Thanks Bruno. 

On Tuesday, March 25, 2014 4:34:43 PM UTC-5, yanniru wrote:
>
>
>
>
> On Tue, Mar 25, 2014 at 4:48 PM, Quentin Anciaux 
> <[email protected]<javascript:>
> > wrote:
>
>>
>>
>>
>> 2014-03-25 21:37 GMT+01:00 Richard Ruquist <[email protected]<javascript:>
>> >:
>>
>>
>>>
>>>
>>> On Tue, Mar 25, 2014 at 11:17 AM, Bruno Marchal 
>>> <[email protected]<javascript:>
>>> > wrote:
>>>
>>>>
>>>> On 24 Mar 2014, at 20:18, Richard Ruquist wrote:
>>>>
>>>> Bruno,
>>>>
>>>> How does cloning differ from "asking the doctor".
>>>> Forgive me but it seems that you are being contradictory-
>>>> just to indicate that this is an important question.
>>>>
>>>>
>>>> No problem: I love all questions :)
>>>>
>>>> The non cloning theorem says that you cannot copy exactly a *quantum 
>>>> state*. Note that you can still teleport it quantum mechanically, but you 
>>>> have to detsroy "the original".
>>>>
>>>> But nobody pretends that your mind needs your exact quantum state. It 
>>>> needs only a substitution level, which is usually estimate to be at a 
>>>> quite 
>>>> higher level than the quantum state.
>>>>
>>>> You cannot clone this or that exemplary of "Alice in Wonderland", but 
>>>> it is easy to make a copy of its classical information content, which is 
>>>> way above the quantum level defining the "material" book. 
>>>>
>>>
>>> Bruno, My concern is at what level is consciousness. I suspect that if 
>>> it is below the substitution level, then consciousness will not be 
>>> transmitted 
>>>
>>
>> Consciousness is always *at* the substitution level by definition of what 
>> is a "substitution level"... the definition of the substitution level is 
>> the level at which your consciousness is invariant (you don't feel a 
>> change) if implemented on a "digital brain"/computer... so by definition 
>> your consciousness is preserved at the substitution level as low it can 
>> be... (and it exists if computationalism is true...).
>>
> "Consciousness is Invariant at the Substitution level"
> Sounds like a theorem. Can you link me to its proof?
>

It is trivially a theorem of COMP, since the existence of such a 
substitution level is the COMP axiom itself. If COMP is true, then the 
substitution level is unknowable (although it can be honed in upon 
scientifically).
 

> Richard 
>
>>  
>> Quentin
>>  
>>
>>>  
>>>> All the same with this present post. Once send it will be multiplied, 
>>>> without any information loss, to all participant to this forum.
>>>>
>>>  
>>> Right, except that I suspect that the post is not conscious.
>>>
>>>  
>>>> Now, I should add that the consequence of comp remains correct, even if 
>>>> our substitution level is sub quantum, and asks for the total quantum 
>>>> state. WHY? because the consequences depends only on step 7, which does 
>>>> not 
>>>> use any duplication of any states, but only their multi-preparation, which 
>>>> is done automatically by the arithmetical reality, or the Universal 
>>>> Dovetailer. Only the pedagogical step 1-6 are no more available except ... 
>>>> as pedagogical steps. But a majority of people believe that the brain, 
>>>> although plausibly a quantum object, works at a much higher level, so I 
>>>> don't insist so much on this, given that we get a non-cloning result 
>>>> directly by comp.
>>>>
>>>> OK?
>>>>
>>>
>>> Right, and I suspect that consciousness could be duplicated 
>>> if the consciousness level is at or above the substitution level.
>>>  Seems we have several levels: 
>>> the particle and quantum levels, and the consciousness and the 
>>> substitution level, The conscious level is fixed by nature. 
>>> The substitution level seems to be fixed by mathematics.
>>> They both may be the same: nature and math, that is.
>>> Richard
>>>
>>>>  
>>>> Bruno
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Richard
>>>>
>>>>
>>>> On Mon, Mar 24, 2014 at 2:20 PM, Bruno Marchal 
>>>> <[email protected]<javascript:>
>>>> > wrote:
>>>>
>>>>>
>>>>> On 24 Mar 2014, at 00:43, Joseph Knight wrote:
>>>>>
>>>>> Bruno, I've seen you say before that COMP (in addition to the 
>>>>> first-person indeterminacy) also predicts the no-cloning theorem. Could 
>>>>> you 
>>>>> explain how?
>>>>>
>>>>>
>>>>> In a purely qualitative way, that should be easy, if you succeed in 
>>>>> staying naive-cold with the UDA up to step 7. Imagine that I decide to 
>>>>> copy 
>>>>> a piece of matter.
>>>>>
>>>>> Unlike information, where things are crisp at some point, it is 
>>>>> already not clear what is the relevant level, so an exact copy should be 
>>>>> defined by something like a non distinguishability with respect to some 
>>>>> set 
>>>>> of instruments.
>>>>> Anyway, at some point, in your zooming toward finer and finer 
>>>>> description of the piece of matter, you arrive at your own substitution 
>>>>> level. At that level, the matter is no more made of subpart, but is 
>>>>> undetermined, as you comp state is no more dependent of such details, and 
>>>>> *you* diffuse on all the possible "subcomputations", where, by the FPI, 
>>>>> all 
>>>>> universal machines are somehow in competition (by the invariance of the 
>>>>> 1p 
>>>>> for the "length of the proof of the sigma_1 proposition, or 
>>>>> computations). 
>>>>> How could you clone that? We cannot clone an object, because an object is 
>>>>> not a real thing, but an information pattern, which becomes necessarily 
>>>>> fuzzy when we look at it below the substitution level. What we can see 
>>>>> there is only an average of the many possible computations below our 
>>>>> (first 
>>>>> person plural) substitution level.
>>>>>
>>>>> OK?
>>>>>
>>>>> Bruno
>>>>>
>>>>>
>>>>>
>>>>>
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>>>>>  http://iridia.ulb.ac.be/~marchal/
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