I've just read the short story "Explorers we" by Philip K. Dick. The story is only about a half dozen pages and tells us about the return of spacemen from a space trip. Finding themselves back on the Earth they met quite a strange acceptance. At the end of the story we see that these spacemen are a sort of clones of the real ones mysteriously made up by the something extraterrestrial. The idea of extraterrestrial clones looks like that in "Solaris" by Stanislaw Lem which was discussed in the big film's thread. The difference is that in the Philip Dick's story we see the world from the clones' point of view. It is funny that both "Explores we" and "Solaris" were written by different authors at the same time.