Thursday 14 August 2008

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

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