Retries are one of the simplest ways to make a distributed system appear more reliable. A transient connection failure, overloaded replica, or short-lived network interruption can disappear after another attempt, which is why retry support exists in major RPC frameworks and cloud SDKs. The danger begins when every layer makes the same decision independently. A mobile client retries an API gateway, the gateway retries a service, that service retries another service, and the final dependency retries a database call. The original request has not become more important, but the system has multiplied the work required to fail. AWS describes a five-deep service stack in which three attempts at each layer can drive 243 calls against the database when the deepest dependency is failing. Google’s SRE guidance similarly warns that retries can amplify overload and contribute to cascading failure.