What goes wrong when you ignore that operational resilience?

The most common reason fails: Building a system so optimized for your ideal environment that any deviation — travel, illness, a schedule change, an emotional crisis — causes total operational collapse rather than graceful degradation. The more perfectly tuned a system is to one context, the more fragile it becomes in every other context.

The fix: List the five most important operational habits in your current system. For each one, write the minimum viable version you could execute with nothing but a phone and fifteen minutes — no desk, no Wi-Fi, no familiar environment. Test one of these minimum versions tomorrow morning, even if you are at home. If it works at home under ideal conditions, it has a chance of surviving a disruption. If it fails at home, it will certainly fail on the road.

The underlying principle is straightforward: Design your operations to survive disruptions — travel illness changes in routine.