[RL_Quine]

Like in medical gear, avionics also has a lot of redundancy and "useless" circuitry to allow for assurances. I've opened some hardware designed for unsafe environments that was absolutely packed with fuses, for seemingly no purpose other than to assert that limits were being followed in the design. I don't imagine avionics is any different, but I've only seen the inside of 60s-70s aircraft gear.

[jareklupinski]

I love the hardware/software analogy of a fuse to an assert statement; going to remember that while writing tests :)