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Hardness scaleEdit

Hardness Description Examples
1 Hard meticulously probable traveling between stars takes a really long time
2 Medium explores one improbable physics change or technology planck constant is localized, multiverse,
3 Soft breaks laws of physics in subtle ways, or for plot convenience. common movie issues; breaking glass, fighting in the air, cars exploding when hit with lead slugs,
faster than light travel, time travel or communication, tiny unlimited power source (iron man).
4 Fantasy blatant disregard for the laws of physics telekinesis, ghosts, magic

AuthorsEdit

Author Max Hardness Min Hardness Born Notes
Adam Roberts 4 Fantasy 1965
Alastair Reynolds 1 Hard 1 2 Medium 1 1966
Alice Bradley Sheldon 1915
Alice Mary Norton 1912
Arthur C. Clarke 1917
Barrington Bayley 1937
Ben Bova 1 Hard 1932
Bruce Sterling 1 Hard 4 Fantasy 1 2 1954
Catherine Asaro 4 Fantasy 1 1955
Charles Sheffield 1935
Charles Stross 4 Fantasy 1964
Chris Moriarty 3 Soft 1 1968 crippled tech 1
Dan Simmons 3 Soft 1 1948
David Brin 3 Soft 1 1950
David Geddes Hartwell 1941
Eric Nylund 3 Soft 1 1964
Frederik Pohl 1919
Geoffrey A. Landis 1 Hard 1 1955 Dystopian 1
Greg Egan 1 Hard 1 3 Soft 1 1961
Greg Bear 3 Soft 1 1951
Gregory Benford 1941
Hal Clement 1922
Iain M. Banks 3 Soft 1 1954
Ian McDonald 3 Soft 1 1960 inconsistent 1
Isaac Asimov 1919
James Blish 1921
James P. Hogan 1941
James White 1928
Jay Lake 4 Fantasy 1964
Joan D. Vinge 1944
John Varley 3 Soft 1 1947
Karen Traviss 4 Fantasy 1 1960
Ken Liu 4 Fantasy 1 1976
Ken MacLeod 3 Soft 1 1954
Kim Stanley Robinson 1 Hard 1 4 Non 1 1952
Kristi Brooks 4 Fantasy 1980
Larry Niven 1938
Linda Nagata 1 Hard 1 1960
Liz Williams 4 Fantasy 1 1965
Megan Lindholm 4 Fantasy 1952
Michael Harrison 1945
Michael Swanwick 4 Fantasy 1950
Nancy Kress 3 Soft 1 1948
Neal Asher 3 Soft 1 1961
Neal Stephenson 1 Hard 1 Hard 1959
Paul J. McAuley 1 Hard 1 1955
Peter Crowther 4 Fantasy 1 1949
Peter F. Hamilton 3 Soft 1 1960
Poul Anderson 1926
Ray Bradbury 1920
Richard Morgan 4 Fantasy 1965
Robert A. Heinlein 1907
Robert Jordan 4 Fantasy 4 Fantasy 1948
Robert L. Forward 1932
Robert Reed 1935
Robert Silverberg 1935
Samuel R. Delaney 1942
Sara King 4 Fantasy 1 1982
Stanislaw Lem 1921
Stephen Baxter 3 Soft 1 1957
Stephen King 4 Fantasy 1947
Tobias S. Buckell 4 Fantasy 1979
Tom Godwin 1915
Vernor Vinge 1944
William C. Dietz 1945
William Gibson 1 Hard 1948
Jérôme Cigut
Cory Doctorow 1971
Peter Watts 1958
Paul Raven
Gareth Powell 1970
Allen Steele 1958

See also Edit