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Single Quote: Robert B. Laughlin

[Extracted by Lynn C. Rees]

From A Different Universe: Reinventing Physics from the Bottom Down (2006) by Robert B. Laughlin:

The transition to the Age of Emergence brings to an end the myth of the absolute power of mathematics. This myth is still entrenched in our culture, unfortunately, a fact revealed routinely in the press and popular publications promoting the search for ultimate laws as the only scientific activity worth pursuing, notwithstanding massive and overwhelming experimental evidence that exactly the opposite is the case. We can refute the reductionist myth by demonstrating that rules are correct and then challenging very smart people to predict things with them. Their inability to do so is similar to the difficulty the Wizard of Oz has in returning Dorothy to Kansas. He can do it in principle, but there are a few pesky technical details to be worked out. One must be satisfied in the interim with empty testimonials and exhortations to pay no attention to the man behind the curtain. The real problem is that Oz is a different universe from Kansas and that getting from one to the other makes no sense. The myth of collective behavior following from the law is, as a practical matter, exactly backward. Law instead follows from collective behavior, as do things that flow from it. such as logic and mathematics. The reason our minds can anticipate and master what the physical world does is not because we are geniuses but because nature facilitates understanding by organizing itself and generating law.

An important difference between the present age [i.e. the Age of Emergence] and the age just past [i.e the Age of Reductionism] is the awareness that there are evil laws as well as good ones. Good laws, such as rigidity or quantum hydrodynamics, create mathematical predictive power through protection, the insensitivity of certain measured quantities to sample imperfections or computational errors. Were the world a happy place containing only good laws, it would indeed be true that mathematics was always predictive, and that mastering nature would always boil down to acquiring sufficiently large and powerful computers. Protection would heal all errors. But in the world we actually inhabit, dark laws abound, and they destroy predictive power by exacerbating errors and making measured quantities wildly sensitive to uncontrollable external factors. In the Age of Emergence it is essential to be on the lookout for dark laws and artfully steer clear of them, since failure to do so leads one into delusional traps. One such trap is inadvertently crossing a Barrier of Relevance, thereby generating multiple ostensibly logical paths that begin with nearly identical premises and reach wildly different conclusions. When this effect occurs it politicizes the discussion by generating alternative “explanations” for things that cannot be distinguished by experiment. Another trap is the hunt for the Deceitful Turkey, the mirage law that always manages to be just out of focus and just beyond reach, no matter how much the measurement technology is improved. Ambiguities generated by dark law also facilitate fraud, in that they allow a thing to be labeled quantitative and scientific when it is, in fact, so sensitive to the whim of the measurer that it is effectively an opinion.

The Greek pantheon came into being through a series of political compromises in which one tribe or group, prevailing over another in warfare, would exercise its authority not by wiping out the gods of the losers, which was too difficult, but by making those gods subordinate to their own. The ancient Greek myths are thus allegories of actual historical events that took place in the early days of consolidation of Greek civilization. While the “experiment” in that case was war, and the “truth” it revealed was some political reality, the psychological elements for inventing mythological laws were the same as those we use today to identify physical ones. You may feel that both are pathological human behaviors, but I prefer the more physical view that politics, and human society generally, grow out of nature and are really sophisticated high-level versions of primitive physical phenomena. In other words, politics is an allegory of physics, not the reverse. Either way, however, the similarity reminds us that once science becomes political it is indistinguishable from state religion. Under a system of truth by consensus one expects false gods to be systematically enshrined in the pantheon as a matter of expedience, and the cosmogony on occasion to become Fictional, just as occurred in ancient Greece, and for the same reasons.

Greek creation myths satirize many things in modern life, particularly cosmological theories. Exploding things, such as dynamite or the big bang, are unstable. Theories of explosions, including the first picoseconds of the big bang, thus cross Barriers of Relevance and are inherently unfalsiable, notwithstanding widely cited supporting “evidence” such as isotopic abundances at the surfaces of stars and the cosmic microwave background anisotropy. One might as well claim to infer the properties of atoms from the storm damage of a hurricane. Beyond the big bang we have really unfalsifable concepts of budding little baby universes with different properties that must have been created before the infationary epoch, but which are now fundamentally undetectable due to being beyond the light horizon. Beyond even that we have the anthropic principle—the “explanation” that the universe we can see has the properties it does by virtue of our being in it. It is fun to imagine what Voltaire might have done with this material. In the movie Contact the Jodie Foster heroine suggests to her boyfriend that God might have been created by humans to compensate for their feelings of isolation and vulnerability in the vastness of the universe. She would have been more on target had she talked about unfalsifiable theories of the origin of the universe. The political dynamic of such theories and those of the ancient Greeks is one and the same.

The political nature of cosmological theories explains how they could so easily amalgamate with string theory, a body of mathematics with which they actually have very little in common. String theory is the study of an imaginary kind of matter built out of extended objects, strings, rather than point particles, as all known kinds of matter—including hot nuclear matter—have been shown experimentally to be. String theory is immensely fun to think about because so many of its internal relationships are unexpectedly simple and beautiful. It has no practical utility, however, other than to sustain the myth of the ultimate theory. There is no experimental evidence for the existence of strings in nature, nor does the special mathematics of string theory enable known experimental behavior to be calculated or predicted more easily. Moreover, the complex spectroscopic properties of space accessible with today’s mighty accelerators are accountable in string theory only as “low-energy phenomenology”- a pejorative term for transcendent emergent properties of matter impossible to calculate from first principles. String theory is, in fact, a textbook case of a Deceitful Turkey, a beautiful set of ideas that will always remain just barely out of reach. Far from a wonderful technological hope for a greater tomorrow. it is instead the tragic consequence of an obsolete belief system—in which emergence plays no role and dark law does not exist.

[…]

The painful echoes of ancient Greece in modern science illustrate why we cannot live with uncertainty in the Age of Emergence. at least for very long. One often hears that we must do so, since the master laws do not matter and the little subsidiary ones are too expensive to ferret out, but this argument is exactly backward. In times of increased subtlety one needs more highly quantitative measurements, not fewer. A measurement that cannot be done accurately, or that cannot be reproduced even if it is accurate, can never be divorced from politics and must therefore generate mythologies. The more such shades of meaning there are, the less scientific the discussion becomes. Accurate measurement in this sense is scientific law and a milieu in which accurate measurement is impossible is lawless.

8 Responses to “Single Quote: Robert B. Laughlin”

  1. Madhu Says:

    “A measurement that cannot be done accurately, or that cannot be reproduced even if it is accurate, can never be divorced from politics and must therefore generate mythologies.”
    .
    COIN = string theory…. 

  2. Lynn C. Rees Says:

    @Madhu: Exactly right

  3. Grurray Says:

    Steven Hawking asked this question in A Brief History of Time:
    “Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe? The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing? “

  4. Lexington Green Says:

    The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing? ”
    Beyond the limits of physics is metaphysics, and theology.  Asking “WHY?” is inevitable and necessary and categorically beyond the scope of science.  To dogmatically say: only questions that science can answer are worth asking flies in the face of human history, personal and collective.   

  5. Curtis Gale Weeks Says:

    Essentially, the above excerpt touches upon a) the notion that we seek to increase knowledge in order to gain control over our environment, b) failing to succeed in measurement or an actual increase in knowledge, we “invent” increases in knowledge by inventing “deceitful turkeys” to serve as answers, which become political, but c) if we only returned to a better, more honest approach, we would succeed in actually increasing knowledge and thus, increasing control.

    .

    “C” is the problem I have with the thrust of his argument.  So for example:

    .

    In times of increased subtlety one needs more highly quantitative measurements, not fewer. A measurement that cannot be done accurately, or that cannot be reproduced even if it is accurate, can never be divorced from politics and must therefore generate mythologies. The more such shades of meaning there are, the less scientific the discussion becomes. Accurate measurement in this sense is scientific law and a milieu in which accurate measurement is impossible is lawless.

    .

    In operation — i.e., in shaping policy or politics or merely public opinion — a scientifically “lawful” presentation of facts is hardly distinguishable from a “deceitful turkey”.  A deceitful turkey is hardly dangerous or influential if it is easily refuted; in this way, its effect is much like the effect of an irrefutable, repeating scientific fact that finds validation with every presentation.  Deceitful turkeys, or mythologies, also find validation, even if not the same kind of validation that a reproducible scientific measurement provides.  (Else, they would disappear about as quickly as they appear.) Also, the moment either is conceptualized and presented via language, it become a turkey—whether deceitful or “scientific.”   Finally, the greatest portion of politically-effective science is delivered as hearsay, usually from people who have not themselves made the scientific experiments to others who have not:  Not much different than the transmission of those deceitful turkeys, since either must be accepted on faith (or on authority, or on faith in authority….)

    .

    And so, when he says, “In times of increased subtlety one needs more highly quantitative measurements, not fewer”…well, I wonder if he meant qualitative rather than quantitative.  In any case, I would for the sake of making the consideration interesting ask whether we in fact already know about as much as we need to know re: quantitative knowledge, or understanding our present milieu quantitatively.   The confusion seems to arise from a misunderstanding of the qualitative rather than the quantitative, although of course qual and quant interact.   
          

  6. Nathaniel T. Lauterbach Says:

    This reminds me of Oswald Spengler’s “Decline of the West” (which can also be rendered just as correctly from the original German as “Decline of the Occident” or “Decline of the Evening-lands”–each translation of the title capturing something different and beautiful in its own way).
    .
    Among other things, he thought that each culture essentially developed its own versions of science, math, etc.  He theorized back in the early 20th Century that the current Western civilization was concerned with the philosophy of nothingness–being essentially Niezschean.  Therefore the mathematics developed emphasized imaginary numbers, the nature of zero, etc.  Geometry focused on points and space.  Cosmology focused on the Big Bang–either resulting in an entropic heat-death or in a Big Crunch, both terminantions are a return to nothingness.  The physics focused on the quantum variety and relativisitic variety (thus the focus on particles and waves).  Does anybody thus doubt the development of electronic radio and audio technology, mass storage, and long range communications during the recent past is merely a coincidence?  Even our art nowadays is focus mainly on music–which are waves.  Architecture is based on openness–from houses with an open floorplan to massive, largely clear glass stuctures with external skeletons providing support–all to give an open, airy feel.  The dominant religion is probably a variation of athiesm and agnosticism–religions of nothingness or unknowningness–with a substrate of Judiasm and Christianity.
    .
    This is somehow related to the idea that the universal rules which we derive are not only a result of humanity living in that universe, but also probably related to the dominant culture of the time as well.
    .
    I’m not sure I buy all that Spengler wrote on this, but it’s worthy of consideration.
    .
    Nate

  7. Grurray Says:

    I believe that’s what he’s saying when he states that laws follow collective behavior rather than dictate it.
    Emergent bottom up reality is more valid than politically mandated explanations no matter how well-intentioned.
    In this case the intention is taking a short cut to solving the problem of the “dark laws” or the black swan problem:
    http://en.wikipedia.org/wiki/Problem_of_induction

    “only questions that science can answer are worth asking flies in the face of human history, personal and collective. ”
    Don’t mean to get too preachy, but with all the talk about prophecies predicting current events in the MENA, I’ve been revisiting scriptural passages lately.
    From Job chapter 38:
    Where were you when I laid the earth’s foundation?
    Tell me, if you understand.
    Who marked off its dimensions? Surely you know!
    Who shut up the sea behind doors    
    when I said, ‘This far you may come and no farther;
    here is where your proud waves halt?
    .
    Later in Proverbs chapter 8 we find out who was there:
     
    The Lord brought me forth as the first of his works,
     before his deeds of old;
     I was formed long ages ago,
     at the very beginning, when the world came to be.
     I was there when he set the heavens in place,
     when he marked out the horizon on the face of the deep,
     when he gave the sea its boundary
    so the waters would not overstep his command,
    and when he marked out the foundations of the earth.
    Then I was constantly at his side.
    .
    The one who was there from the beginning was God’s Wisdom, his intelligent design
     
     

  8. Grurray Says:

    Nate,
    This was also a conclusion of Prigogine – that science and the explanations they come up with are directed and influenced by current events and culture and technological developments.
    Newton came up with laws of motion after the clock and other automata were developed.
    Laws of Thermodynamics came about to explain engines and other machinery from the industrial revolution.
    Chaos theory was popularized after the proliferation of computers and networks.


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