Re: The Super-Intelligence (SI) speaks: An imaginary dialogue

2008-09-02 Thread Colin Hales
Hi Folks,
I can't throw myself any further into this ... I have to get back in the 
fray here. However - a couple of quick-ones for Brent and Bruno:

COL
> the instant the 
> abstraction happens, from that moment on you know NOTHING about the 
> current state of the distal environment...all you have is IO 
> measurements. 
>   
BRENT
And that's all a human scientist has too - IO measurements by his senses.

COL
This is just plain empirically, factually wrong. The whole of 
neuroscience for 100 years confirms that perception is a central nervous 
system functiona: CRANIAL, CENTRAL. Not peripheral. The CNS qualia are 
observation. The peripheral nervous system has/bestows no experienced 
qualities whatever. It only feel like it does because of the CNS doing 
its thing. I don't want to debate this. I shouldn;t have to. Go and look 
it up. There's about a million books and papers on it. In terms of my 
discussion of a scientist:
a) CNS qualia are scientific observation
b) The events in the distal world outside the scientist are the 
scientific measurement.

In the scenario I painted, the scientist COMP_S has to be hooked up to 
IO (you could even put the COMP_S inside a human body). Results are 
identical. There is absolutely no point in simulating the distal natural 
world! You are there to do SCIENCE: You don't know what the distal 
natural world is, by definition! Therefore you can't possibly simulate 
it ...and... if you could you wouldn't want to do science on it... 
that's the nice point about this scenario. It cuts out the logical holes.

BRUNO:
Please don't get me wrong. I actually hold the universe to be literally 
a mathematics...not COMP _OF_ a mathematics. There is no computer. The 
universe is the computer. There's no _abstractions_ of it. There's 
actual reified symbols interacting with each other, not being forced to 
interact by something else. but that's a whole other story only 
indirectly related to the one I told.

In regards to being guided by what the HUMAN_S vs COMP_S scenario tells 
us  - as is usual in the most Popperian of science... what I get is 
merely guidance in my behaviour - my choices - as a designer. I don't 
get told by the analysis a 'truth' or what to do. I get told by the 
analysis what NOT to do  - or better - what choices  to refrain from 
making. The COMP_S is an _abstract_ symbol manipulator. When you 
abstract X, then all relations between X and everything else (through 
the parallelness with all the other entities in the universe) - are all 
gone.

Classical mathematical thinking is a single stream  - a single line of 
proof. Our abstractions are the axioms in such a style of proof. But 
that's NOT what any entity X (the intended abstracted entity) has. If 
there are 10^1234  entities in the universe then X has (10^ 1234 -1) 
relationships with everything that is not X. Our models throw all of 
them away. I cannot prove that these relationships play no part in 
scientific behaviour. Nor can you. So in my design I shall, in the 
popperian tradition, refrain from making any choice that eliminates 
those relationships. So: abstract COMP is OUT as an option.

You said:

"That we cannot build constructively a scientist is correct. But it is  
then very misleading to use the word "false". Also, it is not because  
we cannot built constructively a scientist that we can infer that we  
are unable to isolate one, or to copy one, (and then: without  
constructively proving that we have done so). We just cannot know who  
we are.
By using "false" here you change the usual meaning of the word, and it  
could lead to add misunderstandings in a field where there are already  
many misunderstandings."


OK we're getting to the nub of it. Firstly I disagree that "we cannot 
build constructively a scientist". I hold that we can... unless by "We" 
you mean "All those people who subscribe to COMP" .. in which case you 
are correct. I hold that we CAN. I am not interested in copies or 
'simulations' = pretending. My scenario demands authentic original 
science done from a point of view of incomplete knowledge of a system 
from the vantage point of being literally built inside the system being 
scientifically described.

RE: 'falsity', 'refutation' etc.
The BEER definition of

COMP = '...the theoretical claim that a system's behavior derives from 
its instantiation of appropriate representations and computational 
processes." Beer, R. D. (1995), 'A Dynamical-Systems Perspective on 
Agent Environment Interaction'. Artificial Intelligence 72(1-2):pp. 
173-215.

Such a definition does not preclude "scientific behaviour" as a "system 
behaviour". Therefore COMP predicted that a scientitist can be created 
by "instantiation of appropriate representations and computational 
processes" , which I take to mean, as most would , a Turing 
Machine/digital computing abstraction-based symbol manipulator.

*FACT 1:* COMP cannot deliver one very specific, highly specialised 
thing: an authentic sci

Re: The Super-Intelligence (SI) speaks: An imaginary dialogue

2008-09-02 Thread marc . geddes



On Sep 2, 6:27 pm, Colin Hales <[EMAIL PROTECTED]> wrote:
> Hello again Jesse,
> I am going to assume that by trashing computationalism that Marc Geddes
> has enough ammo to vitiate Eleizer's various predilections so... to
> that end...

To make it clear, I'm not trashing computaionalism. I maintain that
comp is true (See what Bruno said).

It's Bayesianism I'm trashing.  And yes, I now have enough
'intellectual ammo' to crush Yudkowsky.

Cheers
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Re: The Super-Intelligence (SI) speaks: An imaginary dialogue

2008-09-02 Thread Bruno Marchal


On 02 Sep 2008, at 03:56, Colin Hales wrote:

> Computationalism is FALSE in the sense of 'not useful', not false in  
> the sense of 'wrong'.


Remember that if we are machine then we cannot *know*  (correctly  
justify) which machine we are. We can do bets.
But comp entails many indirect propositions about the observable  
realm, so comp can be refuted, and is "scientific" in Popper sense.
Up to now, the observation of nature (quantum physics notably)  
confirms the comp hyp.
Also, to negate comp you have to put actual infinities and/or 3- 
indeterminacy in nature. Where?

> Computationalism is FALSE in the sense that it cannot be used to  
> construct a scientist.

That we cannot build constructively a scientist is correct. But it is  
then very misleading to use the word "false". Also, it is not because  
we cannot built constructively a scientist that we can infer that we  
are unable to isolate one, or to copy one, (and then: without  
constructively proving that we have done so). We just cannot know who  
we are.
By using "false" here you change the usual meaning of the word, and it  
could lead to add misunderstandings in a field where there are already  
many misunderstandings.

Bruno

http://iridia.ulb.ac.be/~marchal/




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Re: The Super-Intelligence (SI) speaks: An imaginary dialogue

2008-09-02 Thread Brent Meeker

Colin Hales wrote:
> Hello again Jesse,
> I am going to assume that by trashing computationalism that Marc Geddes 
> has enough ammo to vitiate Eleizer's various predilections so... to 
> that end...
> 
> Your various comments (see below) have a common thread of the form "I 
> see no reason why you can't ..X.". So let's focus on reasons why you 
> can't ...X.  These are numerous and visible in real - empirically 
> verifiable physics...let's look at it from a dynamics point of view. In 
> saying 'you can see no reason' would mean that if you chose a 
> computationalist abstraction level (you mentioned atoms) that you would 
> claim the resultant agent able to demonstrate scientific behaviour 
> indistinguishable from a human.
> 
> I would claim that to be categorically false and testably so. OK. 
> Firstly call the computationalist artificial scientist, COMP_S. Call the 
> human scientist HUMAN_S. Call computationalism COMP. This saves a lot of 
> writing! The test regime:
> 
> HUMAN_S constructs laws of nature tn using the human faculty for 
> observation (call it P) delivered by real atoms in the brain of HUMAN_S. 
> If COMP_S and HUMAN_S are to be indistinguishable then the state 
> dynamics (state vector space) of COMP_S must be as sophisticated, 
> accessible as HUMAN_S and ALSO /convergent on the same outcomes as those 
> of HUMAN_S/. Our test is that they both converge on a law of nature tn, 
> say. Note: tn is a abstracted statement of an underlying generalisation 
> in respect of the distal external natural world (such as tn = ta, a 
> model of an atom). Yes? That is what we do... the portability of laws of 
> nature tn proves that we have rendered such abstractions invariant to 
> the belief dynamics of any particular scientist.. Yes?
> 
> HUMAN_S constructs a model of atoms a 'law of nature' =  ta.  Using that 
> model ta we then implement a sophisticated computational version of  
> HUMAN_S at the level of the model: atoms. We assemble an atomic-level 
> model replica of HUMAN_S. We run the computation on a host COMP 
> substrate. This becomes our COMP_S. We expect the two to be identical to 
> the extent of delivering indistinguishable scientific behaviour. We 
> embody  COMP_S with IO as sophisticated as a human and wire it upIf  
> the computationalist position holds, by definition, the dynamics of 
> COMP_S must be (a) complex enough and (b) have access to sufficient 
> disambiguated information to construct tn indistinguishably from HUMAN_S.
> 
> If computationalism is true then given the same circumstance of original 
> knowledge paucity (which can be tested), A demand for a scientific 
> outcome should result in state-vector dynamics adaptation resulting in 
> the delivery of the same tn (also testable), which we demand shall be 
> radically novel If they are really equivalent this should happen. 
> This is the basic position (I don't want to write it out again!)
> 
> 
> I would claim the state trajectory of COMP_S to be fatally impoverished 
> by the model ta. (abstracted atoms). That is, the state-trajectory of 
> COMP_S would fail to consistently converge on a new law of nature tn and 
> would demonstrate instability (chaotic behaviour). Just like ungrounded 
> power supplly voltage drift about, a symbolically  ungrounded COMP_S 
> will epistemically drift about.
> 
> Indeed I would hold that would be the case no matter what the 
> abstraction level: sub-atomic, sub-sub atomic , sub sub sub atomic 
> .. etc ... the result would be identical. Remember: there's no such 
> 'thing' as atoms...these are an abstraction - of a particular level of 
> the organisational hierarchy of nature.  also note ... so-called' 
> ab-initio quantum mechanics of the entire HUMAN_S would also fail 
> because QM is likewise just an abstraction of reality, not reality. COMP 
> would claim that the laws of nature describing atoms behave identically 
> to atoms. The model ensemble of ta atoms should be capable of expressing 
> all the emergent properties of  an ensemble of real atoms. This already 
> makes COMP a self-referential question-begging outcome.  HUMAN_S is our 
> observer, made of real atoms. COMP assumes that P is delivered by 
> computing ta when there is no such 'thing' as atoms! Atoms are an 
> abstraction of a thing, not a thing. Furthermore, all the orighinal 
> atoms of HUMAN_S have been replaced with the atoms of the COMP_S substrate.
> 
> What is NOT in law of nature ta is the relationship between the 
> abstraction ta and all the other atoms in the distal world outside 
> COMP_S. (beyond the IO boundary). Assume you supplied all the data about 
> all the atoms in the environment of the original human HUMAN_S used to 
> construct and initialise COMP_S. You know all these relationships at the 
> moment you measured all the atoms in HUMAN_S to get you model 
> established. However, after initialisation, when you run the C