A pseudo-science is an allegedly scientific step which does not respect the method of it.
This term, of normative connotation , is used with an aim of denouncing certain disciplines by dissociating them from the steps which one recognizes the scientific character .
One should not confuse “pseudo-scientist” and “not scientist”.
Indeed, the prefix pseudo , which comes from the Greek pseudês (“lying”), means, in its current direction, “false”. “Pseudo-scientist”, that one can translate by “allegedly scientific”, thus gives a character Péjoratif at the end. The term “pseudo-science” means that a knowledge or a nonscientific step with the claim to be a scientist. “Not scientist”, on his side, means simply that theory, belief or a knowledge do not concern the field of science, and do not have the claim to belong some.
In other words, the word pseudo-science characterizes a specious step, aiming at misleading while making believe that a scientific step is used, that with an aim of adapting itself will have it Science near most credulous. The mediumnity, for example, does not claim to raise of a step or a scientific knowledge, although she claims however with the reality of the phenomena that she pleads. A contrario , the Homéopathie wants to be a science, at the same time by its principles stated like natural laws and by implementation the regular of clinical studies aiming at showing that the homeopathic drugs have effects higher than those of placebo S. Beaucoup of chemists and doctors estimate for this reason that homeopathy is a pseudo-science since none the clinical studies carried out could show the effectiveness of the treatments suggested (the validity of the clinical studies and the Méta-analyzes S relating to the homeopathic remedies being the subject of sharp controversies). Its basic principles are more incompatible with the scientific knowledge (cf the Polémique on the principle of dilution in homeopathy).
It is at the XIXe century - under the influence of the Positivisme of Auguste Count, of the Scientisme and the Matérialisme - which was excluded from the field of the Science all that is not verifiable by the experimental method.
The expression " pseudo science" is old. In 1864 already, James Reddie wonders in these terms about the future of the still young anthropology: “While we attempted to arranges our facts - whether those already ascertain gold those expected hereafter to Be discovered - in accordance with nap false hypothesis, we should only succeed in constructing year elaborate pseudo - science , that might cut, indeed, the outward appearance off truth, goal would cuts nothing in stability”
In France, this term is inaugurated by the title of the review of the AFIS (French Association for the scientific information) Science and pseudo-sciences in 1985. There exist derivatives of which the term of “pseudo-medicine”, employed by Jean Brissonet in 2004 in the mixed work (free electronic version and version paper) pseudo-medicines: an oath of hypocrites .
Contrary, the astronomer and popularizer Carl Sagan make a description of the science which contains an implicit criticism of pseudo-sciences: science, “its only truth crowned is that there is no crowned truth. All the assertions must be examined with a critical spirit. The arguments of authority are without value. All that does not correspond to the facts must be rejected or revised. Science is not perfect. It is often misused. It is only one tool, but it is the best tool than we have. ”
Here certain characteristics called upon by the authors who try to qualify an assertion or a theory of pseudo-scientist. Only one external criterion, purely sociological, followed few internal criteria.
The sociological criterion is:
the discipline is not taught in the academic world .
If the discipline is not taught at the university and does not have publications at reading panel, then it is about a pseudo-science. This criterion could in theory being used by those which consider that it is not possible to find objective criteria on the speech of the discipline. However, it is a criterion seldom used today, in any case not by the authors who are leaning on the phenomenon and tried to release some from the definitions, like Robert Park, Martin Gardner, Richard Dawkins, Carl Sagan or Alan Sokal.
It is a criterion which can be used as justification by the defenders of certain pseudo-sciences, which will point out that the Astrologie, of time that she was taught at the university, with the Middle Ages, would not have been regarded as a pseudo-science. But this criterion is not used practically any more today, of as much less than of many emergent disciplines were unquestionably scientists (the génomique one and the protéomique one, very recently) before being taught at the university.
the empirical absence of checking of the assumptions suggested .
To be named science, it is necessary that a discipline proposes means of checking the assumptions empirically that it advances. Many scientists reproach for example the Psychanalyse for advancing assumptions which are not verifiable empirically, which would more bring the psychoanalysis closer to the philosophical Anthropologie that of true a Science. It is that an essential goal of science is to provide a description of the world while making use of definite concepts with precision, which intervene in Théorie S which one can check the validity or non-validity by experiments.
However, if they are concepts for which there does not exist (or not yet) of precise definition and that one can neither subject to the experimentation, nor to the observation, these studies leave the scientific framework. That does not want to necessarily say that these studies are without value in Philosophie, in Métaphysique, Théologie, etc In fact, the men and women of science speak about pseudo-science only if these Spéculation S borrows and deforms scientific terms to try to give a scientific substratum, generally near the general public. Otherwise, they preferably speak about nonscientific knowledge (for example, parallel medicines) or about occult sciences .
Impossibility of refuting the subjected assumptions .
methodological Errors and statistical handling of the results.
hasty Conclusions, or false conclusions, compared to the results.
Use of sophisms to support a conclusion.
the use of a name comprising the Suffix “~ logy ” to give an appearance of serious (for example “Graphology”);
The pseudo-scientists presenting their theses contradicting the recognized theories often employ fallacious arguments against the established scientists:
When a person observes “new” facts and proposes a new theory, it initiates a debate (via publications, of conferences, etc) and it tries to bring all the arguments favorable to the new thesis. People defending the old theory, or a concurrent theory, will bring the opposite arguments.
See also: Reading panel
The scientific publications are based on a system of reading panel ( referee ), which is given the responsability to make sure of the rigor with the articles (that they make well reference to former publications, that they rest on given experimental whose realization is described so that they can be reproduced). These editorial boards propose modifications with the articles (their members see passing from many articles on the covered subjects and help thus with coordination between the articles), and filter the articles if those do not answer the criteria of Rigueur.
This system is sometimes criticized. In particular, the members of the committees form to them-even part of Laboratoire S publishing on the subjects, and are thus judges and parts. Thus, certain scientists prefer to publish initially without reading panel (for example on the ArXiv) before subjecting the article at a committee: the signature of the article engaging the author, these scientists estimate that it will support itself of it the consequences in the event of erroneous result.
In the qualified disciplines of pseudo-sciences, the system of validation is structured much less, sometimes at all, from where the need for adopting an at the same time open and critical attitude on behalf of the established scientists.
The concept of Paradigme (a “representation of the world”) is very much used in the qualified disciplines of “pseudo-sciences”. The charge carried is that makes it possible never not to check the relevance of the explanations, remaining in the field of the Croyance. Accordingly, the basic assumption of the theory being thus never called into question, it has there possible alternative to this one.
So certain human activities correspond indeed to the “standard” definition of pseudo-sciences such as it is stated higher, other fields on the other hand are sometimes gathered wrongly under this label. To be described as pseudo-science, a field of knowledge (or in fact of pseudo-knowledge) must thus be made pass for scientist whereas, in the facts, it does not respect certain criteria of the scientific step.
Among pseudo-sciences most usually allowed one thus finds:
Certain partisans of the Paranormal want that one distinguishes pseudo-sciences from the following investigations:
The Exobiologie is sometimes regarded as a pseudo-science. But it rests on a scientific step, and its characteristic is to admit the possibility that its field of study can not exist: it is for the moment a " science without sujet".
There exists also a difficulty of defining discussed theories which are fed by practices not respecting completely the scientific step. With the eyes of its partisans, it is the case of the theory of cold fusion. These controversies often originate in an experimentation which seemed a priori convincing, but that no one did not manage to reproduce in a convincing way (the Mémoire of water is not included in this category). On the scientific debate elements extra-scientists are often superimposed which do not contribute to clear up question (lure of gain, political reasons, prestige of a person or an institution concerned, theory of the plot, etc).
These debates can sometimes relate to a field of entire research like the Sciences of education. Because the objective experimentation and measurements in this field are difficult and for lack of theoretical tools, sciences of education are severely attacked, in particular because they profit from a university recognition that their detractors judge undue even harmful). Some claim that this type of attack is reserved for new sciences which invest a field still little explored, and which the charge will thus die out with progress, but this argument has little weight when the two centuries of homeopathy or the thousands of years of astrology are considered.
The criterion of Réfutabilité of Karl Popper was sometimes used to declare certain research fields like nonscientists (the Darwinisme, the Historicisme, the Marxisme or the Psychanalyse). Actually, Popper itself admitted that it was an inadequate interpretation of its criterion of refutability, at least concerning the Darwinism which it accepted like a valid scientific theory. It was not the case, on the other hand, of the Marxism or the psychoanalysis. Being oneself the Darwinism or historical sciences, they thus act not of pseudo-sciences but of research programs scientific (or Paradigme S) which share the methods and the criterion of rationality of science but which is not as directly refutable as an individual theory. They are supported by a whole of coherent facts and have a strong explanatory capacity.
A French-speaking challenge, the international Challenge zetetic, remained open of 1987 to 2002.
The Million Dollar Challenge of James Randi is, as for him, always of topicality.
One can also indicate the Pataphysique, in particular the communications of Boris Vian, consisting in moving the mode of exposure and demonstration of a science or part of mathematics - reduced to a rhetoric - worms of the objects which escape its relevance.
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