Editing List of science fiction themes (section)

==Overarching themes==
{{See also|Science fiction genre}}
*[[First contact (science fiction)|First contact]] with aliens
*[[Artificial intelligence in fiction|Artificial intelligence]]
**[[Machine rule]]/[[Cybernetic revolt]]/[[AI takeover]]
*[[Extraterrestrials in fiction]]
*End of humanity: [[Apocalyptic and post-apocalyptic fiction]]
*The [[future]]
**[[Apocalyptic and post-apocalyptic fiction]]: Apocalypses or worldwide disasters and [[Post-apocalypse|new societies that develop after the event]]
*[[History]]
**[[Alternate history (fiction)|Alternate history]]
**Scientific [[prediction]] of the future (e.g. [[Psychohistory (fictional)|psychohistory]])
*Human fears: [[List of science fiction horror films]]
*[[Language]]
**[[Alien language]]s (e.g. [[Klingon language|Klingon]], [[Hutt (Star Wars)|Hutt]]ese)
**The [[Sapir–Whorf Hypothesis]] (e.g. ''[[Babel 17]]'', ''[[The Languages of Pao]]'')
**[[Universal translator]]s (e.g. Babel fish)
*[[Military science fiction|Military/conflicts]]
**[[Interstellar war]]
**[[Weapons in science fiction]]
*[[Parallel universe (fiction)|Parallel world]]s or [[multiverse]]
*
*[[Philosophical fiction|Philosophies and philosophical ideas]]
*[[Sex and sexuality in speculative fiction|Sex and sexuality]]
**[[LGBT themes in speculative fiction|LGBT themes]]
**[[Gender in speculative fiction|Gender]]
**[[Reproduction and pregnancy in speculative fiction|Reproduction and pregnancy]]
*[[Simulated reality]] and [[Simulated consciousness (science fiction)|consciousness]]
*[[Social science fiction]]
*[[Technological singularity]]
*[[Science fantasy|Themes of fantasy fiction]]