43 of 43 people found the following review helpful:
4.0 out of 5 stars
May the Flow Be With You, January 3, 2006
This review is from: Into the Cool: Energy Flow, Thermodynamics, and Life (Hardcover)
Life has both purpose and direction, assert the authors of this bold and stimulating work. Neither God nor Darwin satisfactorily accounts for life's forward momentum, but the Second Law of Thermodynamics does.
Thermodynamics began as the study of energy transformation in closed systems. The second law says that a system left to its own devices will lose its capacity to transform energy into work, eventually reaching a state of equilibrium. What's hot becomes cool, which for living systems such as you and I isn't a good thing. Our goal is to stay near but not at equilibrium by importing energy into ourselves and being smart about how much energy we use to stay in a stable state. It's a tricky balancing act: expend too much energy and you can't sustain your self over a long lifetime; use too little and equilibrium wins, bringing you to a full stop; export too much waste in the process and you damage the sources of energy you need to keep going.
In the first part of the book, Schneider and Sagan move the discussion of thermodynamics from classical closed systems to complex open systems. They label these open systems "non-equilibrium thermodynamics" or NET. What NET systems abhor isn't a vacuum, but a gradient, which is a disparity in temperature, pressure, or some other physical force across a distance. Complex systems, living or non-living, will work to degrade gradients in the most energy efficient manner possible, becoming bigger, more organized and more sophisticated in the process. Part II is a fascinating look at how non-living systems such as Benard cells, Taylor votices and tornadoes react in complex, coherent patterns to break down gradients, almost seeming to exhibit a form of intelligence as they organize matter in the most efficient manner to reduce the disparity confronting them.
Part III examines the effect of thermodynamic action on living systems. If, as the authors maintain, the purpose of a living system is to "catch, store and degrade gradients" then "entropic dissipation propels evolutionary structuring; nature's force gives it form." You'll come away with a new appreciation of the complexity, utility and elegance of mature ecosystems such as old growth forests. The trees in such forests work over time to break down the disparity between the sun's heat and the earth's surface, helping to regulate the temperature of the planet in the process. They do this using a minimal amount of external energy, thereby causing much less ecological disruption than we do in trying to regulate air temperature. Trees make HVAC systems look primitive; we can learn a lot from them.
The last section deals specifically with humans. You, too, argue the authors, are more than a set of blindly replicating genes. Viewing yourself as a complex open system has implications for your health, mainly of the use it or lose it variety. The authors also apply NET systems rules to economics, urban planning, and political science. As with most attempts to bring physical laws into humanity's group endeavors, most of the conclusions are too general to be interesting outside the realm of systems theory - you won't learn how to predict the direction of interest rates, where the next hot neighborhood will be, or which party will take the Senate in the next US congressional elections.
The final chapter discusses the purpose of life. The higher purpose of humans is apparently to seek out and efficiently destroy energy gradients without destroying their sources of energy or their selves in the process. Procreation is the way that you as a complex, open system sustain your energy degrading function over a span longer than your natural lifetime. Or, as religious philosopher Alan Watts puts it, humans are tubes, "which put things in at one end and let them out at the other, which both keeps them doing it, and in the long run wears them out. So to keep the farce going, the tubes find ways of making new tubes..." Understanding our purpose better positions us to understand that we're not the sum and center of the universe, and to know how we fit into the "cosmically creative process" that builds up structure, complexity and intelligence as it destroys the solar electromagnetic gradient between the extremely hot sun and the extremely cold outer space of the universe.
If the image of your self as a metastable open system that's inferior to tropical rain forests in your gradient reducing capabilities doesn't make you leap out of bed in the morning, you can use your glucose-fed mental processes to invent a grander, more comforting eschatology. You won't be the first to do so.
As should be evident by now, the authors will wade into any pool of scientific controversy - how the universe was formed, how life started, why evolution by itself is an inadequate explanation of life's direction over the past four billion years, why intelligent design is hokum. This book is a brilliant, provocative argument for why we need add a temporal, energetic element to any practical discussion of how the universe works. In an appendix, they helpfully include the organizing principles of open thermodynamic systems. It will be interesting to see whether other scientists will heed Schnieder and Sagan's call to push past the boundaries of their current disciplines and help flesh out this promising schema.
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14 of 14 people found the following review helpful:
5.0 out of 5 stars
Benard's Cells, Human Life, and Thermodynamics, August 15, 2005
This review is from: Into the Cool: Energy Flow, Thermodynamics, and Life (Hardcover)
Stimulating book! By far, this compendium is a `huge' step in the right direction. If, resultantly, life is to be defined via energy and matter interactions, according to which thermodynamics is home, than by all means Into the Cool has done justice. If not, nevertheless, we still have ground-breaking work. In the near future, I envisage a definitive set of twelve books on the thermodynamics of human life. Into the cool will certainly be in this collection.
Libb Thims, Chemical Engineer
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17 of 18 people found the following review helpful:
5.0 out of 5 stars
Very impressive effort, April 10, 2006
This review is from: Into the Cool: Energy Flow, Thermodynamics, and Life (Hardcover)
Works of scientific significance tend to fall into one of two categories: those that present new material, and those that reconfigure existing material into something that is new by virtue of its originality of insight. "Into the Cool" falls decisively into the second category, and Eric Schneider and Dorion Sagan have created a book that is as much concerned with philosophy of science as it is about science. The book seamlessly presents the historical and philosophical evolution of a fundamental principle (the second law of thermodynamics as applied to open systems) and develops the implications of the principle in a staggeringly wide range of contexts. In doing so, the authors have avoided the gratuitous descent into the intentionally obscure that mars so much of "popular" scientific writing, and have given us a work that is engaging, lucid and supremely approachable. Their approach risks repetition of material, and the book is not immune to that criticism. In the book's finest moments, however, the authors are able to exploit that repetition by presenting their material in a variety of contexts that collectively support the validity of their argument. In the section on economics, for example (economics in a work on thermodynamics!), the authors make a persuasive case for viewing markets as organically derived from, rather than merely analogical to, the implications of the second law. The authors' treatment of this argument requires less in the way of philosophical gymnastics than might be imagined, and their exposition makes the unfolding of the logic seem almost inevitable. Because of the richness of the material, this is a work that demands more than one reading. Fortunately, the warmth and sincerity of the writing make this book a joy, rather than the heavy going that might easily have otherwise resulted. Highly recommended.
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