He feels a profound pang at that suggestion, and it shows on his face.

"That would be ... my God." He sits back in his chair. "Do you know, I have never so much as considered the prospect of anyone else from my world appearing here?"

Because, quite honestly, he thinks of them all as gone. And he thinks of himself as having been singled out for some other purpose, hence his being here. Could any of the others have been similarly chosen? It troubles him to think.