Lack of Incidents Is Not Evidence of Stability
Many organizations use incident frequency as a proxy for system health. If nothing has broken recently, the system is assumed to be stable. If uptime is high and pages are rare, reliability is treated as solved. This assumption is convenient, but it is often wrong. In practice, the absence of incidents usually says very little about whether a system is well understood, resilient, or safe to change. Quiet Systems Can Still Be Risky Low incident counts tend to mean one of three things: The...