> On 7 Sep 2020, at 00:49, Bruce Kellett <bhkellet...@gmail.com> wrote:
> 
> On Mon, Sep 7, 2020 at 3:34 AM 'Brent Meeker' via Everything List 
> <everything-list@googlegroups.com <mailto:everything-list@googlegroups.com>> 
> wrote:
> 
> It's because Bruce takes the Born probability as the probability that some 
> sequence exists (i.e. 1) instead of the probability it is the observed 
> sequence, ( |a|^2 ).
> 
> 
> That is the source of the disagreement. There are two possible questions: 1) 
> In the N repeats of the binary outcome experiment, what is the probability 
> that the sequence containing all ones will occur?; and 2) what is the 
> probability in this scenario that I will experience the sequence of all ones?
> 
> If we are using the theory to calculate probabilities, the first question is 
> the relevant one,

?


> and the theory gives two different answers , so the theory is inconsistent.

No, the theory is inconsistent here, only if you negate the distinction between 
3p and 1p. 



> If our concern is only about ourselves, and not about what the theory says, 
> then the second question is the appropriate one. Then there is no 
> inconsistency, because we know that we will only see one sequence —

Good!



> which one we do see can only be determined post hoc, and that is not a 
> probabilistic matter. The 1p/3p confusion here is all yours, not mine. What 
> gives you the right to maintain that the Born rule is only about what you 
> will experience? And not about objective probabilities?

Define “objective probabilities”. It is clearly in a stronger sense than the 
one I have given and used  in this thread, and I am not sure what you are 
talking about. I am not sure your “objective probability” makes sense. I would 
say that the Boin rules, and their constant verification, is what makes those 
probabilities objective, because, like with Mechanism, no machine can know 
which fine-grained histories she is living, among an infinity (realised in 
arithmetic, notably).

Bruno



> 
> Bruce
> 
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