Hi Paul
moving finger said:
The ability of an agent to register and classify perceptual phenomena under at least two headings : Phenomena which are considered to be associated with a part of the agent on the one hand, and phenomena which are considered to be associated with objects external to the agent on the other.
Paul Martin said:
You have defined the "feeling of self" but you have not defined the self itself, which is what I think the original question asked. What you have offered is a criterion for testing whether one's claim to having a feeling of self is legitimate, or believable.
As you correctly pointed out, we are here talking about the definition of “self” and NOT “the conscious feeling of self” (an important point to bear in mind).
“Self” is simply
a particular classification of parts of the world by an agent – it is an attempt by an agent to draw a boundary between two distinct parts of the world. Once an agent is able to classify perceptual phenomena as defined above, the agent will be able to distinguish between parts of the world which it considers “self” on the one hand (ie those parts of the world the agent considers to be internal to its physical and operational structure), and “non-self” on the other hand. That’s all there is to it. Nothing mystical or supernatural (such as a primordial consciousness) is needed.
Paul Martin said:
I think all this borders on Sophism. The purpose of defining terms is not to learn anything, or discover any truth, since neither can be done that way. The only reasonable purpose of defining terms is to try to help us communicate. Once we understand the meaning of a term as used by one of us, we might then be able to begin to understand what the person is trying to say. When we finally understand that, we may have some criticisms or objections to the idea, but attacking or judging the definition doesn't help anything.
I agree with all but the first senstence. Why does this have anything to do with solipsism?
Though I agree that the
purpose of defining terms is not to arrive at truth, it is critically important to clearly define and understand terms if one wants to be sure (in one's own mind) that one has
arrived at truth in understanding the world - to conclude that one has arrived at a true understanding of the world based on poor, ambiguous, or sloppy definitions is a very dubious conclusion.
moving finger said:
This definition implies that an agent needs to possesses the ability to register and classify perceptual phenomena before it can claim to have a feeling of self, which I think entirely rational.
Paul Martin said:
According to your definition, I could program a computer to register and classify information from perceptual phenomena and then have it utter a claim to possessing a self. The machine/program would then qualify to having a self. I think it is perfectly legitimate to define 'self' that way, but I don't think it helps us understand the feeling of self that we experience. Of course you already know that we disagree on this and why.
That is precisely why it is important to define terms before debating them. I think you are assuming “self” entails “consciousness”. That is a natural confusion, since in normal daily life the only agents we come across who claim to possesses a self are conscious agents. But it does not follow that self necessarily entails consciousness.
moving finger said:
The agent’s belief that it “knows” (where I define knowledge as justified true belief) things about the world then simply arises quite naturally from this as a consequence of the agent’s registration and classification of perceptual phenomena.
Paul Martin said:
Here you tacitly assume that a machine, suitably programmed, can hold beliefs. I haven't heard (at least I don't remember) your definition of 'belief'. But to me, belief is a form of knowledge, which I think is primary, and it is IMHO not possible for a machine to know or believe.
You have it back to front. Belief is not a “form” of knowledge – because knowledge entails truth - I cannot know something (to be true) which is in fact false, whereas belief does not necessarily entail truth - I can certainly believe things to be true which are in fact false. Thus knowledge is a form of belief, not the other way around.
Paul Martin said:
I know that you hold belief to be primary, and knowledge to be "justified, true, belief" but that raises a few questions in my mind:
1. What is your definition of 'belief'?
For an agent to believe a proposition X is for that agent to accept that X is a true proposition. (This of course does not mean that X
is true).
Paul Martin said:
2. Who is the judge that has the job of "justifying" the true belief?
Some JTB definitions of knowledge qualify justification by referring to
evidential justification, which I think gives us a good clue to the meaning of justification. Justification is a tricky and subjective area – but justification is a necessary condition for a claim to knowledge (how can you claim to know some X is true unless you can justify, at least to yourself, the reasons
why you think X is true? – belief without evidential justification is
faith, and not knowledge). There is no absolute judge on justification, which is why knowledge is not absolute and depends on perspective (which is also why many people have problems understanding knowledge, and why so many Gettier-style examples have been proposed in an attempt to show that knowledge is not justified true belief – but they all fail when one takes into account the perspectival nature of knowledge). An agent’s belief is justified (from that agent’s perspective) when the agent has taken reasonable logical and rational steps to evaluate the validity of that belief, and the agent deems that it has sufficient
evidence in support of that belief (hence the reference to evidential justification). The agent may of course be mistaken in its assessment of the available evidence (no agent is infallible) – but this again simply underscores the fallible nature of knowledge.
Paul Martin said:
3. What is the criterion of truth that the judge applies to the belief?
Are you asking “what is truth?”, or “how do we decide what is true?”? At the end of the day, we are all fallible agents dependent on our beliefs. Nobody has access to absolutely certain knowledge (of truth and falsity) of the world, everything we think we know of the world is built upon our premises, and infallible (certain) knowledge of the external world is an impossible goal. An agent may have a justified belief that X, but if X is false then the agent does not possesses knowledge. One cannot possesses “false knowledge” about something – if the agent believes that it knows X to be true, but X is in fact false, then the agent does not “know something which is false”, rather it is simply mistaken in its belief that it knows X to be true.
Best Regards