Fiction and Fantasy

Is there any discrimination in between  science fiction and science fantasy?Yes there is!Fiction is a Latin word which means ‘to invent’ and fantasy is a Greek word meaning’to imagine’. Both are infact lumped together in general understanding of sci fi.In science fiction the science and technology is depicted as whatever it is withought distortions while in science fantasy  even wild imaginations are acceptable to many like time travel,anti gravity themes etc.But this is the aspect where a deviding line could be drawn in between good and bad sci fi.According to Jayant Narlikar,Indian sci fi writer many fantasy elements like journey faster than light could make  the science story a bad one despite all its good style and form.But this is again a debatable point lke many others of sci fi world controversies.
arvind