The demarcation problem in the philosophy of science is about how and where to draw the lines around science. The boundaries are commonly drawn between science and non-science, between science and pseudoscience, and between science and religion. A form of this problem, known as the generalized problem of demarcation subsumes all three cases. The generalized problem looks for criteria for deciding which of two theories is the more scientific. Philosophy of science is the branch of philosophy that studies the philosophical assumptions, foundations, and implications of science, including the formal sciences, natural sciences, and social sciences. ... Part of a scientific laboratory at the University of Cologne. ... Phrenology is regarded today as a classic example of pseudoscience. ... Religious and scientific modes of knowledge Generally speaking, religion and science use different methods in their effort to ascertain Truth. ...

After over a century of dialogue among philosophers of science and scientists in varied fields, and despite broad agreement on the basics of scientific method,^[1] the boundaries between science and non-science continue to be debated.^[2] Philosophy of science is the branch of philosophy that studies the philosophical assumptions, foundations, and implications of science, including the formal sciences, natural sciences, and social sciences. ... The physicist Albert Einstein is probably the most famous scientist of our time. ... Part of a scientific laboratory at the University of Cologne. ... hahahahahahahahahahahahahahahahahahahahaha ...

History

Science and religion part ways

The demarcation problem is a fairly recent creation. The problem can be traced back to a time when science and religion had already become independent of one another to a great extent. In 1874, the influential science historian John William Draper published his History of the Conflict between Religion and Science. In it he portrayed the entire history of scientific development as a war against religion. This view was propagated further by such prestigious followers as Andrew Dickson White in his essay A History of the Warfare of Science with Theology in Christendom (online). John William Draper (1811 - 1882), U.S. (English-born) chemist was a historian & photographer. ... Andrew Dickson White in 1885 Andrew Dickson White (November 7, 1832 – November 4, 1918) was an American diplomat, author, and educator, most known as the co-founder of Cornell University. ...

A number of myths surrounding the history of science owe their popularity to Draper and White. Examples include the view that Copernicus held back publication of his De revolutionibus orbium coelestium out of fear of persecution by the church and the idea that medieval Christians believed in a flat earth. There are many stories that inform our understanding of the history of science and technology. ... Nicolaus Copernicus (in Latin; Polish Mikołaj Kopernik, German Nikolaus Kopernikus - February 19, 1473 – May 24, 1543) was a Polish astronomer, mathematician and economist who developed a heliocentric (Sun-centered) theory of the solar system in a form detailed enough to make it scientifically useful. ... Title page of De revolutionibus De revolutionibus orbium coelestium (English: On the Revolutions of the Heavenly Spheres, Polish: O obrotach sfer niebieskich) is the seminal work on heliocentric theory and the masterpiece of the great Polish astronomer Nicolaus Copernicus. ... 15th century adaptation of a T-O map. ...

Historically speaking, the relationship between science and religion has been more complicated. Many scientists were of course very religious, and religion was often a chief motivator and sponsor of scientific investigation. However towards the end of the 19th century, science and religion came to be seen by the public as being increasingly at odds, a gradual phenomenon which came to a head around the debates over the work on evolution produced by Charles Darwin. Precursors and preconditions for the apparent split did exist before Darwin's publication of The Origin of Species, but it was this work which brought the debate into the popular British press and became a figurehead for the tensions between science and religion (a position it essentially still holds today). Alternative meaning: Nineteenth Century (periodical) (18th century — 19th century — 20th century — more centuries) As a means of recording the passage of time, the 19th century was that century which lasted from 1801-1900 in the sense of the Gregorian calendar. ... In 1832, while traveling on the Beagle, naturalist Charles Darwin collected giant fossils in South America. ... Charles Robert Darwin FRS (12 February 1809 – 19 April 1882) was an English naturalist [1] who achieved lasting fame by producing considerable evidence that species originated through evolutionary change, at the same time proposing the scientific theory that natural selection is the mechanism by which such change occurs. ... The title page of the 1859 edition of On the Origin of Species. ...

The work by Draper and White must be seen as directly coming out of this social climate, and their model of science and religion as being eternally opposed, if not historically accurate, became a dominant social trope. Sociologists of science have studied the attempts to erect hard distinctions between science and non-science as a form of boundary-work, emphasizing the high stakes for all involved in such activities. A trope is a rhetorical figure of speech that consists of a play on words, i. ... In academics, science studies (sometimes seen as science and technology studies) is an umbrella term for a number of approaches devoted to studying science, and as a discipline its participants often come from a wide variety of disciplines, usually history of science, sociology of science, philosophy of science, sociology of... In science studies, boundary-work is a term used to refer to instances in which boundaries, demarcations, or other divisions between fields of knowledge are created, advocated, attacked, or reinforced. ...

Logical Positivism

This new conception of science as something not only independent from religion, but actually opposed to it raised the inevitable question of what separates the two. Among the first to develop an answer were the members of the Vienna Circle. Their philosophical position, known as Logical positivism, espoused a theory of meaning which held that only statements about empirical observations are meaningful, effectively asserting that statements which are not derived in this manner (including religious and metaphysical statements) are by nature meaningless (see the verifiability theory of meaning also known as verificationism). Moritz Schlick around 1930 The Vienna Circle (in German: der Wiener Kreis) was a group of philosophers who gathered around Moritz Schlick when he was called to the Vienna University in 1922, organized in a philosophical association named Verein Ernst Mach (Ernst Mach Society). ... Logical positivism (later referred to as logical empiricism, rational empiricism, or neo-positivism) is a school of philosophy that combines positivism—which states that the only authentic knowledge is scientific knowledge—with a version of apriorism—the notion that some propositional knowledge can be had without, or prior to, experience. ... Empirical or a posteriori knowledge is propositional knowledge obtained by experience or sensorial information. ... Plato and Aristotle (right), by Raphael (Stanza della Segnatura, Rome). ... In the early twentieth century, the logical positivists put forth what came to be known as the verifiability theory of meaning. ... In philosophy, epistemic theories of truth are attempts to analyse the notion of truth in terms of epistemic notions such as belief, acceptance, verification, justification, perspective and so on. ...

Falsificationism

The philosopher Karl Popper noticed that the philosophers of the Vienna Circle had mixed two different problems and had accordingly given them a single solution: verificationism. In opposition to this view, Popper emphasized that a theory might well be meaningful without being scientific, and that, accordingly, a criterion of meaningfulness may not necessarily coincide with a criterion of demarcation. His own falsificationism, thus, is not only an alternative to verificationism; it is also an acknowledgment of the conceptual distinction that previous theories had ignored. Sir Karl Raimund Popper, CH, MA, Ph. ... In science and the philosophy of science, falsifiability, contingency, and defeasibility are roughly equivalent terms referring to the property of empirical statements that they must admit of logical counterexamples. ...

Popper saw demarcation as a central problem in the philosophy of science. In place of verificationism he proposed falsification as a way of determining if a theory is scientific or not. If a theory is falsifiable, then it is scientific; if it is not falsifiable, then it is not science. Some have taken this principle to an extreme to cast doubt on the scientific validity of many disciplines (such as macroevolution and physical cosmology). Falsifiability was one of the criteria used by Judge William Overton to determine that 'creation science' was not scientific and should not be taught in Arkansas public schools. For the scientific journal named Science, see Science (journal). ... Macroevolution refers to evolution that occurs above the level of species. ... Cosmology, as a branch of astrophysics, is the study of the large-scale structure of the universe and is concerned with fundamental questions about its formation and evolution. ... William Overton is a United States district court Judge of Little Rock, Arkansas. ... Creation science refers to the attempts by creationists (especially those who believe in a young Earth) to use the methods and empirical practices of science to support their side of the creation-evolution controversy. ... Official language(s) English Capital Little Rock Largest city Little Rock Area  Ranked 29th  - Total 53,179 sq mi (137,732 km²)  - Width 239 miles (385 km)  - Length 261 miles (420 km)  - % water 2. ... The term public school has different (and in some cases contradictory) meanings due to regional differences. ...

Falsifiability is a property of statements and theories, and is itself neutral. As a demarcation criterion, it seeks to take this property and make it a base for affirming the superiority of falsifiable theories over non-falsifiable ones as a part of science, in effect setting up a political position that might be called falsificationism. However, much that would be considered meaningful and useful is not falsifiable. Certainly non-falsifiable statements have a role in scientific theories themselves. What the Popperian criterion allows to be called scientific is open to interpretation. A strict interpretation would concede too little since there are no scientific theories of interest that are completely free of anomalies. Conversely, if we consider only the falsifiability of a theory and not the willingness of an individual or group to obtain or accept falsifying instances, we would then permit almost any theory. An anomaly is something which deviates from the standard or expected. ...

It is nevertheless very useful to know if a statement or theory is falsifiable, if for no other reason than it provides us with an understanding of the ways in which one might assess the theory. The Quine-Duhem thesis argues that it is not possible to prove that a statement is falsified; rather, falsification occurs when the scientific community agrees that a statement is falsified.

Kuhn and paradigm shifts

Thomas Kuhn, an American historian of science, has proven very influential in the philosophy of science, and is often connected with what has been called postpositivism or postempiricism. In his 1962 book The Structure of Scientific Revolutions, Kuhn divided the process of doing science into two different endeavors, which he called normal science and extraordinary science (which he sometimes also called revolutionary science). The process of "normal" science is what most scientists do while working within the what he calls the current accepted paradigm of the scientific community, and within this context Karl Popper's ideas on falsification as well as the idea of a scientific method still have some currency. This sort of work is what Kuhn calls "problem solving": working within the bounds of the current theory and its implications for what sorts of experiments should or should not be fruitful. However, during the process of doing "normal" science, Kuhn claimed, anomalies are generated, some of which lead to an extension of the dominant "paradigm" in order to explain them (like the idea of punctuated equilibrium within the "paradigm" of evolution), and others for which no satisfactory explanation can be found within the current model. When enough of these anomalies have accumulated, and scientists within the field find them significant (often a very subjective judgment), a "crisis period" is begun, Kuhn argues, and some scientists begin to participate in the activity of "extraordinary" science. In this phase, it is recognized that the old model is fundamentally flawed and cannot be adapted to further use, and totally new (or often old and abandoned) ideas are looked at, most of which will be failures. But during this time, a new "paradigm" is created, and after a protracted period of "paradigm shift," the new paradigm is accepted as the norm by the scientific community and integrated into their previous work, and the old paradigm is banished to the history books. The classic example of this is the shift from Maxwellian/Newtonian physics to Einsteinian/Quantum physics in the early 20th century. If the acceptance or failure of scientific theories relied only on simple falsification, according to Kuhn, then no theory would ever survive long enough to be fruitful, as all theories contain anomalies. Thomas Samuel Kuhn (July 18, 1922 – June 17, 1996) was an American intellectual who wrote extensively on the history of science and developed several important notions in the philosophy of science. ... Science is a body of empirical and theoretical knowledge, produced by a global community of researchers, making use of specific techniques for the observation and explanation of real phenomena, this techne summed up under the banner of scientific method. ... Philosophy of science is the branch of philosophy that studies the philosophical assumptions, foundations, and implications of science, including the formal sciences, natural sciences, and social sciences. ... In philosophy, postpositivism is, as the prefix indicates, a metatheoretical stance following positivism. ... 1962 (MCMLXII) was a common year starting on Monday (the link is to a full 1962 calendar). ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Since the late 1960s, the word paradigm (IPA: ) has referred to a thought pattern in any scientific discipline or other epistemological context. ... Sir Karl Raimund Popper, CH, MA, Ph. ... hahahahahahahahahahahahahahahahahahahahaha ... Punctuated equilibrium (or punctuated equilibria) is a theory in evolutionary biology which states that most sexually reproducing species will show little to no evolutionary change throughout their history. ... In 1832, while traveling on the Beagle, naturalist Charles Darwin collected giant fossils in South America. ... This article is in need of attention. ... Paradigm shift is the term first used by Thomas Kuhn in his 1962 book The Structure of Scientific Revolutions to describe the process and result of a change in basic assumptions within the ruling theory of science. ... The luminiferous aether: it was hypothesised that the Earth moves through a medium of aether that carries light In the late 19th century the luminiferous aether (light-bearing aether), or ether, was a substance postulated to be the medium for the propagation of light. ... Classical mechanics is a branch of physics which studies the deterministic motion of objects. ... The first few hydrogen atom electron orbitals shown as cross-sections with color-coded probability density. ... Two-dimensional analogy of space-time distortion described in General Relativity. ... Fig. ... (19th century - 20th century - 21st century - more centuries) Decades: 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s As a means of recording the passage of time, the 20th century was that century which lasted from 1901–2000 in the sense of the Gregorian calendar (1900–1999...

The process by which Kuhn said a new paradigm is accepted by the scientific community at large does indicate one possible demarcation between science and pseudoscience, while rejecting Popper's simple model of falsification. Kuhn instead argued that a new paradigm is accepted mainly because it has a superior ability to solve problems that arise in the process of doing normal science. That is, the value of a scientific paradigm is its predictive power and its ability to suggest solutions to new problems while continuing to satisfy all of the problems solved by the paradigm that it replaces. Pseudoscience can then be defined by a failure to provide explanations within such a paradigm. The New York Times reported on Einsteins confirmed prediction. ...

Demarcation can be problematic in cases where standard scientific ways (experiments, logic, etc.) of assessing a theory or a hypothesis cannot be applied for some reason. An example would be of differentiating between the scientific status of metereology or medicine, on the one hand, and astrology, on the other; all these fields repeatedly fail to accurately predict what they claim to be able to predict, and all are able to explain the regular failure of their predictions.^[3]

Feyerabend and the problem of autonomy in science

There has been a post-Kuhn trend to downplay the difference between science and non-science, as Kuhn's work largely called to question the Popperian ideal of simple demarcation, and emphasized the human, subjective quality of scientific change. The radical philosopher of science Paul Feyerabend took these arguments to their limit, arguing that science does not occupy a special place in terms of either its logic or method, so that any claim to special authority made by scientists cannot be upheld. This leads to a particularly democratic and anarchist approach to knowledge formation. He claimed that there can be found no method within the history of scientific practice which has not been violated at some point in the advancing of scientific knowledge. Both Lakatos and Feyerabend suggest that science is not an autonomous form of reasoning, but is inseparable from the larger body of human thought and inquiry. If so, then the questions of truth and falsity, and correct or incorrect understanding are not uniquely empirical. Many meaningful questions can not be settled empirically — not only in practice, but in principle. This article is in need of attention. ... Philosophy of science is the branch of philosophy that studies the philosophical assumptions, foundations, and implications of science, including the formal sciences, natural sciences, and social sciences. ... Paul Karl Feyerabend (January 13, 1924 - February 11, 1994) was an Austrian-born philosopher of science, who later lived in England, the United States, New Zealand, Italy, and finally Switzerland. ... Lakatos – book by Brendan Larvor. ...

According to this way of thinking, the difficulty string theorists have had in applying experimental science would not bring in to question their status as scientists. Interaction in the subatomic world: world lines of pointlike particles in the Standard Model or a world sheet swept up by closed strings in string theory String theory is a model of fundamental physics whose building blocks are one-dimensional extended objects (strings) rather than the zero-dimensional points (particles...

Demarcation in contemporary scientific method

The criteria for a system of assumptions, methods, and theories to qualify as science today vary in their details from application to application, and vary significantly among the natural sciences, social sciences and formal science. The criteria typically include (1) the formulation of hypotheses that meet the logical criterion of contingency, defeasibility, or falsifiability and the closely related empirical and practical criterion of testability, (2) a grounding in empirical evidence, and (3) the use of scientific method. The procedures of science typically include a number of heuristic guidelines, such as the principles of conceptual economy or theoretical parsimony that fall under the rubric of Ockham's razor. A conceptual system that fails to meet a significant number of these criteria is likely to be considered non-scientific. The following is a list of additional features that are highly desirable in a scientific theory. The term natural science as the way in which different fields of study are defined is determined as much by historical convention as by the present day meaning of the words. ... The social sciences are groups of academic disciplines that study the human aspects of the world. ... A formal science is any one of several sciences that is predominantly concerned with abstract form, for instance, logic, mathematics, and the theoretical branches of computer science, information theory, and statistics. ... In philosophy and logic, contingency is the status of facts that are not logically necessary. ... In science and the philosophy of science, falsifiability, contingency, and defeasibility are roughly equivalent terms referring to the property of empirical statements that they must admit of logical counterexamples. ... Empirical is an adjective often used in conjunction with science, both the natural and social sciences, which means an observation or experiment based upon experience that is capable of being verified or disproved. ... Wikipedia does not have an article with this exact name. ... This page is a candidate to be copied to Wiktionary. ... Evidence has several meanings as indicated below. ... Heuristic is the art and science of discovery and invention. ... Parsimony, in the general sense, means taking extreme care at arriving at a course of action; or unusual or excessive frugality, extreme economy or stinginess. ... Occams Razor (also Ockhams Razor or any of several other spellings), is a principle attributed to the 14th century English logician and Franciscan friar, William of Ockham that forms the basis of methodological reductionism, also called the principle of parsimony or law of economy. ...

• Consistent. Generates no obvious logical contradictions, and 'saves the phenomena', being consistent with observation.
• Parsimonious. Economical in the number of assumptions and hypothetical entities.
• Pertinent. Describes and explains observed phenomena.
• Falsifiable and testable. See Falsifiability and Testability.
• Reproducible. Makes predictions that can be tested by any observer, with trials extending indefinitely into the future.
• Correctable and dynamic. Subject to modification as new observations are made.
• Integrative, robust, and corrigible. Subsumes previous theories as approximations, and allows possible subsumption by future theories. ("Robust", here, refers to stability in the statistical sense, i.e., not very sensitive to occasional outlying data points.) See Correspondence principle
• Provisional or tentative. Does not assert the absolute certainty of the theory.

Scientific formalism is a possible term for two aspects of the presentation of science, particularly relevant to the physical sciences. ... In science and the philosophy of science, falsifiability, contingency, and defeasibility are roughly equivalent terms referring to the property of empirical statements that they must admit of logical counterexamples. ... This page is a candidate to be copied to Wiktionary. ... In physics, the correspondence principle is a principle, first invoked by Niels Bohr in 1923, which states that the behavior of quantum mechanical systems reduce to classical physics in the limit of large quantum numbers. ...

References

1. ^ Gauch, Hugh G., Jr., Scientific Method in Practice (2003) 3-7.
2. ^ Cover, J.A., Curd, Martin (Eds, 1998) Philosophy of Science: The Central Issues, 1-82.
3. ^ Thomas Kuhn in Grim, op. cit., pp. 126-7