Presented at the 21st Global Congress on Process Safety on Tuesday, April 8, 2025, Hindsight is 20/20: Lessons Learned from Reactive Chemical Incidents explores key insights from past incidents involving reactive chemicals. The presentation examines common root causes and emphasized practical strategies for managing reactivity hazards, including identification, consequence evaluation, and safeguard implementation. Attendees gained actionable takeaways for strengthening reactivity hazard programs and preventing future incidents.