Two Kinds of Science-Fiction Innovations

Most common are the fictions that begin with Jules Verne, and concern the single artifact—a submarine, flying machine, or death ray—and its consquence for all of humanity. These extraordinary voyages—to use Verne's term—play along the fault line between what we think we are and what we can do. Nemo is no accident, or a tragic figure, but the natural consequence of the intersection between present-day humanity and extraordinary technology. Even 2001: A Space Odyssey plays on the same t...

 Butterfly effect

life might be emerged on earth because of some speck of organic dust carried on by a random meteorite which decided to hit up on earth on the right spot which have all other stuff for sustained evolution ,with out that single meteorite nothing would have ever happened or will ever one know about nothing happened