+Redundancy is the practice of having more than what is strictly needed, often to ensure [Reliability](/wiki/reliability) or [Fault Tolerance](/wiki/fault_tolerance). It's a deliberate duplication of components or information, a silent promise against failure, ensuring continuous operation even if part of a system falters.
+## See also
+- [Backup](/wiki/backup)
+- [Safety](/wiki/safety)
+- [Duplication](/wiki/duplication)
... 1 more lines