@amazeifystore: What critical signal was missing before Herald of Free Enterprise departed? ⚠️ In 1987, the ferry left Zeebrugge with its bow doors open, yet the bridge had no indicator showing their position. Without clear status visibility, departure readiness depended on inference instead of confirmation. What would you instrument first: door position, latch status, or a departure interlock? Comment below and save this as a reminder that visibility is safety. #SafetyEngineering #HumanFactors #MaritimeSafety #DesignLessons #SystemsSafety #RiskManagement #SafetyByDesign #EngineeringLessons #HeraldOfFreeEnterprise