do you think will most likely happen, and the choices are:
1. Star Trek (in which intersteller flight with faster-than-light travel is fully established).
2. Logan's Run (the movie not the book, in which the Earth is in ruins except for one known domed-city, and no space travel). And
3. Imperial Earth ( a novel by Arthur C. Clarke about a guy Duncan MacKenzie? who lives on Saturn's moon Titan and comes to Earth in a slow moving spaceship, it takes something like two weeks for the travel, so there is still no going outside the solar-system).
Star Trek would be the coolest and I'd hate for it to end-up like Logan's Run, but I believe that Imperial Earth is the most realistic since I don't know if faster-than-light travel is possible without any help such as worm-holes either natural or artificial (if you can make them, that is), bending space, or whatever (tachyons or anti-matter use).