Phil 125: Final Assignment (Exam Version)
Fall, 2020

Questions

1.
 Popper, LSD, ch. 1 and 2: It is clear that, in these chapters, Popper introduces three different questions: (1) the “problem of induction” (how can we come to believe universal statements on the basis of finite empirical data); (2) the “demarcation problem” (how can we distinguish science, properly speaking — empirical science — from others things that look like science but aren’t, such as pseudoscience, metaphysics, mathematics, etc.); and, finally, (3) certain questions about the relationship between science and the methodology of science, most importantly: is the methodology of science itself science? But it is not clear which of those three questions is most important to him. Choose one of the following three statements and explain how it could be right (that is, give the details of what Popper would be thinking as he connects one question to another in that way). (A) Popper’s main point is to show that (1), the “problem of induction,” doesn’t have a positive solution, and to explain how we can nevertheless learn something about universal laws. He discusses (2), the “demarcation problem,” because of that main point. (B) Popper’s main point is the role of falsifiability in answering the “demarcation problem,” (2). He discusses other methodological issues, (3), and the “problem of induction,” (1), because of that main point. (C) Popper’s main point is (3), the relationship between science and the methodology of science. He discusses the “problem of induction,” (1), and falsifiability as a response to the “demarcation problem,” (2), because of that main point.
2.
 Popper, LSD, ch. 3: Explain why Popper’s conception of a “theoretical system” (§16) might lead one to regard the axioms as “conventions.” Your explanation should involve (at least) the following: theories (what is a “theory”?); axioms; definitions; “strict” universals. Explain, further, why Popper wants to avoid that interpretation. How would someone who treats the axioms that way, as conventions, respond to new data coming in? Why would they never have to give up their theory?
3.
 Popper, LSD, ch. 4: Explain one of the following points about Popper’s view (all of which are correct): (a) No falsifiable theory forbids only a single basic statement. (b) Forbidding (any number of) basic statements is not enough to make a theory falsifiable. (c) A theory cannot, in general, be falsified by a single accepted basic statement. (Note that (a), (b), and (c) are three different things. You should choose only one and try to explain it.)
4.
 Popper, LSD, ch. 5: What is “Fries’s Trilemma”? (Do not quote from the text to answer this; you must explain in your own words. What happens when we try to give a reason for believing every true statement?) How is Popper’s view on “basic statements” supposed to resolve this trilemma? How is this connected with his reason for rejecting all versions of “protocol sentences,” including even the version Carnap (in “On Protocol Sentences”) claims to have taken from Popper? That is: why, according to Popper, do all versions of “protocol sentences,” as opposed to Popper’s “basic statements,” leave the trilemma unresolved?
5.
 Popper, LSD, ch. 10: Explain why Popper’s view, as opposed to the view he describes as “inductivist,” makes it hard to understand why we rely on corroborated theories. That is: (1) Why would it be easy to see why we should rely on well-corroborated (justified) theories? (2) Why is it hard to understand why we should rely on well-corroborated (severely tested) theories, according to Popper? And, (3) how would Popper respond to this objection? (So note, no part of this question is about saying why Popper rejects inductivism. Just take that for granted and explain why his rejection of inductivism creates this specific problem for him, and how he thinks he can deal with it.)
6.
 Neurath, Putnam, Lakatos: Choose one of the following examples and explain why (according to one or more of the three authors) it causes a problem for Popper: Newton’s derivation of Kepler’s laws; the discovery of Neptune; the orbit of Mercury. Why, according to the author(s) who raise the objection, does the example you have chosen seem to show that scientists theories are not falsifiable in the way he requires? How might Popper respond? What would he say his critic(s) have missed either about the example or about what his requirement of falsifiability actually entails?
7.
 Kuhn, SSR, ch. 1–5: On p. 34, Kuhn claims that three activities (“determination of significant fact, matching of facts with theory, and articulation of theory”) make up all the experimental and theoretical work of normal science. Choose one of these three activities and explain what it is like, using examples where helpful. Then explain why, according to Kuhn, someone could not, in general, be motivated to engage in this activity by a desire to test theories, to uncover unexpected novelties, or to be useful. Why does engaging in the activity imply that you do not think current theories are false, do not think anything unexpected will turn up in the results? And why, in general, is it clear that, in choosing to engage in this activity, we have not chosen to answer a question because we expect the answer to be useful (to society)? Explain, on the other hand, why, according to Kuhn, someone could be motivated to engage in this activity by a desire to solve “puzzles.”
8.
 Kuhn, SSR, ch. 6–8: Discuss either the discovery of oxygen or the discovery of X-rays, focusing on the role of “anomalies” and the ways in which the nature and role of such anomalies, according to Kuhn, are both like and unlike the nature and role of falsifying instances/hypotheses as described by Popper. Explain further how the process in question is supposed to resemble the kind of “theoretical” crisis described in ch. 7.
9.
 Kuhn, SSR, ch. 9–10: How might a “positivist” (as described by Kuhn, beginning around p. 98) tell the story of Galileo’s discoveries about the behavior of pendulums? How would such a positivist argue that these discoveries were not incompatible with older theories? (See especially what Kuhn finally notes on p. 124: that Aristotelians didn’t discuss swinging stones at all.) Why is the positivist’s description wrong, according to Kuhn? Give at least two reasons. (Discuss what goes wrong in this particular case, but with reference to some of the supposed general facts about the “nature and necessity” of scientific revolutions — to quote the title of ch. 9 — which guarantee that all such stories will be wrong.)
10.
 Kuhn, SSR, ch. 11–13: On p. 149, Kuhn says: “The laymen who scoffed at Einstein’s general theory of relativity because space could not be ‘curved’ — it was not that sort of thing — were not simply wrong or mistaken.” This might be taken to mean that laymen are better placed to criticize new developments in science than we usually tend to think. Is that the moral Kuhn would want us to draw? Explain why or why not.