Status: OUT
The Observer-Command dual temporal architecture — Observer distributing spatial events, Command managing temporal persistence — is production-ready for event-driven systems, providing both real-time notification and reliable state recovery.
The dual event architecture is production-ready only while Observer's unexpected-update cascades and dangling reference risks are managed
Depends on (SL): event-architecture-temporally-persistent, observer-notification-three-design-decisions
Unless: gof-observer-unexpected-updates-liability, gof-observer-dangling-reference-on-subject-delete