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Request for textbook recommendations

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General fitness, health and nutrition
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30 December 2003
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Jim Menegay
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  1. Before I started reading this group, I thought I had a pretty good layman's understanding of
    evolutionary theory and terminology. I realize now that my background in the technicalities is
    inadequate.

    Can anyone recommend a good graduate or advanced undergraduate textbook on the THEORY of evolution?

    I am not allergic to math. I would like to see some kind of treatment of evolution at different
    levels; even if the conclusion turns out to be that only one level (gene, organism, whatever) is
    important, I would like to see this proved, rather than merely asserted. I want to see treatments of
    ESS, kin selection, co-evolution of symbiotes, evolution of signaling mechanisms, evolution of life
    histories, etc.

    My primary interest is applying natural selection to origin of life, but it is not obvious just
    which ideas may be useful here, so I guess I need to know a little about everything.

    Maybe I need several textbooks - population genetics + something else. I'm open to suggestions.
    (That includes the suggestion that I should just start reading the key papers from J.Theor.Biol or
    where-ever. Which brings up a follow-up question - what journal should I go to for review articles
    on evolutionary theory? I get much of my molecular and biochem instruction from Ann.Rev.BioChem and
    from TIBS.)

    And, while I have people thinking about textbooks, let me ask for recommendations in some
    other fields:

    Biochem - preferably a second-year or two-year text. One not focused on human medicine. I want
    to know about enzyme mechanism and enzyme evolution, plus have a reference book on molecules
    and pathways.

    Bio-Organic chem - My current Organic reference is oriented to synthetic chemists. I want to be able
    to look at a proposed reaction and have some kind of notion of whether it is uphill or downhill and
    what the activation energy is.

    Bio-inorganic chem - I need to know more about co-ordination chemistry and surface chemistry.

    Molecular and Cell Biology - My copy of Darnell, Lodish, and Baltimore is out of date. Plus, I would
    prefer something that gives equal time to prokariotes.

    Are there any textbooks on Molecular Evolution? Are they any good?

    Thanks for the help.

  2. "Jim Menegay" <[email hidden]> wrote in message

    Quoted message said:


    Before I started reading this group, I thought I had a pretty good layman's understanding of
    evolutionary theory and terminology. I realize now that my background in the technicalities is
    inadequate.


    You probably do have a reasonable understanding of the basic issues. Evolution is one of the
    simplest scientific theories to understand, however, like any science, a large number of people are
    interested in it and try to push our understanding as far as it will go. So just reading "The
    Selfish Gene" will only start you on the road to being an evolutionary biologist.

    Quoted message said:


    Can anyone recommend a good graduate or advanced undergraduate > textbook


    on the THEORY of evolution?

    Quoted message said:


    Matt Ridley, Evolution. (This is quite a big volume, I think there may be a slim popular work by him
    of a similar name).

    Quoted message said:


    I am not allergic to math. I would like to see some kind of treatment of evolution at different
    levels; even if the conclusion turns out to be that only one level (gene, organism, whatever) is
    important, I would like to see this proved, rather than merely asserted. I want to see treatments
    of ESS, kin selection, co-evolution of symbiotes, evolution of signaling mechanisms, evolution of
    life histories, etc.


    If you really want to be au fait with the issues, you need to look a journals. My favourite journal
    is Brain and Behavioural Sciences, because every article is accompanied by critical comments from
    the peer reviewers. It often has material on the evolution of behaviour, and often human behaviour.
    TREE (Trends in Ecology and Evolution) is maybe a more relevant journal.

    Quoted message said:


    My primary interest is applying natural selection to origin of life, but it is not obvious just
    which ideas may be useful here, so I guess I need to know a little about everything.


    These are two separate issues. Evolution is what happens after replicating entities have appeared.
    Now all known organisms use the same amino acids, the same gentic code (almost), DNA and RNA,
    celular structure. What this means is that the most recent common ancestor was itself a fairly
    sophisticated organism. Using evolution, it is difficult to push back our understanding beyond this
    ancestor, but it cannot have appeared at a stroke.

    Quoted message said:


    And, while I have people thinking about textbooks, let me ask for recommendations in some
    other fields:


    I don't really know much about the biochemical side of things, which is relevant to the origin of
    life. I'm just a ball-and-stick biochemist. I doubt that you can learn enough chemistry to make a
    contribution to understanding the origin of life simply by reading textbooks, though that may be
    more a reflection of my inabilities as a student rather than the difficulty of the subject.

  3. Try Evolutionary Biology, Douglas J. Futuyma.

  4. Jim Menegay <[email hidden]> wrote or quoted:

    Quoted message said:

    Can anyone recommend a good graduate or advanced undergraduate textbook on the THEORY of
    evolution?

    I am not allergic to math. I would like to see some kind of treatment of evolution at different
    levels; even if the conclusion turns out to be that only one level (gene, organism, whatever) is
    important, I would like to see this proved, rather than merely asserted. I want to see treatments
    of ESS, kin selection, co-evolution of symbiotes, evolution of signaling mechanisms, evolution of
    life histories, etc.

    There's:

    Evolution - Mark Ridley Evolutionary Biology - Douglas Futuyma

    The former book does a good job of the "evolution at different levels" issue - IMO.

    Quoted message said:

    My primary interest is applying natural selection to origin of life, but it is not obvious just
    which ideas may be useful here, so I guess I need to know a little about everything.

    I would suggest considering life as being *defined* in terms of being an evolving system.

    If you have no living system, there's no evolution.

    Quoted message said:

    From this point of view, natural selection can only apply *after*


    the origin of life - and thus can't really be used to explain it.

    Natural selection is relevant to practically every aspect of life - *except* its origin.
    --
    __________
    |im |yler timtyler.orgtimtyler.org [email hidden] Remove lock to reply.

  5. Malcolm <[email hidden]> wrote or quoted:

    Quoted message said:

    Matt Ridley, Evolution. (This is quite a big volume, I think there may be a slim popular work by
    him of a similar name).

    There is. One is a text book. The other is a book of collected papers. Make sure you don't get them
    muddled up...
    --
    __________
    |im |yler timtyler.orgtimtyler.org [email hidden] Remove lock to reply.

  6. "Malcolm" <[email hidden]> wrote in message news:<[email hidden]>...

    Quoted message said:

    "Jim Menegay" <[email hidden]> wrote in message

    Quoted message said:

    [snip]
    My primary interest is applying natural selection to origin of life, but it is not obvious just
    which ideas may be useful here, so I guess I need to know a little about everything.


    These are two separate issues.

    I don't think so, for reasons given below.

    Quoted message said:

    Evolution is what happens after replicating entities have appeared.

    Replicating entities with reproducible variation, yes.

    Quoted message said:

    Now all known organisms use the same amino acids, the same gentic code (almost), DNA and RNA,
    celular structure. What this means is that the most recent common ancestor was itself a fairly
    sophisticated organism.

    This is well understood.

    Quoted message said:

    Using evolution, it is difficult to push back our understanding beyond this ancestor, but it
    cannot have appeared at a stroke.

    Certainly it could not have appeared at a stroke! Therefore, evolution must have been in operation
    long before this complex common ancestor. Something much simpler "appeared at a stroke" and then
    evolved to the LCA. An evolving "RNA world" is a cliche today, and I suspect that there may have
    been other evolving entities before there were RNA sequences.

    What I don't understand is your assertion that it is difficult to push back our understanding beyond
    the LCA, *using evolution*. It is certainly true that it is impossible to push back our
    understanding using phylogenic inference. But an understanding of the processes of evolution must
    certainly be useful in pushing our understanding back - after all, it is evolution that provides the
    dynamics leading from the "stroke" to the
    LCA. Every trait of the LCA must be examined to see whether it could plausibly have evolved, or
    whether it must have been primitive.

    But perhaps I am overreacting here. I use the phrase OOL to refer to the entire process - the
    "stroke" plus the evolution to the LCA. I prefer this usage, because it is far from clear that the
    first evolving entities were "alive". If you understand the phrase "origin of life" to refer only
    to events leading to the "stroke", then I am simply quibbling about your language. I have no wish
    to do that.

    Thank you very much for your other recommendations.

    Jim

  7. Tim Tyler <[email hidden]> wrote in message news:<[email hidden]>...

    Quoted message said:

    Jim Menegay <[email hidden]> wrote or quoted:

    Quoted message said:

    My primary interest is applying natural selection to origin of life, but it is not obvious just
    which ideas may be useful here, so I guess I need to know a little about everything.

    I would suggest considering life as being *defined* in terms of being an evolving system.

    If you have no living system, there's no evolution.

    Quoted message said:

    From this point of view, natural selection can only apply *after*


    the origin of life - and thus can't really be used to explain it.

    Natural selection is relevant to practically every aspect of life - *except* its origin.

    Thanks for the textbook recommendations. Regarding LIFE: I think I will assume my "Perplexed"
    personna in responding to you, but also see my response to Malcolm ;-)

    Dear Mr. Tyler,

    My younger son shares your view of the meaning of life. All he wants

    misses something important. He must, IMO, go out and get a job and learn how to maintain himself in
    some way. His current bountiful environment will not last forever. My friends Varella and Maturana
    agree with me.

    Perplexed in Peoria.

  8. Jim Menegay <[email hidden]> wrote or quoted:

    [Evolution - not very relevant to life's origin?]

    Quoted message said:

    I think I will assume my "Perplexed" personna in responding to you, but also see my response to
    Malcolm ;-)

    Malcom is defending this thesis:

    ``Using evolution, it is difficult to push back our understanding
    beyond this ancestor, but it cannot have appeared at a stroke.''

    ...which is debatable.

    It may be *difficult* to look beyond the LCA - but there are two possibilities for reconstruction:

    * Fossils;
    * Scars and hangovers;

    The first may be a bit far out - but the second has its uses.

    Your "Perplexed" personna causes me some amusement. However, on usenet, there often is enough
    confusion, without deliberately adding more.

    In this case the Peorian resident seems to have gone off on quite a tangent - and I see little point
    in pursuing them.

    What does evolution tell us about the origin of life?

    It tells us that there must have been a path from the first organisms to us.

    I think the historical details of the early part of that path have been pretty effectively obscured
    by the passage of time - and *possible* paths between practically *any* early organism and us are
    possible to imagine - so that this clue does not amount to a hill of beans.
    --
    __________
    |im |yler timtyler.orgtimtyler.org [email hidden] Remove lock to reply.

  9. [email hidden] (Jim Menegay) wrote in
    :"]news:[email hidden]:

    Quoted message said:

    "Malcolm" <[email hidden]> wrote in message
    news:<[email hidden]>...

    Quoted message said:

    "Jim Menegay" <[email hidden]> wrote in message

    Quoted message said:

    Using evolution, it is difficult to push back our understanding beyond this ancestor, but it
    cannot have appeared at a stroke.

    Quoted message said:

    Certainly it could not have appeared at a stroke! Therefore, evolution must have been in operation
    long before this complex common ancestor. Something much simpler "appeared at a stroke" and then
    evolved to the LCA. An evolving "RNA world" is a cliche today, and I suspect that there may have
    been other evolving entities before there were RNA sequences.

    Daniel Dennett, who is an "evolutionary philosopher" if there is such a thing, would agree with you
    ( as would others who think evolution only requires replicators).

    Quoted message said:

    What I don't understand is your assertion that it is difficult to push back our understanding
    beyond the LCA, *using evolution*. It is certainly true that it is impossible to push back our
    understanding using phylogenic inference. But an understanding of the processes of evolution must
    certainly be useful in pushing our understanding back - after all, it is evolution that provides
    the dynamics leading from the "stroke" to the LCA.

    Given your interest in studying the basics of biochemistry as they apply to evolution, I suspect you
    might also be interested in some of the work that attempts to explain the appearance of complexity
    as a general phenomenon of non-equilibrium systems. This work attempts to bridge the divide between
    chemistry and biology. Stuart Kauffman is a leading expert in the field, but the only book I have by
    him - "Investigations" - I have found rather impenetrable. Apparently his "Coming of Age in the
    Universe" is more readable, but I have heard that there are better introductions to this subject -
    unfortunately I can't remember any names.

    Yours,

    Bill Morse

  10. William Morse <[email hidden]> wrote or quoted:

    Quoted message said:

    [email hidden] (Jim Menegay) wrote in

    Quoted message said:

    "Malcolm" <[email hidden]> wrote in message

    Quoted message said:
    Quoted message said:
    Quoted message said:

    Using evolution, it is difficult to push back our understanding beyond this ancestor, but it
    cannot have appeared at a stroke.

    Certainly it could not have appeared at a stroke! Therefore, evolution must have been in
    operation long before this complex common ancestor. Something much simpler "appeared at a stroke"
    and then evolved to the LCA. An evolving "RNA world" is a cliche today, and I suspect that there
    may have been other evolving entities before there were RNA sequences.

    Daniel Dennett, who is an "evolutionary philosopher" if there is such a thing, would agree with
    you ( as would others who think evolution only requires replicators).

    As does practically everyone else.

    Few think RNA was the first genetic medium - since the associated biochemistry is so unlikely and
    fantastic.

    Quoted message said:

    Given your interest in studying the basics of biochemistry as they apply to evolution, I suspect
    you might also be interested in some of the work that attempts to explain the appearance of
    complexity as a general phenomenon of non-equilibrium systems. This work attempts to bridge the
    divide between chemistry and biology. Stuart Kauffman is a leading expert in the field, but the
    only book I have by him - "Investigations" - I have found rather impenetrable. Apparently his
    "Coming of Age in the Universe" is more readable [...]

    You mean "At Home in the Universe".
    --
    __________
    |im |yler timtyler.orgtimtyler.org [email hidden] Remove lock to reply.

  11. William Morse <[email hidden]> wrote in message news:<[email hidden]>...

    Quoted message said:

    Given your interest in studying the basics of biochemistry as they apply to evolution, I suspect
    you might also be interested in some of the work that attempts to explain the appearance of
    complexity as a general phenomenon of non-equilibrium systems. This work attempts to bridge the
    divide between chemistry and biology. Stuart Kauffman is a leading expert in the field, but the
    only book I have by him - "Investigations" - I have found rather impenetrable. Apparently his
    "Coming of Age in the Universe" is more readable, but I have heard that there are better
    introductions to this subject - unfortunately I can't remember any names.

    I've read some Kauffman. The two books you mention, particularly "Investigations", struck me
    as things that he turned out under a deadline from his publisher - part of a three book deal
    to cash in.

    Some of his earlier stuff had some substance, but not enough thermodynamic realism to suit me.
    Prigogene, on the other hand, has the thermodynamics, but not the information theory. Brooks and
    Wiley attempt both, but there are so many errors in their concept and in their details that it is
    impossible to take them seriously. I wish there were a good tutorial on this whole thing of
    information, thermodynamics, evolution, and systems theory that spelled out the foundations properly
    before going on to speculation about the possible applications. I haven't come across any thing like
    that yet. Though I noticed some recommendations on another thread recently.

  12. in article [email hidden], Jim Menegay at
    [email hidden] wrote on 12/19/03 8:43 AM:

    Quoted message said:

    William Morse <[email hidden]> wrote in message news:<[email hidden]>...

    Quoted message said:

    Given your interest in studying the basics of biochemistry as they apply to evolution, I suspect
    you might also be interested in some of the work that attempts to explain the appearance of
    complexity as a general phenomenon of non-equilibrium systems. This work attempts to bridge the
    divide between chemistry and biology. Stuart Kauffman is a leading expert in the field, but the
    only book I have by him - "Investigations" - I have found rather impenetrable. Apparently his
    "Coming of Age in the Universe" is more readable, but I have heard that there are better
    introductions to this subject - unfortunately I can't remember any names.

    I've read some Kauffman. The two books you mention, particularly "Investigations", struck me as
    things that he turned out under a deadline from his publisher - part of a three book deal to
    cash in.

    Some of his earlier stuff had some substance, but not enough thermodynamic realism to suit me.
    Prigogene, on the other hand, has the thermodynamics, but not the information theory. Brooks and
    Wiley attempt both, but there are so many errors in their concept and in their details that it is
    impossible to take them seriously. I wish there were a good tutorial on this whole thing of
    information, thermodynamics, evolution, and systems theory that spelled out the foundations
    properly before going on to speculation about the possible applications. I haven't come across any
    thing like that yet. Though I noticed some recommendations on another thread recently.

    You might want to take a look at a book called "Darwinism Evolving" by Depew and Weber.

    Cheers,

    Guy

  13. [email hidden] (Jim Menegay) wrote in
    :"]news:[email hidden]:

    Quoted message said:

    William Morse <[email hidden]> wrote in message news:<[email hidden]>...

    Quoted message said:

    Given your interest in studying the basics of biochemistry as they apply to evolution, I suspect
    you might also be interested in some of the work that attempts to explain the appearance of
    complexity as a general phenomenon of non-equilibrium systems. This work attempts to bridge the
    divide between chemistry and biology. Stuart Kauffman is a leading expert in the field, but the
    only book I have by him - "Investigations" - I have found rather impenetrable. Apparently his
    "Coming of Age in the Universe" is more readable, but I have heard that there are better
    introductions to this subject - unfortunately I can't remember any names.

    I've read some Kauffman. The two books you mention, particularly "Investigations", struck me as
    things that he turned out under a deadline from his publisher - part of a three book deal to
    cash in.

    Some of his earlier stuff had some substance, but not enough thermodynamic realism to suit me.
    Prigogene, on the other hand, has the thermodynamics, but not the information theory. Brooks and
    Wiley attempt both, but there are so many errors in their concept and in their details that it is
    impossible to take them seriously. I wish there were a good tutorial on this whole thing of
    information, thermodynamics, evolution, and systems theory that spelled out the foundations
    properly before going on to speculation about the possible applications. I haven't come across any
    thing like that yet. Though I noticed some recommendations on another thread recently.

    You seem to be ahead of me on this end of evolution. It is only recently that I realized I would
    have to be able to understand Boltzmann, Prigogene, and Shannon along with pid control if I was
    serious about figuring out how life started - and my ability to follow the details of the math stops
    right about at Maxwell. Unfortunately I have also not found the tutorial you are looking for. You
    may want to check out Howard Odum's " Environment, Power, and Society" for an early attempt at
    "consilience".I would think someone has done a similar synthesis recently, but I don't know of one.
    Wilson does a reasonably nice job of defining the benefits of consilience, but he doesn't fill in
    the details.

    Yours,

    Bill Morse

  14. Jim Menegay <[email hidden]> wrote or quoted:

    Quoted message said:

    Some of his earlier stuff had some substance, but not enough thermodynamic realism to suit me.
    Prigogene, on the other hand, has the thermodynamics, but not the information theory. Brooks and
    Wiley attempt both, but there are so many errors in their concept and in their details that it is
    impossible to take them seriously.

    Amazon has a review - which offers the following comments:

    ``As useless as the book cited above is the book 'Evolution as Entropy'by Brooks and Wiley. The
    basic proposition in this work is that speciation is controlled by the stochastic premises of the
    second law of thermodynamics. One may only regret that in the 43 years since the publication of
    Schrodinger's work [the book 'What is Life?'] a book has appeared whose authors do not understand
    the role of the second law of thermodynamics in living nature...the authors are concerned only with
    the amount of information and, hence, with entropy. But, by confining oneself to these concepts
    alone, one can hardly say anything about evolution...in the world of living things the quality or
    value of information is often of decisive importance...''

    - amazon.com0226075745
    --
    __________
    |im |yler timtyler.orgtimtyler.org [email hidden] Remove lock to reply.

  15. Tim Tyler <[email hidden]> wrote in message news:<[email hidden]>...

    Quoted message said:

    Jim Menegay <[email hidden]> wrote or quoted:

    Quoted message said:

    Some of his earlier stuff had some substance, but not enough thermodynamic realism to suit me.
    Prigogine, on the other hand, has the thermodynamics, but not the information theory. Brooks and
    Wiley attempt both, but there are so many errors in their concept and in their details that it
    is impossible to take them seriously.

    Amazon has a review - which offers the following comments:

    ``As useless as the book cited above is the book 'Evolution as Entropy'by Brooks and Wiley. The
    basic proposition in this work is that speciation is controlled by the stochastic premises of the
    second law of thermodynamics. One may only regret that in the 43 years since the publication of
    Schrodinger's work [the book 'What is Life?'] a book has appeared whose authors do not understand
    the role of the second law of thermodynamics in living nature...the authors are concerned only
    with the amount of information and, hence, with entropy. But, by confining oneself to these
    concepts alone, one can hardly say anything about evolution...in the world of living things the
    quality or value of information is often of decisive importance...''

    - amazon.com0226075745

    Ouch! And I thought *I* was being harsh. There is a kernel of truth in their ideas though - that
    evolution can be thought of as the accumulation of information. The completely silly thing about it
    is that they seem to think that since Shannon said "Information = Entropy", therefore the fact that
    information accumulates is a consequence of the 2nd Law.

    But they do attempt to apply "Evolution = Information Accumulation" to various non-Darwinian kinds
    of evolution (ecosystem evolution, for example) with occasionally provocative results.

  16. Guy Hoelzer <[email hidden]> wrote in message news:<[email hidden]>...

    Quoted message said:

    in article [email hidden], Jim Menegay at [email hidden] wrote on
    12/19/03 8:43 AM:

    Quoted message said:
    Quoted message said:

    I wish there were a good tutorial on this whole thing of information, thermodynamics, evolution,
    and systems theory that spelled out the foundations properly before going on to speculation
    about the possible applications. I haven't come across any thing like that yet. Though I noticed
    some recommendations on another thread recently.

    You might want to take a look at a book called "Darwinism Evolving" by Depew and Weber.

    Cheers,

    Guy

    The jacket blurb reported at Amazon makes it sound like it is not the tutorial I was looking for,
    but interesting nonetheless. Thx, Guy.

    I dug up the "recommendations on another thread" that I had mentioned. The request was:

    Quoted message said:

    Could anyone recommend me some readings on the topic of evolution as entropy (or as negentropy, I
    would think)? I think that the notion of complexity to explain evolution has been largely used by
    people such as Stuart Kauffman and Brian Goodwin, but I couldn't find references of writing
    referring to entropy.

    The request received 5 interesting responses.

    1. [moderator's note: Call me crazy, but how about Brooks and Wiley's book, "Evolution as Entropy"?
    (Univ. Chicago Press, 1988, I think). Worth a look, although my recollection is that it's
    extremely dense writing. - JAH]

    2. [Guy Holtzer] ... I would add "Darwinism Evolving" by Depew and Weber, and "Signs of Life" by
    Sole and Goodwin.

    3. [John Wilkins] Chaisson, Eric L. 2001. Cosmic evolution: The rise of complexity in nature.
    Cambridge MA: Harvard University Press. The entropy in B&W is Shannon entropy, or the
    informational entropy of a signal. The entropy in Chaisson is thermodynamic entropy. Personally,
    I prefer the latter account.

    4. [r_norman] Evolution is not ordinarily considered in the context of entropy except. That is why
    there are not "standard" works in this area. There are specific somewhat speculative treatises
    like the Brooks book already mentioned, as well as things like Weber, Bruce: ed. (1988) Entropy,
    Information, and Evolution, MIT Press, Cambridge. You should also look at works in information
    theory and complexity theory. Still, none of these areas are main-line evolution. They usually
    represent physicists or mathematicians attempts at developing some sort of synthetic theory
    applicable to evolution.

    and finally

    5. [TomHendricks474 who offers to email a collection of his own writings on heat cycles.]

    I don't know whether this confirms Edser or refutes him.

  17. Jim Menegay <[email hidden]> wrote or quoted:

    [Brooks and Wiley's book, Evolution as Entropy]

    Quoted message said:

    There is a kernel of truth in their ideas though - that evolution can be thought of as the
    accumulation of information. The completely silly thing about it is that they seem to think that
    since Shannon said "Information = Entropy", therefore the fact that information accumulates is a
    consequence of the 2nd Law. [...]

    The main link between evolution and thermodynamics which I have considered is the one that regards
    evoultion as a dissipative structure that maximises the level of energy degradation in a system.

    The idea asks much the same question that Richard Dawkins is famous for asking - namely:

    What is it that natural systems are best though of as optimising?

    Dawkins pinned the blame on gene frequencies - but this idea identifies a "gross" thermodynamic
    concept as the agent responsible - and claims that the action of living systems on an ecosystem is
    to dissipate and degrade energy and maximise entropy.

    The idea has been floating around for a long while now. I was first alerted to it by:

    "Life as a Manifestation of the Second Law of Thermodynamics" - Schneider,
    E.D, Kay, J.J., 1994, Mathematical and Computer Modelling, Vol 19, No. 6-8, pp.25-48. [link in
    references on site below]

    I have my own expression of the idea - at:

    originoflife.netbright light
    --
    __________
    |im |yler timtyler.orgtimtyler.org [email hidden] Remove lock to reply.

  18. Tim Tyler <[email hidden]> wrote in message news:<[email hidden]>...

    Quoted message said:

    Jim Menegay <[email hidden]> wrote or quoted:

    [Brooks and Wiley's book, Evolution as Entropy]

    Quoted message said:

    There is a kernel of truth in their ideas though - that evolution can be thought of as the
    accumulation of information. The completely silly thing about it is that they seem to think that
    since Shannon said "Information = Entropy", therefore the fact that information accumulates is a
    consequence of the 2nd Law. [...]

    The main link between evolution and thermodynamics which I have considered is the one that regards
    evoultion as a dissipative structure that maximises the level of energy degradation in a system.

    The idea asks much the same question that Richard Dawkins is famous for asking - namely:

    What is it that natural systems are best though of as optimising?

    Dawkins pinned the blame on gene frequencies - but this idea identifies a "gross" thermodynamic
    concept as the agent responsible - and claims that the action of living systems on an ecosystem is
    to dissipate and degrade energy and maximise entropy.

    The idea has been floating around for a long while now. I was first alerted to it by:

    "Life as a Manifestation of the Second Law of Thermodynamics" - Schneider,
    E.D, Kay, J.J., 1994, Mathematical and Computer Modelling, Vol 19, No. 6-8, pp.25-48. [link in
    references on site below]

    I have my own expression of the idea - at:

    originoflife.netbright light

    The thing is, though, that Prigogine's "dissipative structures" are claimed to *minimize* the
    generation of entropy, at least as measured per unit volume. Your ecosystems are claimed to
    *maximize* entropy generation. No one that I have read has ever reconciled these ideas to my
    satisfaction.

    One idea might be that life is economical in its dissipation of neg-entropy locally (K-selection?),
    but that it tends to increase the volume of the dissipative structure (r-selection?). I just wish
    that someone would tie together all of these ideas that are floating around out there into some kind
    of explanatory framework!

    Jim

  19. << Natural selection is relevant to practically every aspect of life - *except* its origin. >>

    Then there is no such thing as 'chemical selection'?

  20. TomHendricks474 <[email hidden]> wrote or quoted me as saying:

    Quoted message said:

    << Natural selection is relevant to practically every aspect of life - *except* its origin. >>

    Quoted message said:

    Then there is no such thing as 'chemical selection'?

    "Chemical selection" appears to be a pretty useless term.

    It seems to refer to a lot of nonsense about chemicals groping towards life without having any
    system of inheritance.

    Either there's a system of inheritance - (in which case the thing is alive - and "chemicals" seems a
    bit disparaging, since the evolution is biological in nature) - or there isn't - in which case,
    selection has no heritable variation to work on.

    Some of the autocatalytic set folk use the term in what I suppose is a borderline-acceptable manner
    - to refer to simple organisms before any advanced biological molecules or a template replication
    system existed. They use it to refer to living, evolving organisms - *after* life's origin.
    --
    __________
    |im |yler timtyler.orgtimtyler.org [email hidden] Remove lock to reply.

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