{"id":"catch-up-then-subscribe","text":"`LiveProjection` implements the catch-up subscription pattern: replay historical events via `read_all(from_position=...)`, then switch to push-based updates for future events, bridging pull/push at a known position with no gap","truth_value":"IN","source":"entries/2026/05/29/topic-live-projection-subscription-mechanism.md","source_url":"","source_hash":"","justifications":[],"dependents":["live-projection-exactly-once-via-position-guard"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"catch-up-then-subscribe","truth_value":"IN","reason":"premise"}]}}