{"id":"derived-systems-depend-on-unreliable-event-infrastructure","text":"The derived-system pattern (secondary indexes, materialized views, projections) depends on event infrastructure that is unreliable at its foundation: event sourcing has no durable recovery mechanism and conflates two ID spaces, while derived systems require explicit flush calls and old-value CDC events for consistency — the consumer-side correctness requirements depend on producer-side guarantees that do not hold.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"derived-systems-depend-on-unreliable-event-infrastructure","truth_value":"IN","reason":"premise"}]}}