I’ve thought about this a lot and really want to go on and on and on on on. But … I won’t. I won’t be offended if you’re not buying it. There’s a couple elaborations that would help but that I’ll save for later (in necessary).
Thanks for such a thoughtful reply. I have to apologize for using the term “emerges” which then lead to your rejection of physical to mental causation. Laziness kept me from explaining the actual theory is use for this - supervenience.
Supervenience is easiest to explain using an example. I typically use this one - when an object is constructed in 360 degrees, the shape of a circle (or ‘circleness’) supervenes on the object. To be clear, this is not a 1, 2, … procedure. The object has the supervenient property. Chalmers explains supervenience with the following examples:
“Even God could not have created a world that was physically identical to ours but biologically distinct. There is simply no logical space for the biological facts to independently vary.” (in this example
biology is the supervenient property of the physical facts)
“If there is a living kangaroo in this world, then any world that is physically identical to this world will contain a physically identical kangaroo, and that kangaroo will automatically be alive.”
And so in this way I think I have side stepped your problem of physical to mental causation. Any action (like raising your arm) will have a neural base and a mental supervenient base. So consciousness becomes a supervenient property of my physical composition. So consciousness, the immaterial thing in question, is not
created by the physical (nor does it emerge in the same way that biology does not emerge from the physical facts of my body), it supervenes on the physical.
As for animals, I think they are conscious, but a “lighter shade” so to speak. I think that
self-consciousness is a property that could only supervene on a physically complex organisms such as our brains. A system would have to be smart enough to be aware of itself in the way that we are. In this way I think that AI could have consciousness - perhaps even self consciousness. And in this way I do not think that consciousness entails human intellect (because of my thinking that animals have consciousness yet do not have the human intellect).
This is all in direct opposition to your statement, “Complexity in the physical makeup does not result in a specific immaterial reality.” which I think you may be arguing against the evidence. I think it is pretty safe to say that a monkey, a dog, a horse, a cow, etc are all consciously experiencing the world. I believe that their conscious experience is immaterial just like ours - for example I don’t think the sensation of of pain a horse feels when it breaks its leg is completely reducible to physical terms. At the same time, I think its safe to say that these animals are having
less of a conscious experience than we are because they are not aware that they are aware. To me, you need a more sophisticated brain to be able to do that self reflection. To put it in a way that you mentioned: the less complex an animal brain is, the less it can juggle around and ultimately be aware of.
I’ll even be bold and say that I’m giving a more (perhaps not completely) Thomistic account than you are. My gradation of consciousness and intellect is based on the complexity of the brain, but it would also have to rely on body it is put in. For instance, a human brain put in a box (aside from being dead) would not be able to see or hear - it has no eyes or ears. So when Aquinas talks of the form of man, I think he is taking into consideration all of the
physical aspects of man as well. To clarify, if a human brain was put into a dog’s body, it would not have the rational (intellectual) soul of man because it has got the wrong body. Or if you want to leave the brain of this, a human soul could never occupy a dog’s body because it simply isn’t in the form of man. My point is that the brain, and the complexity of our, is an essential feature to the form of man. I do understand that Aquinas say that thought does not go on in the brain, and I’m with him. The supervenient property of an immaterial self-conscious mental life is “where” the thought would be going down.
I too could go on and on but I’ll wait for your reply.
