Ages ago, I watched a documentary about ATC that showed a drill involving ATC work under power failure (mains and generator). I'm probably misremembering some d

Ages ago, I watched a documentary about ATC that showed a drill involving ATC work under power failure (mains and generator). I'm probably misremembering some details but there were battery-operated radios and little tablets being passed around with scribbled information. I guess AI can work while the lights are on, but if this is your backstop scenario, you still need the meat ATC controllers, and they really need to know their stuff.