Always the same final answer to all WHYs
Root-cause analysis = ask WHY until the answer is ‘i don’t know’, meaning that root-cause analysis inevitably arrives @ UNKNOWN or UNKNOWABLE:
Boss: Our application is slow and end-users are unhappy, why?
You: Database is slow
You: Because our report query is taking too long.
You: Database server is out of memory.
You: I think Bob […]