>>52107635There's no such thing as a perfect copy. Something, no matter how small, is lost from the original. This robot may look, act like, and have the memories of Sada, but she knows she's not the real thing, that she's an artificial recreation. That alone makes her different from Sada. And that changes how she reacts, learns, retains memories, and eventually behaves. What you have is an approximation of what the real Sada is like, but never the genuine article.