However, in the process of tracing, Motoko Kusanagi questioned the meaning of existence and the boundary between the human body and the prosthetic body again and again. "If human beings are like machines, their bodies can be replaced, their memories can be modified, and when they can live forever, what exactly is a human being? What is the meaning of existence?" What is a shell? When our human body can already be replaced by a machine, what is that person? Is it human to have consciousness? Consciousness can also be changed. Not only can it be changed by the Internet, but the Internet can also have its own consciousness. Does the Internet count as a human being? That truck driver's job is for his wife and daughter, but his memory is transplanted. He is completely stupid, and his consciousness can be changed, so he is still not human? If not human, what is the significance of his actions? Does this directly obliterate the right to exist if he is a person whose memory has been modified? What is the definition of man? consciousness? memory? or behavior? or something else? We cling to memories, but they don't define us, it's our actions that define us. Are we still human if we stop clinging to memory? (If thinking determines behavior) They want to achieve human evolution through us, but in the end we surpass them. How to define human beings, body or soul? How to define the soul? thinking or memory
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