Disputed term/author/ism | Author Vs Author |
Entry |
Reference |
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Best Explanation | Fraassen Vs Best Explanation | Field I 15 Principle of the Best Explanation/Field: Suppose we have a) certain beliefs about the "phenomena" that we do not want to give up b) this class of phenomena is large and complex c) we have a pretty good (simple) explanation that is not ad hoc and from which the consequences of the phenomena follow d) one of the assumptions in the explanation is assertion S and we are sure that no explanation is possible without S. Best Explanation: then we have a strong reason to believe S. False: "The phenomena are as they would be if explanation E was correct": As If/Field: As-if assertions that are piggyback passengers on true explanations may not be constructed as explanations themselves (at least not ad hoc). Then the principle is not empty: it excludes the possibility that we accept a large and complex set of phenomena as a brute fact. (van FraassenVsBest Explanation: 1980) Best Explanation/BE/Field: the best explanation often leads us to believe something that we could also test independently by observation, but also to beliefs about unobservable things, or unobservable beliefs about observable things. Observation: should not make a difference here! In any case, our beliefs go beyond what is observed. I 16 Important argument: if no test was done, it should make no difference in the status of the evidence between cases where an observation is possible and those where no observation is possible! A stronger principle of the best explanation could be limited to observable instances of belief. FieldVs: but that would cripple our beliefs about observable things and would be entirely ad hoc. Unobserved things: a principle could be formulated that allowed the inference on observed things - that have been unobserved so far! - while we do not believe the explanation as such. FieldVs: that would be even more ad hoc! I 25 VsBenacerraf: bases himself on an outdated causal theory of knowledge. I 90 Theory/Properties/Fraassen: theories have three types of properties: 1) purely internal, logical: axiomatization, consistency, various kinds of completeness. Problem: It was not possible to accommodate simplicity here. Some authors have suggested that simple theories are more likely to be true. FraassenVsSimplicity: it is absurd to suppose that the world is more likely to be simple than that it was complicated. But that is metaphysics. 2) Semantic Properties: and relations: concern the relation of theory to the world. Or to the facts in the world about which the theory is. Main Properties: truth and empirical adequacy. 3) pragmatic: are there any that are philosophically relevant? Of course, the language of science is context-dependent, but is that pragmatic? I 91 Context-Dependent/Context-Independent/Theory/Science/Fraassen: theories can also be formulated in a context-independent language, what Quine calls Def "External Sentence"/Quine. Therefore it seems as though we do not need pragmatics to interpret science. Vs: this may be applicable to theories, but not to other parts of scientific activity: Context-Dependent/Fraassen: are a) Evaluations of theories, in particular, the term "explained" (explanation) is radically context-dependent. b) the language of the utilization (use) of theories to explain phenomena is radically context-dependent. Difference: a) asserting that Newton’s theory explains the tides ((s) mention). b) explaining the tides with Newton’s theory (use). Here we do not use the word "explains". Pragmatic: is also the immersion in a theoretical world view, in science. Basic components: speaker, listener, syntactic unit (sentence or set of sentences), circumstances. Important argument: In this case, there may be a tacit understanding to let yourself be guided when making inferences by something that goes beyond mere logic. I 92 Stalnaker/Terminology: he calls this tacit understanding a "pragmatic presupposition". (FraassenVsExplanation as a Superior Goal). I 197 Reality/Correspondence/Current/Real/Modal/Fraassen: Do comply the substructures of phase spaces or result sequences in probability spaces with something that happens in a real, but not actual, situation? ((s) distinction reality/actuality?) Fraassen: it may be unfair to formulate it like that. Some philosophical positions still affirm it. Modality/Metaphysics/Fraassen: pro modality (modal interpretation of frequency), but that does not set me down on a metaphysical position. FraassenVsMetaphysics. I 23 Explanatory Power/Criterion/Theory/Fraassen: how good a choice is explanatory power as a criterion for selecting a theory? In any case, it is a criterion at all. Fraassen: Thesis: the unlimited demand for explanation leads to the inevitable demand for hidden variables. (VsReichenbach/VsSmart/VsSalmon/VsSellars). Science/Explanation/Sellars/Smart/Salmon/Reichenbach: Thesis: it is incomplete as long as any regularity remains unexplained (FraassenVs). |
Fr I B. van Fraassen The Scientific Image Oxford 1980 Field I H. Field Realism, Mathematics and Modality Oxford New York 1989 Field II H. Field Truth and the Absence of Fact Oxford New York 2001 Field III H. Field Science without numbers Princeton New Jersey 1980 Field IV Hartry Field "Realism and Relativism", The Journal of Philosophy, 76 (1982), pp. 553-67 In Theories of Truth, Paul Horwich Aldershot 1994 |