Re: [Fis] A provocative issue
Shannon declared in his original book that constraints are information. I don’t get the distinction you are trying to make. Also, Shannon information applies to continuous systems. If they have a form (are constrained), then they have finite information. Infinite information applies only if there are no constraints. I don’t see how that could be true in a world that has regularities. John Collier Emeritus Professor and Senior Research Associate Philosophy, University of KwaZulu-Natal http://web.ncf.ca/collier From: Fis [mailto:fis-boun...@listas.unizar.es] On Behalf Of Bob Logan Sent: Sunday, 11 December 2016 10:21 PM To: tozziart...@libero.it Cc: fisSubject: Re: [Fis] A provocative issue Bravo Arturo - I totally agree - in a paper I co-authored with Stuart Kauffman and others we talked abut the relativity of information and the fact that information is not an absolute. Here is the abstract of the paper and an excerpt from the paper that discusses the relativity of information. The full papers available at: https://www.academia.edu/783503/Propagating_organization_an_enquiry Best wishes - Bob Logan Kauffman, Stuart, Robert K. Logan, Robert Este, Randy Goebel, David Hobill and Ilya Smulevich. 2007. Propagating Organization: An Inquiry. Biology and Philosophy 23: 27-45. Propagating Organization: An Enquiry - Stuart Kauffman, Robert K. Logan, Robert Este, Randy Goebel, David Hobill and lIlya Shmulevich Institute for Systems Biology, Seattle Washington Abstract: Our aim in this article is to attempt to discuss propagating organization of process, a poorly articulated union of matter, energy, work, constraints and that vexed concept, “information”, which unite in far from equilibrium living physical systems. Our hope is to stimulate discussions by philosophers of biology and biologists to further clarify the concepts we discuss here. We place our discussion in the broad context of a “general biology”, properties that might well be found in life anywhere in the cosmos, freed from the specific examples of terrestrial life after 3.8 billion years of evolution. By placing the discussion in this wider, if still hypothetical, context, we also try to place in context some of the extant discussion of information as intimately related to DNA, RNA and protein transcription and translation processes. While characteristic of current terrestrial life, there are no compelling grounds to suppose the same mechanisms would be involved in any life form able to evolve by heritable variation and natural selection. In turn, this allows us to discuss at least briefly, the focus of much of the philosophy of biology on population genetics, which, of course, assumes DNA, RNA, proteins, and other features of terrestrial life. Presumably, evolution by natural selection – and perhaps self-organization - could occur on many worlds via different causal mechanisms. Here we seek a non-reductionist explanation for the synthesis, accumulation, and propagation of information, work, and constraint, which we hope will provide some insight into both the biotic and abiotic universe, in terms of both molecular self reproduction and the basic work energy cycle where work is the constrained release of energy into a few degrees of freedom. The typical requirement for work itself is to construct those very constraints on the release of energy that then constitute further work. Information creation, we argue, arises in two ways: first information as natural selection assembling the very constraints on the release of energy that then constitutes work and the propagation of organization. Second, information in a more extended sense is “semiotic”, that is about the world or internal state of the organism and requires appropriate response. The idea is to combine ideas from biology, physics, and computer science, to formulate explanatory hypotheses on how information can be captured and rendered in the expected physical manifestation, which can then participate in the propagation of the organization of process in the expected biological work cycles to create the diversity in our observable biosphere. Our conclusions, to date, of this enquiry suggest a foundation which views information as the construction of constraints, which, in their physical manifestation, partially underlie the processes of evolution to dynamically determine the fitness of organisms within the context of a biotic universe. Section 4. The Relativity of Information In Sections 2 we have argued that the Shannon conception of information are not directly suited to describe the information of autonomous agents that propagate their organization. In Section 3 we have defined a new form of information, instructional or biotic information as the constraints that direct the flow of free energy to do work. The reader may legitimately ask the question “isn’t information just
Re: [Fis] A provocative issue
Arturo, List: This is a view that was fairly common, especially associated with Edwin Jaynes, but the other view has also been put forward by people like Brillouin and, more recently, John Wheeler, Murray Gell-Mann and Seth Lloyd, for example. Cosmologist David Layzer is another example. Interesting that they are all physicists. My PhD student, Scott Muller, published a book based on his dissertation, Asymmetry: The Foundation of Information, (Springer 2007) that uses Jaynes’ notion of an IGUS together with group theory to define the amount of information in an object (I have a different way of doing that). Jaynes held that each IGUS had its own measure of information in something, and there was no common measure. Scott argued that you can combine the information measured by all possible IGUSs (sort of like observers or interactors, but more strictly defined) to get the information in the object. I define it as the minimal number of yes-no questions required to completely describe the thing. The two should be equivalent. So you are siding with Jaynes, I think. I think Scott nailed the idea of objective intrinsic information on solid ground. By the way, Shannon’s measure is of the information capacity of a channel. There are better ways to define the information in a real situation (e.g., the computational notion of information), but Shannon’s approach can be adapted to give the same result with some relatively intuitive assumptions. John Collier Emeritus Professor and Senior Research Associate Philosophy, University of KwaZulu-Natal http://web.ncf.ca/collier From: Fis [mailto:fis-boun...@listas.unizar.es] On Behalf Of tozziart...@libero.it Sent: Sunday, 11 December 2016 5:57 PM To: fis@listas.unizar.es Subject: [Fis] A provocative issue Dear FISers, I know that some of you are going to kill me, but there’s something that I must confess. I notice, from the nice issued raised by Francesco Rizzo, Joseph Brenner, John Collier, that the main concerns are always energetic/informational arguments and accounts. Indeed, the current tenets state that all is information, information being a real quantity that can be measured through informational entropies. But… I ask to myself, is such a tenet true? When I cook the pasta, I realize that, by my point of view, the cooked pasta encompasses more information than the not-cooked one, because it acquires the role of something that I can eat in order to increase my possibility to preserve myself in the hostile environment that wants to destroy me. However, by the point of view of the bug who eats the non-cooked pasta, my cooked pasta displays less information for sure. Therefore, information is a very subjective measure that, apart from its relationship with the observer, does not mean very much… Who can state that an event or a fact displays more information than another one? And, please, do not counteract that information is a quantifiable, objective reality, because it can be measured through informational entropy… Informational entropy, in its original Shannon’s formulation, stands for an ergodic process (page 8 of the original 1948 Shannon’s seminal paper), i.e.: every sequence produced by the processes is the same in statistical properties, or, in other words, a traveling particle always crosses all the points of its phase space. However, in physics and biology, the facts and events are never ergodic. Statistical homogeneity is just a fiction, if we evaluate the world around us and our brain/mind. Therefore, the role of information could not be as fundamental as currently believed. P.S.: topology analyzes information by another point of view, but it’s an issue for the next time, I think… Arturo Tozzi AA Professor Physics, University North Texas Pediatrician ASL Na2Nord, Italy Comput Intell Lab, University Manitoba http://arturotozzi.webnode.it/ ___ Fis mailing list Fis@listas.unizar.es http://listas.unizar.es/cgi-bin/mailman/listinfo/fis
Re: [Fis] A provocative issue
Bravo Arturo - I totally agree - in a paper I co-authored with Stuart Kauffman and others we talked abut the relativity of information and the fact that information is not an absolute. Here is the abstract of the paper and an excerpt from the paper that discusses the relativity of information. The full papers available at: https://www.academia.edu/783503/Propagating_organization_an_enquiry Best wishes - Bob Logan Kauffman, Stuart, Robert K. Logan, Robert Este, Randy Goebel, David Hobill and Ilya Smulevich. 2007. Propagating Organization: An Inquiry. Biology and Philosophy 23: 27-45. Propagating Organization: An Enquiry - Stuart Kauffman, Robert K. Logan, Robert Este, Randy Goebel, David Hobill and lIlya Shmulevich Institute for Systems Biology, Seattle Washington Abstract: Our aim in this article is to attempt to discuss propagating organization of process, a poorly articulated union of matter, energy, work, constraints and that vexed concept, “information”, which unite in far from equilibrium living physical systems. Our hope is to stimulate discussions by philosophers of biology and biologists to further clarify the concepts we discuss here. We place our discussion in the broad context of a “general biology”, properties that might well be found in life anywhere in the cosmos, freed from the specific examples of terrestrial life after 3.8 billion years of evolution. By placing the discussion in this wider, if still hypothetical, context, we also try to place in context some of the extant discussion of information as intimately related to DNA, RNA and protein transcription and translation processes. While characteristic of current terrestrial life, there are no compelling grounds to suppose the same mechanisms would be involved in any life form able to evolve by heritable variation and natural selection. In turn, this allows us to discuss at least briefly, the focus of much of the philosophy of biology on population genetics, which, of course, assumes DNA, RNA, proteins, and other features of terrestrial life. Presumably, evolution by natural selection – and perhaps self-organization - could occur on many worlds via different causal mechanisms. Here we seek a non-reductionist explanation for the synthesis, accumulation, and propagation of information, work, and constraint, which we hope will provide some insight into both the biotic and abiotic universe, in terms of both molecular self reproduction and the basic work energy cycle where work is the constrained release of energy into a few degrees of freedom. The typical requirement for work itself is to construct those very constraints on the release of energy that then constitute further work. Information creation, we argue, arises in two ways: first information as natural selection assembling the very constraints on the release of energy that then constitutes work and the propagation of organization. Second, information in a more extended sense is “semiotic”, that is about the world or internal state of the organism and requires appropriate response. The idea is to combine ideas from biology, physics, and computer science, to formulate explanatory hypotheses on how information can be captured and rendered in the expected physical manifestation, which can then participate in the propagation of the organization of process in the expected biological work cycles to create the diversity in our observable biosphere. Our conclusions, to date, of this enquiry suggest a foundation which views information as the construction of constraints, which, in their physical manifestation, partially underlie the processes of evolution to dynamically determine the fitness of organisms within the context of a biotic universe. Section 4. The Relativity of Information In Sections 2 we have argued that the Shannon conception of information are not directly suited to describe the information of autonomous agents that propagate their organization. In Section 3 we have defined a new form of information, instructional or biotic information as the constraints that direct the flow of free energy to do work. The reader may legitimately ask the question “isn’t information just information?”, i.e., an invariant like the speed of light. Our response to this question is no, and to then clarify what seems arbitrary about the definition of information. Instructional or biotic information is a useful definition for biotic systems just as Shannon information was useful for telecommunication channel engineering, and Kolmogorov (Shiryayev 1993) information was useful for the study of information compression with respect to Turing machines. The definition of information is relative and depends on the context in which it is to be considered. There appears to be no such thing as absolute information that is an invariant that applies to all circumstances. Just as Shannon defined information
[Fis] Brenner and Lupasco logic. Emergent Simplicity
Dear Arturo, Thank you for your encouraging comment. Please see responses in blue. You wrote: “as every kind of logic (…including maths, to be honest…) is based on axioms that stand just for who believe they are true. I give you an example, by examining Luparsco’s postulates. http://apcz.pl/czasopisma/index.php/LLP/article/viewFile/LLP.2010.009/967 "The key postulate, as formulated by Lupasco, is that every real phenomenon, element or event e is always associated with an anti-phenomenon, anti-element or anti-event non-e, such that the actualization of e entails the potentialization of non-e and vice versa, alternatively, without either ever disappearing completely. The logic is a logic of an included middle, consisting of axioms and rules of inference for determining the state of the three dynamic elements involved in a phenomenon (“dynamic” in the physical sense, related to real rather than to formal change, e.g. of conclusions). 4.2. Axioms The three fundamental axioms of classical logic, in one version, are the following: 1. The axiom of identity: A is (or =) A. 2. The axiom of non-contradiction: A is not (or 6=) non-A. 3. The axiom of the excluded middle: there exists no third term ‘T’ (‘T’ from third) that is at the same time A and non-A. Based on his “antagonistic” worldview, according to Basarab Nicolescu (see Nicolescu 1996), Lupasco “rewrote” the three major axioms of classical logic as follows: 1. (Physical) Non-Identity: There is no A at a given time that is identical to A at another time. 2. Conditional Contradiction: A and non-A both exist at the same time, but only in the sense that when A is actual, non-A is potential, reciprocally and alternatively, but never to the limit of 100%. 3. Included Middle: An included or additional third element or T-state (‘T’ for ‘tiers inclus’, included third). The evolution of real processes is therefore asymptotically toward a non-contradiction of identity or diversity, or toward contradiction. The mid-point of semi-actualization and semi-potentialization of both is a point of maximum contradiction, a “T-state” resolving the contradiction (or “counter-action”) at a higher level of reality or complexity. Lupasco deserves the historical credit for having shown that a logic of the included middle is a valid multivalent logic, with the indicated terms. At a single level of reality, the second and third axioms are essentially equivalent. In Nicolescu’s extension of the logic, the T-state emerges from the point of maximum contradiction at which A and non-A are equally actualized and potentialized, but at a higher level of reality or complexity, at which the contradiction is resolved. His paradigm example is the unification in the quanton (T) of the apparently contradictory elements of particle (A) and wave (non-A). In contrast to the Hegelian triad, the three terms here coexist at the same moment of time. The logic of the included middle does not abolish that of the excluded middle, which remains valid for simple, consistent situations. However, the former is the privileged logic of complexity, of the real mental, social and political world. The logic of the included middle is capable of describing the coherence between levels of reality. A given T-state (which operates the unification of A and non-A) is associated with another couple of contradictory terms at its higher level (A^1, non-A^1), which are in turn resolved at another level by T^1. According to Nicolescu, the action of the logic of the included middle induces an open structure of the set of all possible levels of reality, similar to that defined by Gödel for formal systems" Lupasco’s “linguistic joke” (forgive me this expression, but, in this context, is something positive, not negative!) is very intriguing and well done, but the problem is always the same, as every kind of logic (…including maths, to be honest…) is based on axioms that stand just for who believe they are true. I give you an example, by examining Luparsco’s postulates. 1. (Physical) Non-Identity: There is no A at a given time that is identical to A at another time. It is not true: an atom of hydrogen today is identical to an atom of hydrogen tomorrow. I would also say that a square is always a square, or in my mind a centaur is always a centaur, but I suppose that you are talking in a physical, not mathematical or psychological sense, therefore I prefer the example of the atom. And do not say that the hydrogen atoms of today and of tomorrow are two different atoms, because, according the definition of hydrogen atom, I cannot distinguish the one from the other! 2. Conditional Contradiction: A and non-A both exist at the same time, but only in the sense that when A is actual, non-A is potential, reciprocally and alternatively, but never to the limit of 100%. Actual and potential reminds too much the