Organize authors long-term notes into a searchable story knowledge base

Organize authors long-term notes into a searchable story knowledge base targets a $360M = 3,000,000 active authors x $10/mo ARPU x 12 total addressable market with low saturation and a year-over-year growth rate of 8-12% annual growth in creator productivity tools and self-publishing adoption.

Key trends driving demand: Generative AI and embeddings -- make entity extraction, summarization and semantic search reliable enough to automate note organization.; Rise of self-publishing -- more indie authors need tooling that supports long-running projects and series continuity.; Creator monetization and subscriptions -- authors already pay for specialized writing tools, indicating an addressable paying audience..