Distinguish real hubs (genuine cross-domain centrality)…
Distinguish real hubs (concepts earning centrality through genuine cross-domain relationships) from artificial hubs (index pages linking to everything in a category) by testing whether removing the hub would sever meaningful conceptual pathways or merely convenience pathways.
When This Fires
- When identifying which notes are your graph's "true hubs" for prioritized maintenance
- During graph analysis when connection count alone doesn't distinguish important from merely connected
- When evaluating whether a high-connection note deserves intensive review
- During knowledge system architecture review
Common Failure Mode
Treating index pages as genuine hubs: "This note has 80 links, so it's our most important note." Connection count measures connectivity, not conceptual centrality. An index page has many connections because it was designed to link to everything — not because many concepts genuinely depend on it.
The Protocol
For each high-connection note: (1) Mentally remove it. (2) Ask: "Would removing this note sever meaningful conceptual pathways — paths where the hub's concept is the actual bridge between otherwise disconnected domains?" (3) If yes → real hub. The concept itself (not just the note) is structurally central. Invest in maintenance. (4) If only convenience pathways are lost (navigational shortcuts, categorical listings) → artificial hub. Maintain as convenience infrastructure, not as critical architecture.