Shane Roach said:
In the sense that the thought is not visible, nor can it be weighed, nor can one take hold of it with anything, nor be associated directly with the processes seen in the brain.
1.) Many things which exist are 'not visible' - the very air we breathe, for example. As such, I hardly see how that is relevent.
2.) Chemical/electrical processes do not have weight. The chemicals/electrons participating in them, however, do. So no problem there, either.
3.) Can you 'take hold' of the
process of a light turning on? You can take hold of the consituent parts of the process, but the process itself is not something that lends itself to that.
4.) They
can be associated directly with the processes seen in the brain. I do not have the book with me, but you should read, 'The Illusion of Conscious Will' by Daniel Wegner. I will try to remember to bring it in tomorrow to quote some interesting experiments that are being done on this.
There is this, for a start:
http://news.bbc.co.uk/2/hi/health/4715327.stm
You believe thoughts are the very processes of the brain. Fine. That would be great if you actually described or explained it. Simply declaring that they are one and the same isn't helping me understand the concept much.
Simply declaring that thoughts are non-physical doesn't help me understand the concept much, either ...
Brain scans do not percieve thoughts. The detect activity in the brain. It is not until you communicate with the person involved that you can even so much as go about associating what sorts of things going on in the brain are involved with what sorts of perceptions or ideas.
What is involved there is
translation. In other words, when a certain brain function occurs, I detect it as a red car. The scanner needs that translated, as it does not have the same set up as I do. In other words, we are both looking at brain function. I am seeing a red car and it is seeing a set of squiggles. That set of squiggles is a red car thought.
If I have never in my life seen an idea, and you can't show me one, and no one else can show me one, then I have to say that as far as I can tell that is proof of a rather scientific nature.
I can say the exact same thing about God - thus, I have scientifically disproven God.

And atoms. Oh, and just about anything at all smaller than human vision can detect.
Besides, this completely misses the point: thoughts are
processes. Do we see processes? Or do we instead see things doing things and infer process from that?
If I have never in my life weighed or touched or audibly heard an idea, and yet have percieved ideas over and over in that immaterial sense in which I percieve all things that I percieve at all
It is great how you circularly use the idea that it is immaterial to prove that it is immaterial ...
explain to me where I am going wrong in extending that to the general case, at least as a working hypothesis? What sort of things do you present to counter the fact that no one in history has ever reached out and taken hold of an idea or perception?
Because they are not the kinds of things that you can reach out and take hold of. This is because they are processes, not things. Until you accept this point - at least for hypothetical purposes - I will not really be able to go much further. So how about you do that now?
