There was some confusion in the comments to my original post “Newcomb, Bostrom, Calvin: Credence and the strange path to a finite afterlife” (http://lesswrong.com/r/discussion/lw/mxu/newcomb_bostrom_calvin_credence_and_the_strange/) which makes me think I was not nearly clear enough in the original. I am sincerely sorry for this. I am also really appreciative to everyone who left such interesting comments despite this. I have added some notes in an update to clarify my argument. I also responded to comments in a way that I hope will further illustrate some of the trickier bits. This should make it more interesting to read and perhaps inspires some more discussion. I was vaguely tempted to repost the original with the update, but thought that was probably bad etiquette. My hope is that anyone who was turned off by it being unclear initially might take a second look at it and the discussion if it seems like an interesting topic to them. Thank you.