Abstract
The paper proposes a way to naturalise Charles S. Peirce’s conception of the scientific method, which he specified in terms of abduction, deduction and induction. The focus is on the central issue of the economy of research in abduction and self-correction by error reduction in induction. We show how Peirce’s logic of science receives support from modern breakthroughs in computational neuroscience, and more specifically from Karl Friston’s statements of active inference and the Free Energy Principle, namely the account of how organisms’ capacity to decrease the discrepancy between the expected value and actual outcomes entails the minimisation of errors in their hypotheses about the world. A scientific account of organisms’ capacity to choose policies and form expectations is aligned with Peirce’s theories of abduction and induction, and especially with the economy of research. The upshot is the recovery of Peirce’s theory of the logic of science in the context of active inquiry.
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Notes
See Beni & Pietarinen (2021a, b) for some initial studies along these directions, incorporating what Peirce takes to be characteristics of deductive reasoning, namely model-based and diagrammatic reasoning, as a central element of organism’s process of building representations of their generative models.
This is also in the (implicitly) Peircean spirit of Jaynes (1995/2003: xii) who writes: “[N]either the Bayesian nor the frequentist approach is universally applicable, so in the present more general work we take a broader view of things. Our theme is simply: Probability Theory as Extended Logic. The “new” perception amounts to the recognition that the mathematical rules of probability theory are not merely rules for calculating frequencies of “random variables”; they are also the unique consistent rules for conducting inference (i.e. plausible reasoning) of any kind”. Jaynes could almost have inserted the term “abduction” within the parentheses.
This technical meaning of expectations is different from its common meaning, which Peirce bundled with notions such as desires, wishes and intentions. The latter are not general otherwise than through connection with a concept. These notions do not give”ultimate intellectual interpretants” (R 318; EP 2: 430, 1907) and thus not the meaning of signs, as the meaning that they have has to be effected by reference to concepts. Expectations in futuro, in turn, appear in “mental forms” (CP 2.86) as intentions do, but do not concern conceptual meaning but the “mental effects of the signs that they interpret” (R 318; EP 2: 431). Such expectations are given in conditional forms (subjunctives), while singular expectations as such are merely non-conditional judgments.
These dimensions are sketched somewhat further in Beni & Pietarinen (2021a).
Among other places, this is evident in Rescher’s interpretation of Peirce’s take on science, according to which, “Science is autonomous. Corrections to science must come from science... The mistaken results of science can be improved or corrected only by further results of science. There can be no recourse at this point to tealeaf reading, numerology, the Delphic oracle or the like” (Rescher, 1978, p. 160).
Such favouritism may explain some of the nearly automatic attunement of the human mind to the cognitive biases of confirmation, optimism, and the like; a topic addressed in another paper (Bobrova and Pietarinen, 2020).
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We thank Karl J. Friston for his constructive comments on an earlier version of this paper.
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Beni, M., Pietarinen, AV. Aligning the free-energy principle with Peirce’s logic of science and economy of research. Euro Jnl Phil Sci 11, 94 (2021). https://doi.org/10.1007/s13194-021-00408-y
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DOI: https://doi.org/10.1007/s13194-021-00408-y