**Don't design a system or process that uses “absence of a negative” as an assumed positive.** I’ve seen numerous of silent failures occur in my life. When designing a system or a process, don't use “If I don't hear anything I’ll assume all is well” as your approach. Positive confirmation of success is better than implicit assumptions of not failing. **** # More ## Source ## Related - [[The Zen of Python]] - [[FMEA]] - includes reference to how likely you are to notice exceptions