translation.en: If that single-stability system, that brain that flies that aircraft, fails, or if the engine fails, that vehicle crashes. There is no option to that.
translation.zh: 如果这套唯一的平衡稳定系统， 或者说控制飞行器的大脑不工作了，或者引擎失灵了 那么飞机必然坠毁。别无选择。