A real world example of Presumptuous philosopher is is the question of panspermia. If it is real, we have orders of magnitude more habitable planets in our galaxy, thus more observers. Therefore, accepting SIA means accepting panspermia.
If we take observers in my epistemic situation as a reference class, we still get a variant of DA and a bad one. My epistemic class are (roughly) people who think about anthropics. This people are distributed in time. First of them appear around 1970s (Carter) and much more of them appeared in LW time. If I am randomly selected from this group, I am in the middle of its existence, which means that antropics-interested people will almost disappear in the next few decades.
A real world example of Presumptuous philosopher is is the question of panspermia. If it is real, we have orders of magnitude more habitable planets in our galaxy, thus more observers. Therefore, accepting SIA means accepting panspermia.
If we take observers in my epistemic situation as a reference class, we still get a variant of DA and a bad one. My epistemic class are (roughly) people who think about anthropics. This people are distributed in time. First of them appear around 1970s (Carter) and much more of them appeared in LW time. If I am randomly selected from this group, I am in the middle of its existence, which means that antropics-interested people will almost disappear in the next few decades.