nongrata
Aug 15, 2005, 01:37 AM
Where is the locus of reality? Is it internal or
external?
I would be keen to hear what YOUR thoughts are on this, as it seems most posed with this question love to quote philosophers new and old.
It seems to me it has to include both interior and exterior but I would lean
towards the internal as the ultimate locus. How would we be able to test this? Could we use sincerity and truth as a test?
Im not sure and need to give it more thought.
rhymer
Aug 15, 2005, 02:17 AM
The first thing we need to determine is what 'form' of reality you are talking about.
I've just found a few definitions and they cover BOTH internal and external concepts.
All of your experiences that determine how things appear to you. INTERNAL
The state of being actual or real. INTERNAL and EXTERNAL
The state of the world as it really is rather than as you might want it to be. Mainly EXTERNAL
The quality possessed by something that is real. Mainly EXTERNAL
Hey Hey
Sep 22, 2005, 11:55 AM
if there was a reality (of any type) we could not "see" it due to Heisenberg uncertainty.
Rick
Sep 22, 2005, 02:37 PM
Quantum uncertainty only applies to the single particle scale. Aggregates, which comprise our sensory experience, are indeed seen.
Trip like I do
Sep 22, 2005, 04:45 PM
Its a matter of collapsing the wave-function!
An observer-created reality, where through the direct act of objective observation reality becomes established.
....and where thoughts are effacious.
Hey Hey
Sep 23, 2005, 03:35 AM
Uncertainty About the Uncertainty Principle
Can't anybody get Heisenberg's big idea right?
By Jim Holt
Posted Wednesday, March 6, 2002, at 12:54 PM PT
In the Routledge Encyclopedia of Philosophy, "Heisenberg, Werner" lies between "Heidegger, Martin" and "Hell." That is precisely where he belongs. Heisenberg, one of the inventors of quantum mechanics, was the leader of Hitler's atomic bomb project during World War II. After the war, he claimed that he had deliberately sabotaged the Nazi bomb effort. Many believed him. But last month, his protestations of innocence (indeed, valor) were revealed to have been almost certainly a lie. Letters written by the Danish physicist Niels Bohr, released to the public for the first time, make it pretty clear that Heisenberg was doing everything he could to produce a nuclear weapon for the Third Reich. His failure was due not to covert heroism but to incompetence.
Heisenberg (1901-76) was a wonderful physicist. At the age of 24, in a rapture on a rock overlooking the North Sea, he had an insight that revolutionized our understanding of the subatomic world. Two years later he announced, in what is probably the most quoted paper in the history of physics, his "uncertainty principle." Today, even the greatest physicists admit to bafflement at Heisenberg's mathematical non sequiturs and leaps of logic. "I have tried several times to read [one of his early papers]," confesses the Nobel laureate Steven Weinberg, "and although I think I understand quantum mechanics, I have never understood Heisenberg's motivations for the mathematical steps ..."
Though he may have been a magician as a theorist, Heisenberg was something of a dunce at applied physics. His doctoral exam in 1923 was a disaster. Asked about it many years later by Thomas Kuhn, he gave the following account (his examiner was the experimental physicist Wilhelm Wien): "Wein asked me ... about the Fabry-Perot interferometer's resolving power ... and I'd never studied that. ... Then he got annoyed and asked about a microscope's resolving power. I didn't know that. He asked me about a telescope's resolving power, and I didn't know that either. ... So he asked me how a lead storage battery operates and I didn't know that. ... I am not sure whether he wanted to fail me ..." When, during the war, Heisenberg tried to determine how much fissionable uranium would be necessary for a bomb, he botched the calculation and came up with the impossible figure of several tons. (The Hiroshima bomb required only 56 kilograms.) This is not the kind of scientist you want to put in charge of a weapons project.
Those who, prior to last month's revelation about Heisenberg, wished to stress the supposed murkiness of his wartime motives often reached for a metaphor from his physics: the uncertainty principle. Michael Frayn did it in Copenhagen, his play about a mysterious 1941 encounter between Heisenberg and Bohr. Thomas Powers did it in Heisenberg's War, the 1993 book that defended Heisenberg's claim to have destroyed the Nazi bomb project from within. David C. Cassidy did it in the very title of his 1991 biography of Heisenberg, Uncertainty. They should all have known better.
And they're hardly alone. No scientific idea from the last century is more fetishized, abused, and misunderstood—by the vulgar and the learned alike—than Heisenberg's uncertainty principle. The principle doesn't say anything about how precisely any particular thing can be known. It does say that some pairs of properties are linked in such a way that they cannot both be measured precisely at the same time. In physics, these pairs are called "canonically conjugate variables." One such pair is position and momentum: The more precisely you locate the position of a particle, the less you know about its momentum (and vice versa). Another is time and energy: The more precisely you know the time span in which something occurred, the less you know about the energy involved (and vice versa).
How could this principle of physics be applied to Heisenberg the man? In the postscript to Copenhagen, Frayn writes, "There is not one single thought or intention of any sort that can ever be precisely established." Well, maybe; but the uncertainty principle applies to pairs of properties. In Heisenberg's case, the relevant pair is motivation and competence. How willing was he to help Hitler? How competent was he to produce an atomic bomb? But notice that there is a positive relationship between our knowledge of one and of the other: The more certain we become that Heisenberg was willing to serve the Third Reich, the more certain we become that he was incompetent to produce a bomb. This is not the uncertainty principle, but its exact opposite. Evidently, knavishness and incompetence are not canonically conjugate variables.
A more banal misuse of Heisenberg's principle can be found in the social sciences. There the principle is often taken to mean that the very act of observing a phenomenon inevitably alters that phenomenon in some way; that is why, say, Margaret Mead could never know the sexual mores of the Samoans—her very presence on the island distorted what she was there to observe. Postmodern theorists (like Stanley Aronowitz) invoke the uncertainty principle as proof of the unstable hermeneutics of subject-object relations, arguing that it undermines science's claim to objectivity.
Even physicists show considerable uncertainty about what the uncertainty principle really means. Dozens of different interpretations have been proposed over the years. Some locate the uncertainty in some inherent clumsiness in the act of measurement itself. How do you learn the position of an electron with great accuracy? By bouncing a photon off of it. But since the electron is quite tiny, the photon must have a comparably tiny wavelength and thus a very great energy (since wavelength and energy are inversely related). So, the photon will impart a random "kick" to the electron that will affect its momentum in an unknowable way. Heisenberg himself opted for this kind of interpretation, which is called "epistemic," since it places the burden of uncertainty on the knower. Niels Bohr, by contrast, plumped for an "ontic" interpretation, attributing the uncertainty not to the knower and his measurement apparatus but to reality itself. Familiar concepts like "position" and "momentum" simply do not apply at the quantum level, Bohr argued. The contemporary physicist Roger Penrose has declared himself unhappy with the whole gamut of interpretations of Heisenberg's principle, while admitting he has nothing better to replace them with just now.
From a mathematical point of view, there is nothing the least bit problematic about Heisenberg's uncertainty principle. If you try to translate the sentence, "Electron e is exactly at position x with a momentum of exactly p," into the formal language of quantum theory, you get ungrammatical gibberish, just as you would if you tried to translate "the round square" into the language of geometry. It is only when you try to make sense of the principle philosophically that the waters begin to rise up around you. Years ago, the Princeton physicist John Wheeler began to wonder whether Heisenberg's uncertainty principle might not have some deep connection to Gödel's incompleteness theorem (probably the second most misunderstood discovery of the 20th century). Both, after all, seem to place inherent limits on what it is possible to know. But such speculation can be dangerous. "Well, one day [Wheeler recounts] I was at the Institute of Advanced Study, and I went to Gödel's office, and there was Gödel. It was winter and Gödel had an electric heater and had his legs wrapped in a blanket. I said, 'Professor Gödel, what connection do you see between your incompleteness theorem and Heisenberg's uncertainty principle?' And Gödel got angry and threw me out of his office."
Jim Holt writes the "Egghead" column for Slate. He also writes for The New Yorker and the New York Times Magazine.
Hey Hey
Sep 23, 2005, 03:37 AM
Quantum Consciousness
Adam McLean ©
The hermetic tradition has long been concerned with the relationship between the inner world of our consciousness and the outer world of nature, between the microcosm and the macrocosm, the below and the above, the material and the spiritual, the centric and the peripheral. The hermetic world view held by such as Robert Fludd, pictured a great chain of being linking our inner spark of consciousness with all the facets of the Great World. There was a grand platonic metaphysical clockwork, as it were, through which our inner world was linked by means of a hierarchy of beings and planes to the highest unity of the Divine.
This view though comforting is philosophically unsound, and the developments in thought since the early 17th century have made such a hermetic world view untenable and philosophically naive. It is impossible to try to argue the case for such an hermetic metaphysics with anyone who has had a philosophical training, for they will quickly and mercilessly reveal deep philosophical contradictions in this world view.
So do we now have to abandon such a beautiful and spiritual world view and adopt the prevailing reductionist materialist conception of the world which has become accepted in the intellectual tradition of the West ?
I am not so sure. There still remains the problem of our consciousness and its relationship to our material form - the Mind / Brain problem. Behavioural psychologists such as Skinner tried to reduce this to one level - the material brain - by viewing the mental or consciousness events from the outside as being merely stimulus-response loops. This simplistic view works fine for basic reflex actions - "I itch therefore I scratch" - but dissolves into absurdity when applied to any real act of the creative intellect or artistic imagination. Skinner's determinism collapses when confronted with trying to explain the creative source of our consciousness revealing itself in an artist at work or a mathematician discovering through his thinking a new property of an abstract mathematical system. The psychologists' attempts to reduce the mind/brain problem to a merely material one of neurophysiology obviously failed. The idea that consciousness is merely a secretion or manifestation of a complex net of electrical impulses working within the mass of cells in our brain, is now discredited. The advocates of this view are strongly motivated by a desire to reduce the world to one level, to get rid of the necessity for "consciousness", "mind" or "spirit" as a real facet of the world.
This materialistic determinism in which everything in the world (including the phenomenon of consciousness) can be reduced to simple interactions on a physical/chemical level, belongs really to the nineteenth century scientific landscape. Nineteenth century science was founded upon a "Newtonian Absolute Physics" which provided a description of the world as an interplay of forces obeying immutable laws and following a predetermined pattern. This is the "billiard ball" view of the world - one in which, provided we are given the initial state of the system (the layout of the balls on the table, and the exact trajectory, momentum and other parameters of the cue ball, etc.) then theoretically the exact layout after each interaction can be precisely calculated to absolute precision. All could be reduced to the determinate interplay of matter obeying the immutable laws of physics. The concept of the "spiritual" was unnecessary, even "mind" was dispensable, and "God" of course had no place in this scheme of things.
This comfortably solid "Newtonian" world view of the materialists has however been entirely undermined by the new physics of the twentieth century, and in particular through Quantum Theory. Physicists investigating the properties of sub-atomic matter, found that the deterministic Newtonian absolutism broke down at the foundation level of matter. An element of probability had to be introduced into the physicists' calculations, and each sub-atomic event was in itself inherently unpredictable - one could only ascribe a probability to the outcome. The simple billiard ball model collapsed at the sub-atomic level. For if the billiard table was intended as a picture of a small region of space on the atomic scale and each ball was to be a particle (an electron, proton, or neutron, etc.), then physicists came to realise that this model could not represent reality on that level. For in Quantum theory one could not define the position and momentum of a particle both at the same moment. As soon as we establish the parameters of motion of a body its position is uncertain and can only be described mathematically as a wave of probability. Our billiard table dissolved into a fluid ever-moving undulating surface, with each ball at one moment focussed to a point then at another dissolving and spreading itself out over an area of the space of the table. Trying to play billiards at this sub-atomic level was rather difficult.
In the Quantum picture of the world, each individual event cannot be determined exactly, but has to be described by a wave of probability. There is a kind of polarity between the position and energy of any particle in which they cannot be simultaneously determined. This was not a failing of experimental method but a property of the kinds of mathematical structures that physicists have to use to describe this realm of the world. The famous equation of Quantum theory embodying Heisenberg's Uncertainty Principle is :
Planck's constant = (uncertainty in energy) x (uncertainty in position)
Thus if we try to fix the position of the particle (i.e. reduce the uncertainty in its position to a small factor) then as a consequence of this equation the uncertainty in the energy must increase to balance this, and therefore we cannot find a value for the energy of the particle simultaneous with fixing its position. Planck's constant being very small means that these factors only become dominant on the extremely small scale, that is within the realm of the atom.
So we see that the Quantum picture of reality has at its foundation a non-deterministic view of the fundamental building blocks of matter. Of course, when dealing with large masses of particles these quantum indeterminacies effectively cancel each other out, and physicists can determine and predict the state of large systems. Obviously planets, suns, galaxies being composed of large numbers of particles do not exhibit any uncertainty in their position and energies, for when we look at such large aggregates as a totality, the total quantum uncertainties of the system reduces to zero, and in respect to their large scale properties can effectively be treated as deterministic systems.
Thus on the large scale we can effectively apply a deterministic physics, but when we wish to look in detail at the properties of the sub-atomic realm, lying at the root and foundation of our world, we must enter a domain of quantum uncertainties and find the neat ordered picture dissolving into a sea of ever flowing forces that we cannot tie down or set into fixed patterns.
Some people when faced with this picture of reality find comfort in dismissing the quantum world as having little to do with the "real world" of appearances. We do not live within the sub-atomic level after all. However, it does spill out into our outer world. Most of the various electronic devices of the past decades rely on the quantum tunnelling effect in transistors and silicon chips. The revolution in quantum physics has begun to influence the life sciences, and biologists and botanists are beginning to come up against quantum events as the basis of living systems, in the structure of complex molecules in the living tissues and membranes of cells for example. When we look at the blue of the sky we are looking at a phenomenon only recently understood through quantum theory.
Although the Quantum picture of reality might seem strange indeed, I believe the picture it presents of the foundations of the material world, the ever flowing sea of forces metamorphosing and interacting through the medium of "virtual" or quantum messenger particles, has certain parallels with with nature of our consciousness.
I believe that if we try to examine the nature of our consciousness we will find at its basis it exhibits "quantum" like qualities. Seen from a distant, large scale and external perspective, we seem to be able to structure our consciousness in an exact and precise way, articulating thoughts and linking them together into long chains of arguments and intricate structures. Our consciousness can build complex images through its activity and seems to have all the qualities of predictability and solidity. The consciousness of a talented architect is capable of designing and holding within itself an image of large solid structures such as great cathedrals or public buildings. A mathematician is capable of inwardly picturing an abstract mathematical system, deriving its properties from a set of axioms. A solo cellist is able to hold the whole musical structure of a Elgar's Cello Concerto or Bach's Cello Suites in his or her consciousness when preparing for a performance.
In this sense our consciousness might appear as an ordered and deterministic structure, capable of behaving like and being explicable in the same terms as other large scale structures in the world. However, this is not so. For if we through introspection try to examine the way in which we are conscious, in a sense to look at the atoms of our consciousness, this regular structure disappears. Our consciousness does not actually work in such an ordered way. We only nurture an illusion if we try to hold to the view that our consciousness is at root an ordered deterministic structure. True, we can create the large scale designs of the architect, the abstract mathematical systems, a cello concerto, but anyone who has built such structures within their consciousness knows that this is not achieved by a linear deterministic route.
Our consciousness is at its root a maverick, ever moving, jumping from one perception, feeling, thought, to another. We can never hold it still or focus it at a point for long. Like the quantum nature of matter, the more we try to hold our consciousness to a fixed point, the greater the uncertainty in its energy will become. So when we focus and narrow our consciousness to a fixed centre, it is all the more likely to suddenly jump with a great rush of energy to some seemingly unrelated aspect of our inner life. We all have such experiences each moment of the day. As in our daily work we try to focus our mind upon some problem only to sudddenly experience a shift to some other domain in ourselves, another image or emotional current intrudes then vanishes again, like an ephemeral virtual particle in quantum theory.
Those who begin to work upon their consciousness through some kinds of meditative exercises will experience these quantum uncertainties in the field of consciousness in a strong way.
In treating our consciousness as if it were a digital computer or deterministic machine after the model of 19th century science, I believe we foster a limited and false view of our inner world. We must now take the step towards a quantum view of consciousness, recognising that at its base and root our consciousness behaves like the ever flowing sea of the sub-atomic world. The ancient hermeticists pictured consciousness as the "Inner Mercury". Those who have experienced the paradoxical way in which the metal Mercury is both dense and metallic and yet so elusive, flowing and breaking up into small globules, and just as easily coming together again, will see how perceptive the alchemists were of the inner nature of consciousness, in choosing this analogy. Educators who treat the consciousness of children as if it were a filing cabinet to be filled with ordered arrays of knowledge are hopelessly wrong.
We can I believe go a step further than this recognition of the quantum nature of consciousness, and see just how this overlays and links with the mind/brain problem. The great difficulties in developing a theory of the way in which consciousness/mind is embodied in the activity of the brain, has I believe arisen out of the erroneous attempt to press a deterministic view onto our brain activity. Skinner and the behaviourist psychologists attempted to picture the activity of the brain as a computer where each cell behaved as an input/output device or a complex flip/flop. They saw nerve cells with their axons (output fibres) and dendrites (input fibres) being linked together into complex networks. An electrical impulse travelling onto a dendrite made a cell 'fire' and send an impulse out along its axon so setting some other nerve cell into action. The resulting patterns of nerve impulses constituted a reflex action, an impulse to move a muscle, a thought, a feeling, an intuitive experience. All could be reduced to the behaviour of this web of axons and dendrites of the nerve cells.
This simplistic picture, of course, was insufficient to explain even the behaviour of creatures like worms with primitive nervous systems, and in recent years this approach has largely been abandoned as it is becoming recognised that these events on the membranes of nerve cells are often triggered by shifts in the energy levels of sub-atomic particles such as electrons. In fact, at the root of such interactions lie quantum events, and the activity of the brain must now be seen as reflecting these quantum events.
The brain can no longer be seen as a vast piece of organic clockwork, but as a subtle device amplifying quantum events. If we trace a nerve impulse down to its root, there lies a quantum uncertainty, a sea of probability. So just how is it that this sea of probability can cast up such ordered structures and systems as the conception of a cello concerto or abstract mathematical entities ? Perhaps here we may glimpse a way in which "spirit" can return into our physics.
The inner sea of quantum effects in our brain is in some way coupled to our ever flowing consciousness. When our consciousness focusses to a point, and we concentrate on some abstract problem or outer phenomenon, the physical events in our brain, the pattern of impulses, shifts in some ordered way. In a sense, the probability waves of a number of quantum systems in different parts of the brain, are brought into resonance, and our consciousness is able momentarily to create an ordered pattern that manifests physically through the brain. The thought, feeling, perception is momentarily earthed in physical reality, brought from the realm of the spiritually potential into outer actuality. This focussed ordering of the probability waves of many quantum systems requires an enormous amount of energy, but this can be borrowed in the quantum sense for a short instant of time. Thus we have through this quantum borrowing a virtual quantum state which is the physical embodiment of a thought, feeling, etc. However, as this can only be held for a short time, the quantum debt must be paid and the point of our consciousness is forced to jump to some other quantum state, perhaps in another region of the brain. Thus our thoughts are jumbled up with emotions, perceptions, fantasy images.
The central point within our consciousness, our "spirit" in the hermetic sense, can now be seen as an entity that can work to control quantum probabilities. To our "spirits" our brain is a quantum sea providing a rich realm in which it can incarnate and manifest patterns down into the electrical/chemical impulses of the nervous system. (It has been calculated that the number of interconnections existing in our brains far exceeds the number of atoms in the whole universe - so in this sense the microcosm truly mirrors the macrocosm!). Our "spirit" can through quantum borrowing momentarily press a certain order into this sea and this manifests as a thought, emotion, etc. Such an ordered state can only exist momentarily, before our spirit or point of consciousness is forced to jump and move to other regions of the brain, where at that moment the pattern of probability waves for the particles in these nerve cells, can reflect the form that our spirit is trying to work with.
This quantum borrowing to create regular patterns of probability waves is bought for a high price in that a degree of disorder must inevitably arise whenever the spirit tries to focus and reflect a linked sequential chain of patterns into the brain (such as we would experience as a logical train of thought or inward picture of some elaborate structure). Thus it is not surprising that our consciousness sometimes drifts and jumps about in a seemingly chaotic way. The quantum borrowing might also be behind our need for sleep and dream, allowing the physical brain to rid itself of the shadowy echos of these patterns pressed into it during waking consiousness. Dreaming may be that point in a cycle where consciousness and its vehicle interpenetrate and flow together, allowing the patterns and waves of probability to appear without any attempt to focus them to a point. In dream and sleep we experience our point of consciousness dissolving, decoupling and defocussing.
The central point of our consciousness when actively thinking or feeling, must of necessity jump around the sea of patterns in our brain. (It is well known through neurophysiology that function cannot be located at a certain point in the brain, but that different areas and groups of nerve cells can take on a variety of different functions.) We all experience this when in meditation we merely let our consciousness move as it will. Then we come to sense the elusive mercurial eternal movement of the point of our consciousness within our inner space. You will find it to be a powerful and convincing experience if you try in meditation to follow the point of your consciousness moving within the space of your skull. Many religious traditions teach methods for experiencing this inner point of spirit.
I believe the movement of this point of consciousness, which appears as a pattern of probability waves in the quantum sea, must occur in extremely short segments of time, of necessity shorter than the time an electron takes to move from one state to another within the molecular structure of the nerve cell membranes. We are thus dealing in time scales significantly less than 10 to the power -16 of a second and possibly down to 10 to the power -43 of a second. During such short periods of time, the Heisenberg Uncertainty Principle which lies at the basis of quantum theory, means that this central spark of consciousness can borrow a large amount of energy, which explains how it can bring a large degree of ordering into a pattern. Although our point of consciousness lives at this enormously fast speed, our brain which transforms this into a pattern of electro/chemical activity runs at a much slower rate. Between creating each pattern our spark of consciousness must wait almost a eternity for this to be manifested on the physical level. Perhaps this may account for the sense we all have sometimes of taking an enormous leap in consciousness, or travelling though vast realms of ideas, or flashes of images, in what is only a fleeting moment.
At around 10 to the power -43 of a second, time itself becomes quantised, that is it appears as discontinuous particles of time, for there is no way in which time can manifest in quantities less than 10 to the power -43 (the so called Planck time). For here the borrowed quantum energies distort the fabric of space turning it back upon itself. There time must have a stop. At such short intervals the energies available are enormous enough to create virtual black holes and wormholes in space-time, and at this level we have only a sea of quantum probabilities - the so called Quantum Foam. Contemporary physics suggests that through these virtual wormholes in space-time there are links with all time past and future, and through the virtual black holes even with parallel universes.
It must be somewhat above this level that our consciousness works, weaving probability waves into patterns and incarnating them in the receptive structure of our brains. Our being or spirit lives in this Quantum Foam, which is thus the Eternal Now, infinite in extent and a plenum of all possibilities. The patterns of everything that has been, that is now, and will come to be, exists latent in this quantum foam. Perhaps this is the realm though which the mystics stepped into timelessness, the eternal present, and sensed the omnipotence and omniscience of the spirit.
I believe that these exciting discoveries of modern physics could be the basis for a new view of consciousness and the way it is coupled to our physical nature in the brain. (Indeed, one of the fascinating aspects of Quantum theory which puzzles amd mystifies contemporary physicists is the way in which their quantum description of matter requires that they recognise the consciousness of the observer as a factor in certain experiments. This enigma has caused not a few physicists to take an interest in spirituality especially inclining them to eastern traditions like Taoism or Buddhism, and in time I hope that perhaps even the hermetic traditions might prove worthy of their interest).
An important experiment carried out as recently as summer 1982 by the French physicist, Aspect, has unequivocally demonstrated the fact that physicists cannot get round the Uncertainty Principle and simultaneously determine the quantum states of particles, and confirmed that physicists cannot divorce the consciousness of the observer from the events observed. This experiment (in disproving the separabilty of quantum measurements) has confirmed what Einstein, Bohr and Heisenberg were only able to philosophically debate over - that with quantum theory we have to leave behind our naive picture of reality as an intricate clockwork. We are challenged by quantum theory to build new ways in which to picture reality, a physics, moreover, in which consciousness plays a central role, in which the observer is inextricably interwoven in the fabric of reality.
In a sense it may now be possible to build a new model of quantum consciousness, compatible with contemporary physics and which allows a space for the inclusion of the hermetic idea of the spirit. It may well be that science has taken a long roundabout route through the reductionist determinism of the 19th century and returned to a more hermetic conception of our inner world.
In this short essay, incompletely argued though it may be, I hope I have at least presented some of the challenging ideas that lie behind the seeming negativity of our present age. For behind the hopelessness and despair of our times we stand on the brink of a great breakthrough to a new recognition of the vast spiritual depths which live within us all as human beings.
Rick
Sep 23, 2005, 10:36 AM
"...for when we look at such large aggregates as a totality, the total quantum uncertainties of the system reduces to zero, and in respect to their large scale properties can effectively be treated as deterministic systems."
Thanks, Hey Hey, for two well-written articles.
Unknown
Sep 23, 2005, 12:19 PM
| QUOTE (Rick @ Sep 23, 10:36 AM) |
"...for when we look at such large aggregates as a totality, the total quantum uncertainties of the system reduces to zero, and in respect to their large scale properties can effectively be treated as deterministic systems."
Thanks, Hey Hey, for two well-written articles. |
I would like to see actual worked-out examples of this
Rick
Sep 23, 2005, 01:20 PM
Put a pan of water on the stove and turn on the heat. Put an accurately calibrated thermometer in the water. When the water boils the thermometer will read 212 degrees F if you are at sea level. Tell me if you should not see it.
The molecules of water have an average (aggregate) velocity that is proportional to the temperature. It works every time.
Paul King
Sep 26, 2005, 02:57 PM
| QUOTE (nongrata @ Aug 15, 01:37 AM) |
Where is the locus of reality? Is it internal or external?
I would be keen to hear what YOUR thoughts are on this
|
There is a world out there. In that sense, reality is external.
However we have no direct access to this world. What we know about it comes indirectly from information collected by the measurement apparatus of our sense organs (vision, auditory, ...).
The world that we perceive is a constructed model based on the statistical information gathered from our senses. In this sense, realiity is internal.
We trust our internal model and treat is as real because: 1) it is reliable, and 2) we do not have much other choice. Solipsism is lonely and does not cook dinner.
Optical illusions, movies, and slight of hand magic tricks are examples in which the techniques used by our measurement and model-building apparatus fool us into perceiving something that is not there. Often we like being fooled while being aware that a deception is happening.
The "I" is the perceiver of the model, which is itself a construct of the modeling system. Thus our experience of reality is a by-product of our brain's reality model interacting with itself and storing the results of those interactions as memory.
Hey Hey
Sep 26, 2005, 05:24 PM
| QUOTE (Paul King @ Sep 26, 11:57 PM) |
| The "I" is the perceiver of the model, which is itself a construct of the modeling system. Thus our experience of reality is a by-product of our brain's reality model interacting with itself and storing the results of those interactions as memory. |
This could be taken as: the brain creates the model and the homunculus "sees" it. Oh dear!
Unknown
Sep 26, 2005, 07:15 PM
| QUOTE (Paul King @ Sep 26, 02:57 PM) |
There is a world out there. In that sense, reality is external.
However we have no direct access to this world. What we know about it comes indirectly from information collected by the measurement apparatus of our sense organs (vision, auditory, ...).
The world that we perceive is a constructed model based on the statistical information gathered from our senses. In this sense, realiity is internal.
We trust our internal model and treat is as real because: 1) it is reliable, and 2) we do not have much other choice. Solipsism is lonely and does not cook dinner.
Optical illusions, movies, and slight of hand magic tricks are examples in which the techniques used by our measurement and model-building apparatus fool us into perceiving something that is not there. Often we like being fooled while being aware that a deception is happening.
The "I" is the perceiver of the model, which is itself a construct of the modeling system. Thus our experience of reality is a by-product of our brain's reality model interacting with itself and storing the results of those interactions as memory. |
Paul, that is "folk psychology"; not to berate it, but probably 99.9% of people believe in the reality of external/internal world and 'I'. It is all smoke and mirrors my friend. "Internal", "External", "I" have no substance; they are illusions.
rhymer
Sep 27, 2005, 11:07 AM
Unknown,
One definition of 'illusion' is "An erroneous mental representation".
Are you implying that ALL mental representations are erroneous?
Unknown
Sep 27, 2005, 11:21 AM
| QUOTE (rhymer @ Sep 27, 11:07 AM) |
Unknown, One definition of 'illusion' is "An erroneous mental representation".
Are you implying that ALL mental representations are erroneous? |
I am only saying that "folk psychology" is wrong. The richness of life and being does not attest to the clumsy attempts of folk psychology at rationalization, simplicity, and understanding.
rhymer
Sep 27, 2005, 03:23 PM
hi unknown,
ok., but can you be a bit more specific in 'criticising' Pauls' statements about 'internal and external concepts and I'?
To a large extent I agree with what Paul is saying and can't accept your statement that they are illusory concepts. [it may just be word usage causing problems for me].
I agree that 'folk psychology' can be misleading [and is wrong] but for many, it at least gives some 'indication'' of the truth which may understandable for them.
My definition of internal includes all thoughts and concepts.
My definition of external includes everything excwept that which is within a human body.
And 'I' am me.
Hello!
Rick
Sep 27, 2005, 04:06 PM
So are you within or without?
Unknown
Sep 27, 2005, 04:24 PM
I am within my rights, but without jurisdiction.
rhymer
Sep 27, 2005, 04:25 PM
and without being logged-in!
Paul King
Sep 29, 2005, 10:17 PM
| QUOTE (Hey Hey @ Sep 26, 05:24 PM) |
| QUOTE (Paul King @ Sep 26, 11:57 PM) | | The "I" is the perceiver of the model, which is itself a construct of the modeling system. Thus our experience of reality is a by-product of our brain's reality model interacting with itself and storing the results of those interactions as memory. |
This could be taken as: the brain creates the model and the homunculus "sees" it. Oh dear!
|
Regarding this question "is there or is there not a homunculus"....
The answer has to be "yes and no"!
Yes, there is a "perceiver". However this perceiver is not a special part of the brain that is pulling levers to control the rest of the brain. Nor is the perceiver an external spirit or aggregated quantum effect that is manipulating the brain via a mind-body gateway.
The perceiver is a contructed element of the world model maintained by the brain. One could say the perceiver is "simulated", although this would not do justice to its role in interacting with the environment and other perceivers (other people).
What the perceiver knows about itself comes from memories stored in the brain. These memories are not a literal record of what happened, for example the way a tape-recorder makes a literal record of sound waves. Rather, these memories are an interpreted narrative of events featuring the perceiver as the main character (e.g. the Intentional Stance of Daniel Dennett).
The perceiver can control the body. So in this sense we have free will. However the perceiver does not exert control in the way that it thinks it does.
The perceiver thinks that most action is the result of considered intention. This is an embellished account that is provided to the perceiver for the purpose of behavior planning, but it is not really true.
In reality, the perceiver learns about most behaviors after they have already been initiated. One could think of such behavior as being generated from the unconscious, or as a result of intuition. However it would be more accurate to say that most (all?) behavior is generated as a result of policies and strategies previously established. From a neuroscience perspective, the behaviors are a result of dynamic control structures established in the past via the adaptive attenuation of signal conductance at the synapses. (Plus a lot of other complex machinery.)
The "simulated perceiver" exerts an indirect influence over behavior because of the perceiver's role as the center of the narrative model of events. This narrative model suggests plans and next steps which influence behavior. These plans and next steps are modeled after-the-fact as intentions leading to actions. This exagerated causal record furthers the illusion of free will -- or forms the basis for real free will -- depending on one's perspective.
Paul King
Sep 29, 2005, 10:37 PM
| QUOTE (Unknown @ Sep 26, 07:15 PM) |
| It is all smoke and mirrors my friend. "Internal", "External", "I" have no substance; they are illusions. |
It is true that these are illusions. Our entire experienced reality is an illusion.
But this is not the complete story.
Our experienced reality is a functioning illusion.
It is like interacting with someone over a video conference or video chat. The other person is not really there. There is only glowing phospher on glass and electronic signals passing over networks. And yet it is as if the person was there.
The illusion is so complete that it is not only taken as real, but is real.
Hey Hey
Sep 30, 2005, 12:37 AM
then, what are we and why are we here?
Paul King
Oct 03, 2005, 04:36 AM
| QUOTE (Hey Hey @ Sep 30, 12:37 AM) |
| then, what are we and why are we here? |
Interesting question! Here are some answers at increasing levels of abstraction.
We are:
- a dynamic construct of our brain's neural apparatus
- an attempt to model the dynamic patterns of interactivity at the interface between our body and the natural environment
- a product of our upbringing, our cultural, social, and linguistic context, and our spatio-temporal position
- a living participant in the social ecosystem of other conscious beings
- a member of society, with a history, reputation, free will, and various social and legal relationships
- an adaptive channel through which organized patterns for survival propagate from generation to generation
- a continuation of spirit from antiquity to eternity (for some definition of "spirit")
Our conscious life is attached to the brain that produces it, which is attached to the body that sustains it.
We are here because this is where our body is.
Hey Hey
Oct 05, 2005, 03:15 PM
OK Paul, but I don't agree with free will.
Rick
Oct 06, 2005, 10:09 AM
| QUOTE (Hey Hey @ Oct 05, 04:15 PM) |
| OK Paul, but I don't agree with free will. |
Why not? Can't you do whatever you want and want whatever you want?
For myself, I can do whatever I have the power to do, but I find it hard wanting to change my wants.
rhymer
Oct 06, 2005, 10:52 AM
I know I have free will.
I've been suffering from slow start-up (2minutes) and slow shutdown (6 minutes) of windows xp and some bad sectors on my hard disc!
I nearly chose to throw it away after 3 weeks of delving and changing things, but today I am back to 20 seconds for start-up and 10 seconds for shutdown without having to re-install windows.
I am glad I had at least four choices and that I chose to persevere on my own!
Rick
Oct 06, 2005, 01:41 PM
But are you sure your wanting to choose to persevere was the best thing to want to do? Maybe it would have been better to want to throw it away three weeks earlier.
rhymer
Oct 06, 2005, 02:29 PM
I was giving evidence of free will.
When it comes to choice, one can rarely be sure that a chosen option is the best one, I think.
How often we say 'with hindsight.....'.
Ideally we should be able to try all possible options, as if no other option had already been chosen, and to then select what you believe to be the option which gave the best detected outcome.
Obviously this is not possible!
We do try to choose the 'best' option based on previous experience and knowledge of what happened to others or elsewhere in similar circumstances.
I do not accept that 'we are driven to only one choice' because of this, and therefore, have no free will. We can after all change our minds; especially the ladies!
I do concede that every action undertaken is dependent on previous actions. In that sense we can only choose from options available to us for actions that have already occurred.
Imagination allows us to perceive of possible future actions and to decide on ones own responses to such actions.
By action I mean event, thought or anything that can happen.
Would you go back to live in N. Orleans (or similar) unless they rebuild it on top of imported rubble 25 feet above sea level?
Rick
Oct 06, 2005, 03:17 PM
People live in Amsterdam, don't they? But, of course, they don't have Republicans to cut the dike maintenance program.
Hey Hey
Oct 07, 2005, 11:09 AM
York seems to flood almaost every year now. But then again, the Romans knew this as they built no wall along Foss Islands Road where the land was too swampy. This was later called Kings Pool. But people still built and bought houses in that region. I suppose that's free will!
Rick
Oct 07, 2005, 11:25 AM
There does seem to be a kernel of an argument in that. Suppose we assume that the more intelligent a thing is, the less free it is. This might be reasonable because a more intelligent plan of action might be more predictable. Then it will be the idiots (like Bush) who are the loose cannons--you never know what stupidity they might come up with.
Extending the argument, we take it down to the completely inanimate (and totally unintelligent) object such as a roulette wheel. Completely random action is completely free and unpredicatable.
The result of this line of reasoning is that the more purposeful we are the less free we are. So be it.
rhymer
Oct 07, 2005, 01:06 PM
You should come and live in Lancashire Hey Hey!
We even eat our pies under umbrellas!
Rick,
Surely intelligence allows for the realisation of more choices, more decisions and therefore, more unpredictability?
Free will, if it exists, exacerbates this situation.
Unknown
Oct 07, 2005, 06:45 PM
| QUOTE (nongrata @ Aug 15, 01:37 AM) |
Where is the locus of reality? Is it internal or external?
I would be keen to hear what YOUR thoughts are on this, as it seems most posed with this question love to quote philosophers new and old.
It seems to me it has to include both interior and exterior but I would lean towards the internal as the ultimate locus. How would we be able to test this? Could we use sincerity and truth as a test?
Im not sure and need to give it more thought. |
perhaps the inner leads to the outer and vice versa; all we have is a circle.
Hey Hey
Oct 08, 2005, 03:31 PM
| QUOTE (Unknown @ Oct 08, 03:45 AM) |
| all we have is a circle. |
curved space?
Hey Hey
Oct 08, 2005, 03:33 PM
| QUOTE (rhymer @ Oct 07, 10:06 PM) |
We even eat our pies under umbrellas! |
Yer, and our puddings are always soggy!
Paul King
Oct 09, 2005, 10:05 PM
| QUOTE (Hey Hey @ Oct 05, 03:15 PM) |
| OK Paul, but I don't agree with free will. |
| QUOTE (Rick @ Oct 06, 10:09 AM) |
| Why not? Can't you do whatever you want and want whatever you want? |
| QUOTE (rhymer @ Oct 06, 10:52 AM) |
| I know I have free will. |
Free will can be implemented on top of a deterministic system, especially if it is an open system that is not fully accessible to observation.
Hey Hey -- would you at least accept the "illusion" of free will? We all feel that we make choices freely. While we are influenced by our past and our desires, we believe rightly or wrongly that we have the power to do other than what our past and our impulses dictate.
Free will is best understood as a social construct. Free will is what you think you have relative to the will of other people. You can cooperate with or defy someone else or society or the government. The socialized notion of legal culpability has further established this framework.
There is an abstract notion of free will, which is the idea that one's actions cannot be predicted by others. However this is more of a "test" of an idea and not of much practical use. Do children not have free will even when adults can "see through" their attempts at deception?
In the case of the human brain, the system is more complex than can be precisely simulated. There is too much state for us to precisely model and the inputs are too complex for us to have full access to them (we cannot know the exact timing of every single sensory nerve impulse). This makes human behavior unpredictable in practice.
But the argument about unpredictability is irrelevant. Free will is what a conscious, social being feels that it has when in a society of other conscious, social beings. Free will is only meaningful in the context of a society of independent beings exhibiting personal agency. It characterizes the relationships of these beings to each other, and not much more than that.
Rick
Oct 10, 2005, 10:18 AM
| QUOTE (Paul King @ Oct 09, 11:05 PM) |
| But the argument about unpredictability is irrelevant. |
In the way the "problem" of free will is framed traditionally, a consequence of the absence of free will is predictability (in theory, not in practice), and conversely, if a person's choices are predictable in theory, then he has no free will, however convincing his illusions of freedom may be.
Any entity driven by computation (in the formal sense) such as a robot running on a Von Neuman machine contolller is theoretically predictable and therefore not free. The classical free will problem asks if we are equivalent to machines (brains as mechanisms) then how is it that we are free (if indeed we are)?
rhymer
Oct 10, 2005, 02:38 PM
At the present I believe in both determinism and free will, and find no conflict between the two.
The freedom of my 'will' is limited by what determinism (ie., all previous events which have affected my life and the world to this point in time), and the laws of nature allow.
Nonetheless, I am free to choose from all the possible actions I can possibly take (predictable if we had enough time to realise them all) at any point in time.
Are there any weaknesses in this point of view?
[I have tried very hard to think of anything which could happen tomorrow which did not depend on previous events and failed miserably. I invite anyone to give me an example]
Hey Hey
Oct 10, 2005, 02:51 PM
Each action/event could create another universe and descriptions of events can become so complicated as to be seen as impossible to understand. Really though, what we are saying is that "at this time" we are unable to understand and therefore predict. Think of human life a million years ahead, then a billion, and so on. Also, don't end these "time" periods with the lifespan of our own or present universe, but one we might escape to. (Notice the "life"span, hoping that life has a big part to play in the nature of things). Anyway, above is just a possibility, but might show that free will has little impact and indeed might be just part of the equation. I know the quantum and probability people will shoot this down in flames, but as you know, their theories are just theories, and this is possibly just one universe in the multiverse of physical laws. Present heavyweight Earthen theories could disintegrate. Einstein might follow Newton.
I like this illusion of free will. Or is it better as free will within an illusion? Or no free will within an illusion? I think the big question is "If we ever discover it's any of these, where do we go from there?" Of course we all know that what we experience is certainly an illusion created by our biology (e.g. eyes) and enhanced by imperfect technology (e.g. electronics). How can you rely on anything, when all we see, hear and feel is the past?
(Forgive please, just rambling between creating a submission document for a Foundation Degree in Applied Science and sleep).
rhymer
Oct 10, 2005, 03:25 PM
Sleep tight Hey Hey and thanks for the 'ramblings'.
I totally accept that our perceptions are not totally truthful.
They are nonetheless, symbolic representations of what is 'going on'.
We normally survive quite well, despite all the objects we might bump into, or which might bump into us each day!
Our perceptions do give us a useful 'model' of what is going on out there.
Whilst they may be of an 'illusory' nature, I think this normally only applies to the detail of the events we perceive.