Chaos Monkey popularised a simple idea: if failure is inevitable, practice it on purpose. By randomly terminating instances, Netflix forced systems and teams to become resilient by design rather than by hope.

The transferable lesson for enterprise IT is not the tool — it is the culture. Resilience needs game days, clear blast-radius limits, observable services, and the humility to treat outages as design feedback.

For service organisations, pair chaos thinking with solid incident and problem practices — see notes under ITSM & ServiceNow.