Abstract
John Hardwig has championed the thesis (NE) that evidence that an expert EXP has evidence for a proposition P, constituted by EXP's testimony that P, is not evidence for P itself, where evidence for P is generally characterized as anything that counts towards establishing the truth of P. In this paper, I first show that (NE) yields tensions within Hardwig's overall view of epistemic reliance on experts and makes it imply unpalatable consequences. Then, I use Shogenji-Roche's theorem of transitivity of incremental confirmation to show that (NE) is false if a natural Bayesian formalization of the above notion of evidence is implemented. I concede that Hardwig could resist my Bayesian objection if he interpreted (NE) as a more precise thesis that only applies to community-focused evidence. I argue, however, that this precisification, while diminishing the philosophical relevance of (NE), wouldn't settle tensions internal to Hardwig's views.
Original language | English |
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Pages (from-to) | 209-218 |
Number of pages | 10 |
Journal | Episteme |
Volume | 13 |
Issue number | 2 |
Early online date | 7 Sept 2015 |
DOIs | |
Publication status | Published - Jun 2016 |