Definition
The tipping point at which accumulated operational complexity crosses from manageable to operation-breaking. Where [Static Decline] is decay through inaction, [Complexity Decline] is decay through compounding action — every workaround, every added process, every undocumented exception contracts the relational capacity of the operation until the system can no longer produce the experience it was built to produce.
Explanation
The tell is almost the opposite of what you’d expect. The operator who reaches [Complexity Decline] is usually the busiest person in the building — not the one who stopped moving, but the one drowning in motion that stopped being productive somewhere along the way. Each individual addition looked reasonable in the moment: one more exception for one difficult vendor, one more workaround for a system that didn’t quite fit, one more undocumented rule that only the operator remembers. None of them alone would sink anything.
The compounding is the danger. Every patch adds a small tax on the operator’s attention and the cast’s ability to execute cleanly, and those taxes stack. Eventually the operation is spending more energy managing its own accumulated exceptions than it spends producing the Guest Experience those exceptions were originally meant to protect. The operation isn’t standing still — it’s moving hard in the wrong direction, buried under the weight of its own accumulated doing.
The way out isn’t more effort. It’s subtraction — an architectural pass that removes the workarounds instead of managing around them, the same move that breaks [Repairman Syndrome].

