Any system that depends on fallible humans for its design, operation, and maintenance will sooner or later fail (limitation-of-risk-benefit-analysis principle).
Any system that depends on fallible humans for its design, operation, and maintenance will sooner or later fail (limitation-of-risk-benefit-analysis principle).
任何系统若需倚赖不可靠的人类去为它设计、操作、维护，迟早是要失败的。