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If a computer was powerful enough would it generate consciousness?

axon said:
Interesting point. If you have a perfect simulation, is this the same as replication? Although in the case of brain/consciousness I think you'd need to simulate not just the wires in the head but the inputs (senses) and outputs (arm waving).
That question can be definitively answered (though the point is taking a fascinatingly long time to sink in). The answer is that one can simulate something, without thereby making the thing simulated. That's even recognised in law as a rational distinction to make. In a way it's just English :)

To be dramatic, scientists regularly simulate atomic reactors within computers; but there's no way of getting power out of the simulation to drive the computer. And meteorologists regularly simulate weather systems. But there's no way of getting drinking water out of the computer. One has to allow that one may simulate a brain on a computer without generating consciousness.

Knotted nailed the questions, imho: Is the human brain a Universal Turing machine? ... What's consciousness anyway?

Great thread. This is an area in which (natural) philosophy needs to do the preliminary thinking to enable an appropriate scientific methodology.


* the ones you know about.
 
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Jonti said:
.........One has to allow that one may simulate a brain on a computer without generating consciousness.
..........

And maybe a simulated brain WILL generate consciousness. :eek: :)

That'd be :cool: & :oops:
 
Jonti said:
That question can be definitively answered (though the point is taking a fascinatingly long time to sink in). The answer is that one can simulate something, without thereby making the thing simulated. That's even recognised in law as a rational distinction to make. In a way it's just English :)

To be dramatic, scientists regularly simulate atomic reactors within computers; but there's no way of getting power out of the simulation to drive the computer. And meteorologists regularly simulate weather systems. But there's no way of getting drinking water out of the computer. One has to allow that one may simulate a brain on a computer without generating consciousness.

Knotted nailed the questions, imho: Is the human brain a Universal Turing machine? ... What's consciousness anyway?

Great thread. This is an area in which (natural) philosophy needs to do the preliminary thinking to enable an appropriate scientific methodology.


* the ones you know about.

Why did you edit out your agreement with me - was it really too horrible to contemplate? :p
 
That's the "strong AI" position: that we presently have all the scientific principles we need to account for the fact of consciousness.

But they are completely unable to explain how the machine I am writing this on could, according to their theory of consciousness, be made aware even in the slightest.

I demand an explanation! :mad:
 
To parapharase torres from earlier: simulating the physical elements* of a model is just that. If there's something that comes from outside that model then you've trouble.
 
Jonti said:
That's the "strong AI" position: that we presently have all the scientific principles we need to account for the fact of consciousness.

But they are completely unable to explain how the machine I am writing this on could, according to their theory of consciousness, be made aware even in the slightest.

I demand an explanation! :mad:
Well awareness is simply a response to stimulus.
 
No, awareness is not simply a response to stimulus.

A response, an action of some sort, is not the same kind of thing as awareness.
 
torres said:
Is it?

Can you not be aware of your capacity to be stimulated without being stumulated?
I've drank too much red wine to answer this properly but you have to have a memory and a context for it to mean anything.
 
Jonti said:
No, awareness is not simply a response to stimulus.

A response, an action of some sort, is not the same kind of thing as awareness.
Yes it is, you have to have a stimulus before you have an action. It doesn't come from nothing. :confused:
 
sleaterkinney said:
I've drank too much red wine to answer this properly but you have to have a memory and a context for it to mean anything.

Thereby undermining your own point. You've given the answer as to why it's not. Why awareness is not simply a response to stimulus.
 
That one has to have a stimulus before an action does not imply that an action is the same kind of thing as awareness.
 
sleaterkinney said:
Yes it is, you have to have a stimulus before you have an action. It doesn't come from nothing. :confused:
Maybe true but it doesn't mean that awareness is simply a response to stimulus does it? What's the connection?
 
This is like alchemists of the 17th century arguing about what it's like to walk on the moon. We don't have the data and we don't have the conecptual framework to have a useful discussion. 50 + years down the line when we know much much more about how the brain works, then we might be able to decide whether modelling or simulating it has any use. But for now, we may as well be telling fairy tales.
 
Crispy said:
This is like alchemists of the 17th century arguing about what it's like to walk on the moon. We don't have the data and we don't have the conecptual framework to have a useful discussion. 50 + years down the line when we know much much more about how the brain works, then we might be able to decide whether modelling or simulating it has any use. But for now, we may as well be telling fairy tales.

Yeah but it's a moot point and I love to play devil's advocate :D

Is it just me or is it great to enter into a debate and take the side of the obvious underdog, knowing that the best you can hope to achieve is to agree to disagree?

In the words of the immortal Tommy Cooper

















meh!
:D
 
Knotted said:
Maybe its the subconscious where the real puzzle lies?

Obviously it is where the real obstacle in understanding the the so called "consciousness" is situated.

Is consciousness a function of the subconscious?

I would think it is the reverse in the sense that the subsconsious always controlls the conscious, inevitably.

salaam.
 
torres said:
Thereby undermining your own point. You've given the answer as to why it's not. Why awareness is not simply a response to stimulus.
No, it doesn't contradict it at all, it is still a response, but that response is conditioned by what's happened in the past.
 
sleaterkinney said:
Well awareness is simply a response to stimulus.
Jonti said:
No, awareness is not simply a response to stimulus. A response, an action of some sort, is not the same kind of thing as awareness.
sleaterkinney said:
Yes it is, you have to have a stimulus before you have an action. It doesn't come from nothing. :confused:
Jonti said:
That ... does not imply that an action is the same kind of thing as awareness.
sleaterkinney said:
I've never said that it is, have I?.
Readers can decide for themselves.
 
Crispy said:
This is like alchemists of the 17th century arguing about what it's like to walk on the moon. We don't have the data and we don't have the conecptual framework to have a useful discussion. 50 + years down the line when we know much much more about how the brain works, then we might be able to decide whether modelling or simulating it has any use. But for now, we may as well be telling fairy tales.
I think that's not a bad analogy, but I'd say it's more like early 18th Century engineers discussing the 'abilty to do work' idea, which eventually was refined into the precise scientific notion of 'energy'.

Everyone seems to agree that consciousness is something to do with information and meaning; but we don't really have a clear idea of what information really is, what the idea really means.
 
So it gets back to the old "what is consciousness" and "can we create it" questions. These are tricky ones. I can see two angles here,

First, how about we say that ants aren't conscious (in anyway approaching what human consciousness is). Then ask can we replicate an ant's brain. We can't at the moment but I don't think it is because of any fundamental lack of understanding, there are just two many bits and it's not known exactly how they all connect.

Second, what is consciousness? I'm in the camp of consciousness being a bit of an illusion. Or to put it better, the sum total of feelings, experiences, memories, rather than a tangible state. So it would be easily (understatement) replicated by building a machine that had the same connections, sensory inputs, and outputs as a human. You just have to think about the amount of data a human recieves in one day; 15-odd hours of continous streaming HD 3D TV, high fidelity 24 hour sound, thousands of smells, tens of thousands of experiences of touch, constant proprioception, pain sensations, plus almost constant review and back-referencing to memories. And this is repeated 365 days a year, for 70-odd years. That's a lot of data that could produce some pretty complicated behaviour that could be described as conscious.

For example, look at a Roomba cleaning robot. I've always wanted one but I don't have one :( . It has some sensors on it (infra red I think) that allow it to avoid "virtual walls" transmitted by bits of kits to keep it within certain parts of the house. Now, if we didn't know that Roomba had these sensors, or didn't know how the sensors worked I would probably describe the robot as being conscious of where it is, of being able to detect areas it didn't want to be and taking action to avoid these areas.

And about simulate/replicate. I'm taking a computer simulation not so much a simulation using a PC but a replication of the processing that occurs in the brain. Which would then be an exact copy of a human if you added all the human inputs and outputs. A way of thinking of this is if we replaced one neuron with an artificial neurone that had the same respones to inputs would a human stop being conscious? I don't think so. And what if we replaced 2 neurones like this? Which leads to the question, "How many neurones need to be replaced before a human stops being conscious?". And I think you could replace them all.
 
A colony of ants might be conscious, but there's no scientific way of testing it.

In fact there's no scientific way of testing whether anything's conscious or not,
so perhaps we should agree with Skinner and say that actually consciousness doesn't exist, it's just a human delusion.

In general I've been wondering if it would be more helpful to call it I-ness than consciousness, which is apparently very difficult to translate into a number of other languages.

I think Crispy's points that the brain is analogue, not digital, and possibly his point about the issue of time, that it needs to exist in resonance with a realtime environment are important.
 
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