Showing posts with label philosophy of mind. Show all posts
Showing posts with label philosophy of mind. Show all posts

Sunday, 24 August 2008

An Afterlife? - Wave If You're There

Another one of my diversions. This one concerns some brief postings by Kim. You can read the full text here. Kim speculates about the idea that the Spirit uses waves to communicate. I picked up on her concern that there would need to be "a translating medium" and replied to her because this seemed so reminiscent of Descartes. It provides a summary of what Descartes thought and also what the central issues are in the philosophy of mind.

Kim's posts were made on 18 Jul 2008 at 08:36 and 08:43am. My post was made on 18 Jul 2008 at 04:13 pm:

Hi Kim. I am not surprised that you are struggling with your ideas but at least you can console yourself with the knowledge that you are in the greatest of company. I would like to pass on a few observations of your post in the hope of advancing your ideas which I do find intriguing. You may or may not be aware that you have expressed ideas which are very similar to those of the great philosopher, Rene Descartes, who also struggled with the same material.

Descartes, like you, argued that there is an essential self which is not material and which inhabits our bodies. Matter does not have this self awareness but it does have attributes and so can do things. This is not the same as having life. He believed that the self has no attributes, no physical characteristics because its essential quality is its own existence. To be alive is to able to say "I am me" and we can never say "I am you" even if you and I share similar qualities. We can never be another person. In contrast physical matter is defined by its attributes and abilities. Essentially, he described a "ghost in the machine".

Also, like you, Descartes believed that there had to be some kind of interface which allowed the mind and body to relate to each other and rather oddly he believed that this was located in the pineal gland. Although that is obviously not the case, it is intriguing that you share his worry!

I suppose the central issue is whether selfhood is really a physical thing all along and consciousness and self identity is just a manifestation, an illusion, if you will, which can wholly be explained by physical processes or whether ultimately it is not possible to provide an adequate explanation of life by re-arranging matter to form being. The scientific approach provides a very powerful case for matter being the answer to everything. Set against that is the fact that things we associate with being, such as the ability to have free choice and intentions do not easily fit into an entirely physical universe. How can the strict rules of matter allow us to make decisions? Would that not cash out as no more than a string of inevitable occurences entirely governed by the detailed actions and reactions of material processes? Also, how can matter, alone, account for why as well as how the universe came to be?

Just a few observations which I offer in the hopes of clarifying your thinking and encouraging further ideas. Good luck!

Peter Rayner

Kim replied that our brains are, in some respects, like computers and went off to do some thinking. I referred her to our series of posts, now re-produced in this blog.

Kim's post was made on 18 Jul 2008 at 04:28 pm. My reply was made on 18 Jul 2008 at 04:33 pm:

Hi Kim. You might like to look back over my discussions with Richard in which we discuss intentionality and how computers think with particular reference to John Searle's chinese room illustration.

Peter Rayner

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Thursday, 14 August 2008

An Afterlife? - Richard's 5th Post - Thinking and Experience

Richard's first reply to me agrees that computer thinking is a process whereas human thinking is an experience.

Richard's post was made on 11 May 2008 at 05:55 pm:

Hi there Peter, I cam across your post with a huge interest, as I studied Philosophy of mind a little in my first year at University, we also covered a question you asked in your post, about whether computers can think. The conclusion I came to back then was that the aim of a computer is to speed up the processing and memorising abilities us humans have, of which these do not neccessarily need a conscious subjective mind like us humans have.

The other thing I gathered a few thoughts on was the meaning of thinking, as to answer this question it is vital you can say what it means. The definition I come up with is that to think, one must have at least one experience of anything not being able to read thoughts in one's head. This is the difference between the processing ability of a computer, and the thinking of a human. A computer's processes can be logged and read like a book, whereas a human's thoughts can never be realistically confirmed until the person says what their subjective thoughts were.

I hope you find some things in there that strike chords of interest with you, and I look forward to hearing from you.

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Richard Debnam

An Afterlife? - Peter's 1st Post - Do Computers Think?

At this point I joined the Facebook discussion with a reply to Richard's contributions. I discuss apparent differences between the way in which a computer can be said to think and human thought. The issues of process, in contrast to experience, consciousness, and emotion are considered. I refer, also, to the limitations of physical science in explaining the full meaning of time and space.

My post was made on 10 May 2008 at 07:43 am:

Hi everybody. I have recently joined Facebook and found this site. I have read your various contributions with interest because I specialised in the philosophy of mind many years ago and am still as fascinated with it as ever. All of you make some kind of reference to experience or consciousness which does seem to be crucial in coming to some kind of conclusion. I remember, long before the rise of microsoft, being asked to consider the question"Do computers think?". The question is appropriate because a computer can perform many sophisticated tasks and even have some sort of memory of what it does. If we run a computer program can we say that the computer has had an experience? Can we also say that it has awareness of what it is doing? What also do we make of the issues used to date the beginnings of human identity, namely the production of art. Of course a computer could produce art but could it do it for pleasure? Could it experience emotion? I am suggesting that the ability to build sophisticated physical structures does not take us very far at all toward an understanding of what it means to be human. Therefore we need some other means of addressing these clear features which physical science is unable to describe. Consider, again, our ability as physicists to describe the structure of the physical cosmos so precisely that we can describe the process of physical evolution all the way back to the dawn of the known cosmos - the big bang. If the cosmos began then does time begin also, and space. Can we imagine what preceded time, and space. What sense is there in saying "In the beginning was nothing - and then it exploded"?

These are just some of the issues which have haunted me over the years. I do not pretend to have the answers and I am probably further away from answers than when I started - but I am inclined to continue the quest.

Best wishes to you all. I hope you find my small contribution of interest and that you will reply to it.

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Peter Rayner