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From: Marchal <marchal.domain.name.hidden>

Date: Thu Sep 6 01:52:17 2001

Charles Goodwin wrote

*>> From: Jesse Mazer [mailto:lasermazer.domain.name.hidden]
*

*>>
*

*>> Well, I hope you'd agree that which observer-moment I am
*

*>> right now is not a
*

*>> "matter of definition," but a matter of fact. My opinion is
*

*>> that the global
*

*>> measure on all observer-moments is not telling us something
*

*>> like the "number
*

*>> of physical instantiations" of each one, but rather the
*

*>> probability of
*

*>> *being* one particular observer-moment vs. some other one. I would be
*

*>> interested to hear what you think the measure means, though, since my
*

*>> version seems to require first-person facts which are separate from
*

*>> third-person facts (i.e., which observer-moment *I* am).
*

*>
*

*>I don't see how you can talk about the "probability of being a particular
*

*>observer moment". The probability is 1 at that moment! We
*

*>don't get dropped into observer moments from some metaphysical realm (like
*

*>Fred Hoyle's flashlight-and-pigeonholes analogy in
*

*>"October the 1st is too late") - we ARE those observer moments. It's a bit
*

*>like the probability of me being born as me. The
*

*>probability was 1, because otherwise I wouldn't be me! Similarly for this
*

*>particular observer moment.
*

So the question is "knowing that I am living (1-person view) this

observer-moment, what can I expect (immediately)?

The answer will be given by a measure on the 1- observer-moment

described in some 3-person view.

My feeling is that Charles and Jesse agree here.

Unlike Jacques Mallah, but like Charles, I cannot give meaning to an

absolute a priori probability on "observer-moment", but I can give,

like Jesse conditional or relative probabilities. This is because

the constraint of theoretical computer science are enough for

isolating natural nearness relations bearing on computational states

and histories.

I agree with Jesse that my actual observer-moment is not a matter

of definition. Nor will I appreciate, if I ask my doctor if there

is a high chance of surviving a delicate operation, that he answers

me that it is a matter of definition.

Bruno

Received on Thu Sep 06 2001 - 01:52:17 PDT

Date: Thu Sep 6 01:52:17 2001

Charles Goodwin wrote

So the question is "knowing that I am living (1-person view) this

observer-moment, what can I expect (immediately)?

The answer will be given by a measure on the 1- observer-moment

described in some 3-person view.

My feeling is that Charles and Jesse agree here.

Unlike Jacques Mallah, but like Charles, I cannot give meaning to an

absolute a priori probability on "observer-moment", but I can give,

like Jesse conditional or relative probabilities. This is because

the constraint of theoretical computer science are enough for

isolating natural nearness relations bearing on computational states

and histories.

I agree with Jesse that my actual observer-moment is not a matter

of definition. Nor will I appreciate, if I ask my doctor if there

is a high chance of surviving a delicate operation, that he answers

me that it is a matter of definition.

Bruno

Received on Thu Sep 06 2001 - 01:52:17 PDT

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