On 10 Oct 2013, at 05:50, chris peck wrote:
Hi Liz
>>
Oh dear, I think I will go and lie down now.
(Or then again, I won't...)
Precisely. Being a true MWI believer you can be certain of both. :)
Then we can be certain that we are all the same person. We all comes
from the same duplicating amoeba.
And I can be certain to win all games based on randomness.
But the point is not on identity. It is only about predicting what I
will (immediately) see when opening a door, after having pushed on a
button.
It is possible to rephrase the protocol in a way such that the user
does not know he will be duplicated, and only evaluate the
probabilities from the frequencies obtained and described in the
personal diaries of the copies. In that case some iterations is useful.
With the definition of 1p and 3p, given entirely in term of
annihilation and reconstitution, of diaries, the 1p-indeterminacy is
3p-justifiable.
In the math part, they are justifiable purely in terms of self-
reference (Gödel, Löb, Solovay) logics. The indeterminacy is lived by
1p, but that very fact is completely justified in the 3p discourse. We
have to be careful not confusing the points of view involved.
Bruno
Date: Thu, 10 Oct 2013 16:35:56 +1300
Subject: Re: What gives philosophers a bad name?
From: lizj...@gmail.com
To: everything-list@googlegroups.com
I still think this is quibbling. I at least believe I know what
Bruno means when he asks H-man to assign a probability to "his"
chances of appearing in Moscow. Perhaps Bruno is being sloppy in
talking about probabilities, because the whole situation is
deterministic, but it does at least give a "post-facto
indeterminism" like a quantum measurement does, so it's valid to the
extent that we talk about probabilities at all (assuming the MWI).
(Which is to say, it isn't really valid at all, but I still think I
know what is intended!)
Oh dear, I think I will go and lie down now.
(Or then again, I won't...)
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