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Xin giới thiệu với các bạn một quyển sách tiếng Anh rất hay và hấp dẫn. Một Lý Thuyết Mới về Vũ Trụ.

Lý thuyết này có thể giải thích được nhiều hiện tượng khoa học huyền bí như biết được chuyện quá khứ, vị lai, vv....

“The Holographic Universe” tác giả Michael Talbot.

Hình như ngocnhan có quyển này, nhưng cũng chưa có thời gian ngâm cứu lắm vì dạo này bận quá, post lên đây mọi người đọc, có gì hay nói ngocnhan biết với nhá.

THE

HOLOGRAPHIC

UNIVERSE

MICHAEL TALBOT

PART I

A REMARKABLE

NEW VIEW

OF REALITY

Sit down before fact like a little child, and be prepared

to give up every preconceived notion, follow

humbly wherever and to whatever abyss Nature

leads, or you shall learn nothing.

—T. H. Huxley

--------------------

1

The Brain as Hologram

It isn't that the world of appearances is wrong; it isn't that there

aren't

objects out there, at one level of reality. It's that if you

penetrate through and look at the universe with a holographic

system, you arrive at a different view, a different reality. And

that other reality can explain things that have hitherto remained

inexplicable scientifically: paranormal phenomena,

synchronicities, the apparently meaningful coincidence of

events.

— Karl Pribram

in an interview in

Psychology Today

The puzzle that first started Pribram on the road to formulating his

holographic model was the question of how and where memories are

stored in the brain. In the early 1940s, when he first became interested

in this mystery, it was generally believed that memories were localized

in the brain. Each memory a person had, such as the memory of the

last time you saw your grandmother, or the memory of the fragrance

of a gardenia you sniffed when you were sixteen, was believed to have

a specific location somewhere in the brain cells. Such memory traces

were called

engrams, and although no one knew what an engram was

made of — whether it was a neuron or perhaps even a special kind of

molecule — most scientists were confident it was only a matter of time

before one would be found.

There were reasons for this confidence. Research conducted by

Canadian neurosurgeon Wilder Penfield in the 1920s had offered convincing

evidence that specific memories did have specific locations in the

brain. One of the most unusual features of the brain is that the object

itself doesn't sense pain directly. As long as the scalp and skull have

been deadened with a local anesthetic, surgery can be performed on

the brain of a fully conscious person without causing any pain.

In a series of landmark experiments, Penfield used this fact to his

advantage. While operating on the brains of epileptics, he would electrically

stimulate various areas of their brain cells. To his amazement

he found that when he stimulated the temporal lobes (the region of the

brain behind the temples) of one of his fully conscious patients, they

reexperienced memories of past episodes from their lives in vivid detail.

One man suddenly relived a conversation he had had with friends

in South Africa; a boy heard his mother talking on the telephone and

after several touches from Penfield's electrode was able to repeat her

entire conversation; a woman found herself in her kitchen and could

hear her son playing outside. Even when Penfield tried to mislead his

patients by telling them he was stimulating a different area when he

was not, he found that when he touched the same spot it always

evoked the same memory.

In his book

The Mystery of the Mind, published in 1975, just shortly

before his death, he wrote, "It was evident at once that these were not

dreams. They were electrical activations of the sequential record of

consciousness, a record that had been laid down during the patient's

earlier experience. The patient 're-lived' all that he had been aware of

in that earlier period of time as in a moving-picture 'flashback. ' "

!

From his research Penfield concluded that everything we have ever

experienced is recorded in our brain, from every stranger's face we

have glanced at in a crowd to every spider web we gazed at as a child.

He reasoned that this was why memories of so many insignificant

events kept cropping up in his sampling. If our memory is a complete

record of even the most mundane of our day-to-day experiences, it is

reasonable to assume that dipping randomly into such a massive

chronicle would produce a good deal of trifling information.

As a young neurosurgery resident, Pribram had no reason to doubt

Penfield's engram theory. But then something happened that was to

change his thinking forever. In 1946 he went to work with the great

neuropsychologist Karl Lashley at the Yerkes Laboratory of Primate

Biology, then in Orange Park, Florida. For over thirty years Lashley

had been involved in his own ongoing search for the elusive

mechanisms responsible for memory, and there Pribram was able to witness

the fruits of Lashley's labors firsthand. What was startling was

that not only had Lashley failed to produce any evidence of the engram,

but his research actually seemed to pull the rug out from under

all of Penfield's findings.

What Lashley had done was to train rats to perform a variety of

tasks, such as run a maze. Then he surgically removed various portions

of their brains and retested them. His aim was literally to cut out

the area of the rats' brains containing the memory of their mazerunning

ability. To his surprise he found that no matter what portion

of their brains he cut out, he could not eradicate their memories. Often

the rats' motor skills were impaired and they stumbled clumsily

through the mazes, but even with massive portions of their brains

removed, their memories remained stubbornly intact.

For Pribram these were incredible findings. If memories possessed

specific locations in the brain in the same way that books possess

specific locations on library shelves, why didn't Lashley's surgical

plunderings have any effect on them? For Pribram the only answer

seemed to be that memories were not localized at specific brain sites,

but were somehow spread out or

distributed throughout the brain as

a whole. The problem was that he knew of no mechanism or process

that could account for such a state of affairs.

Lashley was even less certain and later wrote, "I sometimes feel, in

reviewing the evidence on the localization of the memory trace, that

the necessary conclusion is that learning just is not possible at all.

Nevertheless, in spite of such evidence against it, learning does sometimes

occur. "

2 In 1948 Pribram was offered a position at Yale, and

before leaving he helped write up thirty years of Lashley's monumental

research.

The Breakthrough

At Yale, Pribram continued to ponder the idea that memories were distributed throughout the brain, and the more he thought about it the more convinced he became. After all, patients who had had portions of their brains removed for medical reasons never suffered the loss of specific memories. Removal of a large section of the brain might cause a patient's memory to become generally hazy, but no one ever came out of surgery with any selective memory loss. Similarly, individuals who had received head injuries in car collisions and other accidents never forgot half of their family, or half of a novel they had read. Even removal of sections of the temporal lobes, the area of the brain that had figured so prominently in Penfield's research, didn't create any gaps in a person's memories. Pribram's thinking was further solidified by his and other researchers' inability to duplicate Penfield's findings when stimulating brains other than those of epileptics. Even Penfield himself was unable to duplicate his results in nonepileptic patients. Despite the growing evidence that memories were distributed, Pribram was still at a loss as to how the brain might accomplish such a seemingly magical feat. Then in the mid-1960s an article he read in Scientific American

describing the first construction of a hologram hit him like a thunderbolt. Not only was the concept of holography dazzling, but it provided a solution to the puzzle with which he had been wrestling.

To understand why Pribram was so excited, it is necessary to understand a little more about holograms. One of the things that makes holography possible is a phenomenon known as interference. Interference is the crisscrossing pattern that occurs when two or more waves, such as waves of water, ripple through each other. For example, if you drop a pebble into a pond, it will produce a series of concentric waves that expands outward. If you drop two pebbles into a pond, you will get two sets of waves that expand and pass through one another. The complex arrangement of crests and troughs that results from such collisions is known as an interference pattern.

Any wavelike phenomena can create an interference pattern, including light and radio waves. Because laser light is an extremely pure, coherent form of light, it is especially good at creating interference patterns. It provides, in essence, the perfect pebble and the perfect pond. As a result, it wasn't until the invention of the laser that holograms, as we know them today, became possible.

A hologram is produced when a single laser light is split into two separate beams. The first beam is bounced off the object to be photographed. Then the second beam is allowed to collide with the reflected light of the first. When this happens they create an interference pattern which is then recorded on a piece of film (see fig. 1).

To the naked eye the image on the film looks nothing at all like the object photographed. In fact, it even looks a little like the concentric rings that form when a handful of pebbles is tossed into a pond (see fig. 2). But as soon as another laser beam (or in some instances just a bright light source) is shined through the film, a three-dimensional image of the original object reappears. The three-dimensionality of such images is often eerily convincing. You can actually walk around a holographic projection and view it from different angles as you would a real object However, if you reach out and try to touch it, your hand will waft right through it and you will discover there is really nothing there (see fig. 3).

Three-dimensionality is not the only remarkable aspect of holograms. If a piece of holographic film containing the image of an apple is cut in half and then illuminated by a laser, each half will still be found to contain the entire image of the apple! Even if the halves are divided again and then again, an entire apple can still be reconstructed from each small portion of the film (although the images will get hazier as the portions get smaller). Unlike normal photographs, every

small fragment of a piece of holographic film contains all the information recorded in the whole (see fig. 4)-*

This was precisely the feature that got Pribram so excited, for it offered at last a way of understanding how memories could be distributed rather than localized in the brain. If it was possible for every portion of a piece of holographic film to contain all the information necessary to create a whole image, then it seemed equally possible for every part of the brain to contain all of the information necessary to recall a whole memory.

It should be noted that this astounding trait is common only to pieces of holographic film whose images are invisible to the naked eye. If you buy a piece of holographic film (or an object containing a piece of holographic film) in a store and can see a three-dimensional image in it without any special kind of illumination, do not cut it in half. You will only end up with pieces of the original image

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Vision Also Is Holographic

Memory is not the only thing the brain may process holographically. Another of Lashley's discoveries was that the visual centers of the brain were also surprisingly resistant to surgical excision. Even after removing as much as 90 percent of a rat's visual cortex (the part of the brain that receives and interprets what the eye sees), he found it could still perform tasks requiring complex visual skills. Similarly, research conducted by Pribram revealed that as much as 98 percent of a cat's optic nerves can be severed without seriously impairing its ability to perform complex visual tasks. 3

Such a situation was tantamount to believing that a movie audience could still enjoy a motion picture even after 90 percent of the movie screen was missing, and his experiments presented once again a serious challenge to the standard understanding of how vision works.According to the leading theory of the day, there was a one-to-one correspondence between the image the eye sees and the way that image is represented in the brain. In other words, when we look at a square, it was believed the electrical activity in our visual cortex also possesses the form of a square (see fig. 5).

Although findings such as Lashley's seemed to deal a deathblow to this idea, Pribram was not satisfied. While he was at Yale he devised a series of experiments to resolve the matter and spent the next seven years carefully measuring the electrical activity in the brains of monkeys while they performed various visual tasks. He discovered that not only did no such one-to-one correspondence exist, but there wasn't even a discernible pattern to the sequence in which the electrodes fired. He wrote of his findings, "These experimental results are incompatible with a view that a photographic-like image becomes projected onto the cortical surface. "4

Once again the resistance the visual cortex displayed toward surgical excision suggested that, like memory, vision was also distributed, and after Pribram became aware of holography he began to wonder if it, too, was holographic. The "whole in every part" nature of a hologram certainly seemed to explain how so much of the visual cortex could be removed without affecting the ability to perform visual tasks. If the brain was processing images by employing some kind of internal hologram, even a very small piece of the hologram could still reconstruct the whole of what the eyes were seeing. It also explained the lack of any one-to-one correspondence between the external world and the brain's electrical activity. Again, if the brain was using holographic principles to process visual information, there would be no more one-to-one correspondence between electrical activity and images seen than there was between the meaningless swirl of interference patterns on a piece of holographic film and the image the film encoded.

The only question that remained was what wavelike phenomenon the brain might be using to create such internal holograms. As soon as Pribram considered the question he thought of a possible answer. It was known that the electrical communications that take place between the brain's nerve cells, or neurons, do not occur alone. Neurons possess branches like little trees, and when an electrical message reaches the end of one of these branches it radiates outward as does the ripple in a pond. Because neurons are packed together so densely, these expanding ripples of electricity—also a wavelike phenomenon— are constantly crisscrossing one another. When Pribram remembered this he realized that they were most assuredly creating an almost endless and kaleidoscopic array of interference patterns, and these in turn might be what give the brain its holographic properties. "The hologram was there all the time in the wave-front nature of brain-cell connectivity, " observed Pribram. "We simply hadn't had the wit to realize it. "5

Other Puzzles Explained by the Holographic Brain Model

Pribram published his first article on the possible holographic nature of the brain in 1966, and continued to expand and refine his ideas during the next several years. As he did, and as other researchers became aware of his theory, it was quickly realized that the distributed nature of memory and vision is not the only neurophysiological puzzle the holographic model can explain.

THE VASTNESS OF OUR MEMORY

Holography also explains how our brains can store so many memories in so little space. The brilliant Hungarian-born physicist and mathematician John von Neumann once calculated that over the course of the average human lifetime, the brain stores something on the order of 2. 8 x 10

20 (280, 000, 000, 000, 000, 000, 000) bits of information. This is a staggering amount of information, and brain researchers have long struggled to come up with a mechanism that explains such a vast capability. Interestingly, holograms also possess a fantastic capacity for information storage. By changing the angle at which the two lasers strike a piece of photographic film, it is possible to record many different images on the same surface. Any image thus recorded can be retrieved simply by illuminating the film with a laser beam possessing the same angle as the original two beams. By employing this method researchers have calculated that a one-inch-square of film can store the same amount of information contained in fifty Bibles!6

OUR ABILITY TO BOTH RECALL AND FORGET

Pieces of holographic film containing multiple images, such as those described above, also provide a way of understanding our ability to both recall and forget. When such a piece of film is held in a laser beam and tilted back and forth, the various images it contains appear and disappear in a glittering stream. It has been suggested that our ability to remember is analogous to shining a laser beam on such a piece of film and calling up a particular image. Similarly, when we are unable to recall something, this may be equivalent to shining various beams on a piece of multiple-image film, but failing to find the right angle to call up the image/memory for which we are searching.

ASSOCIATIVE MEMORY

In Proust's

Swann's Way a sip of tea and a bite of a small scallopshaped cake known as a petite madeleine cause the narrator to find himself suddenly flooded with memories from his past. At first he is puzzled, but then, slowly, after much effort on his part, he remembers that his aunt used to give him tea and madeleines when he was a little boy, and it is this association that has stirred his memory. We have all had similar experiences—a whiff of a particular food being prepared, or a glimpse of some long-forgotten object—that suddenly evoke some scene out of our past.

The holographic idea offers a further analogy for the associative tendencies of memory. This is illustrated by yet another kind of holographic recording technique. First, the light of a single laser beam is bounced off two objects simultaneously, say an easy chair and a smoking pipe. The light bounced off each object is then allowed to collide, and the resulting interference pattern is captured on film. Then, whenever the easy chair is illuminated with laser light and the light that reflects off the easy chair is passed through the film, a three-dimensional image of the pipe will appear. Conversely, whenever the same is done with the pipe, a hologram of the easy chair appears. So, if our brains function holographically, a similar process may be responsible for the way certain objects evoke specific memories from our past.

OUR ABILITY TO RECOGNIZE FAMILIAR THINGS

At first glance our ability to recognize familiar things may not seem so unusual, but brain researchers have long realized it is quite a complex ability. For example, the absolute certainty we feel when we spot a familiar face in a crowd of several hundred people is not just a subjective emotion, but appears to be caused by an extremely fast and reliable form of information processing in our brain.

In a 1970 article in the British science magazine Nature, physicist Pieter van Heerden proposed that a type of holography known as recognition holography offers a way of understanding this ability. * In recognition holography a holographic image of an object is recorded in the usual manner, save that the laser beam is bounced off a special kind of mirror known as a focusing mirror before it is allowed to strike the unexposed film. If a second object, similar but not identical

* Van Heerden, a researcher at the Polaroid Research Laboratories in Cambridge, Massachusetts, actually proposed his own version of a holographic theory of memory in 1963, but his work went relatively unnoticed.

to the first, is bathed in laser light and the light is bounced off the mirror and onto the film after it has been developed, a bright point of light will appear on the film. The brighter and sharper the point of light the greater the degree of similarity between the first and second objects. If the two objects are completely dissimilar, no point of light will appear. By placing a light-sensitive photocell behind the holographic film, one can actually use the setup as a mechanical recognition system.

7

A similar technique known as

interference holography may also explain how we can recognize both the familiar and unfamiliar features of an image such as the face of someone we have not seen for many years. In this technique an object is viewed through a piece of holographic film containing its image. When this is done, any feature of the object that has changed since its image was originally recorded will reflect light differently. An individual looking through the film is instantly aware of both how the object has changed and how it has remained the same. The technique is so sensitive that even the pressure of a finger on a block of granite shows up immediately, and the process has been found to have practical applications in the materialstesting industry. 8

PHOTOGRAPHIC MEMORY

In 1972, Harvard vision researchers Daniel Pollen and Michael Tractenberg proposed that the holographic brain theory may explain why some people possess photographic memories (also known as

eidetic memories}. Typically, individuals with photographic memories will spend a few moments scanning the scene they wish to memorize. When they want to see the scene again, they "project" a mental image of it, either with their eyes closed or as they gaze at a blank wall or screen. In a study of one such individual, a Harvard art history professor named Elizabeth, Pollen and Tractenberg found that the mental images she projected were so real to her that when she read an image of a page from Goethe's Faust her eyes moved as if she were reading a real page.

Noting that the image stored in a fragment of holographic film gets hazier as the fragment gets smaller, Pollen and Tractenberg suggest that perhaps such individuals have more vivid memories because they somehow have access to very large regions of their memory holo grams. Conversely, perhaps most of us have memories that are much less vivid because our access is limited to smaller regions of the memory holograms. 9

THE TRANSFERENCE OF LEARNED SKILLS

Pribram believes the holographic model also sheds light on our ability to transfer learned skills from one part of our body to another. As you sit reading this book, take a moment and trace your first name in the air with your left elbow. You will probably discover that this is a relatively easy thing to do, and yet in all likelihood it is something you have never done before. It may not seem a surprising ability to you, but in the classic view that various areas of the brain (such as the area controlling the movements of the elbow) are "hard-wired, " or able to perform tasks

only after repetitive learning has caused the proper neural connections to become established between brain cells, this is something of a puzzle. Pribram points out that the problem becomes much more tractable if the brain were to convert all of its memories, including memories of learned abilities such as writing, into a language of interfering wave forms. Such a brain would be much more flexible and could shift its stored information around with the same ease that a skilled pianist transposes a song from one musical key to another.

This same flexibility may explain how we are able to recognize a familiar face regardless of the angle from which we are viewing it. Again, once the brain has memorized a face (or any other object or scene) and converted it into a language of wave forms, it can, in a sense, tumble this internal hologram around and examine it from any perspective it wants.

PHANTOM LIMB SENSATIONS AND HOW WE CONSTRUCT A "WORLD-OUT-THERE"

To most of us it is obvious that our feelings of love, hunger, anger, and so on, are internal realities, and the sound of an orchestra playing, the heat of the sun, the smell of bread baking, and so on, are external realities. But it is not so clear how our brains enable us to distinguish between the two. For example, Pribram points out that when we look at a person, the image of the person is really on the surface of our retinas. Yet we do not perceive the person as being on our retinas. We perceive them as being in the "world-out-there. " Similarly, when we stub our toe we experience the pain in our toe. But the pain is not really in our toe. It is actually a neurophysiological process taking place somewhere in our brain. How then is our brain able to take the multitude of neurophysiological processes that manifest as our experience, all of which are internal, and fool us into thinking that some are internal and some are located beyond the confines of our gray matter?

Creating the illusion that things are located where they are not is the quintessential feature of a hologram. As mentioned, if you look at a hologram it seems to have extension in space, but if you pass your hand through it you will discover there is nothing there. Despite what your senses tell you, no instrument will pick up the presence of any abnormal energy or substance where the hologram appears to be hovering. This is because a hologram is a virtual image, an image that appears to be where it is not, and possesses no more extension in space than does the three-dimensional image you see of yourself when you look in a mirror. Just as the image in the mirror is located in the silvering on the mirror's back surface, the actual location of a hologram is always in the photographic emulsion on the surface of the film recording it.

Further evidence that the brain is able to Tool us into thinking that inner processes are located outside the body comes from the Nobel Prize-winning physiologist Georg von Bekesy. In a series of experiments conducted in the late 1960s Bekesy placed vibrators on the knees of blindfolded test subjects. Then he varied the rates at which the instruments vibrated. By doing so he discovered that he could make his test subjects experience the sensation that a point source of vibration was jumping from one knee to the other. He found that he could even make his subjects feel the point source of vibration in the space between their knees. In short, he demonstrated that humans have the ability to seemingly experience sensation in spatial locations where they have absolutely no sense receptors. 10

Pribram believes that Bekesy's work is compatible with the holographic view and sheds additional light on how interfering wave fronts—or in Bekesy's case, interfering sources of physical vibration— enable the brain to localize some of its experiences beyond the physical boundaries of the body. He feels this process might also explain the phantom limb phenomenon, or the sensation experienced by some amputees that a missing arm or leg is still present. Such individuals often feel eerily realistic cramps, pains, and tinglings in these phantom appendages, but maybe what they are experiencing is the holographic memory of the limb that is still recorded in the interference patterns in their brains.

p.26

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Experimental Support for the Holographic Brain

For Pribram the many similarities between brains and holograms were tantalizing, but he knew his theory didn't mean anything unless it was backed up by more solid evidence. One researcher who provided such evidence was Indiana University biologist Paul Pietsch. Intriguingly, Pietsch began as an ardent disbeliever in Pribram's theory. He was especially skeptical of Pribram's claim that memories do not possess any specific location in the brain.

To prove Pribram wrong, Pietsch devised a series of experiments, and as the test subjects of his experiments he chose salamanders. In previous studies he had discovered that he could remove the brain of a salamander without killing it, and although it remained in a stupor as long as its brain was missing, its behavior completely returned to normal as soon as its brain was restored.

Pietsch reasoned that if a salamander's feeding behavior is not confined to any specific location in the brain, then it should not matter how its brain is positioned in its head. If it did matter, Pribram's theory would be disproven. He then flip-flopped the left and right hemispheres of a salamander's brain, but to his dismay, as soon as it recovered, the salamander quickly resumed normal feeding. He took another salamander and turned its brain upside down.

When it recovered it, too, fed normally. Growing increasingly frustrated, he decided to resort to more drastic measures. In a series of over 700 operations he sliced, flipped, shuffled, subtracted, and even minced the brains of his hapless subjects, but always when he replaced what was left of their brains, their behavior returned to normal. 11

These findings and others turned Pietsch into a believer and attracted enough attention that his research became the subject of a segment on the television show

60 Minutes. He writes about this experience as well as giving detailed accounts of his experiments in his insightful book Shufflebrain.

The Mathematical Language of the Hologram

While the theories that enabled the development of the hologram were first formulated in 1947 by Dennis Gabor (who later won a Nobel Prize for his efforts), in the late 1960s and early 1970s Pribram's theory received even more persuasive experimental support. When Gabor first conceived the idea of holography he wasn't thinking about lasers. His goal was to improve the electron microscope, then a primitive and imperfect device. His approach was a mathematical one, and the mathematics he used was a type of calculus invented by an eighteenthcentury Frenchman named Jean B. J. Fourier.

Roughly speaking what Fourier developed was a mathematical way of converting any pattern, no matter how complex, into a language of simple waves. He also showed how these wave forms could be converted back into the original pattern. In other words, just as a television camera converts an image into electromagnetic frequencies and a television set converts those frequencies back into the original image, Fourier showed how a similar process could be achieved mathematically. The equations he developed to convert images into wave forms and back again are known as Fourier transforms.

Fourier transforms enabled Gabor to convert a picture of an object into the blur of interference patterns on a piece of holographic film. They also enabled him to devise a way of converting those interference patterns back into an image of the original object. In fact the special whole in every part of a hologram is one of the by-products that occurs when an image or pattern is translated into the Fourier language of wave forms.

Throughout the late 1960s and early 1970s various researchers contacted Pribram and told him they had uncovered evidence that the visual system worked as a kind of frequency analyzer. Since frequency is a measure of the number of oscillations a wave undergoes per second, this strongly suggested that the brain might be functioning as a hologram does.

But it wasn't until 1979 that Berkeley neurophysiologists Russell and Karen DeValois made the discovery that settled the matter. Research in the 1960s had shown that each brain cell in the visual cortex is geared to respond to a different pattern—some brain cells fire when the eyes see a horizontal line, others fire when the eyes see a vertical line, and so on. As a result, many researchers concluded that the brain takes input from these highly specialized cells called feature detectors, and somehow fits them together to provide us with our visual perceptions of the world.

Despite the popularity of this view, the DeValoises felt it was only a partial truth. To test their assumption they used Fourier's equations to convert plaid and checkerboard patterns into simple wave forms. Then they tested to see how the brain cells in the visual cortex responded to these new wave-form images. What they found was that the brain cells responded not to the original patterns, but to the

Fourier translations of the patterns. Only one conclusion could be drawn. The brain was using Fourier mathematics—the same mathematics holography employed—to convert visual images into the Fourier language of wave forms. 12

The DeValoises' discovery was subsequently confirmed by numerous other laboratories around the world, and although it did not provide absolute proof the brain was a hologram, it supplied enough evidence to convince Pribram his theory was correct. Spurred on by the idea that the visual cortex was responding not to patterns but to the frequencies of various wave forms, he began to reassess the role frequency played in the other senses.

It didn't take long for him to realize that the importance of this role had perhaps been overlooked by twentieth-century scientists. Over a century before the DeValoises' discovery, the German physiologist and physicist Hermann von Helmholtz had shown that the ear was a frequency analyzer. More recent research revealed that our sense of smell seems to be based on what are called osmic frequencies.

Bekesy's work had clearly demonstrated that our skin is sensitive to frequencies of vibration, and he even produced some evidence that taste may involve frequency analysis. Interestingly, Bekesy also discovered that the mathematical equations that enabled him to predict how his subjects would respond to various frequencies of vibration were also of the Fourier genre.

p. 28

The Dancer as Wave Form

But perhaps the most startling finding Pribram uncovered was Russian scientist Nikolai Bernstein's discovery that even our physical movements may be encoded in our brains in a language of Fourier wave forms. In the 1930s Bernstein dressed people in black leotards

FIGURE 6. Russian researcher Nikolai Bernstein painted white dots on dancers and filmed them dancing against a black background. When he converted their movements into a language of wave forms, he discovered they could be analyzed using Fourier mathematics, the same mathematics Gabor used to invent the hologram.

and painted white dots on their elbows, knees, and other joints. Then he placed them against black backgrounds and took movies of them doing various physical activities such as dancing, walking, jumping, hammering, and typing.

When he developed the film, only the white dots appeared, moving up and down and across the screen in various complex and flowing movements (see fig. 6). To quantify his findings he Fourier-analyzed the various lines the dots traced out and converted them into a language of wave forms. To his surprise, he discovered the wave forms contained hidden patterns that allowed him to predict his subjects' next movement to within a fraction of an inch.

When Pribram encountered Bernstein's work he immediately recognized its implications. Maybe the reason hidden patterns surfaced after Bernstein Fourier-analyzed his subject's movements was because that was how movements are stored in the brain. This was an exciting possibility, for if the brain analyzed movements by breaking them down into their frequency components, it explained the rapidity with which we learn many complex physical tasks. For instance, we do not learn to ride a bicycle by painstakingly memorizing every tiny feature of the process. We learn by grasping the whole flowing movement. The fluid wholeness that typifies how we learn so many physical activities is difficult to explain if our brains are storing information in a bit-by-bit manner. But it becomes much easier to understand if the brain is Fourier-analyzing such tasks and absorbing them as a whole.

The Reaction of the Scientific Community

Despite such evidence, Pribram's holographic model remains extremely controversial. Part of the problem is that there are many popular theories of how the brain works and there is evidence to support them all. Some researchers believe the distributed nature of memory can be explained by the ebb and flow of various brain chemicals.

Others hold that electrical fluctuations among large groups of neurons can account for memory and learning. Each school of thought has its ardent supporters, and it is probably safe to say that most scientists remain unpersuaded by Pribram's arguments. For example, neuropsychologist Frank Wood of the Bowman Gray School of Medicine in Winston-Salem, North Carolina, feels that "there are precious few experimental findings for which holography is the necessary, or even preferable, explanation. "13 Pribram is puzzled by statements such as Wood's and counters by noting that he currently has a book in press with well over 500 references to such data.

Other researchers agree with Pribram. Dr. Larry Dossey, former chief of staff at Medical City Dallas Hospital, admits that Pribram's theory challenges many long-held assumptions about the brain, but points out that "many specialists in brain function are attracted to the idea, if for no other reason than the glaring inadequacies of the present orthodox views. "14

Neurologist Richard Restak, author of the PBS series

The Brain, shares Dossey's opinion. He notes that in spite of overwhelming evidence that human abilities are holistically dispersed throughout the brain, most researchers continue to cling to the idea that function car be located in the brain in the same way that cities can be located on a map. Restak believes that theories based on this premise are not only "oversimplistic, " but actually function as "conceptual straitjackets" that keep us from recognizing the brain's true complexities. 15 He feels that "a hologram is not only possible but, at this moment, represents probably our best 'model' for brain functioning. "16

Pribram Encounters Bohm

As for Pribram, by the 1970s enough evidence had accumulated to convince him his theory was correct. In addition, he had taken his ideas into the laboratory and discovered that single neurons in the motor cortex respond selectively to a limited bandwidth of frequencies, a finding that further supported his conclusions. The question that began to bother him was, If the picture of reality in our brains is not a picture at all but a hologram, what is it a hologram of? The dilemma posed by this question is analogous to taking a Polaroid picture of a group of people sitting around a table and, after the picture develops, finding that, instead of people, there are only blurry clouds of interference patterns positioned around the table. In both cases one could rightfully ask, Which is the true reality, the seemingly objective world experienced by the observer/photographer or the blur of interference patterns recorded by the camera/brain?

Pribram realized that if the holographic brain model was taken to its logical conclusions, it opened the door on the possibility that objective reality—the world of coffee cups, mountain vistas, elm trees, and table lamps—might not even exist, or at least not exist in the way we believe it exists. Was it possible, he wondered, that what the mystics had been saying for centuries was true, reality was maya, an illusion, and what was out there was really a vast, resonating symphony of wave forms, a "frequency domain" that was transformed into the world as we know it only after it entered our senses?

Realizing that the solution he was seeking might lie outside the province of his own field, he went to his physicist son for advice. His son recommended he look into the work of a physicist named David Bohm. When Pribram did he was electrified. He not only found the answer to his question, but also discovered that according to Bohm, the entire universe was a hologram.

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The Cosmos as Hologram

One can't help but be astonished at the degree to which [bohm] has been able to break out of the tight molds of scientific conditioning and stand alone with a completely new and literally vast Idea, one which has both internal consistency and the logical power to explain widely diverging phenomena of physical experience from an entirely unexpected point of view. . . . It is a theory which is so intuitively satisfying that many people have felt that if the universe is not the way Bohm describes it, it ought to be.

—John P. Briggs and F. David Peat

Looking Glass Universe

The path that led Bohm to the conviction that the universe is structured like a hologram began at the very edge of matter, in the world of subatomic particles. His interest in science and the way things work blossomed early. As a young boy growing up in Wilkes-Barre, Pennsylvania, he invented a dripless tea kettle, and his father, a successful businessman, urged him to try to turn a profit on the idea. But after learning that the first step in such a venture was to conduct a door-todoorsurvey to test-market his invention, Bohm's interest in business waned.

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His interest in science did not, however, and his prodigious curiosity forced him to look for new heights to conquer. He found the most challenging height of all in the 1930s when he attended Pennsylvania State College, for it was there that he first became fascinated by quantum physics. It is an easy fascination to understand. The strange new land that physicists had found lurking in the heart of the atom contained things more wondrous than anything Cortes or Marco Polo ever encountered.

What made this new world so intriguing was that everything about it appeared to be so contrary to common sense. It seemed more like a land ruled by sorcery than an extension of the natural world, an Alice-in-Wonderland realm in which mystifying forces were the norm and everything logical had been turned on its ear.

One startling discovery made by quantum physicists was that if you break matter into smaller and smaller pieces you eventually reach a point where those pieces—electrons, protons, and so on—no longer possess the traits of objects. For example, most of us tend to think of an electron as a tiny sphere or a BB whizzing around, but nothing could be further from the truth. Although an electron can sometimes behave as if it were a compact little particle, physicists have found that

it literally possesses no dimension. This is difficult for most of us to imagine because everything at our own level of existence possesses dimension. And yet if you try to measure the width of an electron, you will discover it's an impossible task. An electron is simply not an object as we know it.

Another discovery physicists made is that an electron can manifest as either a particle or a wave. If you shoot an electron at the screen of a television that's been turned off, a tiny point of light will appear when it strikes the phosphorescent chemicals that coat the glass. The single point of impact the electron leaves on the screen clearly reveals the particlelike side of its nature.

But this is not the only form the electron can assume. It can also dissolve into a blurry cloud of energy and behave as if it were a wave spread out over space. When an electron manifests as a wave it can do things no particle can. If it is fired at a barrier in which two slits have been cut, it can go through both slits simultaneously. When wavelike electrons collide with each other they even create interference patterns. The electron, like some shapeshifter out of folklore, can manifest as either a particle or a wave.

This chameleonlike ability is common to all subatomic particles. It is also common to all things once thought to manifest exclusively as waves. Light, gamma rays, radio waves, X rays—all can change from waves to particles and back again. Today physicists believe that sub- atomic phenomena should not be classified solely as either waves or particles, but as a single category of somethings that are always somehow both. These somethings are called quanta,

and physicists believe they are the basic stuff from which the entire universe is made. *

Perhaps most astonishing of all is that there is compelling evidence that

the only time quanta ever manifest as particles is when we are looking at them. For instance, when an electron isn't being looked at, experimental findings suggest that it is always a wave. Physicists are able to draw this conclusion because they have devised clever strategies for deducing how an electron behaves when it is not being observed (it should be noted that this is only one interpretation of the evidence and is not the conclusion of all physicists; as we will see, Bohm himself has a different interpretation).

Once again this seems more like magic than the kind of behavior we are accustomed to expect from the natural world. Imagine owning a bowling ball that was only a bowling ball when you looked at it. If you sprinkled talcum powder all over a bowling lane and rolled such a "quantum" bowling ball toward the pins, it would trace a single line through the talcum powder while you were watching it. But if you blinked while it was in transit, you would find that for the second or two you were not looking at it the bowling ball stopped tracing a line and instead left a broad wavy strip, like the undulating swath of a desert snake as it moves sideways over the sand (see fig. 7).

Such a situation is comparable to the one quantum physicists encountered when they first uncovered evidence that quanta coalesce into particles only when they are being observed. Physicist Nick Herbert, a supporter of this interpretation, says this has sometimes caused him to imagine that behind his back the world is always "a radically ambiguous and ceaselessly flowing quantum soup. " But whenever he turns around and tries to see the soup, his glance instantly freezes it and turns it back into ordinary reality. He believes this makes us all a little like Midas, the legendary king who never knew the feel of silk or the caress of a human hand because everything he touched turned to gold. "Likewise humans can never experience the true texture of quantum reality, " says Herbert, "because everything we touch turns to matter. "

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'Quanta is the plural of quantum. One electron is a quantum. Several electrons are a group of quanta. The word quantum is also synonymous with wave particle, a term that is also used to refer to something that possesses both particle and wave aspects.

Bohm and Inter-connectedness

An aspect of quantum reality that Bohm found especially interesting was the strange state of interconnectedness that seemed to exist between apparently unrelated subatomic events. What was equally perplexing was that most physicists tended to attach little importance to the phenomenon. In fact, so little was made of it that one of the most famous examples of interconnectedness lay hidden in one of quantum physics's basic assumptions for a number of years before anyone noticed it was there.

That assumption was made by one of the founding fathers of quantum physics, the Danish physicist Niels Bohr. Bohr pointed out that if subatomic particles only come into existence in the presence of an observer, then it is also meaningless to speak of a particle's properties and characteristics as existing before they are observed. This was disturbing to many physicists, for much of science was based on discovering the properties of phenomena. But if the act of observation actually helped create such properties, what did that imply about the future of science?

One physicist who was troubled by Bohr's assertions was Einstein. Despite the role Einstein had played in the founding of quantum theory, he was not at all happy with the course the fledgling science

FIGURE 7. Physicists have found compelling evidence that the only time electrons and other "quanta" manifest as particles is when we are looking at them. At all other times they behave as waves. This is as strange as owning a bowling ball that traces a single line down the lane while you are watching it, but leaves a wave Pattern every time you blink your eyes.

had taken. He found Bohr's conclusion that a particle's properties don't exist until they are observed particularly objectionable because, when combined with another of quantum physics's findings, it implied that subatomic particles were interconnected in a way Einstein simply didn't believe was possible.

That finding was the discovery that some subatomic processes result in the creation of a pair of particles with identical or closely related properties. Consider an extremely unstable atom physicists call positronium. The positronium atom is composed of an electron and a positron (a positron is an electron with a positive charge). Because a positron is the electron's antiparticle opposite, the two eventually annihilate each other and decay into two quanta of light or "photons" traveling in opposite directions (the capacity to shapeshift from one kind of particle to another is just another of a quantum's abilities). According to quantum physics no matter how far apart the photons travel, when they are measured they will always be found to have identical angles of

polarization. (Polarization is the spatial orientation of the photon's wavelike aspect as it travels away from its point of origin. )

In 1935 Einstein and his colleagues Boris Podolsky and Nathan Rosen published a now famous paper entitled "Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?" In it they explained why the existence of such twin particles proved that Bohr could not possibly be correct. As they pointed out, two such particles, say, the photons emitted when positronium decays, could be produced and allowed to travel a significant distance apart. * Then they could be intercepted and their angles of polarization measured. If the polarizations are measured at precisely the same moment and are found to be identical, as quantum physics predicts, and if Bohr was correct and properties such as polarization do not coalesce into existence until they are observed or measured, this suggests that somehow the two photons must be instantaneously communicating with each other so they know which angle of polarization to agree upon. The problem is that according to Einstein's special theory of relativity, nothing can travel faster than the speed of light, let alone travel instantaneously, for that would be tantamount to breaking the time

'Positronium decay is not the subatomic process Einstein and his colleagues employed in their thought experiment, but is used here because it is easy to visualize.

barrier and would open the door on all kinds of unacceptable paradoxes. Einstein and his colleagues were convinced that no "reasonable definition" of reality would permit such faster-than-light interconnections to exist, and therefore Bohr had to be wrong. 3 Their argument is now known as the Einstein-Podolsky-Rosen paradox, or EPR paradox for short.

Bohr remained unperturbed by Einstein's argument. Rather than believing that some kind of faster-than-light communication was taking place, he offered another explanation. If subatomic particles do not exist until they are observed, then one could no longer think of them as independent "things. " Thus Einstein was basing his argument on an error when he viewed twin particles as separate. They were part of an indivisible system, and it was meaningless to think of them otherwise.

In time most physicists sided with Bohr and became content that his interpretation was correct. One factor that contributed to Bohr's triumph was that quantum physics had proved so spectacularly successful in predicting phenomena, few physicists were willing even to consider the possibility that it might be faulty in some way. In addition, when Einstein and his colleagues first made their proposal about twin particles, technical and other reasons prevented such an experiment from actually being performed. This made it even easier to put out of mind. This was curious, for although Bohr had designed his argument to counter Einstein's attack on quantum theory, as we will see, Bohr's view that subatomic systems are indivisible has equally profound implications for the nature of reality. Ironically, these implications were also ignored, and once again the potential importance of interconnectedness was swept under the carpet

p.37

A Living Sea of Electrons

During his early years as a physicist Bohm also accepted Bohr's position, but he remained puzzled by the lack of interest Bohr and his followers displayed toward interconnectedness. After graduating from Pennsylvania State College, he attended the University of California at Berkeley, and before receiving his doctorate there in 1943, he worked at the Lawrence Berkeley Radiation Laboratory. There he encountered another striking example of quantum interconnectedness.

At the Berkeley Radiation Laboratory Bohm began what was to become his landmark work on plasmas. A plasma is a gas containing a high density of electrons and positive ions, atoms that have a positive charge. To his amazement he found that once they were in a plasma, electrons stopped behaving like individuals and started behaving as if they were part of a larger and interconnected whole. Although their individual movements appeared random, vast numbers of electrons were able to produce effects that were surprisingly well-organized. Like some amoeboid creature, the plasma constantly regenerated itself and enclosed all impurities in a wall in the same way that a biological organism might encase a foreign substance in a cyst.

4 So struck was Bohm by these organic qualities that he later remarked he'd frequently had the impression the electron sea was "alive. "5

In 1947 Bohm accepted an assistant professorship at Princeton University, an indication of how highly he was regarded, and there he extended his Berkeley research to the study of electrons in metals. Once again he found that the seemingly haphazard movements of individual electrons managed to produce highly organized overall effects.

Like the plasmas he had studied at Berkeley, these were no longer situations involving two particles, each behaving as if it knew what the other was doing, but entire oceans of particles, each behaving as if it knew what untold trillions of others were doing. Bohm called such collective movements of electrons

plasmons, and their discovery established his reputation as a physicist.

Bohm's Disillusionment

Both his sense of the importance of interconnectedness as well as his growing dissatisfaction with several of the other prevailing views in physics caused Bohm to become increasingly troubled by Bohr's interpretation of quantum theory. After three years of teaching the subject at Princeton he decided to improve his understanding by writing a textbook. When he finished he found he still wasn't comfortable with what quantum physics was saying and sent copies of the book to both Bohr and Einstein to ask for their opinions. He got no answer from Bohr, but Einstein contacted him and said that since they were both at Princeton they should meet and discuss the book.

In the first of what was to turn into a six-month series of spirited conversations, Einstein enthusiastically told Bohm that he had never seen quantum theory presented so clearly. Nonetheless, he admitted he was still every bit as dissatisfied with the theory as was Bohm. During their conversations the two men discovered they each had nothing but admiration for the theory's ability to predict phenomena.

What bothered them was that it provided no real way of conceiving of the basic structure of the world. Bohr and his followers also claimed that quantum theory was complete and it was not possible to arrive at any clearer understanding of what was going on in the quantum realm. This was the same as saying there was no deeper reality beyond the subatomic landscape, no further answers to be found, and this, too, grated on both Bohm and Einstein's philosophical sensibilities. Over the course of their meetings they discussed many other things, but these points in particular gained new prominence in Bohm's thoughts.

Inspired by his interactions with Einstein, he accepted the validity of his misgivings about quantum physics and decided there. had to be an alternative view. When his textbook

Quantum Theory was published in 1951 it was hailed as a classic, but it was a classic about a subject to which Bohm no longer gave his full allegiance. His mind, ever active and always looking for deeper explanations, was already searching for a better way of describing reality.

A New Kind of Field and the

Bullet That Killed Lincoln

After his talks with Einstein, Bohm tried to find a workable alternative to Bohr's interpretation. He began by assuming that particles such as electrons

do exist in the absence of observers. He also assumed that there was a deeper reality beneath Bohr's inviolable wall, a subquantum level that still awaited discovery by science. Building on these premises he discovered that simply by proposing the existence of a new kind of field on this subquantum level he was able to explain the findings of quantum physics as well as Bohr could. Bohm called his proposed new field the quantum potential and theorized that, like gravity, it pervaded all of space. However, unlike gravitational fields, magnetic fields, and so on, its influence did not diminish with distance. Its effects were subtle, but it was equally powerful everywhere. Bohm published his alternative interpretation of quantum theory in 1952.

Reaction to his new approach was mainly negative. Some physicists were so convinced such alternatives were impossible that they dismissed his ideas out of hand. Others launched passionate attacks against his reasoning. In the end virtually all such arguments were based primarily on philosophical differences, but it did not matter. Bohr's point of view had become so entrenched in physics that Bohm's alternative was looked upon as little more than heresy.

Despite the harshness of these attacks Bohm remained unswerving in his conviction that there was more to reality than Bohr's view allowed. He also felt that science was much too limited in its outlook when it came to assessing new ideas such as his own, and in a 1957 book entitled

Causality and Chance in Modern Physics, he examined several of the philosophical suppositions responsible for this attitude.

One was the widely held assumption that it was possible for any single theory, such as quantum theory, to

be complete. Bohm criticized this assumption by pointing out that nature may be infinite. Because it would not be possible for any theory to completely explain something that is infinite, Bohm suggested that open scientific inquiry might be better served if researchers refrained from making this assumption.

In the book he argued that the way science viewed causality was also much too limited. Most effects were thought of as having only one or several causes. However, Bohm felt that an effect could have an infinite number of causes. For example, if you asked someone what caused Abraham Lincoln's death, they might answer that it was the bullet in John Wilkes Booth's gun. But a complete list of all the causes that contributed to Lincoln's death would have to include all of the events that led to the development of the gun, all of the factors that caused Booth to want to kill Lincoln, all of the steps in the evolution of the human race that allowed for the development of a hand capable of holding a gun, and so on, and so on. Bohm conceded that most of the time one could ignore the vast cascade of causes that had led to any given effect, but he still felt it was important for scientists to remember that no single cause-and-effect relationship was ever really separate from the universe as a whole.

If You Want to Know Where You Are,

Ask the Nonlocals

During this same period of his life Bohm also continued to refine his alternative approach to quantum physics. As he looked more carefully into the meaning of the quantum potential he discovered it had a number of features that implied an even more radical departure from orthodox thinking. One was the importance of wholeness. Classical science had always viewed the state of a system as a whole as merely the result of the interaction of its parts. However, the quantum potential stood this view on its ear and indicated that the behavior of the parts was actually organized by the whole. This not only took Bohr's assertion that subatomic particles are not independent "things, " but are part of an indivisible system one step further, but even suggested that wholeness was in some ways the more primary reality.

It also explained how electrons in plasmas (and other specialized states such as superconductivity) could behave like interconnected wholes. As Bohm states, such "electrons are not scattered because, through the action of the quantum potential, the whole system is undergoing a co-ordinated movement more like a ballet dance than like a crowd of unorganized people. " Once again he notes that "such quantum wholeness of activity is closer to the organized unity of functioning of the parts of a living being than it is to the kind of unity that is obtained by putting together the parts of a machine. "

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An even more surprising feature of the quantum potential was its implications for the nature of location. At the level of our everyday lives things have very specific locations, but Bohm's interpretation of quantum physics indicated that at the subquantum level, the level in which the quantum potential operated, location ceased to exist All points in space became equal to all other points in space, and it was meaningless to speak of anything as being separate from anything else. Physicists call this property "nonlocality. "

The nonlocal aspect of the quantum potential enabled Bohm to explain the connection between twin particles without violating special relativity's ban against anything traveling faster than the speed of light. To illustrate how, he offers the following analogy: Imagine a fish swimming in an aquarium. Imagine also that you have never seen a fish or an aquarium before and your only knowledge about them comes from two television cameras, one directed at the aquarium's front and the other at its side. When you look at the two television monitors you might mistakenly assume that the fish on the screens are separate entities. After all, because the cameras are set at different angles, each of the images will be slightly different. But as you continue to watch you will eventually realize there is a relationship between the two fish. When one turns, the other makes a slightly different but corresponding turn. When one faces the front, the other faces the side, and so on. If you are unaware of the full scope of the situation, you might wrongly conclude that the fish are instantaneously communicating with one another, but this is not the case. No communication is taking place because at a deeper level of reality, the reality of the aquarium, the two fish are actually one and the same. This, says Bohm, is precisely what is going on between particles such as the two photons emitted when a positronium atom decays (see fig. 8). Indeed, because the quantum potential permeates all of space, all

FIGURE 8. Bohm believes subatomic particles are connected in the same way as the images of the fish on the two television monitors. Although particles such as electrons appear to be separate from one another, on a deeper level of reality—a level analogous to the aquarium—they are actually just different aspects of a deeper cosmic unity.

particles are nonlocally interconnected. More and more the picture of reality Bohm was developing was not one in which subatomic particles were separate from one another and moving through the void of space, but one in which all things were part of an unbroken web and embedded in a space that was as real and rich with process as the matter that moved through it. Bohm's ideas still left most physicists unpersuaded, but did stir the interest of a few. One of these was John Stewart Bell, a theoretical physicist at CERN, a center for peaceful atomic research near Geneva, Switzerland. Like Bohm, Bell had also become discontented with quantum theory and felt there must be some alternative. As he later said, "Then in 1952 I saw Bohm's paper. His idea was to complete quantum mechanics by saying there are certain variables in addition to those which everybody knew about. That impressed me very much. "

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Bell also realized that Bohm's theory implied the existence of nonlocality and wondered if there was any way of experimentally verifying its existence. The question remained in the back of his mind for years until a sabbatical in 1964 provided him with the freedom to focus his full attention on the matter. Then he quickly came up with an elegant mathematical proof that revealed how such an experiment could be performed. The only problem was that it required a level of technologicalprecision that was not yet available. To be certain that particles, such as those in the EPR paradox, were not using some normal means of communication, the basic operations of the experiment had to be performed in such an infinitesimally brief instant that there wouldn't even be enough time for a ray of light to cross the distance separating the two particles. This meant that the instruments used in the experiment had to perform all of the necessary operations within a few thousand-millionths of a second.

Enter the Hologram

By the late 1950s Bohm had already had his run-in with McCarthyism and had become a research fellow at Bristol University, England. There, along with a young research student named Yakir Aharonov, he discovered another important example of nonlocal interconnectedness. Bohm and Aharonov found that under the right circumstances an electron is able to "feel" the presence of a magnetic field that is a region where there is zero probability of finding the electron. This phenomenon is now known as the Aharonov-Bohm effect, and when the two men first published their discovery, many physicists did not believe such an effect was possible. Even today there is enough residual skepticism that, despite confirmation of the effect in numerous experiments, occasionally papers still appear arguing that it doesn't exist

As always, Bohm stoically accepted his continuing role as the voice in the crowd that bravely notes the emperor has no clothes. In an interview conducted some years later he offered a simple summation of the philosophy underlying his courage: "In the long run it is far more dangerous to adhere to illusion than to face what the actual fact

is-"8

Nevertheless, the limited response to his ideas about wholeness and nonlocality and his own inability to see how to proceed further caused him to focus his attention in other directions. In the 1960s this led him to take a closer look at

order. Classical science generally divides things into two categories: those that possess order in the arrangement of their parts and those whose parts are disordered, or random, in arrangement. Snowflakes, computers, and living things are all ordered. The pattern a handful of spilled coffee beans makes on the floor, the debris left by an explosion, and a series of numbers generated by a roulette wheel are all disordered.

As Bohm delved more deeply into the matter he realized there were also different degrees of order. Some things were much more ordered than other things, and this implied that there was, perhaps, no end to the hierarchies of order that existed in the universe. From this it occurred to Bohm that maybe things that we perceive as disordered aren't disordered at all. Perhaps their order is of such an "indefinitely high degree" that they only appear to us as random (interestingly, mathematicians are unable to prove randomness, and although some sequences of numbers are categorized as random, these are only educated guesses).

While immersed in these thoughts, Bohm saw a device on a BBC television program that helped him develop his ideas even further. The device was a specially designed jar containing a large rotating cylinder. The narrow space between the cylinder and the jar was filled with glycerine—a thick, clear liquid—and floating motionlessly in the glycerine was a drop of ink. What interested Bohm was that when the handle on the cylinder was turned, the drop of ink spread out through The Cosmos as Hologram

45 the syrupy glycerine and seemed to disappear. But as soon as the handle was turned back in the opposite direction, the faint tracing of ink slowly collapsed upon itself and once again formed a droplet (see fig. 9).

Bohm writes, "This immediately struck me as very relevant to the question of order, since, when the ink drop was spread out, it still had a 'hidden' (i. e., nonmanifest) order that was revealed when it was reconstituted. On the other hand, in our usual language, we would say that the ink was in a state of 'disorder' when it was diffused through the glycerine. This led me to see that new notions of order must be involved here. "

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FIGURE 9. When a drop of ink is placed in a jar full of glycerine and a cylinder inside the jar is turned, the drop appears to spread out and disappear. But when the cylinder is turned in the opposite direction, the drop comes back together. Bohm uses this phenomenon as an example of how order can be either manifest (explicit) or hidden (implicit).

Because all such things are aspects of the holomovement, he feels it has no meaning to speak of consciousness and matter as interacting. In a sense, the observer

is the observed. The observer is also the measuring device, the experimental results, the laboratory, and the breeze that blows outside the laboratory. In fact, Bohm believes that consciousness is a more subtle form of matter, and the basis for any relationship between the two lies not in our own level of reality, but deep in the implicate order. Consciousness is present in various degrees of enfoldment and unfoldment in all matter, which is perhaps why plasmas possess some of the traits of living things. As Bohm puts it, "The ability of form to be active is the most characteristic feature of mind, and we have something that is mindlike already with the electron. "11

Similarly, he believes that dividing the universe up into living and nonliving things also has no meaning. Animate and inanimate matter are inseparably interwoven, and life, too, is enfolded throughout the totality of the universe. Even a rock is in some way alive, says Bohm, for life and intelligence are present not only in all of matter, but in "energy, " "space, " "time, " "the fabric of the entire universe, " and everything else we abstract out of the holomovement and mistakenly view as separate things.

The idea that consciousness and life (and indeed all things) are ensembles enfolded throughout the universe has an equally dazzling flip side. Just as every portion of a hologram contains the image of the whole, every portion of the universe enfolds the whole. This means that if we knew how to access it we could find the Andromeda galaxy in the thumbnail of our left hand. We could also find Cleopatra meeting Caesar for the first time, for in principle the whole past and implications for the whole future are also enfolded in each small region of space and time. Every cell in our body enfolds the entire cosmos. So does every leaf, every raindrop, and every dust mote, which gives new meaning to William Blake's famous poem:

To see a World in a Grain of Sand

And a Heaven in a Wild Flower,

Hold Infinity in the palm of your hand

And Eternity in an hour.

The Energy of a Trillion Atomic Bombs in

Every Cubic Centimeter of Space

If our universe is only a pale shadow of a deeper order, what else lies hidden, enfolded in the warp and weft of our reality? Bohm has a suggestion. According to our current understanding of physics, every region of space is awash with different kinds of fields composed of waves of varying lengths. Each wave always has at least some energy. When physicists calculate the minimum amount of energy a wave can possess, they find that

every cubic centimeter of empty space contains more energy than the total energy of all the matter in the known universe!

Some physicists refuse to take this calculation seriously and believe it must somehow be in error. Bohm thinks this infinite ocean of energy does exist and tells us at least a little about the vast and hidden nature of the implicate order. He feels most physicists ignore the existence of this enormous ocean of energy because, like fish who are unaware of the water in which they swim, they have been taught to focus primarily on objects embedded in the ocean, on matter.

Bohm's view that space is as real and rich with process as the matter that moves through it reaches full maturity in his ideas about the implicate sea of energy. Matter does not exist independently from the sea, from so-called empty space. It is a part of space. To explain what he means, Bohm offers the following analogy: A crystal cooled to absolute zero will allow a stream of electrons to pass through it without scattering them. If the temperature is raised, various flaws in the crystal will lose their transparency, so to speak, and begin to scatter electrons. From an electron's point of view such flaws would appear as pieces of "matter" floating in a sea of nothingness, but this is not really the case. The nothingness and the pieces of matter do not exist independently from one another. They are both part of the same fabric, the deeper order of the crystal.

Bohm believes the same is true at our own level of existence. Space is not empty. It

is full, a plenum as opposed to a vacuum, and is the ground for the existence of everything, including ourselves. The universe is not separate from this cosmic sea of energy, it is a ripple on its surface, a comparatively small "pattern of excitation" in the midst of an unimaginably vast ocean. "This excitation pattern is relatively autonomous and gives rise to approximately recurrent, stable and

separable projections into a three-dimensional explicate order of manifestation, " states Bohm. 12 In other words, despite its apparent materiality and enormous size, the universe does not exist in and of itself, but is the stepchild of something far vaster and more ineffable. More than that, it is not even a major production of this vaster something, but is only a passing shadow, a mere hiccup in the greater scheme of things.

This infinite sea of energy is not all that is enfolded in the implicate order. Because the implicate order is the foundation that has given birth to everything in our universe, at the very least it also contains every subatomic particle that has been or will be; every configuration of matter, energy, life, and consciousness that is possible, from quasars to the brain of Shakespeare, from the double helix, to the forces that control the sizes and shapes of galaxies. And even this is not all it may contain. Bohm concedes that there is no reason to believe the implicate order is the end of things. There may be other undreamed of orders beyond it, infinite stages of further development.

Experimental Support for Bohm's

Holographic Universe

A number of tantalizing findings in physics suggest that Bohm may be correct. Even disregarding the implicate sea of energy, space is filled with light and other electromagnetic waves that constantly crisscross and interfere with one another. As we have seen, all particles are also waves. This means that physical objects and everything else we perceive in reality are composed of interference patterns, a fact that has undeniable holographic implications.

Another compelling piece of evidence comes from a recent experimental inding. In the 1970s the technology became available to actually perform the two-particle experiment outlined by Bell, and a number of different researchers attempted the task. Although the findings were promising, none was able to produce conclusive results. Then in 1982 physicists Alain Aspect, Jean Dalibard and Gerard Roger of the Institute of Optics at the University of Paris succeeded. First they produced a series of twin photons by heating calcium atoms with lasers. Then they allowed each photon to travel in opposite directions through 6. 5 meters of pipe and pass through special filters that directed them toward one of two possible polarization analyzers. It took each filter 10 billionths of a second to switch between one analyzer or the other, about 30 billionths of a second less than it took for light to travel the entire 13 meters separating each set of photons. In this way Aspect and his colleagues were able to rule out any possibility of the photons communicating through any known physical process. Aspect and his team discovered that, as quantum theory predicted, each photon was still able to correlate its angle of polarization with that of its twin. This meant that either Einstein's ban against fasterthan- light communication was being violated, or the two photons were nonlocally connected. Because most physicists are opposed to admitting faster-than-light processes into physics, Aspect's experiment is generally viewed as virtual proof that the connection between the two photons is nonlocal. Furthermore, as physicist Paul Davis of the University of Newcastle upon Tyne, England, observes, since

all particles are continually interacting and separating, "the nonlocal aspects of quantum systems is therefore a general property of nature. "13

Aspect's findings do not prove that Bohm's model of the universe is correct, but they do provide it with tremendous support. Indeed, as mentioned, Bohm does not believe any theory is correct in an absolute sense, including his own. All are only approximations of the truth, finite maps we use to try to chart territory that is both infinite and indivisible. This does not mean he feels his theory is not testable. He is confident that at some point in the future techniques will be developed which will allow his ideas to be tested (when Bohm is criticized on this point he notes that there are a number of theories in physics, such as "superstring theory, " which will probably not be testable for several decades).

The Reaction of the Physics Community

Most physicists are skeptical of Bohm's ideas. For example, Yale physicist Lee Smolin simply does not find Bohm's theory "very compelling, physically. "

14 Nonetheless, there is an almost universal respect for Bohm's intelligence. The opinion of Boston University physicist Abner Shimony is representative of this view. "I'm afraid I just don't understand his theory. It is certainly a metaphor and the question is how

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