realism vs sci-fi

realism

noun
  • The viewpoint that an external reality exists independent of observation. 

  • A concern for fact or reality and rejection of the impractical and visionary. 

  • A doctrine that universals are real—they exist and are distinct from the particulars that instantiate them. 

  • An artistic representation of reality as it is. 

sci-fi

How often have the words realism and sci-fi occurred in a corpus of books? (source: Google Ngram Viewer )