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Thought Experiments

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  • Nenad Miscevic 0

University of Maribor, Maribor, Croatia

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  • Provides a new definition and analysis of thought experimenting that brings it closer to laboratory experimenting
  • Shows a principled way to respond to criticism of thought experimenting and a self-help project for practicing
  • Proposes a way to systematize the history of important thought experiments in science and philosophy

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About this book

This book offers a readable introduction to the main aspects of thought experimenting in philosophy and science (together with related imaginative activities in mathematics and linguistics). 

It presents the main options in understanding thought experiments, from empiricism to Platonism, and discusses their strengths and weaknesses. However, it also provides some original perspectives on the topic. Firstly, it provides a new definition and analysis of thought experimenting that brings it closer to laboratory experimenting. Secondly, it develops the author’s earlier theory of “mental modelling”, proposed some decades ago by him, and some other researchers in the field as the crucial procedure in thought experimenting. The mental modelling approach links work with thought experimenting to cognitive science and to research on mental simulation which is a hot topic in present-day research. Thirdly, it proposes a principled way to respond to criticism of thought experimentingby “experimental philosophers” as they have been dominating the present-day debates. The response suggests a possible ameliorative, self-help project for thought experimenting. 

Finally, the book  provides a way to systematize the history of important thought experiments in science and philosophy and thus connects, in an original way, the systematic investigation of experimenting to the historical work of famous thought experiments. It is of interest to scholars interested in history of ideas and philosophy of science.

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  • Aspects of Thought Experimenting in Philosophy and Science
  • Platonism on Understanding Thought-Experiments
  • Thought Experimenting and Laboratory Experimenting
  • Miscevic on Mental Modelling
  • Experimental Philosophers on Thought Experimenting
  • Systematic Investigation of Famous Thought Experiments
  • The Mental Modelling Approach and Research on Mental Simulation

Table of contents (7 chapters)

Front matter, what are thought experiments.

Nenad Miscevic

The Life and Importance of TEs

Understanding thought experiments, a theory of tes, do tes have a life of their own, the challenge of experimental philosophy, authors and affiliations, about the author.

Nenad Miscevic is Professor of philosophy at the Philosophical faculty in Maribor, Slovenia, and has been, until this year, Regular Visiting Professor at Central European University Budapest. He also taught as guest professor at Universities of Geneva, Trieste and Klagenfurt. He studied philosophy in Zagreb, Chicago, Paris and Ljubljana, where he defended his doctorate thesis. He has been President of European Society of Analytic Philosophy and has held presidential functions in philosophical societies of his home country.

Bibliographic Information

Book Title : Thought Experiments

Authors : Nenad Miscevic

DOI : https://doi.org/10.1007/978-3-030-81082-5

Publisher : Springer Cham

eBook Packages : Religion and Philosophy , Philosophy and Religion (R0)

Copyright Information : The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2022

Hardcover ISBN : 978-3-030-81081-8 Published: 30 September 2021

eBook ISBN : 978-3-030-81082-5 Published: 29 September 2021

Edition Number : 1

Number of Pages : X, 130

Number of Illustrations : 8 b/w illustrations, 1 illustrations in colour

Topics : Epistemology , Philosophy of Science , Philosophical and Historical Foundations of Science , Analytic Philosophy

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Thought Experiments

Thought experiments are devices of the imagination used to investigate the nature of things. We need only list a few of the well-known thought experiments to be reminded of their enormous influence and importance in the sciences: Newton's bucket, Maxwell's demon, Einstein's elevator, Heisenberg's gamma-ray microscope, Schrödinger's cat. The same can be said for their importance in philosophy. Much of ethics, philosophy of language, and philosophy of mind is based firmly on the results of thought experiments. Again, a short list makes this evident: Thompson's violinist, Searle's Chinese room, Putnam's twin earth, Parfit's people who split like an amoeba. The 17th century saw some of its most brilliant practitioners in Galileo, Descartes, Newton, and Leibniz. And in our own time, the creation of quantum mechanics and relativity are almost unthinkable without the crucial role played by thought experiments. Contemporary philosophy, even more than the sciences, would be severely impoverished without them.

1. Examples of Thought Experiments

2. objections to thought experiments, 3. types of thought experiments, 4. some recent views on thought experiments, bibliography, other internet resources, related entries.

Among scientists, Galileo and Einstein were, arguably, the most impressive thought experimenters, but they were by no means the first. Thought experiments existed throughout the middle ages, and can be found in antiquity, too. One of the most beautiful early examples (in Lucretius, De Rerum Natura ) attempts to show that space is infinite: If there is a purported boundary to the universe, we can toss a spear at it. If the spear flies through, it isn't a boundary after all; if the spear bounces back, then there must be something beyond the supposed edge of space, a cosmic wall that stopped the spear, a wall that is itself in space. Either way, there is no edge of the universe; space is infinite.

This example nicely illustrates many of the common features of thought experiments: We visualize some situation; we carry out an operation; we see what happens. It also illustrates their fallibility. In this case we've learned how to conceptualize space so that it is both finite and unbounded. Consider a circle, which is a one dimensional space: As we move around, there is no edge, but it is nevertheless finite. The universe might be a many-dimensional version.

Figure 1

Often a real experiment that is the analogue of a thought experiment is impossible for physical, technological, or financial reasons; but this needn't be a defining condition of thought experiments. The main point is that we seem able to get a grip on nature just by thinking, and therein lies the great interest for philosophy. How is it possible to learn apparently new things about nature without new empirical data?

Ernst Mach did a great deal to popularize the idea of a Gedankenexperiment . He also popularized the term, but he was not the first to use it. That honour seems to go to Georg Lichtenberg, writing about a century earlier (Schildknecht 1990). Mach developed an interesting empiricist view in his classic, The Science of Mechanics . We possess, he says, a great store of "instinctive knowledge" picked up from experience. Some of this is from actual experience and some we have inherited through the evolutionary process, thanks to the experience of our ancestors. This knowledge needn't be articulated at all, but comes to the fore when we encounter certain situations. One of his favourite examples is due to Simon Stevin. When a chain is draped over a double frictionless plane, as in Fig. 2a, how will it move? Add some links as in Fig. 2b. Now it is obvious. The initial setup must have been in static equilibrium. Otherwise, we would have a perpetual motion machine; and according to our experience-based "instinctive knowledge", says Mach, this is impossible.

Figure 2(a) and 2(b) “How will it move?”

Judith Thompson provided one of the most striking and effective thought experiments in the moral realm. Her example is aimed at a popular anti-abortion argument that goes something like this: The fetus is an innocent person with a right to life. Abortion results in the death of a fetus. Therefore, abortion is morally wrong. In her thought experiment we are asked to imagine a famous violinist falling into a coma. The society of music lovers determines from medical records that you and you alone can save the violinist's life by being hooked up to him for nine months. The music lovers break into your home while you are asleep and hook the unconscious (and unknowing, hence innocent) violinist to you. You may want to unhook him, but you are then faced with this argument put forward by the music lovers: The violinist is an innocent person with a right to life. Unhooking him will result in his death. Therefore, unhooking him is morally wrong.

However, the argument does not seem convincing in this case. You would be very generous to remain attached and in bed for nine months, but you are not morally obliged to do so. The parallel with the abortion case is evident. The thought experiment is effective in distinguishing two concepts that had previously been run together: “right to life” and “right to what is needed to sustain life.” The fetus and the violinist may each have the former, but it is not evident that either has the latter. The upshot is that even if the fetus has a right to life (which Thompson does not believe but allows for the sake of the argument), it may still be morally permissible to abort. Theorizing about thought experiments usually turns on the details or the patterns of specific cases. Familiarity with a wide range of examples is crucial for commentators. Most discussions of thought experiments include several illustrations (e.g., Brown 1991, Horowitz and Massey 1991, and Sorenson 1992). There are also two recent books devoted mainly to the presentation of brief, non-technical examples, Cohen 2005 and Tittle 2005. Some special examples with very nice animations can be found at John Norton's website (see below).

Of course, particular thought experiments have been contested. But for the most part, thought experimenting in the sciences has been cheerfully accepted. The great historian of physics, Pierre Duhem, is almost alone in his condemnation. A thought experiment is no substitute for a real experiment, he claimed, and should be forbidden in science. However, in view of the important role of actual thought experiments in the history of physics — from Galileo's falling bodies, to Newton's bucket, to Einstein's elevator — it is unlikely that anyone will feel or should feel much sympathy for Duhem's strictures.

Philosophers are more critical. They worry, with some justice, about how reliable our intuitions really are. Can we trust them in bizarre situations? Kathleen Wilkes, for instance, was very distrustful of Parfit's people splitting like an amoeba. She declared that we simply don't know what to say when thinking about this sort of thing. She declared that a thought experiment should not violate what we take to be the laws of nature. This would rule out Parfit's examples. But such a proposal seems much too strong. We learn a great deal about the world and our theories when we wonder, for instance, what would have happened after the big bang, if the law of gravity had been an inverse cube law instead of an inverse square. Would stars have failed to form? Reasoning about such a scenario is perfectly coherent and very instructive, even though it violates a law of nature.

There are other objections, too. Jonathan Dancy thinks thought experiments in ethics are circular. Daniel Dennett thinks they use folk concepts, so they are inevitably conservative. These objections can likely be met, but they illustrate an ongoing debate.

There are many ways of classifying thought experiments: science vs philosophy, or normative (moral or epistemic) vs factual, and so on. I will outline a taxonomy here based on how they function as evidence. The main division is constructive vs destructive, that is, a thought experiment might be used positively to establish a theory or it might be used negatively to undermine a theory. Each of these is subject to further divisions.

Thought experiments are used negatively in a number of different ways. The simplest of these is to draw out a contradiction in a theory, thereby refuting it. A second way is to show that the theory in question is in conflict with other beliefs that we hold. Schrödinger's cat, for instance, does not show that quantum theory (as interpreted by Bohr) is internally inconsistent. Rather it shows that it is conflict with some very powerful common sense beliefs we have about macro-sized objects such as cats. The bizarreness of superpositions in the atomic world is worrisome enough, says Schrödinger, but when it implies that same bizarreness at an everyday level, it is intolerable.

There is a third type that, in effect, undermines a central assuption or premiss of a thought experiment. Thompson showed that "right to life" and "right to what is needed to sustain life" had been run together. When distinguished, the argument against abortion is undermined. A fourth type of negative thought experiment is quite a bit more complex. I will call these counter thought experiments. Mach produced one against Newton and Dennett produced another against Jackson. Newton offered a pair of thought experiments as evidence for absolute space. One was the bucket with water climbing the wall, the other was a pair of spheres joined by a cord that maintained its tension in otherwise empty space. The explanation for these phenomena, said Newton, is absolute space: the bucket and the joined spheres are rotating with respect to space itself. In response, Mach said that, contra Newton, the two spheres would move toward one another thanks to the tension in the cord, and if we rotated a very thick, massive ring around a stationary bucket, we would see the water climb the bucket wall. Mach's counter thought experiment undermines our confidence in Newton's. Absolute space explained the phenomena in Newton's thought experiments, but now we're not so sure of the phenomena itself (at least, this is Mach's intent).

Figure 3. Stages in the bucket experiment Figure 4. Two spheres held by a cord in otherwise empty space

Frank Jackson created a much discussed thought experiment that aimed to show that physicalism is false. This is the doctrine that all facts are physical facts. In the thought experiment, Mary is a brilliant scientist who, from birth, is confined to a laboratory with only black and white experiences. She learns all the physical facts about perception there. One day, she leaves the laboratory and experiences colours for the first time; she learns what it's like to experience red. Clearly, says Jackson, she learns something new. Since she already knew all the physical facts, she must have learned something non-physical when she experienced colour. Thus, physicalism must be wrong.

Dennett replied to this thought experiment with one of his own. It begins like Jackson's, but when Mary leaves the lab, she says “Ah, colour perception is just as I thought it would be.” Like Mach, Dennett denies the phenomenon of the original thought experiment. And like Mach, his counter thought experiment is effective in undermining Jackson's in so far as it seems similarly plausible.

To be effective, counter thought experiments needn't be very plausible at all. In a court of law, the jury will convict provided guilt is established "beyond a reasonable doubt." A common defence strategy is to provide an alternative account of the evidence that has just enough plausibility to put the prosecution's case into some measure of doubt. That is sufficient to undermine it. A good counter thought experiment need only do that much to be effective.

Thought experiments can also be constructive. There are many ways a thought experiment could provide positive support for a theory. One of these is to provide a kind of illustration that makes a theory's claims clear and evident. In such cases thought experiments serve as a kind of heuristic aid. A result may already be well established, but the thought experiment can lead to a very satisfying sense of understanding. Newton provided a wonderful example showing how the moon is kept in its orbit in the just same way as an object falls to the earth. He illustrated this by means of a cannon shooting a cannon ball further and further. In the limit, the earth curves away as fast as the ball falls, with the eventual result being that the cannon ball will return to the spot where it was fired, and, if not impeded, will go around again and again. This is what the moon is doing. We could arrive at the same conclusion through calculation. But Newton's thought experiment provides that illusive understanding. It's a wonderful example of the “aha effect.”

Figure 5. “The shot heard around the world”

Einstein's elevator showed that light will bend in a gravitational field; Maxwell's demon showed that entropy could be decreased; Thompson's violinist showed that abortion could be morally permissible even when the fetus has a right to life; Newton's bucket showed that space is a thing in its own right; Parfit's splitting persons showed that survival is a more important notion than identity when considering personhood. I say they “showed” such and such, but, “purport to show” might be better, since some of these thought experiments are quite contentious. The thing they have in common is that they aim to establish something positive. Unlike destructive thought experiments, they are not trying to demolish an existing theory, though they may do that in passing.

Thomas Kuhn's "A Function for Thought Experiments" employs many of the concepts (but not the terminology) of his well-known Structure of Scientific Revolutions . On his view a well-conceived thought experiment can bring on a crisis or at least create an anomaly in the reigning theory and so contribute to paradigm change. Thought experiments can teach us something new about the world, even though we have no new empirical data, by helping us to re-conceptualize the world in a better way. Tamar Gendler has recently developed this view in a number of important respects.

Recent years have seen a sudden growth of interest in thought experiments. The views of Brown (1991) and Norton (1991, 1996) represent the extremes of platonic rationalism and classic empiricism, respectively. Norton claims that any thought experiment is really a (possibly disguised) argument; it starts with premisses grounded in experience and follows deductive or inductive rules of inference in arriving at its conclusion. The picturesque features of any thought experiment which give it an experimental flavour might be psychologically helpful, but are strictly redundant. Thus, says Norton, we never go beyond the empirical premisses in a way to which any empiricist would object. (For criticisms see Bishop 1999; Brown 1991, 2004a, 2004b; Haggqvist 1996; Gendler 1998, 2004; Nersessian 1993; and Sorenson 1992; and for a defense see Norton 1991, 1996, 2004a, and 2004b.)

By contrast, Brown holds that in a few special cases we do go well beyond the old data to acquire a priori knowledge of nature. (See also Koyré 1968.) Galileo showed that all bodies fall at the same speed with a brilliant thought experiment that started by destroying the then reigning Aristotelian account. The latter holds that heavy bodies fall faster than light ones ( H > L ). But consider (Fig. 6), in which a heavy cannon ball ( H ) and light musket ball ( L ) are attached together to form a compound object ( H + L ); the latter must fall faster than the cannon ball alone. Yet the compound object must also fall slower, since the light part will act as a drag on the heavy part. Now we have a contradiction. ( H + L > H and H > H + L ) That's the end of Aristotle's theory. But there is a bonus, since the right account is now obvious: they all fall at the same speed ( H = L = H + L ).

Figure 6. Galileo: “I don't even have to look”

This could be said to be a priori (though still fallible) knowledge of nature, since there are no new data involved, nor is the conclusion derived from old data, nor is it some sort of logical truth. This account of thought experiments can be further developed by linking the a priori epistemology to recent accounts of laws of nature that hold that laws are relations among objectively existing abstract entities. It is thus a rather Platonistic view, not unlike Platonistic accounts of mathematics such as that urged by Gödel. (For details see Brown 1991.)

The two views just sketched might occupy the opposite ends of a spectrum of positions on thought experiments, at least within the philosophy of science. Some of the promising alternative views include those of Sorensen (somewhat in the spirit of Mach) who holds that thought experiments are a "limiting case" of ordinary experiments; they can achieve their aim, he says, without being executed. (Sorensen's book is also valuable for its extensive discussion of thought experiments in a wide range of fields.) Other promising views include those of Gooding (who stresses the similar procedural nature of thought experiments and real experiments), Miscevic and Nersessian (each of whom tie thought experiments to "mental models"), and several of the accounts in Horowitz and Massey 1991. Besides these, a sample of recent excellent discussions includes: Arthur 1999; Gendler 1998, 2000, 2002a, 2004; Haggqvist 1996; Humphreys 1994; McAllister 1996, 2004; and many others. German readers will find the very recent book by Kühne (2005) a very thorough history as well as an interesting discussion of contemporary topics. The literature on thought experiments in the sciences continues to grow rapidly.

Outside of the philosophy of science, philosophers continue to debate the merits of particular thought experiments such as Searle's, Thompson's, Jackson's, and so on. At a more general level there is debate over the usefulness of highly contrived examples. Just how reliable are our intuitions in these cases anyway? The subject of intuition has itself been the topic of recent debate. A small but significant group of philosophers uphold their use while others downplay their reliability and significance. (See DePaul and Ramsey 1998 for a sample of articles on this topic.) The relationship between conceivability and possibility is another topic that has been aired recently and has much to do with thought experiments. (See Gendler and Hawthorne 2002.) The relation between thought experiments and literary fiction is starting to be explored. (See Swirski 2007.)

Thanks are due to Tamar Gendler, from whom I borrowed heavily in constructing the bibliography below. Much more can be found in the bibliographies in Sorenson 1992, Gendler 2000, and Kühne 2005.

  • Arthur, R., 1999, "On Thought Experiments as A Priori Science," International Studies in the Philosophy of Science , 13/3: 215-229
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  • Bishop, M., 1999, "Why Thought Experiments are Not Arguments", Philosophy of Science , 66 : 534-41
  • Bokulich, A., 2001, "Rethinking Thought Experiments", Perspectives on Science , 9/3: 285-307
  • Brendel, Elke, 2004, "Intuition Pumps and the Proper Use of Thought Experiments", Dialectica , 58/1: 88-108
  • Brown, James Robert, 1991, Laboratory of the Mind: Thought Experiments in the Natural Sciences , London: Routledge
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  • Brown, J.R., 2004a, "Why Thought Experiments Transcend Experience," in C. Hitchcock (ed.), Contemporary Debates in the Philosophy of Science , Malden, MA: Blackwell, pp. 23-43
  • Brown, James Robert, 2004b, "Peeking into Plato's Heaven." Philosophy of Science , vol. 71, 1126-1138
  • Bunzl, Martin, 1996, "The Logic of Thought Experiments." Synthese , 106/2 (Fall): 227-240
  • Buzzoni, Marco, 2004, Esperimento Ed Esperimento Mentale , Milano: FrankoAngeli
  • Cargile, James, 1987, "Definitions and Counterexamples." Philosophy , 62: 179-193
  • Cohen, M., 2005, Wittgenstein's Beetle and Other Classic Thought Experiments , Oxford: Blackwell
  • Cohnitz, Daniel, 2006, Gedankenexperimente in der Philosophie , Paderborn: Verlag GmbH
  • Cooper, Rachel, 2005, Metaphilosophy 36:3, 328
  • Dancy, Jonathan, 1985, "The Role of Imaginary Cases in Ethics." Pacific Philosophical Quarterly , 66 (January-April): 141-153
  • Dennett, D., 1991, Consciousness Explained , New York: Little Brown
  • Dennett, D., 2005, Sweet Dreams , Cambridge, MA: MIT Press
  • DePaul, M. And W. Ramsey (eds.), 2002, Rethinking Intuition: The Psychology of Intuition & Its Role in Philosophical Inquiry , New York: Rowan and Littlefield
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  • Gendler, Tamar Szabo, 2000, Thought Experiment: On the Powers and Limits of Imaginary Cases. NY: Garland Press (now Routledge).
  • Gendler, Tamar Szabo, 2002a, "Personal Identity and Thought-Experiments." Philosophical Quarterly , 52/206: 34-54.
  • Gendler, Tamar Szabo., 2002b, "Thought Experiment." Encyclopedia of Cognitive Science . NY/London: Nature/Routledge.
  • Gendler, Tamar Szabo, 2004, "Thought Experiments Rethought — and Reperceived." Philosophy of Science , 71: 1152-1164.
  • Gendler, Tamar Szabo, 2005, "Thought Experiments in Science." Encyclopedia of Philosophy . New York: MacMillan
  • Gendler, Tamar Szabo and John Hawthorne, eds., 2002, Conceivability and Possibility. NY/Oxford: Clarendon/Oxford University Press.
  • Genz, H., 1999, Gedankenexperimente , Weinheim: Wiley-VCH (in German)
  • Gooding, D., 1993, "What is Experimental About Thought Experiments?" in D. Hull, M. Forbes, and K. Okruhlik (eds.) PSA 1992 , vol. 2, East Lansing, MI: Philosophy of Science Association, pp. 280-290
  • Gooding, David C., 1992, "The Cognitive Turn, or, Why Do Thought Experiments Work?" In Giere ed., Cognitive Models of Science . Minneapolis: University of Minnesota Press, 1992, 45-76
  • Gooding, David C., 1994, "Imaginary Science." British Journal for the Philosophy of Science , 45/4 (December): 1029-1045
  • Hacking, I., 1993, "Do Thought Experiments have a Life of Their Own?" in D. Hull, M. Forbes, and K. Okruhlik (eds.) PSA 1992 , vol. 2, East Lansing, MI: Philosophy of Science Association, pp. 302-308
  • Haggqvist, S., 1996, Thought Experiments in Philosophy , Stockholm: Almqvist & Wiksell International
  • Horowitz, T. and G. Massey (eds.), 1991, Thought Experiments in Science and Philosophy , Savage, MD: Rowman and Littlefield
  • Humphries, P., 1994, "Seven Theses on Thought Experiments", in J. Earman et al ., (eds) Philosophical Problems of the Internal and External World , Pittsburgh: University of Pittsburgh Press, pp. 205-227
  • Ierodiakonou, K., 2005, "Ancient Thought Experiments: A First Approach", Ancient Philosophy , 25: 125-140
  • Irvine, A., 1991, "Thought Experiments in Scientific Reasoning," in Horowitz and Massey 1991, pp. 149-166
  • Jackson, F., 1982, "Epiphenomenal Qualia", Philosophical Quarterly , 32: 27-36
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  • Janis, Allen I., 1991, "Can Thought Experiments Fail?" In Horowitz and Massey 1991, pp. 113-118
  • King, Peter, 1991, "Mediaeval Thought-Experiments: The Metamethodology of Mediaeval Science." In Horowitz and Massey 1991, pp. 43-64
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  • Koyré, Alexandre, 1968, Metaphysics and Measurement . London: Chapman and Hall.
  • Kuhn, T., 1964, "A Function for Thought Experiments", reprinted in T. Kuhn, The Essential Tension , Chicago: University of Chicago Press, 1977, pp. 240-265
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  • Kujundzic, Nebojsa, 1992, "How Does the Laboratory of the Mind Work?" Dialogue , 32/3 (Summer): 573-578
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  • Laymon, Ronald, 1991, "Thought Experiments of Stevin, Mach and Gouy: Thought Experiments as Ideal Limits and as Semantic Domains." In Horowitz and Massey 1991, pp. 167-192.
  • Lennox, James G., 1991, "Darwinian Thought Experiments: A Function for Just-So Stories." In Horowitz and Massey 1991, pp. 223-245
  • Lichtenberg, Georg Christoph, 1983, Schriften und Briefe : Sudelbücher, Fragmente, Fabeln, Verse (Erster Band). Ed. Franz H. Mautner. Frankfurt: Insel Verlag
  • Mach, E., 1960, The Science of Mechanics , trans. by J. McCormack, sixth edition, LaSalle Illinois: Open Court
  • Mach, E., 1976, "On Thought Experiments", in Knowledge and Error , trans. by J. McCormack), Dordrecht: Reidel, pp. 134-147
  • Massey, Gerald, 1991, "Backdoor Analyticity." In Horowitz and Massey 1991, pp. 285-296
  • McAllister, James, 1996, "The Evidential Significance of Thought Experiments in Science", Studies in History and Philosophy of Science , 27/2: 233-250
  • McAllister, James, 2004, "Thought Experiments and the Belief in Phenomena" Proceedings of the 2002 Biennial Meeting of the Philosophy of Science Association, Philosophy of Science , 71: 1164-1175
  • McAllister, James, 2005, "The Virtual Laboratory: Thought Experiments in Seventeenth-Century Mechanics", in Helmar Schramm, Ludger Schwarte, and Jan Lazardzig, eds., Collection, Laboratory, Theater: Scenes of Knowledge in the 17th Century . New York: Walter de Gruyter; pp. 35-56
  • Miscevic , N., 1992, "Mental Models and Thought Experiments", International Studies in the Philosophy of Science , 6/3: 215-226
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  • Nersessian, N., 1993, "In the Theoretician's Laboratory: Thought Experimenting as Mental Modeling" in D. Hull, M. Forbes, and K. Okruhlik (eds.) PSA 1992 , vol. 2, East Lansing, MI: Philosophy of Science Association, pp. 291-301
  • Norton, J., 1991, "Thought Experiments in Einstein's Work", in Horowitz and Massey 1991, pp. 129-148
  • Norton, J., 1996, "Are Thought Experiments Just What You Always Thought?" Canadian Journal of Philosophy , 26: 333-366
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  • Norton, J., 2004b, "Why Thought Experiments Do Not Transcend Empiricism", in Christopher Hitchcock (ed.) Contemporary Debates in the Philosophy of Science. Oxford: Blackwell, pp. 44-66. [ Preprint available online ].
  • Parfit, Derek, 1984/1987, Reasons and Persons . Oxford: Clarendon Press
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  • Schildknecht, Christiane, 1990, Philosophische Masken: Literarische Formen der Philosophie bei Platon, Descartes, Wolff und Lichtenberg. Stuttgart: Metzler
  • Sorensen, R., 1992a, Thought Experiments , Oxford: Oxford University Press
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  • Stinner, A., 1990, Philosophy, Thought Experiments, and Large Context Problems in the Secondary Physics Course. International Journal of Science Education , 12/3: 244-157
  • Swirski, Peter, 2007, Of Literature and Knowledge: Explorations in Narrative Thought Experiments, Evolution and Game Theory . London & New York: Routledge
  • Thompson, Judith Jarvis, 1971, "A Defense of Abortion." Philosophy and Public Affairs , 1/1 (Fall): 47-66
  • Tittle, P., 2005, What If…Collected Thought Experiments in Philosophy , New York: Pearson Longman
  • Urbaniec, Jacek, 1988, "In Search of a Philosophical Experiment." Metaphilosophy , 19 (July-August): 294-306
  • Wilkes, Kathleen V., 1988, Real People: Personal Identity without Thought Experiments . Oxford: Clarendon Press
  • Witt-Hansen, Johannes, 1976, "H.C. Orsted, Immanuel Kant, and the Thought Experiment." Danish Yearbook of Philosophy , 13: 48-65
  • Yablo, Stephen, 1993, "Is Conceivability a Guide to Possibility?" Philosophy and Phenomenological Research , 53/1 (March): 1-42
  • Goodies , a collection of intriguing questions in the philosophy of science, some about thought experiments, by John Norton (U. Pittsburgh).

[Please contact the author with additional suggestions.]

Descartes, René | -->intuition --> | Leibniz, Gottfried Wilhelm | Mach, Ernst | Platonism: in metaphysics | rationalism vs. empiricism | -->science, philosophy of -->

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Thought Experiments in Science

  • Published 1 June 2015
  • Philosophy, Physics

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Thought experiments, formalization, and disagreement.

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Introduction: New Perspectives on Philosophical Thought Experiments

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  1. PDF Thought Experiments: State of the art

    experiments or thought experiment-like inferences by considering them. So in Part I, we tentatively expand our notion of thought experiment, while still covering the cases that are most discussed in the literature. We hope this provides a balance between historical scholarship on well-known thought experiments and those that are less well-known.

  2. PDF sites.tufts.edu

    physical facts. We experiment with thought, so to say, at little expense. Thus it shouldn't surprise us that, oftentimes, the thought experiment pre- cedes the physical experiment and prepares the way for it. Indeed, the physical investigations of Aristotle are mostly thought experiments in

  3. PDF THOUGHT EXPERIMENTS, EINSTEIN AND PHYSICS EDUCATION

    EINSTEIN'S THOUGHT EXPERIMENTS. Already as an adolescent, Einstein pondered the foundations of physics. In 1895, when he was 16 years old, he sent a paper to his uncle in Belgium about the ether and the magnetic field. [2] In his autobiographical notes of 1949, Einstein says:

  4. PDF T Thought Experiments

    One of the most discussed problems about thought experiments is how thought experiments are able to lead to new knowledge or understand-ing, despite not requiring new experience. James R. Brown's answer is that performing a thought experiment produces a new phenomenon in the mind (1986, 1991a, 1991b, 1992, 2004, 2007).

  5. PDF Thought Experiments in Ethics

    Thought Experiments in Ethics. Georg Brun [email protected]. Abstract This chapter suggests a scheme of reconstruction, which explains how scenarios, questions and arguments figure in thought experiments. It then develops a typology of ethical thought experiments according to their function, which can be epistemic, illustrative ...

  6. PDF Thought Experiments

    In a thought experiment it seems we can. start from a position of ignorance, sit and think, and gain new knowledge, despite the. input of no new empirical data. One aim of this paper is to explain the origin of this new. knowledge. The paper is split into four sections. The first argues that thought experiments in.

  7. PDF What are Thought Experiments?

    Thought experiments are carried out in the mind and involve something akin to experience; that is, we typically see something happening in a thought experiment. Often there is more than mere observation. As in a real experiment, there might be calculating, some application of theory, guesswork, and conjecture.

  8. PDF Thought Experiments and Experimental Philosophy

    t Experiments and Exp. mental Philosophy. Joachim Horvath 1 IntroductionIn recent years, there has been a lot of debate in philosophical methodology about the best rational reco. struction of philosophical thought experiments. Concerning this debate, I will first argue against the current consensus that our intuitive judgments about Gettier ...

  9. PDF Thought Experiments

    The thought experiment begins by supposing that mass is not in fact. transitive, so that the mass of A is equal to the mass of B, and B is equal to C, but C has a mass greater than A. The three masses, which take the form of perfectly elastic balls, are free to move around a frictionless, rigid ring.

  10. Thought Experiments

    Thought Experiments. First published Sat Dec 28, 1996; substantive revision Tue Nov 28, 2023. Thought experiments are basically devices of the imagination. They are employed for various purposes such an entertainment, education, conceptual analysis, exploration, hypothesizing, theory selection, theory implementation, etc.

  11. Thought Experiments

    This book offers a readable introduction to the main aspects of thought experimenting in philosophy and science (together with related imaginative activities in mathematics and linguistics). It presents the main options in understanding thought experiments, from empiricism to Platonism, and discusses their strengths and weaknesses.

  12. PDF Thought Experiments, Einstein, and Physics Education

    THOUGHT EXPERIMENTS . TEs have a long history and a natural connection to the devel­ pment of physical concepts. They can be traced back to Zeno's paradoxes of motion and Aristotle's program of explaining phenomena guided only by naked eye observation and rational thought. Galil championed TEs to show that

  13. Thought Experiments

    Thought experiments are devices of the imagination used to investigate the nature of things. We need only list a few of the well-known thought experiments to be reminded of their enormous influence and importance in the sciences: Newton's bucket, Maxwell's demon, Einstein's elevator, Heisenberg's gamma-ray microscope, Schrödinger's cat. The ...

  14. PDF Chasing the Light Einsteinʼs Most Famous Thought Experiment

    this thought experiment is widely cited and praised. All this is deceptive. The thought experiment is unlike Einstein's many other thought experiments in two ways. First and foremost, unlike them, it is entirely unclear how this thought experiment works. Upon encountering the thought experiment, most readers likely find the

  15. (PDF) Thought Experiments: Review and Recommendations

    Abstract. Thought experiments have been used as an effective methodological approach to advance theory in numerous scientific fields. However, they are underutilized in organizational behavior (OB ...

  16. [PDF] Thought Experiments in Science

    Thought Experiments in Science. M. Stuart. Published 1 June 2015. Philosophy, Physics. Thought experiments are a means of imaginative reasoning with an employment record longer than two and a half thousand years. Used by Aristotle, Galileo, Newton, Darwin, Maxwell, and Einstein, they form part of the education of every scientist alive today.

  17. PDF The Role of Thought Experiments in Science and Science Learning

    This chapter will (1) briefly review selected studies examining the nature of thought experiments in science; (2) review previous studies on the role that thought experiments can play in science instruction; (3) give case study examples of thought experiments (TEs) proposed by both teachers and students and the en-suing classroom discussions.

  18. PDF VCE Physics Einstein's Train and other 'Gedanken' experiments

    Einstein's Train and other 'Gedanken' experiments. In his book Relativity: The Special and the General Theory Einstein uses a 'thought experiment' involving lightning flashes striking a railway line at two different places, A and B, simultaneously to illustrate the difficulty of defining this concept. Since his use of this 'Gedanken ...

  19. PDF Examplesof"ThoughtExperiments" inScience andPhilosophy

    nts" in Science and PhilosophyPhil 488/594; Winter 2012[Science examples taken from James Brown The Laboratory of the Mind; Phi-losophy examples. taken from Julian Baggini The Pig that Wants to be Eaten.]Probably the most famous thought. experiment is Galileo's "Falling Bodies" experiment.The point of the thought experiment is to ...

  20. PDF Thought Experiments between Nature and Society

    Thought Experiments from Nature and Society), with Professor Miščević being the leading researcher. There is another additional point worth mentioning: in 2015, Professor Miščević celebrated his sixty-fifth birthday, so combining the research task with his celebration seemed like

  21. Einstein's thought experiments

    Einstein's thought experiments. A hallmark of Albert Einstein 's career was his use of visualized thought experiments (German: Gedankenexperiment[1]) as a fundamental tool for understanding physical issues and for elucidating his concepts to others. Einstein's thought experiments took diverse forms. In his youth, he mentally chased beams of light.

  22. PDF Simplifying Einstein's Thought Experiment

    ResearcherJune 11, [email protected]: Einstein's "Gedanken" experiments (thought experiments) - particularly his train-embankment thought experiments - were apparently intended to explain Special Relativity logically and in layman's terms, but they were written in an incredibly convoluted way, which seems to have resulted in t.

  23. (PDF) Thought Experiments

    PDF | On Jan 26, 2023, Michael T. Stuart published Thought Experiments | Find, read and cite all the research you need on ResearchGate