I enjoyed The Accidental Universe, much of which dealt with the anthropic principle -- though not in nearly as much depth. As an aside, can any of you tell me why I've heard of Scott Aaronson, other than perhaps having read his website before? I can't remember. His Wikipedia page didn't help. Anyway, badge for pure fascination. What a great read this is. I think if I badge it the probability that more hubski users will click rises. -- I enjoyed going over the doomsday argument in my mind. However, I think it is significant that the probability of snake eyes at any given iteration of dice rolls is quite small -- less than 3 percent. As one of the commenters points out (and as Scott acknowledges), assuming infinite or finite people/rolls/population/etc changes things. Hmm. More thinking to come. I am inclined toward SIA -- existence as evidence.