## Overview "When seconds count, help is minutes away." A 2008 study of 40 US law enforcement agencies and 3M+ calls found even priority-1 emergencies (life in immediate danger) had a median response of 9 minutes and average of 25 minutes. Any defense strategy that assumes outside help will arrive in time is structurally unsound. Plan for the gap. ## Core Framework - **Quantify the gap**: The window between "incident starts" and "external help arrives" is the self-reliance window. For physical emergencies it's often 10-25 minutes. For medical emergencies it's often 5-15 minutes. Know your local number. - **Design for the gap, not the worst case**: Over-investing in fortress-grade defenses wastes capital; under-investing in the first 10 minutes of crisis kills people. Target the specific window. - **Buy time, not victory**: Every defensive layer (lock, safe room, alarm) exists to extend the gap until help arrives — not to permanently resolve the incident. Reframe "protection" as "delay." - **Rehearse the gap**: Everyone in the household must know what to do during the gap without coordination from outside. Barricade, call, wait. ## Cross-Domain Applications **Medical Emergencies**: Ambulance response is 5-15+ minutes. CPR training, first-aid supplies, and known ER routes cover the gap. **Business Continuity**: DR plans assume vendors/cloud/IT will respond. Map actual response time and build internal capacity (failover runbooks, on-call, local backups). **Personal Finance Crisis**: If income stops, how long until unemployment/family help/new work arrives? That gap is what emergency savings cover — the "3-6 months" rule is a response-time-gap calculation. ## See Also [[Time Sound Visibility Deterrent Framework]] ## References - [[2 Resources/A Home Defense Primer]] — Jameson Lopp, Casa blog (citing 2008 LEO response-time study, 40 agencies, 3M+ calls)