john@hp-pcd.UUCP (06/23/83)
#R:otuxa:-24300:hp-pcd:13100002:000:522 hp-pcd!john Jun 22 08:57:00 1983 Most Sci-Fi that deals with time travel runs into the problem of what happens if you go back and kill your ancestors. Issac Asimov did a story called "The End of Eternity" where you could go back and totally wreck your own past, but if you were inside a "time field" when the change occured then you would not be affected. This made it difficult for time travlers to visit home because chances are their parents never existed. Im sure a similar effect could be possible in Star Trek. John Eaton hplabs!hp-pcd!john