Dual redundant hardware, sounds like a server or IT equipment. Airliners and the like are triple, sometimes quad. Designing a Dell server for high uptime with

Dual redundant hardware, sounds like a server or IT equipment. Airliners and the like are triple, sometimes quad. Designing a Dell server for high uptime with dual power supplies is one thing. Designing stuff where it falls out of the sky and crashes into a high-school if the computer signal from one sensor to one actuator takes 2 milliseconds too long to traverse.