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Politics : Evolution -- Ignore unavailable to you. Want to Upgrade?


To: Brumar89 who wrote (39715)7/28/2013 6:57:19 PM
From: 2MAR$  Read Replies (1) | Respond to of 69300
 
The beauty of introducing that natural tendency towards complexity within the universal framework/astrophysics is really elegant, this simply extends the entire process back to the beginning. A sequence of stellar & cosmic evolution i mentioned months ago that generates more complexity . Nice to know a very sentient Harvard astrophysicist agrees and sprightly offers a very simple,measureable theory that would also predict a planet like ours further sequencing into the emergence of biochemistry & life.

There are no gaps here requiring a dash here & dash there of super intelligence , only a very fine tuned continuum

beautiful:

The laws of non-equilibrium thermodynamics
amazon.com

Chaisson, an astrophysicist, above shows that the expansion of the universe is happening quickly enough that thermal gradients build up between the radiative energy of the universe and the matter of the universe. These gradients cause dissipative structures to form as the second law of thermodynamics kicks in to try to drive the universe toward equilibrium. Such dissipative structures are the sediment from which more complex dissipative structures can form as these gradients vary and persist. Spontaneous order occurs and becomes more complex without violating any of the laws of thermodynamics. Given enough time, there can arise metabolic dissipative structures - that is, life itself. And all due to the simple fact that the universe expands.

If Chaisson is right, he has unveiled a mind-blowingly simple reason regarding why the total complexity and total entropy of the universe should be able to increase at the same time even if the universe turns out to be a closed system. Why no-one ever discovered this simple reason before could be that no-one ever thought there was a need to look for one. That is, in our own little corner of the universe it is often thought that if you consider the Earth as an open system that all you need to explain the increasing complexity of the biosphere is the massive energy influx from the Sun. That may be true, but Chaisson may have just shown that ever-increasing complexity is not simply a local phenomenon of relatively small open systems at the expense of the rest of the universe but rather is a general principle of the universe as a whole.



To: Brumar89 who wrote (39715)7/28/2013 7:15:37 PM
From: 2MAR$  Read Replies (1) | Respond to of 69300
 
Eric Chaisson's book "Cosmic Evolution: The Rise of Complexity in Nature" gets a flurry of very enthusiastic reviews and this is not "new age" materialism, people are obviously resonating with his ideas, don't you just love science?!

[Chaisson's] discourse covers a wide range, from the physics of the early Universe to the origin and nature of life, touching on issues such as the 'anthropic principle' in cosmology, the thermodynamics of non-equilibrium systems, Darwinian views on the evolution of life seen in the context of present-day molecular biology, and issues of cultural development. Thus, he takes seriously the modern biological synthesis and also places it in its proper physical and cosmological context, emphasizing interesting causal links.
--George Ellis (Nature )

Using the leitmotif of rising complexity and order, Eric Chaisson delivers the epic of creation as understood by modern science, from microsecond zero to the origin of life on Earth. His command of the subject and clarity of exposition are admirable.
--E.O. Wilson

Eric Chaisson has written a definitive synthesis of what he calls a golden age of astrophysics and biochemistry. Cosmic Evolution presents a dramatic new world view for the twenty-first century, which provides a potential guide for understanding the nature of all material things. Every scientist, indeed anyone interested in humanity's future, should read this masterly and unique book.
--Brian Fagan, University of California, Santa Barbara

Eric Chaisson has thought deeply about the growth of complexity in the universe, as life and intelligence appear to have emerged from chaos. An astronomer whose lucid lectures draw a wide audience, Chaisson here tackles the issue head on, with conclusions that are as fascinating as life itself.
--George Field, Harvard University

A superb synthesis. Chaisson convincingly shows that free energy processing rates spurred the growth of complexity in the cosmos. Highly recommended.
--Hubert Reeves, Astrophysicist, C.N.R.S. France

This century ushers in a new unified view of Nature. We can see that the mechanisms of the stars and the structure of bacteria are governed by the same fundamental processes. We can detect the link between the hottest fusion reactions in gamma bursters and the essential metabolic reactions which give rise to and sustain life. Eric Chaisson has long been one of our most passionate and articulate informants about this emerging conception of the cosmos. Cosmic Evolution tells this new story in language anyone can understand.
--Gerald Soffen, Senior Astrobiologist, NASA

A fascinatingly synthetic book that unifies evolution from the Big Bang through biology and human culture. Chaisson is at once quantitative and poetic, grounding his work in physics while celebrating intelligence as 'the animated conduit through which the Universe comes to know itself.' Cosmic Evolution shows us a universe teeming with the complex products of evolution, including ourselves.
--Richard Wolfson, Professor of Physics, Middlebury College

Chaisson is an astrophysicist at Tufts University, who has written many popular books on science. His newest offering is concerned with 'time's arrow,' a curve of rising cosmic complexity beginning with the big bang...Chaisson argues that rising complexity can be explained (or at least roughly described) by the laws of non-equilibrium thermodynamics, without any need to postulate new kinds of science or mysticism. He shows that in an expanding universe, local pockets of order will naturally arise even as the overall disorder (entropy) of the universe increases...What is most original about Chaisson's argument is his proposal of a quantitative way to measure complexity, and to plot the course of cosmic evolution using this measure.
--Chet Raymo (Boston Globe 20001219)

Cosmic Evolution is an illuminating book, and one that should appeal to both scientists and general readers. Seeing how the expansion of the Universe spawned all the living complexity around and within us creates a fuller appreciation of the entwined laws and flaws of Nature...This is a book that will encourage a greater energy flow between astrophysics and bioscience.
--John D. Barrow (New Scientist )

Chaisson's project--the search for unifying patterns of change across the largest temporal and spatial scales--is a worthy one...[His] theory has the ring of rightness.
--Daniel W. McShea (American Scientist 20011101)

Chaisson's book provides exciting new testimony to the increasing power of non-equilibrium thermodynamics to change how we see ourselves and the world.
--Lynn Marguilis (Times Higher Education Supplement 20011109)

Chaisson argues that rising complexity can be explained... by the laws of nonequilibrium thermodynamics, without any need to postulate new kinds of science or mysticism ... What is most original about Chaisson's argument is his proposal of a quantitative way to measure complexity, and to plot the course of cosmic evolution using this measure?
--Chet Raymo (Boston Globe )

An illuminating book, and one that should appeal to both scientists and general readers ... This is a book that will encourage a greater energy flow between astrophysics and bioscience.
--John D. Barrow (New Scientist )

Chaisson's project--the search for unifying patterns of change across the largest temporal and spatial scales--is a worthy one... [His] theory has the ring of rightness?
--Daniel W. McShea (American Scientist )

Chaisson's book provides exciting new testimony to the increasing power of non-equilibrium thermodynamics to change how we see ourselves and the world?
--Lynn Margulis (Times Higher Education Supplement )

So Chaisson defines life as an "open, coherent, space- time structure maintained far from thermodynamic equilibrium by a flow of energy through it."…Chaisson's approach leaves one wondering, perhaps absurdly…In this creative, thought-provoking book, Chaisson shows how difficult even the most basic scientific question can turn out to be.
--Charles Seife (Wilson Quarterly )

Chaisson conducts an intriguing tour over vast realms of time and space. A lucid and sprightly guide, he brings forth original and provocative observations, while gathering a host of wonders in his cosmic embrace.
--Dudley Herschbach, 1986 Nobel Laureate in Chemistry

Surveys the grand scenario of cosmic evolution by examining natural changes among radiation, matter, and life within the context of big-bang cosmology. Using non- equilibrium thermodynamics and a suite of interdisciplinary arguments, the author follows the changes in energy within numerous well-known structures, including galaxies, stars, planets, and life. (The Astronomical Society of the Pacific )

[Chaisson's] discourse covers a wide range, from the physics of the early Universe to the origin and nature of life, touching on issues such as the 'anthropic principle' in cosmology, the thermodynamics of non-equilibrium systems, Darwinian views on the evolution of life seen in the context of present-day molecular biology, and issues of cultural development. Thus, he takes seriously the modern biological synthesis and also places it in its proper physical and cosmological context, emphasizing interesting causal links.
--George Ellis (Nature )