Thomas Samuel Kuhn
2008/9 Schools Wikipedia Selection. Related subjects: Philosophers
| Western Philosophy 20th-century philosophy |
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| Full name | Thomas Samuel Kuhn |
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| Birth | July 18, 1922 Cincinnati, Ohio |
| Death | June 17, 1996 |
| School/tradition | Analytic |
| Main interests | Philosophy of science |
| Notable ideas | Paradigm shift Incommensurability "Normal" science |
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Thomas Samuel Kuhn (surname pronounced /ˈkuːn/; 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.
Life
Thomas Kuhn was born in Cincinnati, Ohio to Samuel L. Kuhn, an industrial engineer, and Minette Stroock Kuhn. He obtained his bachelor's degree in physics from Harvard University in 1943, and master's and Ph.D in physics in 1946 and 1949, respectively. He later taught a course in the history of science at Harvard from 1948 until 1956 at the suggestion of university president James Conant. After leaving Harvard, Kuhn taught at the University of California, Berkeley, in both the philosophy department and the history department, being named Professor of the History of Science in 1961. At Berkeley, he wrote and published (in 1962) his best known and most influential work: The Structure of Scientific Revolutions. In 1964 he joined Princeton University as the M. Taylor Pyne Professor of Philosophy and History of Science. In 1979 he joined the Massachusetts Institute of Technology (MIT) as the Laurance S. Rockefeller Professor of Philosophy, remaining there until 1991. In 1994 he was diagnosed with cancer of the bronchial tubes, of which he died in 1996.
Kuhn was married twice, first to Kathryn Muhs (with whom he had three children) and later to Jehane Barton (Jahane R. Kuhn).
The Structure of Scientific Revolutions
In The Structure of Scientific Revolutions (SSR) Kuhn argued that science does not progress via a linear accumulation of new knowledge, but undergoes periodic revolutions, also called " paradigm shifts" (although he did not coin the phrase), in which the nature of scientific inquiry within a particular field is abruptly transformed. In general, science is broken up into three distinct stages. Prescience, which lacks a central paradigm, comes first. This is followed by " normal science", when scientists attempt to enlarge the central paradigm by "puzzle-solving". Thus, the failure of a result to conform to the paradigm is seen not as refuting the paradigm, but as the mistake of the researcher, contra Popper's refutability criterion. As anomalous results build up, science reaches a crisis, at which point a new paradigm, which subsumes the old results along with the anomalous results into one framework, is accepted. This is termed revolutionary science.
In SSR, Kuhn also argues that rival paradigms are incommensurable—that is, it is not possible to understand one paradigm through the conceptual framework and terminology of another rival paradigm. For many critics, for example David Stove ( Popper and After, 1982), this thesis seemed to entail that theory choice is fundamentally irrational: if rival theories cannot be directly compared, then one cannot make a rational choice as to which one is better. Whether or not Kuhn's views had such relativistic consequences is the subject of much debate; Kuhn himself denied the accusation of relativism in the third edition of SSR, and sought to clarify his views to avoid further misinterpretation. Freeman Dyson has quoted Kuhn as saying "I am not a Kuhnian!", referring to the relativism that some philosophers have developed based on his work.
The book was originally printed as an article in the International Encyclopedia of Unified Science, published by the logical positivists of the Vienna Circle.
The enormous impact of Kuhn's work can be measured in the changes it brought about in the vocabulary of the philosophy of science: besides "paradigm shift", Kuhn raised the word " paradigm" itself from a term used in certain forms of linguistics to its current broader meaning, coined the term " normal science" to refer to the relatively routine, day-to-day work of scientists working within a paradigm, and was largely responsible for the use of the term " scientific revolutions" in the plural, taking place at widely different periods of time and in different disciplines, as opposed to a single "Scientific Revolution" in the late Renaissance. The frequent use of the phrase "paradigm shift" has made scientists more aware of and in many cases more receptive to paradigm changes, so that Kuhn’s analysis of the evolution of scientific views has by itself influenced that evolution.
Kuhn's work has been extensively used in social science; for instance, in the post-positivist/ positivist debate within International Relations. Kuhn is credited as a foundational force behind the post- Mertonian Sociology of Scientific Knowledge.
A defense Kuhn gives against the objection that his account of science from The Structure of Scientific Revolutions results in relativism can be found in an essay by Kuhn called "Objectivity, Value Judgment, and Theory Choice." In this essay, he reiteriates five criteria from the penultimate chapter of SSR that determine (or help determine, more properly) theory choice:
1 - Accurate - empirically adequate with experimentation and observation
2 - Consistent - internally consistent, but also externally consistent with other theories
3 - Broad Scope - a theory's consequencies should extend beyond that which it was initially designed to explain
4 - Simple - the simplest explanation, principally similar to Occam's Razor
5 - Fruitful - a theory should disclose new phenomena or new relationships among phenomena
He then goes on to show how, although these criteria admittedly determine theory choice, they are imprecise in practice and relative to individual scientists. According to Kuhn, "When scientists must choose between competing theories, two men fully committed to the same list of criteria for choice may nevertheless reach different conclusions." For this reason, basically, the criteria still are not "objective" in the usual sense of the word because individual scientists reach different conclusions with the same criteria due to valuing one criterion over another or even adding additional criteria for selfish or other subjective reasons. Kuhn then goes on to say, "I am suggesting, of course, that the criteria of choice with which I began function not as rules, which determine choice, but as values, which influence it." Because Kuhn utilizes the history of science in his account of science, his criteria or values for theory choice are often understood as descriptive normative rules (or more properly values) of theory choice for the scientific community rather than prescriptive normative rules in the usual sense of the word "criteria," although there are many varied interpretations of Kuhn's account of science.
The Polanyi-Kuhn Debate
Scientific historians and scholars have noted similarities between Kuhn's work and the work of Michael Polanyi. Although they used different terminologies, both scientists believed that scientists' subjective experiences made science a relativistic discipline. Polanyi lectured on this topic for decades before Kuhn published "The Structure of Scientific Revolutions."
Supporters of Polanyi charged Kuhn with plagiarism, as it was known that Kuhn attended several of Polanyi's lectures, and that the two men had debated endlessly over the epistemology of science before either had achieved fame. In response to these critics, Kuhn cited Polanyi in the second edition of "The Structure of Scientific Revolutions," and the two scientists agreed to set aside their differences in the hopes of enlightening the world to the dynamic nature of science. Despite this intellectual alliance, Polanyi's work was constantly interpreted by others within the framework of Kuhn's paradigm shifts, much to Polanyi's (and Kuhn's) dismay.
Honours
Kuhn was named a Guggenheim Fellow in 1954, and in 1982 was awarded the George Sarton Medal by the History of Science Society. He was also awarded numerous honorary doctorates.
Trivia
- Kuhn interviewed and taped Danish physicist Niels Bohr the day before Bohr's death. The recording contains the last words of Niels Bohr caught on tape.