Every Ditto user already has a knowledge graph. As you talk, Ditto extracts subjects (typed topics, people, projects, preferences) and links each one to the memories it touches. (That’s the dreaming pipeline at work.) We’d already seen that matching a query to subjects, rather than only to raw memories, was a powerful signal. v4 leans on it directly.
Teaching Memory to Find Itself · Omar Barazanji · 14 June 2026