Updating as Communication

Abstract
Traditional procedures for rational updating fail when it comes to self-locating opinions, such as your credences about where you are and what time it is. This paper develops an updating procedure for rational agents with self-locating beliefs. In short, I argue that rational updating can be factored into two steps. The first step uses information you recall from your previous self to form a hypothetical credence distribution, and the second step changes this hypothetical distribution to reflect information you have genuinely learned as time has passed. While the second step resembles traditional procedures of updating by conditionalization, the first is best understood by analogy to traditional models of how agents transmit self-locating opinions through ordinary interpersonal communication.
Keywords Sleeping Beauty  updating  self-locating  Frege's Puzzle
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Citations of this work BETA
Clas Weber (2013). Centered Communication. Philosophical Studies 166 (1):205-223.
Dilip Ninan (2013). Self‐Location and Other‐Location. Philosophy and Phenomenological Research 87 (1):301-331.
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