My friend is a Doctor of Philosophy and teaches some philosophy and religion classes, which I guest speak for each semester. He asked me to type this up to share with his students before I come in this semester. I figured I would share it on the forums I frequent since it exists, though I know full well the reaction to expect here.
Over the years I have composed several separate arguments attempting to logically show that god exists, rooted in actual evidence. I have shared this with more people than I can count, from strangers on Reddit to close friends who are Doctors of Philosophy. Despite what some may believe, I have taken much from these discussions and critiques, most commonly the need to elaborate and connect my points better. This is an attempt to do just that. Make no mistake, I am a skeptic and do not take my beliefs as absolute certainty. I’ve done the best to keep my beliefs logical and grounded in known science, while all the time realizing the very reliance on logic is rooted in faith. Those who know me can attest to the fact that over the years I have taken from what I learn in philosophy and science, and my belief have evolved greatly. This is simply a current form of my ideology that will surely evolve further. While it will unavoidably be a bit lengthy, I will try to be concise.
The Axiomatic Self
We must begin with what we can know with absolute certainty, if there is anything at all. In our case, the one thing we seem capable of knowing is that we, ourselves, exist. We cannot even be certain that OTHERS exist, but when a human being makes the statement “I exist,” they are stating an axiomatic fact. An axiom is “an irreducible primary. It doesn't rest upon anything in order to be valid, and it cannot be proven by any "more basic" premises. A true axiom can not be refuted because the act of trying to refute it requires that very axiom as a premise. An attempt to contradict an axiom can only end in a contradiction.”(Axiom). These characteristics are all true of one’s self, or more specifically the conscious self. We know it directly, and know all else through it. Even the subconscious aspects of our own mind can only be known, by definition, through the conscious mind. This makes the existence of the conscious self a fundamental fact, like that A is A (Law of Identity). This means that throughout the rest of our metaphysical discussion here, we cannot reject the existence of the conscious self, just as we cannot reject that A is A.
The Material, External Universe
While it cannot be known directly, it seems quite likely that the objective world of matter exists as well. Even if positions like solipsism or brain-in-a-vat were true, these positions, while possibly true, are useless to us, and there is no reason to not act as if our experience is real anyways. One reason to believe this is that science itself implies the existence of the objective universe and matter. If it did not exist, we would expect everybody to act unpredictably in all situations. In other words, when people are all looking at the same image, they tend to see the same thing. When people on the other side of the world recreate a successful experiment, they should expect to get the same results. Further, while we know the mind directly, it is also quite likely that matter impacts the mind just as the mind impacts matter. Brain damage (Cognitive Problems After Traumatic Brain Injury), drug use (Cognitive enhancement by drugs in health and disease), prescription medication (Selective serotonin reuptake inhibitors (SSRIs) - Mayo Clinic), even gut bacteria can have an impact (http://neuroscienceresearch.wustl.e...influences anxiety and depression_Tran .pdf) on one’s cognition. So not only is there no reason to act as if the universe of matter does not exist, but there are many reasons to believe it does, in fact, exist.
Property Dualism
Property Dualism comes into play because the mind and brain seem to have different characteristics, in other words the two have different properties (Properties (Stanford Encyclopedia of Philosophy)). Dualism is this case does not necessarily mean the dualism of Decartes, but simply that the properties suggest the mind and brain are two separate things. This is a problem for monistic positions, as they require all things to be reducible into one substance, from matter to some sort of spiritual mind of god depending on the individual belief. If property dualism exists, monism is not possible because two non-identical things, by definition and the Law of Identity, cannot be identical, and therefore are not reducible into each other. Again, this does not imply the dualism of Decartes. Rather, it implies a type of emergent pluralism, the position that substances can rise out of other substances, but become something separate. In other words, just because the mind may have arisen from matter does not imply that they are identical and reducible, but one emerges from the other. This can be compared to a mother and her child. In the beginning the latter is entirely reliant on the former, but over time they become completely separate, distinct, non-identical and non-reducible beings.
So what are the characteristics of a brain and how do they differ from a mind? For one, a brain is physical but a mind is not physical. To illustrate the difference, realize that we can see a brain and its contents, but not a mind and its contents. While an fMRI (What Is FMRI? - Center for Functional MRI - UC San Diego) can show the physical activity occurring in the brain, it is not the same as seeing what is occurring in the mind (http://organizations.utep.edu/portals/1475/nagel_bat.pdf), and especially not even close to shared experience. The brain, along with all of the material world, is bound to physical determinism. It follows specific laws at all times. This is well illustrated by things like the cycles of depression and of abuse, as well as things like the trip induced by taking a drug. Like a storm rolling in, the brain does not have any method of fighting off a cloud of depression, or magically overcoming trauma from the past, and one with limited self-control can be seriously carried away in a psychedelic trip. Yet the conscious mind is able to become aware of (Self-Regulation | Education.com) and overcome such deterministic cycles (Center for Cognitive Therapy - What is Cognitive Therapy?). We can even use placebos effectively without deception (Placebos without Deception: A Randomized Controlled Trial in Irritable Bowel Syndrome). The mind is also capable of imagining things that could never occur in nature, things from the fantasy Dreamlands of Lovecraft to the computer or phone we have actually brought into being – things that cannot grow in a garden no matter how hard you try. This is further illustrated by the fact that that one can even control their own dreams with lucid dreaming, in which one can engage in all sorts of things that contradict the objective, external world. As these few examples show, the mind and brain have very different properties, and based in the logic above, cannot be identical or reducible. While the mind may emerge from the brain, it is still something separate and different from the brain, like a child to its mother. But as we have seen, not only does the mind differ from the brain, it seems to differ from natural law. How is this possible?
Over the years I have composed several separate arguments attempting to logically show that god exists, rooted in actual evidence. I have shared this with more people than I can count, from strangers on Reddit to close friends who are Doctors of Philosophy. Despite what some may believe, I have taken much from these discussions and critiques, most commonly the need to elaborate and connect my points better. This is an attempt to do just that. Make no mistake, I am a skeptic and do not take my beliefs as absolute certainty. I’ve done the best to keep my beliefs logical and grounded in known science, while all the time realizing the very reliance on logic is rooted in faith. Those who know me can attest to the fact that over the years I have taken from what I learn in philosophy and science, and my belief have evolved greatly. This is simply a current form of my ideology that will surely evolve further. While it will unavoidably be a bit lengthy, I will try to be concise.
The Axiomatic Self
We must begin with what we can know with absolute certainty, if there is anything at all. In our case, the one thing we seem capable of knowing is that we, ourselves, exist. We cannot even be certain that OTHERS exist, but when a human being makes the statement “I exist,” they are stating an axiomatic fact. An axiom is “an irreducible primary. It doesn't rest upon anything in order to be valid, and it cannot be proven by any "more basic" premises. A true axiom can not be refuted because the act of trying to refute it requires that very axiom as a premise. An attempt to contradict an axiom can only end in a contradiction.”(Axiom). These characteristics are all true of one’s self, or more specifically the conscious self. We know it directly, and know all else through it. Even the subconscious aspects of our own mind can only be known, by definition, through the conscious mind. This makes the existence of the conscious self a fundamental fact, like that A is A (Law of Identity). This means that throughout the rest of our metaphysical discussion here, we cannot reject the existence of the conscious self, just as we cannot reject that A is A.
The Material, External Universe
While it cannot be known directly, it seems quite likely that the objective world of matter exists as well. Even if positions like solipsism or brain-in-a-vat were true, these positions, while possibly true, are useless to us, and there is no reason to not act as if our experience is real anyways. One reason to believe this is that science itself implies the existence of the objective universe and matter. If it did not exist, we would expect everybody to act unpredictably in all situations. In other words, when people are all looking at the same image, they tend to see the same thing. When people on the other side of the world recreate a successful experiment, they should expect to get the same results. Further, while we know the mind directly, it is also quite likely that matter impacts the mind just as the mind impacts matter. Brain damage (Cognitive Problems After Traumatic Brain Injury), drug use (Cognitive enhancement by drugs in health and disease), prescription medication (Selective serotonin reuptake inhibitors (SSRIs) - Mayo Clinic), even gut bacteria can have an impact (http://neuroscienceresearch.wustl.e...influences anxiety and depression_Tran .pdf) on one’s cognition. So not only is there no reason to act as if the universe of matter does not exist, but there are many reasons to believe it does, in fact, exist.
Property Dualism
Property Dualism comes into play because the mind and brain seem to have different characteristics, in other words the two have different properties (Properties (Stanford Encyclopedia of Philosophy)). Dualism is this case does not necessarily mean the dualism of Decartes, but simply that the properties suggest the mind and brain are two separate things. This is a problem for monistic positions, as they require all things to be reducible into one substance, from matter to some sort of spiritual mind of god depending on the individual belief. If property dualism exists, monism is not possible because two non-identical things, by definition and the Law of Identity, cannot be identical, and therefore are not reducible into each other. Again, this does not imply the dualism of Decartes. Rather, it implies a type of emergent pluralism, the position that substances can rise out of other substances, but become something separate. In other words, just because the mind may have arisen from matter does not imply that they are identical and reducible, but one emerges from the other. This can be compared to a mother and her child. In the beginning the latter is entirely reliant on the former, but over time they become completely separate, distinct, non-identical and non-reducible beings.
So what are the characteristics of a brain and how do they differ from a mind? For one, a brain is physical but a mind is not physical. To illustrate the difference, realize that we can see a brain and its contents, but not a mind and its contents. While an fMRI (What Is FMRI? - Center for Functional MRI - UC San Diego) can show the physical activity occurring in the brain, it is not the same as seeing what is occurring in the mind (http://organizations.utep.edu/portals/1475/nagel_bat.pdf), and especially not even close to shared experience. The brain, along with all of the material world, is bound to physical determinism. It follows specific laws at all times. This is well illustrated by things like the cycles of depression and of abuse, as well as things like the trip induced by taking a drug. Like a storm rolling in, the brain does not have any method of fighting off a cloud of depression, or magically overcoming trauma from the past, and one with limited self-control can be seriously carried away in a psychedelic trip. Yet the conscious mind is able to become aware of (Self-Regulation | Education.com) and overcome such deterministic cycles (Center for Cognitive Therapy - What is Cognitive Therapy?). We can even use placebos effectively without deception (Placebos without Deception: A Randomized Controlled Trial in Irritable Bowel Syndrome). The mind is also capable of imagining things that could never occur in nature, things from the fantasy Dreamlands of Lovecraft to the computer or phone we have actually brought into being – things that cannot grow in a garden no matter how hard you try. This is further illustrated by the fact that that one can even control their own dreams with lucid dreaming, in which one can engage in all sorts of things that contradict the objective, external world. As these few examples show, the mind and brain have very different properties, and based in the logic above, cannot be identical or reducible. While the mind may emerge from the brain, it is still something separate and different from the brain, like a child to its mother. But as we have seen, not only does the mind differ from the brain, it seems to differ from natural law. How is this possible?