The following is a 'list of science fiction themes'.
Overarching themes
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Cosmology
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Creation of the Universe
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Ultimate fate of the Universe
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Omega Point
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Ecology
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Symbionts
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★ Science fiction is used to raise awareness of ecological ideas. Lends itself well to dystopian futures. Frank Herbert and Kim Stanley Robinson are known for their serious concern with ecological issues.
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Economics
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★ "Age of Greater Scarcity", often in connection with ecological or post-apocalyptic themes. In such
dystopias, people are poorer and have fewer resources to draw on.
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Post-"Age of Scarcity" (arguments over how to distribute resources are irrelevant since anyone can have anything they reasonably want). Examples include:
★
★ #
Iain M. Banks'
The Culture
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Cory Doctorow's ''
Down and Out in the Magic Kingdom'', which uses a "
reputation economy"
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Frederik Pohl's
The Midas Plague
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History
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Alternate history
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★ History repeating itself (either on long or short scales)
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★ Scientific
prediction of the future (e.g.
psychohistory)
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Secret history
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Fantasy fiction
★ The
future
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Horror fiction
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Language
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★ Alien languages (e.g.
Klingon)
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★ All humans speaking one language (possibly
Esperanto)
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★ Current human languages evolving/splitting
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★ The
Sapir-Whorf Hypothesis being strongly true (e.g.
Babel 17 by
Samuel R. Delany or
The Languages of Pao by
Jack Vance)
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Universal Translators (e.g.
Babel fish)
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Military - strategy, weapons, ranks, technologies.
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Ray guns
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Space warfare
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Parallel worlds or universes.
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★ There is a space based civilization variant of this theme. This plot device allows writers to write
soft science fiction while accounting for the lack of technological advancement and thus similarity to the present day.
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Religious ideas in science fiction
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Sex (including
gender roles,
polygamy,
sexuality and
procreation)
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Sociology and
sociobiology
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Astrosociology
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★ return to
feudalism
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★ hive-like
eusocial societies
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★ future
caste systems
Types of beings
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Androids and
Gynoids
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Cyborgs
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Robots and
humanoid robots
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Replicants
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Sexbots
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Superhumans
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Extraterrestrial life (see
Extraterrestrial life in culture)
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Alien invasion
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Astrobiology
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Benevolent aliens
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First contact
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★ Principles of non-interference (e.g.
Prime Directive)
★ Alternate intelligences
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Artificial intelligence
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★ Beings of pure mentality
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Hive minds
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Infomorphs - memories, characters and consciences of persons being uploaded to a computer or storage media
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Noosphere - the "sphere of human thought"
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Solipsism - a belief that the universe is entirely the creation of one's own mind
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Mutants
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Shapeshifters
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Clones
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Uplifted animals - using technology to "raise" non-human animals to human evolutionary levels
★ Characters
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Detective
Body and mind alterations
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Bio-implants
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Body modification, including
genetic modification
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Bionics
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Cybernetics
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Invisibility
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Life extension and
immortality
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Artificial organs
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Cloning
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Cryonics
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The Organ Bank Problem - a proposed problem in which the reduced death rate caused by
organ transplants would lead to a shortage of organs available for transplant
★ Mind interfacing
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★ Memory removal/editing
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Mind control
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Mind uploading
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★ Neural implants to directly interface with machinery
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Nanotechnology
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Psi powers and psychic phenomenon
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Clairvoyance
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Telepathy
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Telekinesis
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Resizing (size-changing, miniaturization, magnification, shrinking, and enlargement)
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Shapeshifting
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Telepathy
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Teleportation
Possible futures
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Alien invasions
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Apocalypses or world wide disasters
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Post-apocalyptic life - new societies that develop after the event
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Posthumanism
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Ultimate fate of the Universe
Political structures
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Dystopias and
utopias
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Galactic empires
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Interstellar federation of planets
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Totalitarianism vs.
Libertarianism (see:
Libertarian science fiction)
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World government
★ Workable
anarchism (see:
Anarcho-capitalist literature)
Habitats
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Arcologies - enormous habitats (hyperstructures) of extremely high human population density
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Space colonization
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Terraforming
Travel
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Travel to the Earth's center
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Time travel
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Alternate histories: time travel can be used as a plot device to explore
parallel universes. While alternate history has its own category (see above), it often occurs in time travel stories as well.
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Anachronism
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★ The
Grandfather paradox -- e.g. Can someone go back in time and kill his parents before they beget the killer?
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Space exploration
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Interstellar travel
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Faster-than-light travel and communications
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Hyperspace
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Warp drives
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Wormholes
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Ansibles
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★ Very nearly light speed
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Bussard ramjets
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★ Ursula LeGuin's NAFAL ships, and the
Twin paradox
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★ Much slower than Light
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Generation ship
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Sleeper ship
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★ Moving planets
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Space stations
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Colonization of other planets, moons,
asteroids, etc.
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Terraforming
Technologies
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Artificial gravity
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Artificial intelligence
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von Neumann machines
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Singularity
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Moreaus/
Unpeople
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Virtual reality and
simulated reality
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Weapons
See also
★
List of science fiction topics
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Science fiction genre
★ http://www.projectrho.com/rocket/ "Atomic Rocket": a big website about space travel fiction technology and aliens