The brightest minds in our field have been trying to find a definition of science fiction for these past seventy years. The short answer is, science fiction stories are given as possible, not necessarily here and now, but somewhere, sometime.
Larry NivenThere is a technical, literary term for those who mistake the opinions and beliefs of characters in a novel for those of the author. The term is 'idiot'.
Larry NivenOnce every hundred years, the Los Angeles smog rolls away for a single night, leaving the air as clean as interstellar space. That way the gods can see if Los Angeles is still there. If it is, they roll the smog back so they won't have to look at it.
Larry NivenBoredom is my worst enemy. It's killed a lot of my friends, but it won't get me. When I get bored, I go risk my life somewhere.
Larry Niven