Reflection and disagreement

Noûs 41 (3):478–502 (2007)
How should you take into account the opinions of an advisor? When you completely defer to the advisor's judgment, then you should treat the advisor as a guru. Roughly, that means you should believe what you expect she would believe, if supplied with your extra evidence. When the advisor is your own future self, the resulting principle amounts to a version of the Reflection Principle---a version amended to handle cases of information loss. When you count an advisor as an epistemic peer, you should give her conclusions the same weight as your own. Denying that view---call it the ``equal weight view''---leads to absurdity: the absurdity that you could reasonably come to believe yourself to be an epistemic superior to an advisor simply by noting cases of disagreement with her, and taking it that she made most of the mistakes. Accepting the view seems to lead to another absurdity: that one should suspend judgment about everything that one's smart and well-informed friends disagree on, which means suspending judgment about almost everything interesting. But despite appearances, the equal weight view does not have this absurd consequence. Furthermore, the view can be generalized to handle cases involving not just epistemic peers, but also epistemic superiors and inferiors.
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DOI 10.1111/j.1468-0068.2007.00656.x
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References found in this work BETA
Stewart Cohen (2002). Basic Knowledge and the Problem of Easy Knowledge. Philosophy and Phenomenological Research 65 (2):309-329.

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Citations of this work BETA
David Christensen (2010). Higher-Order Evidence. Philosophy and Phenomenological Research 81 (1):185-215.
Bryan Frances (2010). The Reflective Epistemic Renegade. Philosophy and Phenomenological Research 81 (2):419 - 463.

View all 92 citations / Add more citations

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