Science fiction creates an appetite for interstellar space exploration among certain people  Unfortunately, this appetite cannot be satisfied with any technology humanity will soon possess
Since gaps between expectations and reality spur discontent, no doubt one effect of science fiction has been to create an unproductive dissatisfaction with the way the world actually is
If science fiction has created an unproductive dissatisfaction with the way the world actually is, it has done so only by creating an appetite for interstellar space exploration among certain people.