人工智能技术突飞猛进，人们在乐见其带来的技术红利的同时，也存在新的不安。人工智能技术高度发展之后，机器人会多大程度和什么方式替代人类的社会角色？在未来，人的概念需要重新定义吗？人类的社会结构将发生哪些根本性的变化？如何应对人工智能高度发展带来的伦理挑战？

Artificial intelligence is developing by leaps and bounds, bringing not only technology dividends but also unease. When AI technology becomes highly advanced, to what extent and in what ways will robots replace human in a society? Does the concept of human need to be redefined in the future? What fundamental changes might happen to the structure of human society? How to address ethical challenges brought by highly advanced AI?