When I mentioned parallel spacetime, Zeng Dajiang's eyes seemed to widen slightly. He asked, "What about parallel spacetime?"
I sighed. "Every parallel spacetime has counterparts of us. You know that, right? Every parallel spacetime has a version of me, a Doctor, and many people closely connected to us."
He nodded faintly. "Yes. So what?"
"Then let me ask you—how did parallel spacetime come into being?"
He froze for a moment and looked at me, confusion in his eyes.
"Think about it. Could parallel spacetimes also be laboratories? All the parallel spacetimes, along with the one we inhabit, could be laboratories. We and our counterparts in those parallel spacetimes might merely be experimental subjects created in batches."
Zeng Dajiang said nothing, but I saw his expression change.
It became extremely unpleasant.
I had said it deliberately. I believed that the other me and the Doctor, who had been secretly eavesdropping on us, had definitely heard what I told Zeng Dajiang.
Zeng Dajiang looked at me and said, "If that were true, who could possibly have the means to do something on that scale?"
I shook my head. "I don't know either. Perhaps they came from outer space, or perhaps from Ancient Humans."
Zeng Dajiang said, "Ancient Humans are impossible. How could they treat us humans as experimental subjects?"
I sneered. "Why is it impossible? Perhaps Ancient Humans never considered us their own kind. Don't forget our hypothesis: we were never truly reproduced by Ancient Humans. We were merely created by them. Don't question whether they possessed such technology. Modern humanity had this technology many years ago—cloning. You know about it. We might be clones made by Ancient Humans."
"No, wait. But humanity has always survived and reproduced, hasn't it? Every newborn's birth is witnessed by modern humans. Births take place in