The implication of indirect realism is that what we experience is a model of the world, not the world as it is. This means that when we look at someone's brain, the brain we experience is a visual model, not the the way it really is. We too often think of it as the other way around - that what we see is real, and then we run into the problem of how the brain generates the model we experience. If we were to think of it in reverse - that what is real is "out there", and "in here" is the model, then we can understand the reason why we can't experience someone else's experiences - or mental activity. The brain that we see is a model of their mental activity that is happening "out there" in the way that it does whether or not someone is looking at it or not. You might say that the brain we experience visually is the model of all of their mental activity, including their conscious experience. — Harry Hindu
No the hard problem has not been solved. Our best guess is that the consciousness is a kind of reflection/illusion produced by matter in the brain.
We cannot identify the neurons of consciousness because we're pretty sure that consciousness has something to do with the way neurons interact with each-other rather than a property of individual neurons.
Consciousness is like a dance in this sense. When the dancers (neurons) are motionless, there is no consciousness. It rises and falls with activity the between them. — VagabondSpectre
Isn't it possible that the Conscious Mind grows along with the Neurons in the Brain and is a separate thing from the Neurons? — SteveKlinko
Isn't it possible that the Conscious Mind grows along with the Neurons in the Brain and is a separate thing from the Neurons? — SteveKlinko
Yes and no.
The brain is the seat of consciousness. If we meddle with the brain, the consciousness gets meddled with. If the brain gets destroyed, as far as we know the consciousness gets destroyed.
A good analogy here is the difference between computer software and computer hardware:
The hardware houses data and provides physical connect-ability between bits of data.
The software is data contained within the neurons, but more importantly it is the complex way in which individual bits of data connect together which produces a higher function.
The software is dependent upon the hardware (and constrained by it), but is much greater (more complex) than merely the sum of it's parts (it's hardware and also it's bits). There are 100 billion neurons in the human brain, but there are 1000 trillion connections between neurons in the human brain. It is these connections which seems to most plausibly represent the base unit of human cognition.
Like a dance (consciousness), it cannot be defined only by the nature of the dancers (the hardware of the brain), it must also be defined by their movements, including the spaces in-between them. — VagabondSpectre
How is there any explanatory gap at all, much less a big one, if neural activity IS the model? Again, all you see is a brain, or a model of the brain on a computer screen with different colors representing certain activity in the brain. Just as the model on the computer screen isn't the real brain, the brain you look at when a doctor opens up someone's head is just a visual model of someone's neural activity.But when you say Visual Model what is that? I want to know what the Model is. If you say the Model is just Neural Activity then I think there is a big Explanatory Gap in going from Neural Activity to the Conscious Experience. Measuring the Neural Activity is the David Chalmers Easy Problem of Consciousness but understanding how the Visual Experience happens as a result of the Neural Activity is the David Chalmers Hard Problem of Consciousness. I don't believe the Hard problem has been solved yet. — SteveKlinko
How is there any explanatory gap at all, much less a big one, if neural activity IS the model? Again, all you see is a brain, or a model of the brain on a computer screen with different colors representing certain activity in the brain. Just as the model on the computer screen isn't the real brain, the brain you look at when a doctor opens up someone's head is just a visual model of someone's neural activity. — Harry Hindu
I agree that the Brain has a type of Software and a type of Hardware. But from my point of view none of that has to actually be the Conscious Mind. A Conscious Mind is connected to all that, but does not have to actually be that. A Computer has Hardware and Software but will not be Conscious because it is not connected to a Conscious Mind as far as anyone can know. Certainly a Computer does not have Conscious Volition. The Hardware and Software of a Brain probably do not have Conscious Volition. The Conscious Mind provides the Conscious Volition. — SteveKlinko
Let's just talk about the experience of the color Red. Electromagnetic waves in the external Physical World are an oscillating Electric and Magnetic phenomenon. A changing Electric field causes the Magnetic field and a changing Magnetic field causes the Electric field. This mutual interaction of the two types of fields is how the wave propagates. Now think about the Red experience. The Red experience in and of itself has nothing to do with the Electromagnetic phenomenon. There is no sense of any of the actual properties of Red Electromagnetic waves in the Red experience. There is no sense of an oscillatory phenomenon in the experience of Red. The Red experience is a whole different Kind of thing than Red Electromagnetic waves. So the Red experience is something that we see in place of actually seeing Red Electromagnetic waves.
Now the next step is to talk about the Neural Activity that occurs when Red Electromagnetic waves hit the Retina. We know that certain Neurons fire when Red Electromagnetic waves hit the Retina. But Neurons firing is not the Experience of Red. The experience of Red is a whole different thing than Neurons firing. So the Red experience is something that we see in place of actually sensing Neural Activity. That's where the Explanatory Gap comes in and that is the Hard problem of Consciousness. — SteveKlinko
It sounds like you're just presuming that some sort of separate entity exists apart from the brain and it's goings on which has something to do with human consciousness. I contend that the human brain contains the entirety of whatever human consciousness really is.
It's possible that some extra-dimensional plane contains the human consciousness, but we've not much reason to presume this is the case — VagabondSpectre
So, if these waves in your mind have a color, then if direct realism is true, then the waves out there have color and look like the waves in your mind too, right — Harry Hindu
↪SteveKlinko If there are no waves in your mind, then how is it that you can say "I'm thinking of waves."? Again, I'm not saying that there are actual waves in your head. I'm saying that whatever it is that you think takes the form of the qualia that you experience of the world. To say that you can think of anything is to say that your thoughts take some form for you to even be aware that you are thinking. What form do they take? — Harry Hindu
Our best guess is that the consciousness is a kind of reflection/illusion produced by interactions of matter in the brain. — VagabondSpectre
There are intractable problems in all branches of science; for Neuroscience a major one is the mystery of subjective personal experience. This is one instance of the famous mind–body problem (Chalmers 1996) concerning the relation of our subjective experience (aka qualia) to neural function. Different visual features (color, size, shape, motion, etc.) are computed by largely distinct neural circuits, but we experience an integrated whole. This is closely related to the problem known as the illusion of a stable visual world
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