American Literature Portfolio
horror, and related genres.
Science fiction differs from fantasy in that, within the context of the story, its imaginary
elements are largely possible within scientifically established or scientifically postulated laws
of nature (though some elements in a story might still be pure imaginative speculation).
Exploring the consequences of such differences is the traditional purpose of science fiction,
making it a "literature of ideas".Science fiction is largely based on writing entertainingly and
rationally about alternate possibilities in settings that are contrary to known reality.
These may include:
· A setting in the future, in alternative time lines, or in a historical past that contradicts
known facts of history or the archeological record
· A setting in outer space, on other worlds, or involving aliens
· Stories that involve technology or scientific principles that contradict known laws of
nature
annaabi.ee 
