same broad category, linking notes because they share a word rather than a concept. Density without semantic weight is noise. The test is whether you can explain why each edge exists. If you can't articulate the relationship in a sentence, the link is decoration, not structure.

This practice connects to Phase 18 (Knowledge Graphs) — building it as a repeatable habit compounds over time.