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Has consciousness been fully explained?

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One is simulated (brain) in order for the other to emerge (consciousness).

You might as well say that if we simulated a leg, walking would emerge.

But walking does not emerge.

Rather, we get some sort of representation which a human mind interprets as "walking". You don't get a real-world instance of walking.

There is no reason to suspect that consciousness is any different.

A representation of a brain won't allow real consciousness to "emerge", any more than a flight simulator makes something zoom across the real sky.
 
"no different?"

wow

so by your logic a vacuum tube is "no different" from Deep Blue

Please, let's stop with the shell game.

This is your definition of computation we're working with.

By the definition you gave, grandfather clocks and hearts are computers, as well as brains. That was my only point.

And maybe that's true, which is fine.

But to say that I'm somehow attempting to compare Deep Blue with, say, a program that prints "Hello World" is to either fundamentally misunderstand or misrepresent what I've written.
 
Let me formulate the statements in a way that might be more clear to you:

By all means!

We are not sure what functions of the human brain are necessary for consciousness, call this set A.

Some of the functions of the brain can be done with a set of tinker toys, call this set B.

Therefore it is possible that the set of functions B is a superset of A. Until you know of a function in A that is not in B, it has very much to do with it. That was in no way a non sequitur.

Again, you would do well to put down the general philosophy for a moment and look at the brain, if you don't mind my saying so.

Tinker toys are so physically different from the components of the brain that it would be rather silly to attempt to build a functional brain out of them.

We know that the brain coordinates a dizzying array of electrochemical activity in real time, and that consciousness occurs only when this real-time activity is properly synched up in the right time frames.

Things that happen too fast or too slowly we cannot be conscious of, and if the brain activity heats up too much (as in seizure) or slows down too much (as in certain drug-induced states) we lose consciousness. The more we learn, the more we begin to understand about the relationship between time and consciousness.

And we're just beginning to delve into the role of electrochemistry.

It's true that we don't always need to make an artificial organ out of the same stuff as the original. We can make artificial legs out of metal, because metal serves the purpose. But we can't make artificial legs out of water or marshmallows.

Find me a brain biologist who thinks tinker toys are a good choice for artificial brains and we'll talk.
 
Newborns cry. Thats about it.

Funny you should mention that.

As it turns out, a newborn, just hours old, will initiate sympathetic crying when it hears other newborns cry.

However, it will not initiate sympathetic crying when it hears itself crying, or when it hears older babies crying.

Pretty impressive for a brain just a few hours old.

You underestimate the power of the newborn brain.

I mean, really, you should try studying the brain sometime. It's an amazing thing.
 
I just said their consciousness isn't very similar to an adult human. I know it isn't similar because I can't interact with a newborn in most of the ways I can interact with an adult.

What about this logic do you find incorrect?

Well, the most fundamental error is that you're making judgments about awareness based on other criteria -- such as physical coordination, language development, and so forth.
 
No offense, piggy, but it would help a bit if you grouped your posts a bit more. :)

Don't feed your brain sugar and oxygen and see what happens to your conscious awareness.

Irrelevant. A car that works on unleaded fuel and one that works on hydrogen fuel cells are both cars.

The need for proper physical configuration is demonstrated by studies of emotional blindness, pain blindness, split brains, and so on.

And you think this is indication that simulated consciousnesses need the same configuration ?

The very reason we use flight simulations is so that no one gets hurt when the plane "crashes"

I thought it was to save money on dummy planes.

Yet for some reason, some folks want an exception whereby a simulation of a brain is real.

The difference being, and this has been explained several times, that if consciousness is computation, and computation is computation, then simulations of consciousness by computation could indeed be conscious.


Simulations don't exist in reality ? That's news to me !

We should be talking about brains, if we were to stick to the OP, but since this hijack is so long established, as it is we're talking about whether machines can be conscious, which is not a simulation of a brain but rather a functional model of a brain.

That's not a hijack. Whether consciousness can be simulated or copied is at the core of the debate.

Whether it's a simulation or a model, it exists in reality, like everything else. My comment was against the idea of a turing machine, which does NOT exist in reality.

And a computer that runs simulations is not a functional equivalent of a brain. It doesn't do what brains do.

Enlighten me. What do brains do ?

You might as well say that if we simulated a leg, walking would emerge.

And why not ? What's in the definition of "walking" that excludes walking in a simulated context ?

There is no reason to suspect that consciousness is any different.

See my comments about computation above.
 
Tinker toys are so physically different from the components of the brain that it would be rather silly to attempt to build a functional brain out of them.

We know that the brain coordinates a dizzying array of electrochemical activity in real time, and that consciousness occurs only when this real-time activity is properly synched up in the right time frames.

What about a dizzying array of tinker toy activity ? :p

As it turns out, a newborn, just hours old, will initiate sympathetic crying when it hears other newborns cry.

So they have reflexes. A spider's leg has reflexes.
 
I know precisely what you wrote. You wrote that we can program their building blocks, which are physical matter.

What I'm trying to get you to understand is that we can do no such thing, and that creating digital simulations is quite a different kettle of fish and not at all comparable.

So, even after I make it clear I'm was not and am not talking about matter per se, you keep insisting that it's impossible to program matter. Nice debating skills you have...

Also, you don't need to be able to program matter to program a system built out of matter.
 
Quite right about the only essential part being the brain.

I was not saying that arms and legs are necessary for consciousness.

I was drawing an analogy between their role in the behaviors they're involved in, and the brain's role in the behaviors that it is involved in.

If you want to create a machine that exhibits the behavior of moving across the floor, you can't do it by pure programming with only enough hardware to support the programming and no more. You have to have enough hardware to support running the program and to enable the movement.

Same thing for any other behavior you care to get a machine to perform, whether that's grasping, seeing, speaking, or being conscious (I still hate it that we have no verb for this).

There are no pure-programming solutions for behavior.

Wrong. Like I said, all senses and effectors can be emulated with only enough hardware to support the programming. In that case, the program could only be conscious within the emulated world.

It doesn't really matter whether a robot or a person is conscious of the external world, a simulated world, or a dream.

The fact remains that consciousness is a behavior locatable in real spacetime.

And programming alone is insufficient to produce such behavior.

Incredulity is not evidence.

You want a conscious robot, you're going to have to build it to be conscious.

We don't yet know how to do that, but we know that biological processes build our brains to do it.

Again, I would rather say biological processes build our brains that are capable of consciousness. To say "build to do it" implies purpose. There is no inherent purpose in those biological processes.
 
I believe it's in "The Cognitive Neurosciences, 4th Ed." but I don't have a link. (ETA: It's either there or "Human" -- I'm reading both simultaneously.)

ETA: Thanks, I'll try to look it up.

Anyway, yes, it's quite possible we'll figure it all out before long.

Doesn't change the fact that neurons are bits of matter, so if you want to build a functional equivalent it, you're not going to program your way there, for the same reason that you're not going to program your way to the functional equivalent of a heart or a leg.

Wrong. Functional equivalent of a leg is for example a wheel, with axles, drive-train, etc. The purpose of the leg is to facilitate movement. As for the heart, it's a pump, for crying out loud! I've got a several pumps in my house working 24/7.

Just to reiterate, I don't need to be able to program matter to program systems built out of matter.

Yes, computers and programming could well be involved, but there has to be a physical component.

Yes, for real-life consciousness.
 
Incorrect. You can represent the system. But that's not the same as creating something that can do what the system does in real 4-D spacetime.

All I need is for it to respond to the same inputs with the same outputs. I don't need to program matter for that. That is ridiculous.

You can't live in a blueprint of a house. You can't get electricity from a digital simulation of a hydroelectric station.

Strawman and analogy fail. We're talking about behavior.
 
What evidence is that?

Care to point to it?

Actually you did, earlier. Some guy who you hold in high regard and is supposedly an expert in the field said that we don't understand all of the neurons yet. That means we understand at least some, if not most. For me, that is indeed evidence that all neuron types will sooner or later be understood and therefore programmable.

The only "evidence" against so far is incredulity...
 
Strawman and analogy fail. We're talking about behavior.
Yeah, it's a category error. Piggy thinks that consciousness is - or requires - a substance. Which substance he is unable to locate, quantify, or define. Because there's no such thing.

That's where the disconnect comes from.

Simulated water isn't real water, but a simulated song is a real song.

If consciousness is a substance, Piggy is right.

Problem is, consciousness is a behaviour; Piggy is wrong.
 
Funny you should mention that.

As it turns out, a newborn, just hours old, will initiate sympathetic crying when it hears other newborns cry.

However, it will not initiate sympathetic crying when it hears itself crying, or when it hears older babies crying.

Pretty impressive for a brain just a few hours old.

Few hours? Don't you mean few months?

You underestimate the power of the newborn brain.

I mean, really, you should try studying the brain sometime. It's an amazing thing.

There's no underestimation, everyone here agrees (I think) that the brain is an amazing thing, be it that of an adult's or that of a newborn's. It's just that consciousness is not something we're born with, it is something we develop.
 
No offense, piggy, but it would help a bit if you grouped your posts a bit more. :)

I'll try, as well as I can. Probably won't last, tho. I have the opposite experience.

Irrelevant. A car that works on unleaded fuel and one that works on hydrogen fuel cells are both cars.

It's not irrelevant to the actual post I was responding to. Each of those cars needs a correct configuration of parts and some kind of "juice" to keep it going, just like your brain does.

Doesn't really matter what the juice is, as long as it works.

So my point stands that your brain does need a proper fuel and configuration. If we manage to build a conscious machine, it too will need something more than logic to make that happen.

And my point stands that you can't get behavior by programming alone and just enough hardware to support the programming... you've got to enable the behavior with real-world apparatus if you want real-world behavior.

And you think this is indication that simulated consciousnesses need the same configuration ?

Nope, that was never my point. But pain blindness, emotional blindness, and other such troubles in the brain indicate clearly that configuration matters in the brain.

That doesn't mean that no other configuration will work.

But it's rather absurd to think we'll have a solution in which it's irrelevant.

I thought it was to save money on dummy planes.

Regardless, the purpose of the simulation is to provide an illusion (for whatever reason) not to generate a real-world instance of flying. Remove the animal interpreter, and the illusion goes away, and you're left with lights and sounds and a big hunk of metal and plastic moving around a room.

Similarly, remove an animal interpreter from your simulation of a brain, and you're left with a machine that's doing something that doesn't resemble a brain at all.

The simulated brain is an illusion. A very useful one, but an illusion nonetheless.

The difference being, and this has been explained several times, that if consciousness is computation, and computation is computation, then simulations of consciousness by computation could indeed be conscious.

Repeating an unsupported and unsupportable idea doesn't make it somehow accurate.

Consciousness is behavior. If you want to create a machine that engages in it, you've got to build it to do so.

Calling that behavior a kind of "computation" doesn't change that fact. If what the brain does, and the heart does, and hurricanes do, and grandfather clocks do is all "computation", then, well, if you want to build something that does the same thing, then you have to build something that does the same kind of computation, but it has to be in happening in 4-D spacetime, not an unreal simulated digital world.



Simulations don't exist in reality ? That's news to me !

The simulators certainly do. But the things they're simulating don't.

If they did, you could power your town by creating a digital simulation of a nuclear power plant. But you can't, because the power plant doesn't exist in the real world -- it's an interpretation your brain gives to the computer's output, which is not at all similar to a nuclear power plant.

Those guys who are creating a neuron-level sim of the brain clearly understand this. They caution that it is only a "representation" and will not actually be conscious even if they succeed perfectly.



That's not a hijack. Whether consciousness can be simulated or copied is at the core of the debate.

It's at the core of the hijack. But you don't find folks who are studying the brain, and attempting to explain consciousness, obsessing over whether or not simulations could be conscious (they know they can't). They're not even worrying about making conscious machines, because they understand that we first have to understand how the brain does it, which we don't.

The answer to the question "Has consciousness been fully explained?" lies in brain science, and not in imaginary conscious machines that have not been built, not been designed, not been conceptualized.

Whether it's a simulation or a model, it exists in reality, like everything else. My comment was against the idea of a turing machine, which does NOT exist in reality.

The simulator exists in reality. The simulation requires that your brain understand a symbolic system and interpret things like lights on a screen to represent real things.

The model, on the other hand, exists in reality.

You can get hurt if a model plane flies into you and hits you in the head. You can get hurt if a computer running a sim falls off a shelf onto your toe. But you can't get hurt by colliding with a digitally simulated airplane because a simulated airplane can't collide with you because it's not real.

Enlighten me. What do brains do ?

That's a fascinating question, and largely unanswered, but back to my point, they clearly do not run digital simulations of brains.

And why not ? What's in the definition of "walking" that excludes walking in a simulated context ?

This is why questions about consciousness belong in the science forum, not in the philo forum.

Now we're musing about the definition of "walking" rather than following a logical line of argument.

The point of the discussion we were having was not to ponder linguistics.

If you want a machine to walk, you have to build it to walk. Making it run a digital simulation of a person strolling in the park will not enable the machine to walk.

And the same will be true of any other behavior you care to name. There's no reason to think consciousness is any different.

See my comments about computation above.

I did.
 
Few hours? Don't you mean few months?

Nope. Hours.



There's no underestimation, everyone here agrees (I think) that the brain is an amazing thing, be it that of an adult's or that of a newborn's. It's just that consciousness is not something we're born with, it is something we develop.

I know of no developmental biologist who believes that.

Care to name one?
 
Yeah, it's a category error. Piggy thinks that consciousness is - or requires - a substance. Which substance he is unable to locate, quantify, or define. Because there's no such thing.

That's where the disconnect comes from.

Simulated water isn't real water, but a simulated song is a real song.

If consciousness is a substance, Piggy is right.

Problem is, consciousness is a behaviour; Piggy is wrong.

Piggy claims that the only conscious things we know of require "substance": a specific configuration of neurons.

Now, if you're claiming consciousness doesn't require a substance (neurons, transistors, tinker toys, etc.), you're a lot closer to idealism than you realise.
 
I'll try, as well as I can. Probably won't last, tho. I have the opposite experience.

It's just harder to follow, that's all. :)

It's not irrelevant to the actual post I was responding to. Each of those cars needs a correct configuration of parts and some kind of "juice" to keep it going, just like your brain does.

My point is that different cars will need different conditions in order to function.

So my point stands that your brain does need a proper fuel and configuration. If we manage to build a conscious machine, it too will need something more than logic to make that happen.

Yes, but it might not need the same configuration/fuel than the brain in order to produce consciousness.

Repeating an unsupported and unsupportable idea doesn't make it somehow accurate.

And so far you've not shown that it's inaccurate. We can tell that consciousness is an action, not a substance.

Consciousness is behavior.

And here you agree with what I just said.

If they did, you could power your town by creating a digital simulation of a nuclear power plant.

Electricity is not computation. Apples and oranges.

It's at the core of the hijack. But you don't find folks who are studying the brain, and attempting to explain consciousness, obsessing over whether or not simulations could be conscious (they know they can't).

They know this ? Link ?

You can get hurt if a model plane flies into you and hits you in the head. You can get hurt if a computer running a sim falls off a shelf onto your toe. But you can't get hurt by colliding with a digitally simulated airplane because a simulated airplane can't collide with you because it's not real.

Characters in the simulation can get hurt by the simulated plane.

The point is, a turing machine doesn't even exist, while a simulation does. As I said this was my point.

This is why questions about consciousness belong in the science forum, not in the philo forum.

That's okay. I don't even like philosophy.

Now we're musing about the definition of "walking" rather than following a logical line of argument.

It's actually pretty important. A simulated person is not a person. But what about simulated actions ? Are they not actions, themselves ?

If you want a machine to walk, you have to build it to walk. Making it run a digital simulation of a person strolling in the park will not enable the machine to walk.

I know you can understand this point so I have to wonder if you're doing this on purpose: the MACHINE isn't walking. The simulated person IS.
 
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