Originally posted by metacristi
fliption
And the topic is that a reductive explanation of qualia at neurology must fail.Why is it so?The whole point of my argumentation is that there is no reason to think we cannot have a reliable,detailed,theory of consciousness based only on neurology which to have also a potentially true explanation of how subjective experiences,qualia,appear.In other words a reduction is still possible to be confirmed conceptually later.Eventually we can use a mixture of first person and third person methods to confirm it.
This is you disagreeing with the conclusion of the philosophical argument. But you don't ever specifically say
why you disagree with it. Other than to say it isn't sound.
Perhaps we're all starting from a different place. From your comments above it sounds like we all would probably disagree as to what it means for something to be "reductively explained". It is one thing to give a rational explanation for how something happens and then concede that the explanation could be wrong. This is what science does, so we all agree that it can't be certain about many of it's explanations, as you have repeated many times. In these cases, the explanation goes something like this:
Reductive explanation:
Step 1 happens and necessarily causes
Step 2 to happen which then necessarily causes
Step 3 to happen which allows for the
End Result/Conclusion to happen and therefore be reductively explained
This is an explanation that would cause a rational person to say "ahhh yes I see how this works." If we test this explanation emperically we can test it at each point and conclude that this explanation is emperically verified. But of course it isn't certain.
On the other hand this uncertainty does NOT mean that there is an explanatory gap allowed to exists in the reductive explanation itself. You can't say "since science can't be 100% certain about it's explanations, we are going to allow for explanations that have gaps in them". This is what you seem to be arguing for. The explanation has to be complete and answer the questions 100%. A real explanation will allow you to measure anything that needs measuring, in principal(Not necessarily in practice). Of course the results could be wrong.
Here is how I perceive consciousness to be as it relates to the example above.
Step 1 brain stuff happens and necessarily leads to
Step 2 Details around neurology happen which
could lead to
Step 3 Consciousness
We can test emperically that brain states in step 1 correspond to conscious events in step 3 and assume that the explanation is emperically verified because of the correlation. But the problem is that the link between step 2 and step 3 is not a necessary step and there is nothing you can even postulate that would make it so. This is not even an explanation because it just jumps over where the real gap exists. If a rational person looked at this explanation, they would not say "ahh that's how it works". They still wouldn't know except that somehow neurology magically creates a subjective experience.
So if you are calling this last example a reductive explanation then I agree with you that a reductive explanation of consciousness can be developed by science. But this is not what I and what I think others here are calling a reductive explanation. So perhaps the definition of what it means to be reductively explained is where we need to focus.
Just to be sure all of this is clear, here's another analogy:
A mother gets home from work and finds orange juice on the ceiling of her bedroom. She goes to each of her 2 sons to find out how this happened.
1st Son: Saw son #2 walk in there with a glass of orange juice and the cat jump on his head and he threw the glass up, splashing the juice onto the ceiling.
2nd Son: Saw son #1 walk into the room with a glass of orange juice and close the door behind him.
The first one is a reductive explanation. It could be completely false but it is the better explanation. The second is not a reductive explanation because you still don't know how the juice got on the ceiling. You can even verify that the second story is absolutely true. It still doesn't explain anything. You would then have to go interrogate the first son.(or change the natural ontology with regard to consciousness

)