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| name          = Fashionable Nonsense: Postmodern Intellectuals' Abuse of Science
| title_orig    = Impostures Intellectuelles
| translator    =
| image        = Fashionable Nonsense.jpg
| image_size    = 200px
| caption = The 1999 Picador edition
| author        = [[Alan Sokal]], [[Jean Bricmont]]
| illustrator  =
| cover_artist  =
| country      =
| language      = [[French language|French]]
| series        =
| subject      = [[Philosophy]]
| genre        =
| published    = 1997 (Editions Odile Jacob)(French) <br>1999 (English)
| media_type    = [[Paperback]]
| pages        = xiv, 300
| isbn          = 0-312-20407-8
| dewey=
| congress=
| oclc=770940534
| preceded_by  =
| followed_by  =
}}
'''''Fashionable Nonsense: Postmodern Intellectuals' Abuse of Science''''' ({{lang-fr|Impostures Intellectuelles}}), published in the UK as '''''Intellectual Impostures''''', is a book by [[Alan Sokal]] and [[Jean Bricmont]]. Sokal is best known for the [[Sokal Affair]], in which he submitted a deliberately absurd article<ref>{{cite web
| url = http://www.physics.nyu.edu/faculty/sokal/lingua_franca_v4/lingua_franca_v4.html
| title = A Physicist Experiments With Cultural Studies
| accessdate = March 5, 2008
| last = Sokal
| first = Alan
| authorlink = Alan Sokal
| work = [[Lingua Franca (magazine)|Lingua Franca]]
|date=May 1996
}}</ref> to ''[[Social Text]]'', a [[critical theory]] journal, and was able to get it published.
 
The book was published in French in 1997, and in English in 1998; the English editions were revised for greater relevance to debates in the English-speaking world.<ref name="EnglishPreface">{{cite book
  | last = Sokal
  | first = Alan
  | authorlink = Alan Sokal
  | author2 = [[Jean Bricmont]]
  | title = Intellectual Impostures
  | publisher = Profile Books
  | year = 1998
  | location = London
  | page = xii
  | isbn = 1-86197-631-3}}
</ref> As part of the so-called [[science wars]], the book criticizes [[postmodernism]] in academia for what it claims are misuses of scientific and [[mathematics|mathematical]] concepts in postmodern writing. According to some reports, the response within the [[humanities]] was "polarized."<ref name="Epstein97"/>
 
Critics of Sokal and Bricmont charge that they lack understanding of the writing they were criticizing. Responses from the scientific community were more supportive.
 
==The book's thesis==
''Fashionable Nonsense'' examines two related topics:
 
* the allegedly incompetent and pretentious usage of scientific concepts by a small group of influential philosophers and intellectuals;
* the problems of [[cognitive relativism]], the idea that "modern science is nothing more than a 'myth', a 'narration' or a 'social construction' among many others"<ref name="FN">{{cite book
  | last = Sokal
  | first = Alan
  | authorlink = Alan Sokal
  | coauthors = [[Jean Bricmont]]
  | title = Fashionable Nonsense
  | publisher = Picador
  | year = 1998
  | location = New York
  | pages =
  | isbn = 0-312-19545-1}}
</ref> as seen in the [[Strong Programme]] in the [[sociology of science]].
 
===Incorrect use of scientific concepts versus scientific metaphors===
The stated goal of the book is not to attack "philosophy, the humanities or the social sciences in general...[but] to warn those who work in them (especially students) against some manifest cases of charlatanism."<ref>Sokal and Bricmont, p 5.</ref> In particular to "deconstruct" the notion that some books and writers are difficult because they deal with profound and difficult ideas. "If the texts seem incomprehensible, it is for the excellent reason that they mean precisely nothing."<ref>Sokal and Bricmont, p 6.</ref>
 
The book includes long extracts from the works of [[Jacques Lacan]], [[Julia Kristeva]], [[Paul Virilio]], [[Gilles Deleuze]], [[Félix Guattari]], [[Luce Irigaray]], [[Bruno Latour]], and [[Jean Baudrillard]] who are considered by some{{Who|date=June 2011}} to be leading [[academic]]s of [[Continental philosophy]], [[critical theory]], [[psychoanalysis]] or [[social science]]s. Sokal and Bricmont set out to show how those intellectuals have used concepts from the [[physical science]]s and [[mathematics]] incorrectly. The extracts are intentionally rather long to avoid accusations of taking sentences out of context.
 
Sokal and Bricmont claim that they do not intend to analyze [[postmodernist]] thought in general. Rather, they aim to draw attention to the abuse of concepts from mathematics and physics, subjects they've devoted their careers to studying and teaching. Sokal and Bricmont define abuse of mathematics and physics as:
* Using [[scientific]] or [[pseudoscientific]] terminology without bothering much about what these words mean.
* Importing concepts from the [[natural sciences]] into the [[humanities]] without the slightest justification, and without providing any rationale for their use.
* Displaying superficial [[erudition]] by shamelessly throwing around technical terms where they are irrelevant, presumably to impress and intimidate the non-specialist reader.
* Manipulating words and phrases that are, in fact, meaningless.
* Self-assurance on topics far beyond the [[Skill|competence]] of the author and exploiting the prestige of science to give [[discourse]]s a veneer of rigor.
 
The book gives a chapter to each of the above mentioned authors, "the tip of the iceberg" of a group of intellectual practices that can be described as "mystification, deliberately obscure language, confused thinking and the misuse of scientific concepts."<ref>Sokal and Bricmont, p xi.</ref> For example, [[Luce Irigaray]] is criticised for asserting that [[mass-energy equivalence|E=mc<sup>2</sup>]] is a "sexed equation" because "it privileges the [[speed of light]] over other speeds that are vitally necessary to us"; and for asserting that [[fluid mechanics]] is unfairly neglected because it deals with "feminine" [[fluid]]s in contrast to "masculine" [[Solid mechanics|rigid mechanics]].<ref name="Dawkins_review" /> Similarly, Lacan is criticized for drawing an analogy between [[topology]] and mental illness that, in Sokal and Bricmont's view, is unsupported by any [[argument]] and is "not just false: it is gibberish".<ref>Sokal and Bricmont, p 23.</ref>
 
===The postmodernist conception of science===
 
Sokal and Bricmont highlight the rising tide of what they call [[cognitive relativism]], the belief that there are no objective truths but only local beliefs. They argue that this view is held by a number of people, including people who the authors label "postmodernists" and the [[Strong Programme]] in the sociology of science, and that it is illogical, impractical, and dangerous. Their aim is "not to criticize the left, but to help defend it from a trendy segment of itself."<ref name="SBxii">Sokal and Bricmont, p. xii</ref> Quoting [[Michael Albert]], "there is nothing truthful, wise, humane, or strategic about confusing hostility to injustice and oppression, which is leftist, with hostility to science and rationality, which is nonsense."<ref name="SBxii" />
 
==Response==
{{Criticism section|date=April 2011}}
 
According to ''[[New York Review of Books]]'' editor [[Barbara Epstein]], who was delighted by Sokal's hoax, within the [[humanities]] the response to the book was bitterly divided, with some delighted and some enraged;<ref name="Epstein97"/> in some [[reading group]]s, reaction was polarized between impassioned supporters and equally impassioned opponents of Sokal.<ref name="Epstein97">{{cite web
| url = http://www.wpunj.edu/newpol/issue22/epstei22.htm
| title = Postmodernism and the Left
| accessdate = March 5, 2008
| last = Epstein
| first = Barbara
| authorlink = Barbara Epstein
| work = [[New Politics (magazine)|New Politics]]<!-- vol. 6, no. 2 (new series), whole no. 22 -->
|date=Winter 1997
|archiveurl = http://web.archive.org/web/20080512004646/http://www.wpunj.edu/newpol/issue22/epstei22.htm <!-- Bot retrieved archive --> |archivedate = May 12, 2008}} quote: {{quotation|Probably no one concerned with postmodernism has remained unaware of it. People have been bitterly divided. Some are delighted, some are enraged. One friend of mine told me that Sokal's article came up in a meeting of a left reading group that he belongs to. The discussion became polarized between impassioned supporters and equally impassioned opponents of Sokal [...] Some of us who were delighted by Sokal's hoax, at one time had a more positive view of postmodernism.}}</ref>
 
===Support===
 
Philosopher [[Thomas Nagel]] has supported Sokal and Bricmont, describing their book as consisting largely of "extensive quotations of scientific gibberish from name-brand French intellectuals, together with eerily patient explanations of why it is gibberish,"<ref>{{cite book
  | last = Nagel
  | first = Thomas
  | authorlink = Thomas Nagel
  | title = Concealment and Exposure & Other Essays
  | publisher = Oxford University Press
  | year = 2002
  | pages = 164
  | isbn = 0-19-515293-X}}
</ref> and agreeing that "there does seem to be something about the Parisian scene that is particularly hospitable to reckless verbosity."<ref>Nagel, p. 165.</ref>
 
Several scientists have expressed similar sentiments[[Richard Dawkins]], in a review of this book, said regarding the discussion of [[Jacques Lacan|Lacan]]: "We do not need the mathematical expertise of Sokal and Bricmont to assure us that the author of this stuff is a fake. Perhaps he is genuine when he speaks of non-scientific subjects? But a philosopher who is caught equating the erectile organ to the square root of minus one has, for my money, blown his credentials when it comes to things that I ''don't'' know anything about."<ref name="Dawkins_review">{{cite web
|url=http://www.physics.nyu.edu/faculty/sokal/dawkins.html
|title=Postmodernism disrobed
|accessdate=March 18, 2008
|last=Dawkins
|first=Richard
|authorlink=Richard Dawkins
|date=9 July 1998
|work=[[Nature (journal)|Nature]], vol. 394
|pages=141–143
}}</ref>
 
===Criticism===
 
The book has been subject to heavy criticism by post-modern philosophers and by scholars with some interest in [[continental philosophy]]. [[Bruce Fink]]  offers a critique in his book ''Lacan to the Letter'', where he accuses Sokal and Bricmont of demanding that "serious writing" do nothing other than "convey clear meanings".<ref name="Fink_130">{{cite book
  | last = Fink
  | first = Bruce
  | authorlink = Bruce Fink
  | title = Lacan to the Letter
  | publisher = University of Minnesota Press
  | year = 2004
  | location = Minneapolis
  | page = 130
  | isbn = 0-8166-4320-2}}
</ref> Fink asserts that some concepts which Sokal and Bricmont consider arbitrary or meaningless do have roots in the history of linguistics, and that Lacan is explicitly using mathematical concepts in a metaphoric way, not claiming that his concepts are mathematically founded. He takes Sokal and Bricmont to task for elevating a disagreement with Lacan's choice of writing styles to an attack on his thought, which, in Fink's assessment, they fail to understand. Fink says that "Lacan could easily assume that his faithful seminar public... would go to the library or the bookstore and 'bone up' on at least some of his passing allusions".<ref name="Fink_130" />
 
This latter point has been disputed by [[Arkady Plotnitsky]] (one of the authors mentioned by Sokal in his [[Sokal affair|original hoax]]).<ref>Sokal and Bricmont, Appendix A.</ref> Plotnitsky says that "some of their claims concerning mathematical objects in question and specifically complex numbers are incorrect,"<ref>{{cite book
  | last = Plotnitsky
  | first = Arkady
  | authorlink = Arkady Plotnitsky
  | title = The Knowable and the Unknowable
  | publisher = University of Michigan Press
  | year = 2002
  | location = Ann Arbor
  | pages = 112–113
  | isbn = 0-472-09797-0}}
</ref> specifically attacking their statement that [[complex number]]s and [[irrational number]]s "have nothing to do with one another".<ref>Sokal and Bricmont, p. 25.</ref> Plotnisky here defends Lacan's view "of imaginary numbers as an extension of the idea of rational numbers—both in the general conceptual sense, extending to its ancient mathematical and philosophical origins ... and in the sense of modern algebra."<ref>Plotnitsky, 2002, p. 146</ref>  The first of these two senses refers to the fact that the extension of [[real number]]s to complex numbers mirrors the extension of [[rational number|rationals]] to reals, as Plotnitsky points out with a quote from [[Gottfried Leibniz|Leibniz]]: "From the irrationals are born the impossible or imaginary quantities whose nature is very strange but whose usefulness is not to be despised."<ref>Plotnitsky, 2002, p. 145 (in Leibniz's original Latin, the quote reads "Ex irrationalibus oriuntur quantitates impossibiles seu imaginariae, quarum mira est natura, et tamen non contemnenda utilitas").</ref> However, with regard to the second sense, which Plotnisky describes by stating that "all imaginary and complex numbers are, by definition, irrational,"<ref>Plotnitsky, 2002, p. 120</ref> mathematicians generally agree with Sokal and Bricmont in not taking complex numbers as [[irrational number|irrational]].<ref>{{cite book
  | last1 = Blakey
  | first1 = Joseph
  | last2 = Hutton
  | first2 = Maurice
  | title = Engineering Mathematics
  | publisher = Philosophical Library
  | year = 1960
  | page = 40}}
</ref><ref>{{cite book
  | last1 = Yan
  | first1 = Song Y.
  | last2 = Hellman
  | first2 = Martin E.
  | title = Number Theory for Computing
  | edition = 2nd
  | publisher = Springer
  | year = 2002
  | isbn = 3-540-43072-5
  | page = 15}}
</ref><ref>{{cite book
  | last = Phillips
  | first = George McArtney
  | title = Two Millennia of Mathematics: From Archimedes to Gauss
  | publisher = Springer
  | year = 2000
  | isbn = 0-387-95022-2
  | page = 47}}
</ref> Indeed, the concept of rational numbers has been extended into the complex domain to include [[Gaussian integer]]s and [[Gaussian rational]]s.
 
Plotnitsky goes on, however, to agree with Sokal and Bricmont that the "square root of –1" which Lacan discusses (and for which Plotnitsky introduces the symbol <math>\scriptstyle (L)\sqrt{-1}</math>) is not, in spite of its identical name, "identical, directly linked, or even metaphorized via the mathematical [[imaginary unit|square root of –1]],"<ref name="Plotnitsky147">Plotnitsky, 2002, p. 147</ref> and that the latter "is ''not'' the erectile organ."<ref name="Plotnitsky147" /> Lacan's assignment of new meanings to standard mathematical terms in this way, though supported by Plotnitsky as valid within the context of his work, is of course one of the things which Sokal and Bricmont object to.
 
While Fink and Plotnitsky question Sokal and Bricmont's right to say what definitions of scientific terms are correct, cultural theorists and literary critics [[Andrew Milner]] and [[Jeff Browitt]] acknowledge that right, seeing it as "defend[ing] their disciplines against what they saw as a misappropriation of key terms and concepts" by writers such as Lacan and Irigaray.<ref name="Milner">{{cite book
  | last1 = Milner
  | first1 = Andrew
  | last2 = Browitt
  | first2 = Jeff
  | author1-link = Andrew Milner
  | author2-link = Jeff Browitt
  | title = Contemporary Cultural Theory
  | publisher = Allen & Unwin
  | edition = 3rd
  | year = 2002
  | pages = 191–192
  | isbn = 1-86508-808-0}}
</ref>  However, they point out that [[Luce Irigaray]] might still be correct in asserting that [[mass-energy equivalence|E=mc<sup>2</sup>]] is a "masculinist" equation, since "the social genealogy of a proposition has no logical bearing on its truth value."<ref name="Milner" /> In other words, gender factors may influence ''which'' of many possible scientific truths are discovered. They also suggest that, in criticising Irigaray, Sokal and Bricmont sometimes go beyond their area of expertise in the sciences and simply express a differing position on gender politics.<ref name="Milner" />
 
In [[Jacques Derrida]]'s response, "Sokal and Bricmont Aren't Serious," first published in ''[[Le Monde]]'', Derrida writes that the Sokal hoax is rather "sad [''triste'']," not only because Alan Sokal's name is now linked primarily to a [[hoax]], not to [[science]], but also because the chance to reflect seriously on this issue has been ruined for a broad public forum that deserves better.<ref name="Derida">{{cite book |last=Derrida |first=Jacques |authorlink=Jacques Derrida |title=Paper Machine |origyear=1994 |year=2005 |publisher=Stanford University Press |location=Stanford |pages=70 |nopp=true |isbn=08-047-4619-2}}</ref> Derrida reminds his readers that science and philosophy have long debated their likenesses and differences in the discipline of [[epistemology]], but certainly not with such an emphasis on the [[nationality]] of the philosophers or scientists. He calls it ridiculous and weird that there are intensities of treatment by the scientists, in particular, that he was "much less badly treated," when in fact he was the main target of US press.<ref name="Derida"/> Derrida then proceeds to question the validity of their attacks against a few words he made in an off-the-cuff response during a conference that took place thirty years prior to their publication. He suggests there are plenty of scientists who have pointed out the difficulty of attacking his response.<ref>{{cite book |last=Derrida |first=Jacques |authorlink=Jacques Derrida |title=Paper Machine |origyear=1994 |year=2005 |publisher=Stanford University Press |location=Stanford |pages=71 |nopp=true |isbn=08-047-4619-2}}</ref> He also writes that there is no "relativism" or a critique of Reason and the Enlightenment in his works. He then writes of his hope that in the future this work is pursued more seriously and with dignity at the level of the issues involved.<ref>{{cite book |last=Derrida |first=Jacques |authorlink=Jacques Derrida |title=Paper Machine |origyear=1994 |year=2005 |publisher=Stanford University Press |location=Stanford |pages=72 |nopp=true |isbn=08-047-4619-2}}</ref>
 
==See also==
* ''[[Beyond the Hoax]]''
* [[Cargo cult science]]
* [[List of scientific metaphors]]
* [[Pseudoscience]]
* [[Science wars]]
* ''[[The Dictionary of Fashionable Nonsense]]''
 
==References==
{{Reflist}}
 
==Further reading==
*{{citation |year=1996 |author=Sokal, Alan D |title=Transgressing the Boundaries: Towards a Transformative Hermeneutics of Quantum Gravity |journal=Social Text |volume=46/47 |pages=217–252 |url=http://online.physics.uiuc.edu/courses/phys419/spring11/lectures/Sokal-transgressing-boundaries%5B1%5D.pdf |accessdate=21 March 2010 |doi=10.2307/466856}}
 
==External links==
* [http://emilkirkegaard.dk/en/wp-content/uploads/Fashionable-Nonsense-Postmodern-Intellectuals-Abuse-of-Science-Alan-Sokal-Jean-Bricmont.pdf "Fashionable Nonsense: Postmodern Intellectuals' Abuse of Science"], Alan Sokal and Jean Bricmont
* [http://mtprof.msun.edu/Fall1999/nosense.html Review by Matthew Benacquista]
* [http://www.math.jussieu.fr/~harris/Iknow.pdf "I know what you mean!"], review by Michael Harris
* [http://www.physics.nyu.edu/faculty/sokal/index.html Alan Sokal Articles on the "Social Text" Affair], including the original article
* [http://www.physics.nyu.edu/faculty/sokal/dawkins.html Review of ''Intellectual Impostures'' in Nature, 1998] by [[Richard Dawkins]]
* [http://www.elsewhere.org/pomo Post Modern Generator: an online computer simulation of PoMo writing described in "On the Simulation of Postmodernism and Mental Debility Using Recursive Transition Networks". An on-line copy is available from Monash University.]
 
[[Category:1997 books]]
[[Category:Post-structuralism]]
[[Category:Scientific skepticism media]]
[[Category:Sociology books]]
[[Category:Works by Alan Sokal]]
[[Category:Books by Jean Bricmont]]

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