Pragmatic Scientific Realism (PSR) urges us to take up the realist aim or the goal of truth although we have good reason to think that the goal can neither be attained nor approximated. While Newton-Smith thinks that pursuing what we know we cannot achieve is clearly irrational, Rescher disagrees and contends that pursuing an unreachable goal can be rational on pragmatic grounds—if in pursuing the unreachable goal one can get indirect benefits. I have blocked this attempt at providing a pragmatic (...) justification for the realist aim of PSR on precisely the same pragmatic grounds—since there is a competing alternative to PSR, and the alternative can provide whatever indirect benefits PSR can offer while being less risky than it is, prudential reasoning favours the alternative to PSR. This undermines the pragmatic case for the realist aim of science since the instrumentalist alternative does not aim at the truth. (shrink)

Pragmatic theological realism (PTR) urges us to take up the realist aim of theology or the goal of truth although we have good reason to think that the goal can neither be attained nor approximated. Rescher contends that pursuing an unreachable goal can be rational on pragmatic grounds so long as pursuing the unreachable goal yields indirect benefits. I have blocked this attempt at providing a pragmatic justification for the realist aim of PTR on precisely the same pragmatic grounds: since (...) there is a competing alternative to PTR and the alternative can provide whatever indirect benefits PTR can offer while being less risky than it is, prudential reasoning favours the alternative to PTR. This undermines the pragmatic case for the realist aim of theology since the instrumentalist alternative does not aim at the truth. (shrink)

According to Hitchcock and Sober’s argument from overfitting for weak predictivism, the fact that a theory accurately predicts a portion of its data is evidence that it has been formulated by balancing simplicity and goodness-of-fit rather than overfitting data. The core argument consists of two likelihood inequalities. In this paper I show that there is a surprising accommodation-friendly implication in their argument, and contend that it is beset by a substantial difficulty, namely, there is no good reason to think that (...) their second likelihood inequality is true. (shrink)

Lipton contends that the no-miracle argument is illegitimate, because it fails to adduce new evidence beyond that cited by scientists for their theories. The debate on this issue between Lipton and Psillos has focussed on whether there is a construal of the no-miracle argument in relation to first-order scientific inferences that can yield new evidence. I move away from this focus without taking sides, and argue that the no-miracle argument, on its two popular interpretations, is as legitimate, cogent, and useful (...) an inductive argument for scientific realism as first-order scientific inferences to the best explanation even if it does not add to scientific evidence. (shrink)