Lugano Philosophy Colloquia. Franz Berto

October 4, 2023
Institute of Philosophy (ISFI), Università della Svizzera italiana (USI)

Room TBA (USI West Campus)
Via Giuseppe Buffi 13
Lugano 6900
Switzerland

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This event is available both online and in-person

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University of St. Andrews

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The Lugano Philosophy Colloquia are back this fall 2023!

Abstract: I investigate the workings and epistemic credentials of counterfactual imagination: the activity of supposing that P in order to investigate what would be the case if P was the case. The mainstream way of drawing the distinction between imagination in the indicative and in the subjunctive or counterfactual mood has it that one can only suppose that P in the former way when one gives nonzero chance to P. I argue that that's wrong. Instead, both kinds of suppositional thinking work by simulated belief revision; but while the former is governed by Bayesian conditionalization, the latter is governed by Lewisian imaging. So understood, counterfactual imagination can be rationally justified by considerations concerning belief accuracy: a specific kind of imaging, namely Laplacian generalized imaging, minimizes expected inaccuracy as measured by the Brier score. So if one endorses the claims that (expected) accuracy is the fundamental virtue of epistemic attitudes, and that accuracy is adequately measured by the Brier score, imagining via imaging is virtuous indeed!

This series of events are held on campus for philosophy students and on Zoom for everyone. We may also stream some of them on the USI Master in Philosophy Facebook page. To participate in these events, please write to [email protected] 

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Università della Svizzera Italiana

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