if all observers are directly observing the same facts in the external world, then why do different observers make different judgements about the moment when one fact changes into a different fact. — RussellA
For the Direct Realist, the world we see around us is the real world itself. — RussellA
How does phantom limb syndrome work? — Michael
In fact we're trying to do exactly that to enable the blind to see. — Michael
I'm just baffled by the claim that seeing colours and shapes does not require anything outside the head.
— creativesoul
Does feeling pain require something outside the head? — Michael
Does it require having seen red before?
— creativesoul
And really it can only be reports of having seen red, I'd think, which is the application of a concept requiring language. — plaque flag
A red colour occurs when the appropriate areas of the occipital lobe are activated. — Michael
Just look at perception from a purely biological perspective. Electromagnetic radiation stimulates the rods and cones in the eyes. This sends signals to the occipital lobe which processes visual information, which is then sent to the temporal lobe where the visual information is processed into memory and to the frontal lobe where the visual information is processed into intellectual reasoning and decision-making.
Now what happens if we ignore the eyes entirely and find some other means to activate the occipital lobe, such as with cortical implants or the ordinary case of dreaming? I would say that the subject undergoes a conscious experience. And I would say that their conscious experience is one of visual imagery, such as shapes and colours. Seeing shapes and colours does not require electromagnetic radiation stimulating the rods and cones in the eyes (or an apple to reflect said light). Seeing shapes and colours only requires the activation of the appropriate parts of the cerebral cortex.
Given that seeing shapes and colours only requires the activation of the appropriate parts of the cerebral cortex, regardless of what triggers it, it's understandable why one would argue that the shapes and colours we see are "in the head" and not properties of apples. Seeing shapes and colours is no different in principle to feeling pain or hot or cold. — Michael
Disappointing ending to the Fox News trial. Yes, Murdoch has to shell out $700 million and eat a certain amount of crow, but the cast of clowns that spew lies and pollute the electorate don’t have to own up to their bullshit on their own stations or in the witness box. Still, it’s something. — Wayfarer
You have no way to assess how the construction of your own CNS compares to the source of the stimulus. — frank
It's the situations when someone holds false belief unbeknownst to themselves that the practice is found lacking, because it is during these times that the person cannot even tell you what they believe. It is impossible to knowingly hold false belief, and/or be mistaken.
— creativesoul
Yes, quite so. I think that these cases are one kind of embedded belief, in that we (but not everyone) think that beliefs are also appropriately attributed to animals that don't have language. For the record, my belief (!) is that beliefs are reasons for doing something, and are essential to the language practice of attributing rationale to certain actions. One art of this is that we find that sometimes people act as if p were true when it isn't. So if a rational agent acts as if that piece of cloth were a cow, I believe that agent believes it is a cow. Another part is that sometimes they act without taking into account some p that is clearly relevant, and it can be the best explanation that they do not believe that p. I think that "know" does the same job, with the addition that p is true. This contributes to the language practice of passing on information. It may all sound a bit wacky, but I find it very satisfying. — Ludwig V
The definition of terms is an interesting case. Kant differentiates between a priori concepts and arbitrary ones, which I take him to mean: technical terms (set aside by Jamal; referred to as “stipulated” by @Banno). He says they are ones (conceptions) that we create, which (unlike the other kinds of concepts) we can define; he says: however we choose, as we created them (which Kant excelled at). — Antony Nickles
Is “define your terms!” always or often or ever a legitimate imperative? — Jamal
Consciousness is meaningful experience.
— creativesoul
Meaning is neither physical nor non physical, internal nor external, etc.
— creativesoul
Consciousness is neither physical nor nonphysical? Are you saying ontology doesn't apply to consciousness? — frank
I feel that there's an ontological idea going on that there must be some object that is believed, just as there's a feeling that there must be some object that is true or false. It seems pure assumption to me and I find it annoying. But I don't pretend that I'm clear about it. — Ludwig V
I don't have a list of the interesting words. I seldom get much beyond know, believe, think, say, assert, but I would include suppose, imagine, fear, hope, wonder (both that.. and whether... and why... ). I'm sure you could go on. — Ludwig V
Would you argue that it isn't possible to reduce our theories of consciousness to physics? — frank
We should approach all topics available for scientific inquiry as if the goal is further reduction to physics. — frank
You're right. I'm sorry. — Ludwig V
First, I don't understand what you mean by "accounting practice" or "malpractice" in this context. You seem to think that philosophy is a kind of accountancy. Perhaps it is, in some ways, but it seems clearly different in other ways. — Ludwig V
Second, after our exchange, I decided that it was simpler not to talk about propositions in this context, but simply about beliefs. That way, the amount of confusion in the discussion might be reduced. — Ludwig V
This involved accepting that "propositional attitude" was not a helpful way of describing the group of verbs that I was interested in. — Ludwig V
Does that help? — Ludwig V
It’s not unusual to say “we both believe that John shouldn’t marry Jane, but for different reasons.”
Max believes that John shouldn’t marry Jane because he believes that Jane is a horrible person.
Jessica believes that John shouldn’t marry Jane because she believes that marriage is a terrible practice.
They both believe that John shouldn’t marry Jane.
It’s perfectly appropriate to distinguish beliefs from the reasons for having them. It’s absurd to respond to the above by saying that neither Max nor Jessica believe that John shouldn’t marry Jane. — Michael
This problem was devised by Jonathan Vogel.
1. Someone (call him Al) has parked his car on Avenue A (out of sight now) half an hour ago. Everything is normal, the car is still there, Al has a good memory. Does he know where his car is?
2. Every day, a certain percentage of cars gets stolen. Does Al know, right now, that his car has not been stolen and driven away since he parked it?
3. Meanwhile, in a parallel universe with a similar crime rate, Betty has parked her car on Avenue B half an hour ago. Betty is cognitively very similar to Al (just as good a memory, just as much confidence about the location of her car). Her car, unfortunately, was stolen and driven away. Does Betty, who believes that her car is on Avenue B where she parked it, know that her car is on Avenue B?
4. Having answered all three questions, would you like to revise your answer to any of them?
5. Why? — Ludwig V
I was specifying a belief that I think Gettier’s practice shows that he holds. Yes, it does hark back to atomic propositions. — Ludwig V
I don't like "propositional attitude" much either. For me, it is a useful classification that groups together a number of different verbs that share a grammatical feature, that they are require a clause in what grammarians call “indirect speech”. Many, if not all, of these verbs are cognitive and hence of interest to philosophy. I wouldn’t have any objection to using “cognitive”, so long as other people would understand what I mean. — Ludwig V
I would like to express the point about "language-less" belief by saying that a proposition is (usually) an expression of a belief, but not necessarily the form of expression used by the believer. Actions, in which the belief is attributed as a reason for the action, are another way of expressing belief. Beliefs are reasons for action, if you like; and since that formulation includes speech-acts, it seems general enough to cover everything it needs to.
But that doesn’t really explain the concept. The core of it is a most the useful property. Without belief, there is no coherent way to say that someone acted for a reason but the reason is false. In other words, attributing beliefs enables the speaker to express an assessment of the truth or otherwise of the belief. — Ludwig V
Trying to work out a way of expressing where I think we have got to, I have to start from my understanding of what the standard use of “proposition” amounts to. A proposition, on my account, is a sentence with its use in a context. This implies that each proposition comes entangled in a cloud of other propositions which are essential to understanding it. This includes, but is not limited to, its truth-conditions and its truth-maker (if I may use that term). An attribution of belief includes a proposition but locates it in a specialized context which requires special treatment. — Ludwig V
...each observation of an object of sense is particular
— Janus
The quote directly above serves as prima facie evidence supporting the charge that you're using unnecessarily complex language. Furthermore, such usage serves only to add unnecessary confusion. This could be demonstrated a number of different ways. I'll stick with one, for brevity's sake.
I'm assuming that a tree counts as "an object of sense". So, an observation of a tree would count as an observation of 'an object of sense'. But what sense does that make?
I mean, when we talk about one thing being "of" another, there is some sort of relation between the two. When we talk about an object of steel, there are no meaningful issues regarding the sensibility of our language use. We all know what counts as an object of steel. Steel cars, for example. Steel knives. Steel wheels. The same easily understood sensibility holds good for objects of brass, paper, plastic, etc. An object of steel is a something consisting of steel. An object of brass is something consisting of brass. An object of paper is something consisting of paper. But what sense does it make to talk about "objects of sense"?
A tree does not consist of sense. — creativesoul
You haven't identified what "other stuff" I said and precisely what parts you disagree with. — Janus