What’s ‘Useless Hand System’ and why Russian nukes would preserve firing even when your entire planet is lifeless

Deep inside silos unfold throughout the huge Russian panorama, surviving Intercontinental Ballistic Missiles (ICBMs) obtain the radio broadcast from the command rockets above. Even when the human crews manning these silos are lifeless or incapacitated by radiation, the silos are programmed to robotically roll open their concrete lids, ignite their engines, and launch. A whole bunch of missiles, commanded successfully by lifeless males, would rise into the sky and strike pre-programmed targets throughout the globe, guaranteeing a worldwide nuclear winter.