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Words like "local" and "nearby" and "cluster" are highly figurative, in this context. If M31 can be said to be "nearby," then Neptune, whose orbit averages some 3 billion miles from the Sun, or 2.9 billion miles from the Earth, is practically on the doorstep. For perspective on the exaggeration of the figure "nearby" when applied to M31's distance, consider this: it takes light, traveling at about 186,000 miles per second, roughly 2.2 million years to travel from the edge of M31 to the Earth, and just over 4 hours to travel from Neptune to the Earth. It takes about 8 minutes for light to travel 93 million miles from the Sun to the Earth. In 1 second a photon of light can travel around the Earth about 7¼ times. Despite the fact that we can see M31 on a clear moonless night, or that we can see the Milky Way spreading across the sky, billions and billions of stars flowing through Cassiopeia and Cygnus on autumn nights, we comprehend nothing directly about them. The structures and processes which give numbers like "2.2 million light years" are abstractions. They are such incomprehensible abstractions that they can only be understood in terms of everyday reality: because a quasar is thought to be 15 billion light years away, M31 is "nearby." Because one natural object has a mass of over 400 billion Suns, and another has a mass of about a million Suns, the latter is a "dwarf." A star hundreds of times bigger than the Sun, on the other hand, is a "red giant." Jupiter and Saturn are the solar system's "gas giants," although they are pinpoints compared to red giants like Arcturus and Betelgeuse. The descriptive words of astronomy are all metaphorical, contextual and relative. Even the word "galaxy" is inherently metaphorical: it is derived from the Greek word gala, which means milk. A more abstract -- though still figurative -- scientific word like "local" represents no real reality. The distances and sizes of galaxies are both local and unlocal, real and unreal, at the same time: they are seen directly as patches of light, mainly through instruments, and yet what they are believed actually to be is really nothing like what is directly perceived. The experience of a galaxy is the experience of immense nuclear fires, and pervasive gravity, and incomprehensible quanta of velocity and nothingness, and strong-nuclear-force collapse; it is inhuman and unreal to us. It is a stupefying problem to wonder what it would be like to be a galaxy. It is too direct a question. * * * The most surreal world of all is the local world. In the context of photons and galaxies, "locality" signifies both proximity and activity, neither of which can be comprehended in everyday terms. For galaxies, "local" means distances of anywhere between 160,000 and one hundred million light years. "Local" means the aggregations of aggregations of stars which are connected partly by their gravitational pull on each other and partly by light traveling between them, eerily supplying information to minds which can represent the information, but cannot experience the information itself. For subatomic particles, "local" means, roughly, the condition of being connected by forces which can be represented by everyday metaphors. Subatomic particles and galaxies are hypothesized not to act spookily at a distance, but to be bound by forces such as gravity and electro-magnetism (light) which operate more or less inside the bounds of our ability to picture them in human terms. Unfortunately, the Einstein-Rosen-Podolsky experiment contradicts this hypothesis, and Einstein's phrase, "spooky action at a distance," is simply an admission that something is not being understood. That is, something is happening which cannot be represented in either the direct terms of rational science or the indirect terms of metaphor. Something is happening which escapes our imagination. The phrase "15 billion light years," I want to say, is similar to the phrase "spooky action at distance." "Superluminal interconnectedness" is as unreal an abstraction as a time-space figure purporting to describe the width of the universe. Yet as unreal as both things are, they are also real. The difficulty with speaking of galaxies and the universe is the same difficulty as speaking of subatomic particles: they cannot be thought of as objects, or substances. They are more like activities, despite their surreal appearance of having some kind of physicality. The inherent surreality of galaxies is virtually identical to the inherent paradoxical properties of light. Light can be spoken of in two ways, or both at the same time: as particle or wave. If it is a particle, there is a word, "photon," to represent the particle. If it is a wavethere is really no word to describe the substance of a wave. A wave is more in the nature of an activity. When the attempt is made to speak of light as both wave and particle together, the term "pilot wave" is sometimes used. |
M31 |
This also does not help. What is a pilot wave? What is a photon? What is a galaxy? What is a quasar? What is a star? What is a human being? Plato suggested, some 2400 years ago, that every human being was at the time of creation appointed to a star, as the Demiurge-Creator had made as many stars as there were souls, and that after lifetimes of incarnations in bodies, experiencing human sensations and feelings, "He who lived well during his appointed time was to return and dwell in his native star, and there he would have a blessed and congenial existence" (Timaeus 42b). In a sense Plato's metaphorical description of the journey of human souls is a kind of allegory for the quantum idea of the non-local: everything is interconnected, it is spooky action at a distance, through time. In the seventeenth century Kepler, Galileo and Descartes tried to make a language that became decreasingly metaphorical, or indirect, in order to deal rationally with previously unknown direct phenomena. In the twentieth century, the language of science has gradually become decreasingly rational, or direct, and increasingly metaphorical, or indirect. It seems to describe a surreal universe because its words reflect two contradictory views: one which seems everyday and real, with objects obeying classical physical laws, and another which seems extraordinary and unreal, with classically impossible activity or size. One world seems filled with comprehen-sible objects, another filled with incomprehensible activities. A language which seeks to discuss activities needs to overcome its compulsion to discuss objects. A language which cues itself on activities must necessarily congeal the apparently contradictory complementarity principle of Neils Bohr: an experiment is not an aggregation of parts - observer, observed, instrument -- but an activity in which the parts inevitably complement each other's participation. The language of activity is the language of the dream world. In dreams, there are no real objects, only the events of figures, and the entire experience of a dream is of an activity in sleep. And simultaneously it is significantly interconnected with objective reality through its familiar images, like a roll of film exposed once, and lost, and unwittingly exposed again years later by the same person. Photons of light, may I say, course between the Milky Way and M31 in waves, conveying information, instantly, between their twins and, across two million light years, between localities. Our knowledge of these activities, to speak beyond the confines of the Freudian mind and rational language, is intuitive. No one knows or comprehends how intuition works. Yet Plato understood that the world was made of tiny triangles -- a precursor of Democritus' atoms -- long before scanning-tunneling electron microscopes created images of triangular silicon atoms. And Kepler understood that planets traveled elliptical orbits before there were Voyager spacecrafts. Einstein understood that time could expand and contract before there were atomic clocks. Edwin Hubble understood that galaxies existed out beyond the reaches of the Milky Way before there were space telescopes. They all described reality through some sort of non-local communication between the mind and the universe itself. The language of activities interconnects abstractly with the language of objects at the human intuition. There is no reason to believe, in the worlds of Plato's stars and J.S. Bell's interconnected photons, that a galaxy is not a living being. There is no reason to believe that -- observed, observer and instrument taken together, or signified, signifier and speaker taken together -- we cannot or have not communicated with M31. The activities of the universe, it seems, are localized and nonlocalized inside the human mind. The universe, like words, appears to be the mind turned inside out. appears to be the mind turned inside out. |
© Dana Wilde 2007; Alexandria I, 1991 |
Galaxies & Photons |