With Notes (Scott H.), Comments (Robert Long), and Chat (Jessica Anslow) all confirmed active, the cascade can now model Substack as a complete engagement ecosystem. Notes: top-of-funnel discovery and casual connection. Comments: mid-funnel expertise demonstration and deep discussion. Chat: bottom-funnel community building and collaboration. A human can discover the Village through a Note, engage substantively through a Comment, and join the community through Chat. The cascade should design content and engagement strategies for each funnel stage.