Murray Gell-Mann

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pages: 449 words: 123,459

The Infinity Puzzle by Frank Close


Albert Einstein, Andrew Wiles, Arthur Eddington, dark matter, El Camino Real,, Ernest Rutherford, Isaac Newton, Murray Gell-Mann, Richard Feynman, Richard Feynman, Ronald Reagan, Simon Singh

Ward asked, to which Marshak replied that at least four separate pieces of data would have to be wrong if V – A were to be the answer. The classification of the weak force appeared a mess, the results of some experiments hinting at S or T, while others preferred V or A. Clarity came with a rush. The experiments claiming S or T turned out to be flawed, and new experiments favored a combination of V and A. Marshak discussed the matter with several colleagues, including Murray Gell-Mann, a young theorist who would almost single-handedly redefine the frontiers of particle physics. However, that would come later, as we shall see. Meanwhile, unaware of these developments, Richard Feynman had been traveling in Brazil that summer and also had realized that V – A offered a mathematically tantalizing, though apparently empirically useless, possibility. On his return he asked some of his Cal Tech experimental colleagues to brief him on developments in the weak interaction, and they told him that Gell-Mann thought that the evidence for the S interpretation looked doubtful and that the data pointed more toward the correct classification being V.

The ideas of Yang and Mills (with or without Shaw) had largely been ignored since 1954. Suddenly, everything changed. The arrival of V – A as the classification of the weak interaction by 1957 inspired not just Ward but also others to realize that latent within the Yang-Mills equations was a possibility for physics to make a great advance. However, it would turn out that there are many possible paths through the Yang-Mills jungle. Murray Gell-Mann, who also had recognized the V – A option, spent a considerable amount of 1958 and ’59 trying to unite weak and electromagnetic forces but failed to find a model that would fit all the facts.12 Salam and Ward, however, were relatively slow in getting together and developing the idea. As we shall see, their first try did not agree with nature. By the time they had found the scheme that nature actually uses, they had been beaten—and by a student.

This episode was an extreme example, Salam claiming that as a result he never again read any of Glashow’s papers, although he himself later admitted that this was a mistake.9 Glashow wisely dropped his wild claim that the theory was renormalizable, but continued with his pursuit of a unified theory. Fortune came his way the next year, 1960, following a seminar that he gave in Paris, attended by Murray Gell-Mann. Gell-Mann was only three years older than Glashow but already had a huge reputation. By the age of thirty he had introduced the concept of “strange” particles, to explain the bizarre phenomena being discovered in cosmic rays; he was already en route to the grand classification scheme that would group the strong interacting particles—hadrons—into families, eventually explaining them as composed of more basic particles called quarks, and he had developed a method of 116 the infinity puzzle calculation known as current algebra to account for the behavior of these particles.


pages: 185 words: 55,639

The Search for Superstrings, Symmetry, and the Theory of Everything by John Gribbin


Albert Einstein, Arthur Eddington, complexity theory, dark matter, Dmitri Mendeleev, Ernest Rutherford, Fellow of the Royal Society, Isaac Newton, Murray Gell-Mann, Richard Feynman, Richard Feynman, Schrödinger's Cat, Stephen Hawking

But although the impetus for finding patterns among the properties of hadrons came partly from ideas developed in the context of field theory in the 1950s, the ‘periodic table’ of the particles stood on its own merits, as a classification system like Mendeleev's table, at the start of the next phase of development of particle physics. The classification system was arrived at independently by two physicists, the American Murray Gell-Mann (born in 1929) and the Israeli Yuval Ne'eman, born in 1925. Ne'eman's education and career were interrupted by the fighting in the Middle East, following World War Two, during which Israel emerged as a nation in the region that had previously been Palestine. Ne'eman stayed in the Israeli armed forces after this period of disturbance, but found opportunities to study as well as to carry out his military duties.

By 1970, experimental results were coming in that seemed to be in line with this colour model of quarks, and the concept began to gain ground. And at about the same time Glashow and two of his colleagues at Harvard, John Iliopoulos and Luciano Maiani, revived the idea of a fourth quark, which Glashow gave the name ‘charm’, in order to tidy up the theoretical interpretation of some other puzzling experimental observations. In 1971, Murray Gell-Mann and Harald Fritzsch, who was born in Zwickau in 1943, and is now Research Professor of Physics at the Max-Planck Institute for Physics in Munich, took up the idea of colour and began to develop a field theory approach that would describe the behaviour of interactions involving particles that came in three varieties. As early as the autumn of 1972, Gell-Mann and Fritzsch were proposing that the best description of the structure of hadrons was in terms of a Yang-Mills type of gauge theory in which the triplets of coloured quarks interacted with one another through the mediation of an octet of gluons.

Group theory was developed in the nineteenth century by the Norwegian mathematician Sophus Lie (so these groups are sometimes known as ‘Lie groups’). Although the theory had been used in mathematical descriptions of the symmetry of crystals, it was a largely obscure branch of mathematics until the second half of the twentieth century, when Chen Ning Yang and Robert Mills found a way to describe the strong interaction in terms of Lie groups, and then Murray Gell-Mann and Yuval Ne'eman (working independently of one another) found that SU(3) provided a framework for describing mathematically the relationships between elementary particles. Since then, symmetry groups have been an essential tool used by physicists in their development of gauge theories of the forces of nature. In this context, symmetry groups are sometimes called gauge groups. A simple example of a group is the set of rotations of a coordinate system (an x, y graph system) around the point where the x and y axes meet.


pages: 433 words: 106,048

The End of Illness by David B. Agus M. D.


Danny Hillis, discovery of penicillin, double helix, epigenetics, germ theory of disease, Google Earth, impulse control, information retrieval, meta analysis, meta-analysis, microbiome, Murray Gell-Mann, pattern recognition, personalized medicine, randomized controlled trial, risk tolerance, Steve Jobs, the scientific method

—AL GORE, 45th vice president of the United States, Nobel laureate in peace, 2007 “As physician, research scientist, and friendly guide, Dr. David Agus takes his readers on a fascinating tour of ideas and facts about health and illness. They will find many of those ideas to be unconventional and thought-provoking and many of the facts to be both striking and surprising. Read this book and you will very likely change at least some of your views on health and illness.” —MURRAY GELL-MANN, PHD, Nobel laureate in physics, 1969, and distinguished fellow and cofounder of the Santa Fe Institute “Filled with unorthodox ideas backed with hard science, The End of Illness simplifies for the reader the complexity of vital developments happening in medicine today and teaches us how to make the most of what’s available, as well as what’s soon to come.” —MICHAEL DELL, founder, chairman, and chief executive officer of Dell, Inc.

Our outlooks on life may evolve slowly over time, but they can shift in an instant when a new fact or finding is brought to our attention. My perspective on health began to take a serious turn when I read Clifton’s article, and then it crystallized one night in the company of a Nobel laureate in physics who pushed me to think differently. In July 2009, I attended a dinner party in Aspen, Colorado, where I had the good fortune of meeting Murray Gell-Mann, the scientist who had postulated the existence of quarks nearly fifty years previously. Quarks, particles more elementary than electrons, are the basic building blocks of all matter in the universe. We owe much of our understanding of how the universe organizes itself at the subatomic level to Murray’s work. He received the 1969 Nobel Prize in physics even though his concepts weren’t confirmed until 1977.

It may even be the biggest success story in biology because it started as just a theory and was later confirmed to be correct, which hardly ever happens in the field. By contrast, this order of events happens all the time in physics. Before we could prove the existence of black holes, for instance, someone came up with a model—an equation more or less—that indicated that they were out there. And lo and behold, black holes were eventually “discovered.” As I mentioned in the introduction, Murray Gell-Mann first predicted the existence of quarks by creating a model based on mathematics rather than observation. This type of discovery, whereby an abstract theory precedes actual proof, or even a way of testing out a theory, almost never happens in biology. Biology is rife with dogma based on real-life observations rather than postulations. That is, with one relatively recent exception: the field of DNA and the genome.


pages: 661 words: 169,298

Coming of Age in the Milky Way by Timothy Ferris


Albert Einstein, Albert Michelson, Alfred Russel Wallace, anthropic principle, Arthur Eddington, Atahualpa, Cepheid variable, Chance favours the prepared mind, Commentariolus, cosmic abundance, cosmic microwave background, cosmological constant, cosmological principle, dark matter, delayed gratification, Edmond Halley, Eratosthenes, Ernest Rutherford, Gary Taubes, Harlow Shapley and Heber Curtis, Harvard Computers: women astronomers, Henri Poincaré, invention of writing, Isaac Newton, John Harrison: Longitude, Karl Jansky, Lao Tzu, Louis Pasteur, Magellanic Cloud, mandelbrot fractal, Menlo Park, Murray Gell-Mann, music of the spheres, planetary scale, retrograde motion, Richard Feynman, Richard Feynman, Search for Extraterrestrial Intelligence, Searching for Interstellar Communications, Solar eclipse in 1919, Stephen Hawking, Thomas Kuhn: the structure of scientific revolutions, Thomas Malthus, Wilhelm Olbers

Coming of Age in the Milky Way was written in New York, Los Angeles, and San Francisco over a period of twelve years, from 1976 through 1988. As one might expect, in the course of so long a project I have incurred more debts of gratitude than I can properly retire. I should like, however, to express my thanks for aid and criticism provided by William Alexander, Sherry Arden, Hans Bethe, Nancy Brackett, Ken Broede, Robert Brucato, Lisa Drew, Ann Druyan, David Falk, Andrew Fraknoi, Murray Gell-Mann, Owen Gingerich, J. Richard Gott III, Stephen Jay Gould, Alan Guth, Stephen Hawking, He Xiang Tao, Karen Hitzig, Larry Hughes, Res Jost, Kathy Lowry, Owen Laster, Irwin Lieb, Dennis Meredith, Arthur Miller, Bruce Murray, Lynda Obst, Heinz Pagels, Abraham Pais, Thomas Powers, Carl Sagan, Allan Sandage, David Schramm, Dennis Sciama, Frank Shu, Erica Spellman, Gustav Tammann, Jack Thibeau, Kip S.

*The medicine balls are purely repulsive, as in the interaction between two electrons or other fermions of like charge. For attractive forces (as between a proton and an electron), imagine that the bosons are elastic bands that stretch when the skaters move apart, drawing them together. For the exclusion principle, let each skater wear a hoopskirt that forbids their colliding…. And that is quite enough of that. *The name “quark” was conferred by Murray Gell-Mann, the Caltech physicist who came up with the idea. It comes from a line in James Joyce’s Finnegans Wake, “Three quarks for Muster Mark!” George Zweig, a physicist at Caltech who arrived at the same idea independently, called the entities “aces,” a term that lost out to Gell-Mann’s, perhaps because there are four aces, not three, in a deck of cards. 16 RUMORS OF PERFECTION Spirit of BEAUTY, that dost consecrate With thine own hues all thou dost shine upon Of human thought or form, where art thou gone?

Yang-Mills gauge theory offered a new approach to the practice of theoretical physics: What one could now do was to first identify an invariance, the signal of a symmetry; then construct, mathematically, a gauge field capable of maintaining that invariance locally; then derive the characteristics of the particles that would convey such a field; then go and see (or urge the experimenters to go see) whether any such particles actually exist in nature. Viewed from this perspective, Einstein’s photons, the carriers of the electromagnetic force, are gauge particles, messengers of symmetry. So are the gravitons thought to be the carriers of gravitation. But what were the gauge particles of the strong and weak forces? That question was taken up by one of the first to appreciate the beauty of the Yang-Mills approach, the American physicist Murray Gell-Mann. Some smart scientists (Dirac, Bohr, and the elder Einstein) are modest in demeanor. Others are brash. (Wolfgang Pauli disrupted Yang’s first explication of gauge invariance so persistently that J. Robert Oppenheimer finally had to tell him to shut up and sit down.) Gell-Mann was very smart—he spoke more languages than his friends could keep count of, displayed an expert knowledge of everything from botany to Caucasian carpet-weaving, and was said, with forgivable exaggeration, to rank as a great physicist not because he had any particular aptitude for physics but simply because he deigned to include physics among his many interests—and very brash.


pages: 396 words: 112,748

Chaos by James Gleick


Benoit Mandelbrot, butterfly effect, cellular automata, Claude Shannon: information theory, discrete time, Edward Lorenz: Chaos theory, experimental subject, Georg Cantor, Henri Poincaré, Isaac Newton, iterative process, John von Neumann, Louis Pasteur, mandelbrot fractal, Murray Gell-Mann, Norbert Wiener, pattern recognition, Richard Feynman, Richard Feynman, Stephen Hawking, stochastic process, trade route

Smale had steered mathematics in the direction of such physical problems, but, as Yorke well understood, the language of mathematics remained a serious barrier to communication. If only the academic world had room for hybrid mathematician/physicists—but it did not. Even though Smale’s work on dynamical systems had begun to close the gap, mathematicians continued to speak one language, physicists another. As the physicist Murray Gell-Mann once remarked: “Faculty members are familiar with a certain kind of person who looks to the mathematicians like a good physicist and looks to the physicists like a good mathematician. Very properly, they do not want that kind of person around.” The standards of the two professions were different. Mathematicians proved theorems by ratiocination; physicists’ proofs used heavier equipment. The objects that made up their worlds were different.

And in return, it was fully in character for Harry Swinney to draw himself up to his maximum height, something around five and a half feet, and say, “That’s true,” with a mixture of innate Louisiana charm and acquired New York irascibility. “That’s true if you have an infinite amount of noise-free data.” And wheel dismissively back toward the blackboard, adding, “In reality, of course, you have a limited amount of noisy data.” Swinney was experimenting with stuff. For him the turning point had come when he was a graduate student at Johns Hopkins. The excitement of particle physics was palpable. The inspiring Murray Gell-Mann came to talk once, and Swinney was captivated. But when he looked into what graduate students did, he discovered that they were all writing computer programs or soldering spark chambers. It was then that he began talking to an older physicist starting to work on phase transitions—changes from solid to liquid, from nonmagnet to magnet, from conductor to superconductor. Before long Swinney had an empty room—not much bigger than a closet, but it was his alone.

THE EVEN-ODD SYSTEM From computer simulations, Yorke found that the system forced drivers to make more trips to the filling station and to keep their tanks fuller all the time; thus the system increased the amount of gasoline sitting wastefully in the nation’s automobiles at any moment. HE ANALYZED THE MONUMENT’S SHADOW Airport records later proved Yorke correct. LORENZ’S PAPER Yorke. “FACULTY MEMBERS” Murray Gell-Mann, “The Concept of the Institute,” in Emerging Syntheses in Science, proceedings of the founding workshops of the Santa Fe Institute (Santa Fe: The Santa Fe Institute, 1985), p. 11. HE GAVE A COPY Yorke, Smale. “IF YOU COULD WRITE” Yorke. HOW NONLINEAR NATURE IS A readable essay on linearity, non-linearity, and the historical use of computers in understanding the difference is David Campbell, James P.


pages: 404 words: 134,430

Why People Believe Weird Things: Pseudoscience, Superstition, and Other Confusions of Our Time by Michael Shermer


Albert Einstein, Alfred Russel Wallace, anesthesia awareness, anthropic principle, butterfly effect, cognitive dissonance, complexity theory, conceptual framework, correlation does not imply causation, cosmological principle, discovery of DNA, false memory syndrome, Gary Taubes, invention of the wheel, Isaac Newton, laissez-faire capitalism, life extension, Murray Gell-Mann, out of africa, Richard Feynman, Richard Feynman, Search for Extraterrestrial Intelligence, Silicon Valley, Stephen Hawking, Steven Pinker, The Bell Curve by Richard Herrnstein and Charles Murray, the scientific method, Thomas Kuhn: the structure of scientific revolutions

Attorneys Jeffrey Lehman and Beth Shapiro Kaufman from the firm of Caplin and Drysdale, Nobel laureate Christian Anfinsen, biologist Francisco Ayala from the University of California, Davis, and paleontologist Stephen Jay Gould from Harvard University faced a room filled with television, radio, and newspaper reporters from across the country. Gould and Ayala made opening statements, and a statement by Nobel laureate Murray Gell-Mann was read in absentia. The emotional commitment of these representatives from the scientific community was clear from the outset and baldly disclosed in their statements. Gould noted, "As a term, creation-science is an oxymoron—a self-contradictory and meaningless phrase—a whitewash for a specific, particular, and minority religious view in America—Biblical literalism." Ayala added, "To claim that the statements of Genesis are scientific truths is to deny all the evidence.

In spite of centuries of attention by scientists and philosophers of science, no concise definition of science has ever been accepted by the community of scientists and scholars. This situation changed temporarily with the amicus curiae brief submitted on August 18, 1986, to the Supreme Court. For this brief, the amid managed to define and agree upon the nature and scope of science. The brief was instigated by Murray Gell-Mann, Paul MacCready, and other members of the Southern California Skeptics Society after they read in the Los Angeles Times that the U.S. Supreme Court had agreed to hear the Louisiana case. Worried, they contacted attorney Jeffrey Lehman, who had recently clerked for Justice John Paul Stevens. Lehman told them that "an amicus brief is the proper way for independent outsiders to present their views to the Supreme Court" (Lehman 1989).

The Whys of a Philosophical Scrivener. New York: Quill. ......... 1991a. The New Age: Notes of a Fringe Watcher. Buffalo, N.Y.: Prometheus. ......... 1991b. Tipler's Omega Point Theory. Skeptical Inquirer 15, no. 2:128-134. ......... 1992. On the Wild Side. Buffalo, N.Y.: Prometheus. ......... 1996. Transcript of Interview by M. Shermer, August 11. Gell-Mann, M. 1986. Press Statement by Dr. Murray Gell-Mann. Los Angeles Skeptics Evaluative Report 2, no. 4:5. ......... 1990. Transcript of Interview by M. Shermer. ......... 1994a. What Is Complexity? Complexity 1, no. 1:16-19. ......... 1994b. The Quark and the Jaguar. New York: Freeman. George, J., and L. Wilcox. 1992. Nazis, Communists, Klansmen, and Others on the Fringe: Political Extremism in America. Buffalo, N.Y.: Prometheus. Getzels, J.


pages: 261 words: 86,261

The Pleasure of Finding Things Out: The Best Short Works of Richard P. Feynman by Richard P. Feynman, Jeffrey Robbins


Albert Einstein, Brownian motion, impulse control, index card, John von Neumann, Murray Gell-Mann, pattern recognition, Richard Feynman, Richard Feynman, Richard Feynman: Challenger O-ring, the scientific method

In the preface to The Feynman Lectures on Physics, widely used as a college text since they were collected and published in 1963, he appears with a maniacal grin, playing a conga drum. (On the bongos, it is said, he can play ten beats with one hand against eleven with the other; try it, and you may decide that quantum electrodynamics is easier.) Among Feynman’s other achievements are his contribution to understanding the phase changes of super-cooled helium, and his work with Caltech colleague Murray Gell-Mann* on the theory of beta decay of atomic nuclei. Both subjects are still far from final resolution, he points out; indeed, he does not hesitate to call quantum electrodynamics itself a “swindle” that leaves important logical questions unanswered. What kind of man can do work of that caliber while nursing the most penetrating doubts? Read on and find out. Omni: To someone looking at high-energy physics from the outside, its goal seems to be to find the ultimate constituents of matter.

And so it turns out that a theory has been invented–the theory of quarks; that certain of these things like the proton, for instance, or neutron, are made of three objects called quarks. NARRATOR: No one has yet seen a quark, which is too bad, because they may represent the fundamental building block for all the other more complicated atoms and molecules that make up the universe. The name was chosen for no particular reason by Dr. Feynman’s colleague, Murray Gell-Mann, some years ago. Somewhat to Dr. Gell-Mann’s surprise, the Irish novel writer James Joyce had already anticipated that name thirty years earlier in his book, Finnegan’s Wake. The key phrase was “three quarks for Muster Mark.” This was even a bigger coincidence since, as Dr. Feynman explained, the quarks that make up the particles of the universe seem to come in threes. In the search for quarks, physicists are knocking protons and neutrons together at such high energies with the hope that they will break apart into their quark components in the process.


pages: 313 words: 101,403

My Life as a Quant: Reflections on Physics and Finance by Emanuel Derman


Berlin Wall, bioinformatics, Black-Scholes formula, Brownian motion, capital asset pricing model, Claude Shannon: information theory, Emanuel Derman, fixed income, Gödel, Escher, Bach, haute couture, hiring and firing, implied volatility, interest rate derivative, Jeff Bezos, John von Neumann, law of one price, linked data, Long Term Capital Management, moral hazard, Murray Gell-Mann, pre–internet, publish or perish, quantitative trading / quantitative finance, Richard Feynman, Sharpe ratio, statistical arbitrage, statistical model, Stephen Hawking, Steve Jobs, stochastic volatility, technology bubble, transaction costs, value at risk, volatility smile, Y2K, yield curve, zero-coupon bond

Now, in the twentieth century, the race was on to find an analogous table for the qualities of so-called elementary particles. So many new ones were being discovered in cosmic rays or man-made colliders that some serious physicists (from California, of course) began to propound holistic sorts of models in which no particle was more elementary than any other and any particle could be considered a composite of all the rest. In Cape Town in the summer of 1964, we heard popular lectures about the work of physicists Murray Gell-Mann and Yuval Ne'eman, both modern-day Mendeleyevs, who each invented their own periodic table of particles. Some of the subtables in their system contained eight distinct particles. Gell-Mann dubbed his model the Eightfold Way, a sophisticated and hip allusion to the eight Buddhist principles of living. By looking at the properties of the unpopulated gaps in their table, Gell-Mann and Ne'eman had predicted the observable properties of a very strange new particle called the Omega Minus.

Pais, a tiny man and the most renowned professor, had hired me into his lab; his former collaborator Mirza Abdul Baqi Beg, a burly Pakistani with a Pancho Villa mustache who always cited the famous German Jewish physicist Rudolf Peierls as his mentor, ran another lab. In a much more low-stakes version of the Lee-Yang quarrel, Pais was rumored to be at war with Beg, and we heard reports of prolonged shouting matches. We also heard that Pais had made a bitter enemy of Murray Gell-Mann, his 1950s collaborator, who, according to George Johnson's biography of Gell-Mann, always referred to Pais as "the evil dwarf." After what I had seen of Lee andYang, I was not overly surprised by these feuds. How hard and how long you appeared to work at Rockefeller was irrelevant; what counted was what you accomplished (and, perhaps, the aura you radiated of how much you might accomplish).


pages: 416 words: 106,582

This Will Make You Smarter: 150 New Scientific Concepts to Improve Your Thinking by John Brockman


23andMe, Albert Einstein, Alfred Russel Wallace, banking crisis, Barry Marshall: ulcers, Benoit Mandelbrot, Berlin Wall, biofilm, Black Swan, butterfly effect, Cass Sunstein, cloud computing, congestion charging, correlation does not imply causation, Daniel Kahneman / Amos Tversky, dark matter, data acquisition, David Brooks, delayed gratification, Emanuel Derman, epigenetics, Exxon Valdez, Flash crash, Flynn Effect, hive mind, impulse control, information retrieval, Isaac Newton, Jaron Lanier, John von Neumann, Kevin Kelly, mandelbrot fractal, market design, Mars Rover, Marshall McLuhan, microbiome, Murray Gell-Mann, Nicholas Carr, open economy, place-making, placebo effect, pre–internet, QWERTY keyboard, random walk, randomized controlled trial, rent control, Richard Feynman, Richard Feynman, Richard Feynman: Challenger O-ring, Richard Thaler, Schrödinger's Cat, security theater, Silicon Valley, stem cell, Steve Jobs, Steven Pinker, Stewart Brand, the scientific method, Thorstein Veblen, Turing complete, Turing machine, Walter Mischel, Whole Earth Catalog

Understanding exactly how new hidden layers get laid down in neural circuitry is a great unsolved problem of science. I’m tempted to say it’s the greatest unsolved problem. Liberated from its origin in neural networks, the concept of hidden layers becomes a versatile metaphor with genuine explanatory power. For example, in my work in physics I’ve noticed many times the impact of inventing names for things. When Murray Gell-Mann invented “quarks,” he was giving a name to a paradoxical pattern of facts. Once that pattern was recognized, physicists faced the challenge of refining it into something mathematically precise and consistent, but identifying the problem was the crucial step toward solving it! Similarly, when I invented “anyons,” for theoretical particles existing in only two dimensions, I knew I had put my finger on a coherent set of ideas, but I hardly anticipated how wonderfully those ideas would evolve and be embodied in reality.

That’s why no one should expect the next review of climate science from the Intergovernmental Panel on Climate Change to suddenly create a harmonious path forward. The more such realities are recognized, the more likely it is that innovative approaches to negotiation can build from the middle, instead of arguing endlessly from the edge. The same body of research on climate attitudes, for example, shows far less disagreement on the need for advancing the world’s limited menu of affordable energy choices. The physicist Murray Gell-Mann has spoken often of the need, when faced with multidimensional problems, to take a “crude look at the whole”—a process he has even given an acronym, CLAW. It’s imperative, where possible, for that look to include an honest analysis of the species doing the looking as well. There will never be a way to invent a replacement for, say, the United Nations or the House of Representatives. But there is a ripe opportunity to try new approaches to constructive discourse and problem solving, with the first step being an acceptance of our humanness, for better and worse.


pages: 346 words: 92,984

The Lucky Years: How to Thrive in the Brave New World of Health by David B. Agus


3D printing, active transport: walking or cycling, Affordable Care Act / Obamacare, Albert Einstein, butterfly effect, clean water, cognitive dissonance, crowdsourcing, Danny Hillis, Drosophila, Edward Lorenz: Chaos theory,, epigenetics, Kickstarter, medical residency, meta analysis, meta-analysis, microbiome, microcredit, mouse model, Murray Gell-Mann, New Journalism, pattern recognition, personalized medicine, phenotype, placebo effect, publish or perish, randomized controlled trial, risk tolerance, statistical model, stem cell, Steve Jobs, Thomas Malthus, wikimedia commons

“The Lucky Years inspires you to live a more healthful and meaningful life and provides practical and hopeful guidance for the path ahead. Dr. Agus will show you what it truly means to enjoy the lucky years.” —Dov Seidman, author of How: Why How We Do Anything Means Everything “Dr. Agus presents a provocative, highly informative way of understanding revolutions in health and health care today that will change the quality of our lives.” —Murray Gell-Mann, PhD, Nobel Laureate in Physics, 1969, and distinguished fellow and cofounder of the Santa Fe Institute “Dr. Agus once again gives us a clear path to better health. We are lucky to have such an incredible guide to such a critical subject.” —Marc Benioff, chairman and CEO, Thank you for downloading this Simon & Schuster eBook. * * * Join our mailing list and get updates on new releases, deals, bonus content and other great books from Simon & Schuster.

To the research team including lab chief Shannon Mumenthaler, Jonathan Katz, Dan Ruderman, Paul Macklin, Kian Kani, and Yvonne Suarez, and the rest of the dedicated scientists. Thank you for pushing my thinking forward and your work in figuring out better ways to understand and treat disease. To my science mentors, collaborators, and friends Andrea Armani, Anthony Atala, Anna Barker, Paul Davies, Scott Fraser, Sam Gambhir, Murray Gell-Mann, Inderbir Gill, Dana Goldman, Danny Hillis, Cliff Hudis, Carl Kesselman, Parag Mallick, Franziska Michor, Vincent Miller, Larry Norton, Carmen Puliafito, Michael Quick, Chris Rose, Howard Scher, P. K. Shah, Jeff Trent, and Yannis Yortsos. I have the privilege of seeing the breaking health and technology information daily through my involvement with CBS News. Many of the ideas discussed in The Lucky Years originated from stories I initially did with CBS This Morning.


pages: 119 words: 10,356

Topics in Market Microstructure by Ilija I. Zovko


Brownian motion, continuous double auction, correlation coefficient, financial intermediation, Gini coefficient, market design, market friction, market microstructure, Murray Gell-Mann, p-value, quantitative trading / quantitative finance, random walk, stochastic process, stochastic volatility, transaction costs

Good friend and the responsable who made the computers at the SFI work, Nate Metheney. John Miller for his experienced academic advice, at times a “tough hand” and most importantly for showing me one example where game theory can be practical.1 Rhonda Butler-Villa for helping in numerous issues with authorities (just the usual things...) I also thank Constantino Tsallis for being a great role model; Ilya Peiros, Murray Gell-Mann, Goeffrey West, George Gummerman, Steve Lansing, Christopher Lantz and the late Sergei Starostin for the inspirational lectures and a general inspiring environment. I am grateful to Cormac McCarthy for pulling my car out of a ditch. Thanks go to people who I have had the privilege to meet and who took the time to answer my questions: Brian Arthur, J.P.Bouchaud, Sam Bowles, Michel Dacorogna, Raphael Douady, Thomas Lux, Soren Johansen, Rosario Mantegna and Ramon Marimon.


pages: 107 words: 33,799

The Meaning of It All by Richard P. Feynman


means of production, Murray Gell-Mann, Richard Feynman, Richard Feynman, Richard Feynman: Challenger O-ring, the scientific method

Subsequently, he taught at Cornell and at the California Institute of Technology. In 1965 he received the Nobel Prize in Physics, along with Sin–Itero Tomanaga and Julian Schwinger, for his work in quantum electrodynamics. Dr. Feynman won his Nobel Prize for successfully resolving problems with the theory of quantum electrodynamics. He also created a mathematical theory that accounts for the phenomenon of superfluidity in liquid helium. Thereafter, with Murray Gell–Mann, he did fundamental work in the area of weak interactions such as beta decay. In later years Feynman played a key role in the development of quark theory by putting forward his parton model of high energy proton collision processes. Beyond these achievements, Dr. Feynman introduced basic new computational techniques and notations into physics—above all, the ubiquitous Feynman diagrams, which, perhaps more than any other formalism in recent scientific history, have changed the way in which basic physical processes are conceptualized and calculated.


pages: 100 words: 28,911

A Short Guide to a Long Life by David B. Agus


Danny Hillis, Ignaz Semmelweis: hand washing, meta analysis, meta-analysis, Murray Gell-Mann, personalized medicine, placebo effect, risk tolerance, the scientific method

I also have to thank those who continue to support and inspire me on a regular basis, including Jeff Fager, Sandy Gleysteen, Gayle King, Jonathan LaPook, Chris Licht, Norah O’Donnell, Karolyn Pearson, David Rhodes, and Charlie Rose at CBS News, who empower me to be able to educate and inform. To Dominick Anfuso, Marc Benioff, Gerald Breslauer, Eli Broad, Bill Campbell, Michael Dell, Larry Ellison, Robert Evans, Murray Gell-Mann, Al Gore, Brad Grey, Davis Guggenheim, Danny Hillis, Walter Isaacson, Peter Jacobs, Clifton Leaf, Max Nikias, Fabian Oberfeld, Howard Owens, Shimon Peres, Maury Povich, Carmen Puliafito, Bruce Ramer, Sumner Redstone, Joe Schoendorf, Dov Seidman, Bonnie Solow, Steven Spielberg, Elle Stephens, Yossi Vardi, Jay Walker, David Weissman, and Neil Young: your mentorship, friendship, and advice are truly appreciated.


pages: 695 words: 219,110

The Fabric of the Cosmos by Brian Greene


airport security, Albert Einstein, Albert Michelson, Arthur Eddington, Brownian motion, clockwork universe, conceptual framework, cosmic microwave background, cosmological constant, dark matter, dematerialisation, Hans Lippershey, Henri Poincaré, invisible hand, Isaac Newton, Murray Gell-Mann, Richard Feynman, Richard Feynman, Stephen Hawking, urban renewal

The act of measurement would no longer be special; it would merely be one specific example of contact with the environment. Is that it? Does decoherence resolve the quantum measurement problem? Is decoherence responsible for wavefunctions’ closing the door on all but one of the potential outcomes to which they can lead? Some think so. Researchers like Robert Griffiths, of Carnegie Mellon; Roland Omnès, of Orsay; the Nobel laureate Murray Gell-Mann, of the Santa Fe Institute; and Jim Hartle, of the University of California at Santa Barbara, have made great progress and claim that they have developed decoherence into a complete framework (called decoherent histories) that solves the measurement problem. Others, like myself, are intrigued but not yet fully convinced. You see, the power of decoherence is that it successfully removes the artificial barrier Bohr erected between large and small physical systems, making everything subject to the same quantum mechanical formulas.

It is true that if, in light of the results of EPR, Bell, and Aspect, we try to maintain realism—for example, as in Bohm’s theory discussed later in the chapter—the kind of nonlocality we require to be consistent with the data seems to be more severe, involving nonlocal interactions, not just nonlocal correlations. Many physicists have resisted this option and have thus relinquished realism. 15. See, for example, Murray Gell-Mann, The Quark and the Jaguar (New York: Freeman, 1994), and Huw Price, Time’s Arrow and Archimedes’ Point (Oxford: Oxford University Press, 1996). 16. Special relativity forbids anything that has ever traveled slower than light speed from crossing the speed-of-light barrier. But if something has always been traveling faster than the speed of light, it is not strictly ruled out by special relativity.

A natural question is how we know that there isn’t some future constraint that also has an impact on entropy. The bottom line is that we don’t, and some physicists have even suggested experiments to detect the possible influence that such a future constraint might have on things that we can observe today. For an interesting article discussing the possibility of future and past constraints on entropy, see Murray Gell-Mann and James Hartle, “Time Symmetry and Asymmetry in Quantum Mechanics and Quantum Cosmology,” in Physical Origins of Time Asymmetry, J. J. Halliwell, J. Pérez-Mercader, W. H. Zurek, eds. (Cambridge, Eng.: Cambridge University Press, 1996), as well as other papers in Parts 4 and 5 of that collection. 18. Throughout this chapter, we’ve spoken of the arrow of time, referring to the apparent fact that there is an asymmetry along the time axis (any observer’s time axis) of spacetime: a huge variety of sequences of events is arrayed in one order along the time axis, but the reverse ordering of such events seldom, if ever, occurs.


pages: 478 words: 142,608

The God Delusion by Richard Dawkins


Albert Einstein, anthropic principle, Any sufficiently advanced technology is indistinguishable from magic, Ayatollah Khomeini, Brownian motion, cosmological principle, David Attenborough, Desert Island Discs, double helix,, experimental subject, Fellow of the Royal Society, gravity well, invisible hand, John von Neumann, luminiferous ether, Menlo Park, meta analysis, meta-analysis, Murray Gell-Mann, Necker cube, Peter Singer: altruism, phenotype, placebo effect, planetary scale, Ralph Waldo Emerson, Richard Feynman, Richard Feynman, Schrödinger's Cat, Search for Extraterrestrial Intelligence, stem cell, Stephen Hawking, Steven Pinker, the scientific method, theory of mind, Thorstein Veblen, trickle-down economics, unbiased observer

Stars also, as we have seen, are the precursors to the development of interesting chemistry, and hence life. So, Smolin suggests, there has been a Darwinian natural selection of universes in the multiverse, directly favouring the evolution of black hole fecundity and indirectly favouring the production of life. Not all physicists are enthusiastic about Smolin’s idea, although the Nobel Prize-winning physicist Murray Gell-Mann is quoted as saying: ‘Smolin? Is he that young guy with those crazy ideas? He may not be wrong.’70 A mischievous biologist might wonder whether some other physicists are in need of Darwinian consciousness-raising. It is tempting to think (and many have succumbed) that to postulate a plethora of universes is a profligate luxury which should not be allowed. If we are going to permit the extravagance of a multiverse, so the argument runs, we might as well be hung for a sheep as a lamb and allow a God.

Carter, ‘The anthropic principle and its implications for biological evolution’, Philosophical Transactions of the Royal Society of London A, 310, 1983, 347–63. For a book-length discussion of the anthropic principle, see Barrow and Tipler (1988). 68 Comins (1993). 69 I spelled this argument out more fully in The Blind Watchmaker (Dawkins 1986). The anthropic principle: cosmological version 70 Murray Gell-Mann, quoted by John Brockman on the ‘Edge’ website, 71 Ward (1996: 99); Polkinghorne (1994: 55). An interlude at Cambridge 72 J. Horgan, ‘The Templeton Foundation: a skeptic’s take’, Chronicle of Higher Education, 7 April 2006. See also 73 P. B. Medawar, review of The Phenomenon of Man, repr. in Medawar (1982: 242). 74 Dennett (1995: 155).


pages: 158 words: 49,168

Infinite Ascent: A Short History of Mathematics by David Berlinski


Alan Turing: On Computable Numbers, with an Application to the Entscheidungsproblem, Albert Einstein, Andrew Wiles, Benoit Mandelbrot, Douglas Hofstadter, Eratosthenes, four colour theorem, Georg Cantor, Gödel, Escher, Bach, Henri Poincaré, Isaac Newton, John von Neumann, Murray Gell-Mann, Stephen Hawking, Turing machine, William of Occam

The group named SU(2) represents just what stays the same and what changes in spins of this sort. No new ideas are involved. Symmetry remains symmetry, something captured by a group. In the early 1960s, particle physicists were confronted with a virtual zoo of new particles, unstable objects that left glowing traces of themselves in various experiments but refused to cohere into any stable pattern. A scheme of organization was needed. Murray Gell-Mann and Yuval Ne’eman both realized that SU(2) was a subgroup of a still larger group—the fabled SU(3)—and that when particles were organized by SU(3), an eightfold symmetry emerged, with families of particles neatly organized into very intuitive subgroups. When one of the physical octets specified by the group appeared to be missing a member, Gell-Mann and Ne’eman both predicted that the missing particle was there and would be found—as it was.


pages: 186 words: 64,267

A Brief History of Time by Stephen Hawking


Albert Einstein, Albert Michelson, anthropic principle, Arthur Eddington, bet made by Stephen Hawking and Kip Thorne, Brownian motion, cosmic microwave background, cosmological constant, dark matter, Edmond Halley, Ernest Rutherford, Henri Poincaré, Isaac Newton, Magellanic Cloud, Murray Gell-Mann, Richard Feynman, Richard Feynman, Stephen Hawking

This was before my time; I joined the college in 1965 at the tail end of the bitterness, when similar disagreements forced another Nobel Prize—winning Master, Sir Nevill Mott, to resign. Up to about thirty years ago, it was thought that protons and neutrons were “elementary” particles, but experiments in which protons were collided with other protons or electrons at high speeds indicated that they were in fact made up of smaller particles. These particles were named quarks by the Caltech physicist Murray Gell-Mann, who won the Nobel Prize in 1969 for his work on them. The origin of the name is an enigmatic quotation from James Joyce: “Three quarks for Muster Mark!” The word quark is supposed to be pronounced like quart, but with a k at the end instead of a t, but is usually pronounced to rhyme with lark. There are a number of different varieties of quarks: there are six “flavors,” which we call up, down, strange, charmed, bottom, and top.


On Nature and Language by Noam Chomsky


Alfred Russel Wallace, anti-communist, Berlin Wall, Bretton Woods, complexity theory, dark matter, Fall of the Berlin Wall, Murray Gell-Mann, Steven Pinker, theory of mind, Turing test

nc: Not often, I suppose, but they are in some. So, for example, there is a standard joke in physics and mathematics that the only numbers are 1, 2, 3, and infinity; the others are too complicated, so if anything comes out, say, 7, or something like that, it is wrong. And in fact that actually shows up in scientific work. It showed up in the development of the theory of quarks, apparently: if I remember correctly, when Murray Gell-Mann and his associates were devising the theory, it turned out that they had evidence for seven quarks, but nobody was happy with that, because 7 is too ugly a number; so the assumption was that the picture must be reconstructed in terms of 2 and 3, which are nice numbers. And after further experimental work stimulated by that intuition, the prettier picture turned out to be true. I think that that kind of reasoning does go on.


Free as in Freedom by Sam Williams


Asperger Syndrome, cognitive dissonance, Debian, East Village, Hacker Ethic, informal economy, Isaac Newton, John Conway, Maui Hawaii, Murray Gell-Mann, profit motive, Richard Feynman, Richard Stallman, Silicon Valley, slashdot, software patent, Steven Levy, Ted Nelson, urban renewal, VA Linux, Y2K

Stallman characterizes his transition from weekend hacker to full-time AI Lab denizen as a series of painful misfortunes that could only be eased through the euphoria of hacking. As Stallman himself has said, the first misfortune was his graduation from Harvard. Eager to continue his studies in physics, Stallman enrolled as a graduate student at MIT. The choice of schools was a natural one. Not only did it give Stallman the chance to follow the footsteps of great MIT alumni: William Shockley ('36), Richard P. Feynman ('39), and Murray Gell-Mann ('51), it also put him two miles closer to the AI Lab and its new PDP-10 computer. "My attention was going toward programming, but I still thought, well, maybe I can do both," Stallman says. Toiling in the fields of graduate-level science by day and programming in the monastic confines of the AI Lab by night, Stallman tried to achieve a perfect balance. The fulcrum of this geek teeter-totter was his 69 weekly outing with the folk-dance troupe, his one social outlet that guaranteed at least a modicum of interaction with the opposite sex.


The Singularity Is Near: When Humans Transcend Biology by Ray Kurzweil


additive manufacturing, AI winter, Alan Turing: On Computable Numbers, with an Application to the Entscheidungsproblem, Albert Einstein, anthropic principle, Any sufficiently advanced technology is indistinguishable from magic, artificial general intelligence, augmented reality, autonomous vehicles, Benoit Mandelbrot, Bill Joy: nanobots, bioinformatics, brain emulation, Brewster Kahle, Brownian motion, business intelligence,, call centre, carbon-based life, cellular automata, Claude Shannon: information theory, complexity theory, conceptual framework, Conway's Game of Life, cosmological constant, cosmological principle, cuban missile crisis, data acquisition, Dava Sobel, David Brooks, Dean Kamen, disintermediation, double helix, Douglas Hofstadter,, epigenetics, factory automation, friendly AI, George Gilder, Gödel, Escher, Bach, informal economy, information retrieval, invention of the telephone, invention of the telescope, invention of writing, Isaac Newton, iterative process, Jaron Lanier, Jeff Bezos, job automation, job satisfaction, John von Neumann, Kevin Kelly, Law of Accelerating Returns, life extension, linked data, Loebner Prize, Louis Pasteur, mandelbrot fractal, Mikhail Gorbachev, mouse model, Murray Gell-Mann, mutually assured destruction, natural language processing, Network effects, new economy, Norbert Wiener, oil shale / tar sands, optical character recognition, pattern recognition, phenotype, premature optimization, randomized controlled trial, Ray Kurzweil, remote working, reversible computing, Richard Feynman, Richard Feynman, Rodney Brooks, Search for Extraterrestrial Intelligence, semantic web, Silicon Valley, Singularitarianism, speech recognition, statistical model, stem cell, Stephen Hawking, Stewart Brand, strong AI, superintelligent machines, technological singularity, Ted Kaczynski, telepresence, The Coming Technological Singularity, transaction costs, Turing machine, Turing test, Vernor Vinge, Y2K, Yogi Berra

But if we can determine that the file (or a portion of the file) in fact represents pi, we can easily express it (or that portion of it) very compactly as "pi to one million bits of accuracy." Since we can never be sure that we have not overlooked some even more compact representation of an information sequence, any amount of compression sets only an upper bound for the complexity of the information. Murray Gell-Mann provides one definition of complexity along these lines. He defines the "algorithmic information content" (Ale) of a set of information as "the length of the shortest program that will cause a standard universal computer to print out the string of bits and then halt."4 However, Gell-Mann's concept is not fully adequate. If we have a file with random information, it cannot be compressed. That observation is, in fact, a key criterion for determining if a sequence of numbers is truly random.

· Dictionary coders, which use a dynamically updated symbol dictionary to represent patterns (examples: Lempel-Ziv, Lempel-Ziv-Welch, and DEFLATE). · Block-sorting compression, which reorganizes characters rather than using a code alphabet; run-length compression can then be used to compress the repeating strings (example: Burrows-Wheeler transform). · Prediction by partial mapping, which uses a set of symbols in the uncompressed file to predict how often the next symbol in the file appears. 4. Murray Gell-Mann, "What Is Complexity?" in Complexity, vol. 1 (New York: John Wiley and Sons, 1995). 5. The human genetic code has approximately six billion (about 1010) bits, not considering the possibility of compression. So the 1027 bits that theoretically can be stored in a one-kilogram rock is greater than the genetic code by a factor of 1017. See note 57 below for a discussion of genome compression. 6.


pages: 286 words: 90,530

Richard Dawkins: How a Scientist Changed the Way We Think by Alan Grafen; Mark Ridley


Alfred Russel Wallace, Arthur Eddington, bioinformatics, cognitive bias, computer age, conceptual framework, Dava Sobel, double helix, Douglas Hofstadter, epigenetics, Fellow of the Royal Society, Haight Ashbury, interchangeable parts, Isaac Newton, Johann Wolfgang von Goethe, John von Neumann, loose coupling, Murray Gell-Mann, Necker cube, phenotype, profit maximization, Ronald Reagan, Stephen Hawking, Steven Pinker, the scientific method, theory of mind, Thomas Kuhn: the structure of scientific revolutions, Yogi Berra

Even as television gave up on many aspects of science, and newspapers retreated to covering technology, environmental scares, and popular psychology, the book trade was making stars of scientists. People like Richard Leakey, Jane Goodall, Carl Sagan, and Steven Pinker could fill the biggest lecture halls as Thomas Henry Huxley had once done. But booms usually end in busts and the boom in popular science publishing was no exception. The deflation began after the debacle of Murray Gell-Mann’s The Quark and the Jaguar (1994), which Brockman sold for an advance of $550,000 for American rights alone. Gell-Mann returned much of the advance after failing to complete the book as promised, though it did eventually come out. The next year the phenomenon was Longitude by Dava Sobel and narrative non-fiction, rather than argument, became all the rage. Cod, tulips, salt, and zero were the themes of the moment, not to mention, on a grander and more analytical scale, guns, germs, and steel.


pages: 465 words: 103,303

The Cancer Chronicles: Unlocking Medicine's Deepest Mystery by George Johnson


Atul Gawande, Cepheid variable, Columbine, dark matter, discovery of DNA, double helix, Drosophila, epigenetics, Gary Taubes, Harvard Computers: women astronomers, Isaac Newton, Magellanic Cloud, meta analysis, meta-analysis, microbiome, mouse model, Murray Gell-Mann, phenotype, profit motive, stem cell

A winner of the AAAS Science Journalism Award, he is codirector of the Santa Fe Science Writing Workshop and a former Alicia Patterson fellow. He lives in Santa Fe, New Mexico, and can be found on the Web at ALSO BY GEORGE JOHNSON The Ten Most Beautiful Experiments Miss Leavitt’s Stars: The Untold Story of the Woman Who Discovered How to Measure the Universe A Shortcut Through Time: The Path to the Quantum Computer Strange Beauty: Murray Gell-Mann and the Revolution in Twentieth-Century Physics Fire in the Mind: Science, Faith, and the Search for Order In the Palaces of Memory: How We Build the Worlds Inside Our Heads Machinery of the Mind: Inside the New Science of Artificial Intelligence Architects of Fear: Conspiracy Theories and Paranoia in American Politics


pages: 282 words: 89,436

Einstein's Dice and Schrödinger's Cat: How Two Great Minds Battled Quantum Randomness to Create a Unified Theory of Physics by Paul Halpern


Albert Einstein, Albert Michelson, Arthur Eddington, Brownian motion, clockwork universe, cosmological constant, dark matter, double helix, Ernest Rutherford, Fellow of the Royal Society, Isaac Newton, John von Neumann, lone genius, Murray Gell-Mann, New Journalism, Richard Feynman, Richard Feynman, Schrödinger's Cat, Solar eclipse in 1919, The Present Situation in Quantum Mechanics

A segment of the original Higgs field would remain as a massive particle called the Higgs boson. By then, so many new elementary particles had been discovered that choosing which fermions to label as fundamental proved critical. Most physicists suspected that protons and neutrons were not fundamental but instead were made up of constituents. The subcomponents were at first called different things, but eventually the physics community settled on the term “quarks,” chosen by Murray Gell-Mann for the way it sounded to him. He spotted the word in a passage from James Joyce’s Finnegans Wake, “Three quarks for Muster Mark.” As there are three quarks each in protons and neutrons (and in all particles in the category called baryons), the moniker seemed appropriate. Once quarks were catalogued, they seemed to fall into distinct families, called generations. The first generation, including “up” and “down,” comprises the quarks that form protons and neutrons.


pages: 336 words: 113,519

The Undoing Project: A Friendship That Changed Our Minds by Michael Lewis


Albert Einstein, availability heuristic, Cass Sunstein, choice architecture, complexity theory, Daniel Kahneman / Amos Tversky, Donald Trump, Douglas Hofstadter, endowment effect, feminist movement, framing effect, hindsight bias, John von Neumann, loss aversion, medical residency, Menlo Park, Murray Gell-Mann, Nate Silver, New Journalism, Richard Thaler, Saturday Night Live, statistical model, Walter Mischel, Yom Kippur War

“There was nothing we liked to do more than to get together and talk about him, over and over and over.” There were—for starters—the stories about the funny things Amos had said, usually directed at people whom he found full of themselves. He had listened to an American economist talk about how so-and-so was stupid and so-and-so was a fool, then said, “All your economic models are premised on people being smart and rational, and yet all the people you know are idiots.” He’d heard Murray Gell-Mann, a Nobel laureate in physics, hold forth on seemingly every subject under the sun. After Gell-Man was done, Amos said, “You know, Murray, there is no one in the world who is as smart as you think you are.” Once, after Amos gave a talk, an English statistician had approached him. “I don’t usually like Jews but I like you,” the statistician said. Amos replied, “I usually like Englishmen but I don’t like you.”


pages: 379 words: 113,656

Six Degrees: The Science of a Connected Age by Duncan J. Watts


Berlin Wall, Bretton Woods, business process, corporate governance, Drosophila, Erdős number, experimental subject, Frank Gehry, Geoffrey West, Santa Fe Institute, invisible hand, Long Term Capital Management, market bubble, Milgram experiment, Murray Gell-Mann, Network effects, new economy, Norbert Wiener, Paul Erdős, rolodex, Ronald Coase, Silicon Valley, supply-chain management, The Nature of the Firm, The Wealth of Nations by Adam Smith, Toyota Production System, transaction costs, transcontinental railway, Y2K

My thanks also go to the generous souls—Karen Barkey, Peter Bearman, Chris Calhoun, Brenda Coughlin, Priscilla Ferguson, Herb Gans, David Gibson, Mimi Munson, Mark Newman, Pavia Rosati, Chuck Sabel, David Stark, Chuck Tilly, Doug White, and especially Tom McCarthy—who volunteered to read and comment on various drafts. Gueorgi Kossinets provided invaluable assistance in preparing the many figures, and Mary Babcock did a fantastically thorough job of copy editing. At a more general level, I am deeply grateful to a number of people at Columbia University—Peter Bearman, Mike Crowe, Chris Scholz, and David Stark—as well as Murray Gell-Mann, Ellen Goldberg, and Erica Jen at the Santa Fe Institute and Andrew Lo at MIT for giving me the freedom and support to pursue my selfish interests, even sometimes at questionable benefit to their own. The National Science Foundation (under grant 0094162), Intel Corporation, the Santa Fe Institute, and the Columbia Earth Institute have provided critical financial support to my teaching and research, as well as to a series of seminal workshops in Santa Fe and New York, out of which numerous collaborations and projects have sprung.


pages: 310 words: 89,838

Massive: The Missing Particle That Sparked the Greatest Hunt in Science by Ian Sample


Albert Einstein, Arthur Eddington, cuban missile crisis, dark matter, Donald Trump, double helix, Ernest Rutherford, Gary Taubes, Isaac Newton, John Conway, John von Neumann, Menlo Park, Murray Gell-Mann, Richard Feynman, Richard Feynman, Ronald Reagan, Stephen Hawking, uranium enrichment, Yogi Berra

This interpretation was on the right track, but it was incomplete. Scientists later discovered that protons and neutrons were not elementary particles of matter at all. Unlike the electron, protons and neutrons were made up of even smaller particles called quarks. It took a long time for physicists to accept that quarks were real, not least because no one had ever seen one. The American physicists Murray Gell-Mann and Georg Zweig first put forward the idea in 1964, though they hit on the theory separately.10 They realized that the behavior of protons and neutrons made sense if each contained a trio of quarks. The proposal was still contentious when Peter Higgs visited the Institute for Advanced Study in 1966. Quarks were only widely embraced as true elementary particles of matter some years later. In the half-century or so that followed Thomson’s work on the electron, physicists identified around two hundred different kinds of particles, most of which were pairs or triplets of other subatomic ingredients. 11 The proliferation of particles was getting confusing, but order came in the mid-1970s with what must rank as the crowning glory of particle physics.


pages: 383 words: 108,266

Predictably Irrational, Revised and Expanded Edition: The Hidden Forces That Shape Our Decisions by Dan Ariely


air freight, Al Roth, Bernie Madoff, Burning Man, butterfly effect, Cass Sunstein, collateralized debt obligation, computer vision, corporate governance, credit crunch, Daniel Kahneman / Amos Tversky, David Brooks, delayed gratification, endowment effect, financial innovation, fudge factor, Gordon Gekko, greed is good, housing crisis, invisible hand, lake wobegon effect, late fees, loss aversion, market bubble, Murray Gell-Mann, payday loans, placebo effect, price anchoring, Richard Thaler, second-price auction, Silicon Valley, Skype, The Wealth of Nations by Adam Smith, Upton Sinclair

I also hope that I have been able to share with you my enthusiasm for the study of rationality and irrationality. In my opinion, studying human behavior is a fantastic gift because it helps us better understand ourselves and the daily mysteries we encounter. Although the topic is important and fascinating, it is not easy to study, and there is still a lot of work ahead of us. As the Nobel laureate Murray Gell-Mann once said, “Think how hard physics would be if particles could think.” Irrationally yours, Dan Ariely PS: If you want to participate in this journey, log on to, sign up for a few of our studies, and leave us your ideas and thoughts. Reflections and Anecdotes about Some of the Chapters Reflections on Dating and Relativity (Chapter 1) In Chapter 1, on relativity, I offered some dating advice.


pages: 362 words: 97,862

Physics in Mind: A Quantum View of the Brain by Werner Loewenstein


Alan Turing: On Computable Numbers, with an Application to the Entscheidungsproblem, Albert Einstein, complexity theory, dematerialisation, discovery of DNA, Gödel, Escher, Bach, Henri Poincaré, informal economy, information trail, Isaac Newton, Murray Gell-Mann, Necker cube, Norbert Wiener, Richard Feynman, Richard Feynman, stem cell, trade route, Turing machine

And the fact that what gets lost are quantum bits of information, rather than classical Shannon bits, underscores this point. Indeed, decoherence may well be the most fundamental irreversible process in nature. Why Our Weltanschauung Is So Narrow: An Unexpected Lesson for Philosophy The decoherence proposal has come a long way in the past few years and, in the hands of Zeh, Erich Joos, Wojciech Zurek, Murray Gell-Mann, Jim Hartle, and others, has grown into a comprehensive theory. It is a theory that leaves hardly anything untouched, and not just physics. Its reach goes well beyond, to what once was the domain of philosophers: epistemology, the theory of knowledge. This brings us back to our center of interest, the issue of whether the quantum wave gets entangled with consciousness. In that regard, the decoherence theory gives us a freedom of thought the founders of quantum theory never had.


pages: 523 words: 148,929

Physics of the Future: How Science Will Shape Human Destiny and Our Daily Lives by the Year 2100 by Michio Kaku


agricultural Revolution, AI winter, Albert Einstein, augmented reality, Bill Joy: nanobots, bioinformatics, blue-collar work, British Empire, Brownian motion, cloud computing, Colonization of Mars, DARPA: Urban Challenge, delayed gratification, double helix, Douglas Hofstadter,, friendly AI, Gödel, Escher, Bach, hydrogen economy, I think there is a world market for maybe five computers, industrial robot, invention of movable type, invention of the telescope, Isaac Newton, John von Neumann, life extension, Louis Pasteur, Mahatma Gandhi, Mars Rover, megacity, Murray Gell-Mann, new economy, oil shale / tar sands, optical character recognition, pattern recognition, planetary scale, postindustrial economy, Ray Kurzweil, refrigerator car, Richard Feynman, Richard Feynman, Rodney Brooks, Ronald Reagan, Search for Extraterrestrial Intelligence, Silicon Valley, Simon Singh, speech recognition, stem cell, Stephen Hawking, Steve Jobs, telepresence, The Wealth of Nations by Adam Smith, Thomas L Friedman, Thomas Malthus, trade route, Turing machine, uranium enrichment, Vernor Vinge, Wall-E, Walter Mischel, Whole Earth Review, X Prize

I would like to apologize for dragging a TV camera crew from BBC-TV or the Discovery and Science channels into their laboratories and thrusting a microphone and TV camera in front of their faces. This might have disrupted their research, but I hope that the final product was worth it. I would like to thank some of these pioneers and trailblazers: Eric Chivian, Nobel laureate, Center for Health and the Global Environment, Harvard Medical School Peter Doherty, Nobel laureate, St. Jude Children’s Research Hospital Gerald Edelman, Nobel laureate, Scripps Research Institute Murray Gell-Mann, Nobel laureate, Santa Fe Institute and Caltech Walter Gilbert, Nobel laureate, Harvard University David Gross, Nobel laureate, Kavli Institute for Theoretical Physics the late Henry Kendall, Nobel laureate, MIT Leon Lederman, Nobel laureate, Illinois Institute of Technology Yoichiro Nambu, Nobel laureate, University of Chicago Henry Pollack, Nobel laureate, University of Michigan Joseph Rotblat, Nobel laureate, St.


pages: 566 words: 144,072

In the Graveyard of Empires: America's War in Afghanistan by Seth G. Jones


business climate, clean water, colonial rule, cuban missile crisis, failed state, friendly fire, invisible hand, Khyber Pass, Mikhail Gorbachev, Murray Gell-Mann, open borders, purchasing power parity, RAND corporation, Ronald Reagan, trade route

Military Says Iraq Is the Priority,” Los Angeles Times, December 12, 2007. 66. Author interviews with senior U.S. Marine Corps officials, Washington, DC, December 10, 2007. 67. Thom Shanker, “Gates Decides Against Marines’ Offer to Leave Iraq for Afghanistan,” New York Times, December 6, 2007, p. A16. Chapter Thirteen 1. PBS Frontline, “The Return of the Taliban,” Written, produced, and reported by Martin Smith. Airdate: October 3, 2006. 2. See, for example, Murray Gell-Mann, The Quark and the Jaguar (New York: Henry Holt and Company, 1994); John Holland, Hidden Order (Reading, MA: Addison-Wesley, 1995); Kevin Dooley, “A Complex Adaptive Systems Model of Organization Change,” Nonlinear Dynamics, Psychology, and Life Science, vol. 1, no. 1, 1997, pp. 69–97. 3. Author interview with Commander Larry Legree, June 10, 2008. 4. Joby Warrick, “CIA Places Blame for Bhutto Assassination,” Washington Post, January 18, 2008, p.


pages: 492 words: 149,259

Big Bang by Simon Singh


Albert Einstein, Albert Michelson, All science is either physics or stamp collecting, Andrew Wiles, anthropic principle, Arthur Eddington, Astronomia nova, Brownian motion, carbon-based life, Cepheid variable, Chance favours the prepared mind, Commentariolus, Copley Medal, cosmic abundance, cosmic microwave background, cosmological constant, cosmological principle, dark matter, Dava Sobel, Defenestration of Prague, discovery of penicillin, Dmitri Mendeleev, Edmond Halley, Edward Charles Pickering, Eratosthenes, Ernest Rutherford, Erwin Freundlich, Fellow of the Royal Society, fudge factor, Hans Lippershey, Harlow Shapley and Heber Curtis, Harvard Computers: women astronomers, Henri Poincaré, horn antenna, if you see hoof prints, think horses—not zebras, Index librorum prohibitorum, invention of the telescope, Isaac Newton, John von Neumann, Karl Jansky, Louis Daguerre, Louis Pasteur, luminiferous ether, Magellanic Cloud, Murray Gell-Mann, music of the spheres, Olbers’ paradox, On the Revolutions of the Heavenly Spheres, Paul Erdős, retrograde motion, Richard Feynman, Richard Feynman, scientific mainstream, Simon Singh, Solar eclipse in 1919, Stephen Hawking, the scientific method, Thomas Kuhn: the structure of scientific revolutions, unbiased observer, V2 rocket, Wilhelm Olbers, William of Occam

MendeleyeVs Dream Paul Strathern The story of the chemist who pioneered the Periodic Table, an icon of modern science. Snowball Earth Gabrielle Walker A great detective story about a hitherto unknown period of Earth’s history. The Fifth Miracle Paul Davies How did life get started? Davies looks at the latest ideas and breakthroughs. Strange Beauty George Johnson A highly readable biography of Murray Gell-Mann, one of the great physicists of the twentieth century. The Cogwheel Brain Doron Swade The heroic tale of Charles Babbage, a Victorian genius who tried to build a mechanical computer. Find Out More Websites selected by Simon Singh This NASA website offers a tutorial, Cosmology 101, that covers everything from the development of the core Big Bang model to the latest ideas and observations.


pages: 1,396 words: 245,647

The Strangest Man: The Hidden Life of Paul Dirac, Mystic of the Atom by Graham Farmelo


Albert Einstein, anti-communist, Arthur Eddington, Berlin Wall, cuban missile crisis, double helix, Ernest Rutherford, Fall of the Berlin Wall, Fellow of the Royal Society, financial independence, gravity well, Henri Poincaré, invention of radio, invisible hand, Isaac Newton, John von Neumann, Kevin Kelly, Murray Gell-Mann, Richard Feynman, Richard Feynman, Simon Singh, Solar eclipse in 1919, Stephen Hawking, strikebreaker, University of East Anglia

The barrel-chested Kapitza, standing by a blackboard and easel, pointed out that it was now odds-on that experimenters would soon observe the effect; the question was: would Dirac and Kapitza be alive to see it?28 A few days after the Kapitzas left Cambridge, Dirac switched his attention from the past to the future. He attended an entire course of lectures on modern particle physics given by the American theoretician Murray Gell-Mann, a source of many of the most productive new ideas in particle physics since the early 1950s. Then thirty-six and still at the height of his powers, he was admired for his imagination and technical brilliance but feared for his waspish tongue and disliked for his egoism, not least by Dirac.29 In the 1960s, Gell-Mann and others suggested that strongly interacting particles could be classified in mathematical patterns, and he used one of them in 1963 to predict the existence of a new particle.


pages: 654 words: 204,260

A Short History of Nearly Everything by Bill Bryson


Albert Einstein, Albert Michelson, Alfred Russel Wallace, All science is either physics or stamp collecting, Arthur Eddington, Barry Marshall: ulcers, Brownian motion, California gold rush, Cepheid variable, clean water, Copley Medal, cosmological constant, dark matter, Dava Sobel, David Attenborough, double helix, Drosophila, Edmond Halley, Ernest Rutherford, Fellow of the Royal Society, Harvard Computers: women astronomers, Isaac Newton, James Watt: steam engine, John Harrison: Longitude, Kevin Kelly, Kuiper Belt, Louis Pasteur, luminiferous ether, Magellanic Cloud, Menlo Park, Murray Gell-Mann, out of africa, Richard Feynman, Richard Feynman, Stephen Hawking, supervolcano, Thomas Malthus, Wilhelm Olbers

To read even an elementary guide to particle physics nowadays you must now find your way through lexical thickets such as this: “The charged pion and antipion decay respectively into a muon plus antineutrino and an antimuon plus neutrino with an average lifetime of 2.603 x 10-8 seconds, the neutral pion decays into two photons with an average lifetime of about 0.8 x 10-16 seconds, and the muon and antimuon decay respectively into . . .” And so it runs on—and this from a book for the general reader by one of the (normally) most lucid of interpreters, Steven Weinberg. In the 1960s, in an attempt to bring just a little simplicity to matters, the Caltech physicist Murray Gell-Mann invented a new class of particles, essentially, in the words of Steven Weinberg, “to restore some economy to the multitude of hadrons”—a collective term used by physicists for protons, neutrons, and other particles governed by the strong nuclear force. Gell-Mann's theory was that all hadrons were made up of still smaller, even more fundamental particles. His colleague Richard Feynman wanted to call these new basic particles partons, as in Dolly, but was overruled.


The Man Behind the Microchip: Robert Noyce and the Invention of Silicon Valley by Leslie Berlin


Apple II, collective bargaining, computer age, George Gilder, informal economy, laissez-faire capitalism, low skilled workers, means of production, Menlo Park, Murray Gell-Mann, open economy, Richard Feynman, Richard Feynman, Ronald Reagan, Sand Hill Road, Silicon Valley, Silicon Valley startup, Steve Jobs, Steve Wozniak, union organizing, War on Poverty, women in the workforce, Yom Kippur War

The wartime combination of increased federal funds and a pool of top-notch European physicists eager to emigrate worked to Slater’s advantage. By the time Noyce came to campus, some of the best-known physicists in the world— nuclear physicists Herman Feshbach and Victor Weisskopf, microwave physicist Nathaniel Frank, acoustics and operations research pioneer Philip Morse—were members of the faculty. The department was also home to the most famous graduate student in America, Murray Gell-Mann, who had arrived a year before Noyce. A prodigy who taught himself calculus at age seven and began studying physics at Yale just a few weeks shy of his fifteenth birthday, Gell-Mann would emerge with his PhD in quantum theory after only two years in the program. He was one of two students in graduate school with Noyce who would one day win the Nobel Prize for Physics. It was an intimidating place by any standard, and presumably even more so for a student from a two-man Physics Department led by someone who did not even have a PhD.


pages: 846 words: 232,630

Darwin's Dangerous Idea: Evolution and the Meanings of Life by Daniel C. Dennett


Albert Einstein, Alfred Russel Wallace, anthropic principle, buy low sell high, cellular automata, combinatorial explosion, complexity theory, computer age, conceptual framework, Conway's Game of Life, Danny Hillis, double helix, Douglas Hofstadter, Drosophila, finite state, Gödel, Escher, Bach, In Cold Blood by Truman Capote, invention of writing, Isaac Newton, Johann Wolfgang von Goethe, John von Neumann, Murray Gell-Mann, New Journalism, non-fiction novel, Peter Singer: altruism, phenotype, price mechanism, prisoner's dilemma, QWERTY keyboard, random walk, Richard Feynman, Richard Feynman, Rodney Brooks, Schrödinger's Cat, Stephen Hawking, Steven Pinker, strong AI, the scientific method, theory of mind, Thomas Malthus, Turing machine, Turing test

(And if you can't write a good book about evolution witii the help of this sterling group of editors, you should give up!) Many others answered crucial questions, and clarified my thinking in {14} dozens of conversations: Ron Amundsen, Robert Axelrod, Jonathan Bennett, Robert Brandon, Madeline Caviness, Tim Clutton-Brock, Leda Cosmides, Helena Cronin, Arthur Danto, Mark De Voto, Marc Feldman, Murray Gell-Mann, Peter Godfrey-Smith, Steve Gould, Danny Hillis, John Holland, Alastair Houston, David Hoy, Bredo Johnsen, Stu Kauffman, Chris Langton, Dick Lewontin, John Maynard Smith, Jim Moore, Roger Penrose, Joanne Phillips, Robert Richards, Mark and Matt (the Ridley conspecifics), Dick Schacht, Jeff Schank, Elliot Sober, John Tooby, Robert Trivers, Peter Van Inwagen, George Williams, David Sloan Wilson, Edward O.


pages: 898 words: 266,274

The Irrational Bundle by Dan Ariely


accounting loophole / creative accounting, air freight, Albert Einstein, banking crisis, Bernie Madoff, Black Swan, Broken windows theory, Burning Man, business process, cashless society, Cass Sunstein, clean water, cognitive dissonance, computer vision, corporate governance, credit crunch, Credit Default Swap, Daniel Kahneman / Amos Tversky, delayed gratification, Donald Trump, endowment effect, Exxon Valdez, first-price auction, Frederick Winslow Taylor, fudge factor, George Akerlof, Gordon Gekko, greed is good, happiness index / gross national happiness, Jean Tirole, job satisfaction, knowledge economy, knowledge worker, lake wobegon effect, late fees, loss aversion, Murray Gell-Mann, new economy, Peter Singer: altruism, placebo effect, price anchoring, Richard Feynman, Richard Feynman, Richard Thaler, Saturday Night Live, Schrödinger's Cat, second-price auction, shareholder value, Silicon Valley, Skype, software as a service, Steve Jobs, The Wealth of Nations by Adam Smith, The Wisdom of Crowds, ultimatum game, Upton Sinclair, Walter Mischel, young professional

I also hope that I have been able to share with you my enthusiasm for the study of rationality and irrationality. In my opinion, studying human behavior is a fantastic gift because it helps us better understand ourselves and the daily mysteries we encounter. Although the topic is important and fascinating, it is not easy to study, and there is still a lot of work ahead of us. As the Nobel laureate Murray Gell-Mann once said, “Think how hard physics would be if particles could think.” Irrationally yours, Dan Ariely PS: If you want to participate in this journey, log on to, sign up for a few of our studies, and leave us your ideas and thoughts. Thanks Over the years I have been fortunate to work on joint research projects with smart, creative, generous individuals.