On 03 Mar 2009, at 13:40, Stathis Papaioannou wrote:

> 2009/3/3 Bruno Marchal <marc...@ulb.ac.be>:
>> I think that comp practitioners will divide, in the long run,  along
>> three classes:
>> A:  majority. Accept teleportation but disallow overlap of
>> "individuals": annihilation first, reconstitution after. No right to
>> self-infliction. In case of accidental or exceptional self-
>> multiplication, consent is asked at any time.
>> B: a stable minority (in the long run). Accept teleportation but do
>> allow overlap of individuals. Some will fight for the right of self-
>> infliction including the consent made before the duplication, but  
>> with
>> precise protocol. You know the problem of the masochist: I say no,
>> continue, I say "no no", stop!
>> C:  the bandits. They violates protocols and don't ask for consents.
>> They should normally be wanted, I mean researched by all the polices
>> of the universe, or already be in jail or in asylum.
> I think B might work, since it is more or less like the present
> situation, where our decisions are based on a rough risk-benefit
> analysis, i.e. we decide on a course of action if as a result
> gain*Pr(gain) >= loss*Pr(loss). So we decide to smoke, for example, if
> we judge the pleasure of smoking (or the suffering caused by trying to
> give it up) to outweigh the suffering that may result from
> smoking-related illnesses. However, there are also differences if the
> copies are allowed to overlap. If I make a decision that has an
> adverse effect on my future self I may regret the decision, but it's
> not possible to ask my past self to reverse it. On the other hand, if
> I agree for one of my copies to torture the other it is always
> possible for the victim to ask the torturer to release him. Also, it
> is possible for the torturer to come to believe that he is never at
> risk himself after repeated duplications: I've done this many times
> and it's always the *other* guy who suffers, not me, so there is no
> reason for me not to repeat the process. This would be so even if the
> agreement was for 100 copies to be made and 99 of them enslaved: the
> one who does the enslaving may come to believe that he is never at
> risk, and continue creating copies 100 at a time.

You can then imagine the surprise of the copy or copies:  "- I did  
this often and thought there are no risk, but here I am enslaved, and  
I will suffer and die".

That is why the B people made a law, for helping those who  
misunderstand the probability. If you decide (before duplication) to  
kill the copy, the choice of victim/torturer is still decided through  
a throw of a fair coin. This makes the decision unbiased by fake  
protocols based on a bad understanding of what the comp probabilities  

Iterating the procedure, with the throwing of the coin, could make you  
believe you are incredibly lucky, but the computationalist should know  
better: this is just the "usual" comp-suicide self-selection (assuming  
of course we can really kill the copies, which is in itself not an  
obvious proposition).



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