Abstract

Cian Dorr considered the case of a fair coin that is tossed every day throughout an infinite past and an infinite future (an ``Eternal Coin''). Against intuition, he argued that, conditional on the Coin having landed {\it heads} throughout the past, one should believe, with full probability, that it will also land {\it heads} today. In this paper, we critique Dorr's arguments, as well as part of a reply by Myrvold.