1
   

An electron is a posit?

 
 
Emil
 
  1  
Reply Mon 15 Feb, 2010 12:29 pm
@kennethamy,
kennethamy;128556 wrote:
But asking these questions, doesn't show that the hypothesis that we can have all the evidence we have, and there is no external world is contradictory (or incoherent- whatever that means).


"incoherent" seems to be interchangeable with "contradictory".

Yes, I agree that these questions and the considerations behind them do not show that all descriptions of situations where we have all the same evidence but there is no external world. However no such description have been given in this thread or anywhere else that I have seen.

Quote:
There are problems with skepticism about the external world, but I think that the problems lie with arguments like the argument from illusion and the rest. I don't believe there is a "short way" with this issue by showing there is something self-contradictory about the hypothesis. I think the various arguments have to be examined, and their assumptions exposed.


Ok. I'm inclined to think that it may be arguable that all such descriptions are contradictory.
0 Replies
 
Scottydamion
 
  1  
Reply Mon 15 Feb, 2010 12:37 pm
@Zetherin,
Zetherin;128561 wrote:
If you doubt everything, always, how can you advance in this knowledge pursuit? A moment must come when you admit that something is true, and believe it true until it is proven false. Why should we doubt things we believe true just because they might not be true? That seems utterly insane! Smart questioning is preferred over mindless questioning.


You don't have to claim they are true, only that they make sense to you. I am merely suggesting the claim that they "make sense" be considered an assumption.

I work off of the idea of consistency to define what is likely true, but I never claim truth unless talking about something arbitrary like correct syntax or definitions. If consistency can be shown between a cause and effect, and the link between cause and effect can be shown likely, then that is something I see as a likely truth. The pursuit of a system that tests for these is something to pursue and is something I think we have a pretty good grasp on in the scientific age. One does not have to claim truth to claim likelihood, because likelihood admits some level of subjectivity, if only a little!
0 Replies
 
Emil
 
  1  
Reply Mon 15 Feb, 2010 12:45 pm
@Zetherin,
Zetherin;128546 wrote:
This is what I'm saying makes no sense to me. First, what is this strictly speaking direct sense (again contrasted with how we normally perceive the world)? And second, why does the fact that we experience the world with our senses mean that we are not experiencing the world in a strictly speaking direct sense?


Did you read the R. text I linked to? He explains it in there and I have explained it above. It is always possible to demand more explanations.

We don't normally perceive the world directly. We have certain sensations and then we infer that they are from certain objects that are in the world. Babies seem to have to learn this as they grow up. They learn that things continue to exist even though they may stop causing us sensations for a while (e.g. because they are out of our visual field).

Quote:
In other words, this strictly speaking direct sense (which has been called several different things in this thread and elsewhere) seems made up, in order to support these claims that we aren't perceiving the true external world. It is as if these people have conjured some sort of ethereal realm where no observers are present, and in this realm the true properties exist, untainted or manipulated by perspective!
Made up? Hahaha. As a sort of wishful thinking? That's an absurdly improbable claim. What kind of desire could possibly fuel a such wishful thinking? No, it is of course not a case of wishful thinking but philosophical thinking/reasoning.

Since I agree with R. about this and so does Ken, and I do not believe in some ethereal realm (whatever that is), then not everyone that believes in sense-data believes in ethereal realms, whatever that means.

What would it even mean to deny the sense-data thesis? Suppose we deny it, what does it even mean to experience a chair? It does not mean anything. Chairs are not the kind of thing that can be meaningfully said to be experienced (in the strict sense, for surely there are other and more broad uses of the word "experience"), sensations are. Sensations are exactly the sort of thing which we are capable of experiencing, that is, after all, what a sensation is.

And yes it has many names. Kant has a name for the things/objects that cause our sensations, things-in-themselves (ding-an-sich). (Ken please confirm this as I have not read Kant yet.) These things are not directly perceivable. But that does not mean, I think, that we cannot know anything about them.
Consider as an analogy the same thing this thread is about, electrons. They are not directly perceivable (though this is in another sense, in this sense a thing is directly perceivable if it is perceivable by the unaided senses, thus without microscopes and telescopes, radars etc.).

Quote:
Maybe he just means what is mind-dependent.
Which means...?

---------- Post added 02-15-2010 at 07:47 PM ----------

Scottydamion;128558 wrote:
"No, stop that." lol

I do not end with the doubt however. "the moment we do we've gone mad, religious, or poetic." I see the opposite! Or at least I see doubt as a great cure for the "rationale" of the mad, religious, or poetic (leaving poetic in there just for kicks). I think the pursuit of knowledge starts with doubting all things, not that it ends there.


No one doubts everything, even though they may think they do. Neither did Descartes. It is not humanly possible to doubt everything, we cannot do it.
Zetherin
 
  1  
Reply Mon 15 Feb, 2010 12:58 pm
@fast,
Emil wrote:
What would it even mean to deny the sense-data thesis? Suppose we deny it, what does it even mean to experience a chair? It does not mean anything. Chairs are not the kind of thing that can be meaningfully said to be experienced (in the strict sense, for surely there are other and more broad uses of the word "experience"), sensations are. Sensations are exactly the sort of thing which we are capable of experiencing, that is, after all, what a sensation is.


Yes, what we experience are the sensations, but we are having the sensations because there is something real that we are perceiving.

What I am against is not that we perceive with our senses. Clearly we do. What I am against is this gap between the external world and our perceptions of the external world - as if they are completely divorced and our sensations cannot be true reflections of the external world. Again, the fact that we perceive the world as we do, is no reason to think we are not experiencing the world directly.

Quote:

And yes it has many names. Kant has a name for the things/objects that cause our sensations, things-in-themselves



But there is no reason to think we aren't experiencing the 'true' things-in-themselves, is all I'm saying. I think our sensations can provide accurate, true information (they can most certainly give false information too, of course) about things.
Scottydamion
 
  1  
Reply Mon 15 Feb, 2010 01:11 pm
@Emil,
Emil;128568 wrote:
No one doubts everything, even though they may think they do. Neither did Descartes. It is not humanly possible to doubt everything, we cannot do it.


Then trying to doubt all things is the start. I think it is important to give oneself the opportunity to break down beliefs one has been taught before rebuilding one's foundation.

At the very least the attempt would be a good cure for some of the strong belief systems out there that don't bother trying too hard to back themselves up.
kennethamy
 
  1  
Reply Mon 15 Feb, 2010 01:39 pm
@Zetherin,
Zetherin;128561 wrote:
If you doubt everything, always, how can you advance in this knowledge pursuit? A moment must come when you admit that something is true, and believe it true until it is proven false. Why should we doubt things we believe true just because they might not be true? That seems utterly insane! Smart questioning is preferred over mindless questioning.


As Peirce pointed out, you cannot doubt everything at once, since in order to doubt, you have to believe something else. For instance, if I doubt there is a tree in front of me, that is because I believe that my senses of deceiving me.
0 Replies
 
Reconstructo
 
  1  
Reply Mon 15 Feb, 2010 02:07 pm
@fast,
fast;128465 wrote:
I am confident that we are able to directly observe things. If I look into a mirror and see the reflection of a man pulling the trigger of a gun, then I did not directly observe (but rather indirectly observed) a man pulling the trigger of a gun, but if I look at the man as he pulls the trigger of a gun, then it's not false when I say "yes" to the question when he asks if I directly observed the man pull the gun's trigger.


In one sense of the world "directly" I agree. But in another sense, I cannot. It takes time for light waves to travel to your eye, and then for your brain to arrange a mental picture from these light waves and interpret this picture conceptually. Your brain is locked in the dark of the skull. An observer with different previous experiences would experience and interpret this situation differently, likely at a different speed. We see the light from the Sun when it's already eight seconds old. We conceive of this sun, some of us, as a large nuclear reaction whose energy sustains our planet. This conception is added to sensation by human discourse. This human discourse is part of our concrete or total experience of the "Sun."
kennethamy
 
  1  
Reply Mon 15 Feb, 2010 02:12 pm
@Reconstructo,
Reconstructo;128597 wrote:
In one sense of the world "directly" I agree. But in another sense, I cannot. It takes time for light waves to travel to your eye, and then for your brain to arrange a mental picture from these light waves and interpret this picture conceptually. Your brain is locked in the dark of the skull. An observer with different previous experiences would experience and interpret this situation differently, likely at a different speed. We see the light from the Sun when it's already eight seconds old. We conceive of this sun, some of us, as a large nuclear reaction whose energy sustains our planet. This conception is added to sensation by human discourse. This human discourse is part of our concrete or total experience of the "Sun."


You are supposing that what we see must be contemporaneous with our seeing of it. But, apparently, that is not true.
Reconstructo
 
  1  
Reply Mon 15 Feb, 2010 02:17 pm
@kennethamy,
kennethamy;128602 wrote:
You are supposing that what we see must be contemporaneous with our seeing of it. But, apparently, that is not true.


How is apparently not true? Is that how you see it, at this moment? I'm well aware of scientific abstractions to the contrary. They are useful but philosophically lazy. Common sense is often common prejudice.
Scottydamion
 
  1  
Reply Mon 15 Feb, 2010 02:21 pm
@Reconstructo,
Reconstructo;128597 wrote:
In one sense of the world "directly" I agree. But in another sense, I cannot. It takes time for light waves to travel to your eye, and then for your brain to arrange a mental picture from these light waves and interpret this picture conceptually. Your brain is locked in the dark of the skull. An observer with different previous experiences would experience and interpret this situation differently, likely at a different speed. We see the light from the Sun when it's already eight seconds old. We conceive of this sun, some of us, as a large nuclear reaction whose energy sustains our planet. This conception is added to sensation by human discourse. This human discourse is part of our concrete or total experience of the "Sun."


Yes and not only this but when you see someone you are seeing the light that reflects from them, in a sense like a mirror. So in a sense we never "directly" observe someone.
Reconstructo
 
  1  
Reply Mon 15 Feb, 2010 02:34 pm
@Scottydamion,
Scottydamion;128605 wrote:
Yes and not only this but when you see someone you are seeing the light that reflects from them, in a sense like a mirror. So in a sense we never "directly" observe someone.


Good point. We see light that is filtered by a bounce (which gives different materials their different colors). And, the notion of qualia!

We have no reason to think that qualia exist in the object. I would say that we have reason enough to assume that qualia are created by the brain.
Qualia - Wikipedia, the free encyclopedia
0 Replies
 
kennethamy
 
  1  
Reply Mon 15 Feb, 2010 02:37 pm
@Reconstructo,
Reconstructo;128604 wrote:
How is apparently not true? Is that how you see it, at this moment? I'm well aware of scientific abstractions to the contrary. They are useful but philosophically lazy. Common sense is often common prejudice.



Well, because we see stars even when what we actually see is not contemporary with the stars we see. Why do you think it is true (or must be true)?
Emil
 
  1  
Reply Mon 15 Feb, 2010 02:50 pm
@Zetherin,
Zetherin;128574 wrote:
Yes, what we experience are the sensations, but we are having the sensations because there is something real that we are perceiving.


I agree.

Quote:
What I am against is not that we perceive with our senses. Clearly we do. What I am against is this gap between the external world and our perceptions of the external world - as if they are completely divorced and our sensations cannot be true reflections of the external world. Again, the fact that we perceive the world as we do, is no reason to think we are not experiencing the world directly.


That we are not directly perceiving the world means that it are not the things themselves that we experience/perceive but sensations.

I don't know what to make of your metaphors. What does it even mean to say that our sensations and the world are divorced? I have no idea what that means.

Who is claiming that they cannot be 'true reflections' (which means...?) of the world? Certainly not R., I or Ken as we are all realists. We claim that sensations do 'reflect' what is in the world.

But we are not experiencing the world (as in material objects) directly, we are perceiving sensations. We are unable to directly experience anything but sensations.

Quote:
But there is no reason to think we aren't experiencing the 'true' things-in-themselves, is all I'm saying. I think our sensations can provide accurate, true information (they can most certainly give false information too, of course) about things.
Yes, and? I agree and so does Ken and so did R. What is the problem? I cannot seem to discover what it really is that you are disagreeing about.
0 Replies
 
Reconstructo
 
  1  
Reply Mon 15 Feb, 2010 02:50 pm
@kennethamy,
kennethamy;128622 wrote:
Well, because we see stars even when what we actually see is not contemporary with the stars we see. Why do you think it is true (or must be true)?


"Stars " are a human concept. An alien might perceive the nonhuman causes for our human conception in a different way. I cannot truly conceive of a species-independent reality just as I cannot truly conceive of a reality devoid of conscious (as such a notion itself requires consciousness.)
Emil
 
  1  
Reply Mon 15 Feb, 2010 02:51 pm
@Scottydamion,
Scottydamion;128575 wrote:
Then trying to doubt all things is the start. I think it is important to give oneself the opportunity to break down beliefs one has been taught before rebuilding one's foundation.

At the very least the attempt would be a good cure for some of the strong belief systems out there that don't bother trying too hard to back themselves up.


Sure, maybe you should read Quine and others' The Web of Belief. I think you will like it and it is a quick read. (I have a pdf, just pm.)
0 Replies
 
jeeprs
 
  1  
Reply Mon 15 Feb, 2010 04:12 pm
@fast,
By way of aside, I recall a comment somewhere that Western philosophy constantly vacilates between materialism and idealism. Materialism is the attempt to ground ourselves in 'what is really there', to escape from what is seen as the interminable and unsolvable problems of metaphysics and consider only what is truly objective. But then the counter-argument says 'wait a minute, everything we perceive in the material world is somehow defined by our perception of it' and metaphysics makes its entry again. Sooner or later it is realised that the arguments this entails are interminable and we retreat back to materialism. (Sound familiar?)

I think phenomenology has tried to terminate this impasse by incorporating the awareness of the experiencing subject in the exploration of the nature of cognition. This might sound like 'so what, isn't that just cognitive science'. But the approach begun by phenomonenology is considerably more subtle than that. Husserl for example said that
Quote:
any phenomenological description proper is to be performed from a first person point of view, so as to ensure that the respective item is described exactly as is experienced, or intended, by the subject.
Source

It seems to me a more mature, or at least an alternative, approach to the subject.
0 Replies
 
Krumple
 
  1  
Reply Mon 15 Feb, 2010 04:18 pm
@Scottydamion,
Scottydamion;128468 wrote:
What happens when you cause one photon or electron to be emmited at a time? Does it spread out in all directions? Or does it hit the detector on the other side of the room?

You should look up the "double-split experiment". It will close the gaps in your reasoning.


Um, I think you might need to look it up. I know the experiment quite well. Let me fill you in on something. When we use small particles for the experiment like atoms. You know what happens? It appears as if the particle goes through both slits at the same time. The only way it can do that is if it covers both slits equally. A particle can not do that unless it is a bubble.

"It's the wave nature of electrons that allows them to act in a correlated way in a hydrogen molecule," says Thorsten Weber of the Chemical Sciences Division, another of the experiment's leading researchers. "When two particles are part of the same quantum system, their interactions are not restricted to electromagnetism, for example, or gravity. They also possess quantum coherence -- they share information about their states nonlocally, even when separated by arbitrary distances."

The only way they could behave this way is through my theory that they stretch over space as I have previously stated.

"The wave nature of the electron means that in a double slit experiment even a single electron is capable of interfering with itself. Double slit experiments with photoionized hydrogen molecules at first showed only the self-interference patterns of the fast electrons, their waves bouncing off both protons, with little action from the slow electrons."

Interfering with itself. Hmm the only way this can happen is if they were like bubbles. What happens is the bubble gets distorted bending back and connecting with itself causing kinetic exchange or a snap back. Sort of like if you punch yourself in your own face.
jeeprs
 
  1  
Reply Mon 15 Feb, 2010 04:26 pm
@Krumple,
Krumple;128660 wrote:
Um, I think you might need to look it up. I know the experiment quite well. Let me fill you in on something. When we use small particles for the experiment like atoms. You know what happens? It appears as if the particle goes through both slits at the same time. The only way it can do that is if it covers both slits equally. A particle can not do that unless it is a bubble.

"It's the wave nature of electrons that allows them to act in a correlated way in a hydrogen molecule," says Thorsten Weber of the Chemical Sciences Division, another of the experiment's leading researchers. "When two particles are part of the same quantum system, their interactions are not restricted to electromagnetism, for example, or gravity. They also possess quantum coherence -- they share information about their states nonlocally, even when separated by arbitrary distances."

The only way they could behave this way is through my theory that they stretch over space as I have previously stated.


Which raises the original question again: do electrons exist, or are they a posit? If they are 'a bubble', what is the bubble made of? Because an actual bubble is not irreducible. It occupies space and is created and destroyed.

When someone says - even a Scientist! - that information can be shared non-locally, this actually violates Newtonian principles, does it not? Wasn't it exactly this which Einstein refused to believe? So you can say it casually, but it still doesn't solve the question as to whether electrons exist, or, if they do, what this means for our conception of the word 'exist'.
fast
 
  1  
Reply Mon 15 Feb, 2010 04:28 pm
@Reconstructo,
Reconstructo;128597 wrote:
In one sense of the world "directly" I agree. But in another sense, I cannot. It takes time for light waves to travel to your eye, and then for your brain to arrange a mental picture from these light waves and interpret this picture conceptually. Your brain is locked in the dark of the skull. An observer with different previous experiences would experience and interpret this situation differently, likely at a different speed. We see the light from the Sun when it's already eight seconds old. We conceive of this sun, some of us, as a large nuclear reaction whose energy sustains our planet. This conception is added to sensation by human discourse. This human discourse is part of our concrete or total experience of the "Sun."
I posted this on another thread, but it should do as well here:

First, we should endeavor to make sure we do not confuse ourselves with the organs that are within us. Just as there is a difference between me and my heart, so too is there a difference between me and my brain.

When I look at the cat through a mirror, I am indirectly observing the cat, but when I look at the cat itself, I am directly observing the cat, so I can directly and indirectly observe the cat.

My brain directly senses my percept of the cat, but my brain cannot directly sense the cat; it can only indirectly sense the cat.

It's faulty to say that I do not directly sense the cat (and only indirectly sense the cat) just because my brain does not directly sense the cat (and only indirectly senses the cat).
Krumple
 
  1  
Reply Mon 15 Feb, 2010 04:39 pm
@jeeprs,
jeeprs;128665 wrote:
Which raises the original question again: do electrons exist, or are they a posit? If they are 'a bubble', what is the bubble made of? Because an actual bubble is not irreducible. It occupies space and is created and destroyed.


Well the problem here is you are using a classic definition of bubble where as I am just using it to state the visual shape or make up, however the electron does not have the traits of a bubble. The mass of the electron is spread out over the surface of the bubble. The surface is just made out of a slow form energy that can stretch without breaking. However it doesn't actually need to stretch very far so perhaps in theory it would be possible to "burst" the bubble. What is inside the bubble? Nothing but if you want to expand the bubble, you will have to provide energy to inflate it. However you are not actually adding anything to it like you would a balloon or classic bubble. Instead the energy gets displaced over the surface causing it to stretch to accommodate the energy input.

jeeprs;128665 wrote:

When someone says - even a Scientist! - that information can be shared non-locally, this actually violates Newtonian principles, does it not?


Yes, because information can not travel faster than light, according to general relativity, nothing can. I am not in conflict with information because with my theory the electron is stretched over space so while one part of the electron is at one end, it's other parts are at the other end completely connected and not requiring any information gab or even transfer of information. It does not even need any information so it doesn't violate any known principals.

jeeprs;128665 wrote:

Wasn't it exactly this which Einstein refused to believe? So you can say it casually, but it still doesn't solve the question as to whether electrons exist, or, if they do, what this means for our conception of the word 'exist'.


They exist as much as a blind man knows a car exists.
 

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