So unless you are willing to commit that not only there is no reliable way to assign a prior, but also assigning a probability in this situation is invalid in itself
Indeed. If you have no way to assign a prior, probability is meaningless. And if you try, you end up with something as ridiculous as the Doomsday argument.
Indeed. If you have no way to assign a prior, probability is meaningless. And if you try, you end up with something as ridiculous as the Doomsday argument.
Well, in that case, our arguments actually have a lot in common. My position regarding anthropics is that perspectives are axiomatic in reasoning. So a valid argument/notion must be formulated from one single perspective. This postulate refutes the probability shift in fine-tuning. It also invalidates the notion of self-locating probabilities like in the case of the doomsday argument.