lpetrich
Contributor
There are two main axes of variation from
Hard science fiction to
Soft science fiction:
Grading SF for Realism - Kheper
Mundane literature -- (hard end) science fiction (soft end) -- fantasy
"Mundane literature" is intended as the opposite of "speculative fiction": science fiction to fantasy.
Now for the classification at kheper.net with my two ends:
- Nuts-and-bolts technology -- sociology
- Level of realism
Grading SF for Realism - Kheper
Seen in this light, we find this continuum:The following is a suggested rating as to the scientific authenticity of science fiction literature and popular culture. Please note that this is not a rating as to the enjoyability of the story, or its quality or value as imaginative literature! It is simply a rating as to the suggested scientific realism of the setting as described within the work in question. A soft science outlook for example is often part and parcel of the author’s desired outcome of the work.
Mundane literature -- (hard end) science fiction (soft end) -- fantasy
"Mundane literature" is intended as the opposite of "speculative fiction": science fiction to fantasy.
Now for the classification at kheper.net with my two ends:
- Mundane literature
- Hard SF
- Present-Day Tech: no big advances over present-day tech
- Ultra Hard: interplanetary colonization, terraforming genetic engineering, direct neural interface to computers, strong AI
- Very Hard: interstellar colonization, relativistic spaceships, vacuum-adapted life, nanotech, mind uploads, small number of ET civs
- Plausibly Hard: smaller than nanotech, wormholes, reactionless drive, sub-nanotech, FTL drives with time-travel paradoxes
- Firm: ET devices still work after being abandoned for a long time, medium number of ET civs, transplanted Earthlings
- Medium: FTL without real explanation, antigravity, disintegrator guns, psionics, large number of ET civs, ETs much like Earth organisms
- Soft Sci Fi
- Soft: forcefield barriers, anthropomorphic ETs with uniform psychologies and societies
- Very Soft: lots of technobabble (midichlorians, subspace anomalies, ...), lifeless planets with breathable atmospheres, lots of Earthlike planets, humanoid of the week, ET societies much like late 20th / early 21st cy US or past Earth ones, very uneven tech development (FTL spaceships but no life extension, ...)
- Mushy Soft: ionizing radiation makes an organism more advanced, alien races never before encountered speak perfect English without a translator, animals too large to stand in Earth gravity (Godzilla, giant insects), weapons that make energy beams without putting energy in, space battles in 2D but not 3D, interstellar travel without FTL or centuries-long voyage, mutants with super energy powers, disintegrator guns with clean effects
- Fantasy
