Essay Abstract

Abstract In contrast to conceptual systems, the notion of information bounds for physical systems is questioned. Several related assumptions are challenged: that there is a bottom to the complexity of nature, that physical reality can be exhaustively modeled, and that physical systems contain definite entropy or information.

Author Bio

Dan Bruiger is an independent researcher living in British Columbia, currently working on a new book, 'The Made and the Found', about the scientific modeling of nature. He studied at UCLA and UC Berkeley. Previous publications include 'Second Nature: the man-made world of idealism, technology and power' (2006) and an entry in the previous fqxi contest, 'Is Reality Reducible to Thought?'

Download Essay PDF File

  • [deleted]

Dear Dan,

Thank you for an extremely interesting and thought-provoking essay! I'll need to read your paper at least another time or two before thinking that I've got my head around your intended message.

A couple of thoughts kept bouncing around in my head as I read your essay. James Gleick, in his recent book, 'The Information,' wrote, "The universe computes its own destiny." A similar notion is discussed in an interesting paper, 'The Computing Spacetime,' by Fotini Markopoulou ( http://arxiv.org/abs/1201.3398 ), where she writes in her introduction, "That the Universe can be thought of as a giant computation is a straightforward corollary of the existence of a universal Turing machine. . . .That is, a universal quantum computer can simulate every physical entity and its behavior." Could you please comment on on how these views square with your thinking, or not?

Elsewhere, you quote Bekenstein, echoing Jaynes, as saying "There could be more levels of structure in our universe than are dreamt of in today's physics. . . ." The parallel between this construction and Shakespeare's well-known "There are more things in heaven and earth, Horatio, than are dreamt of in your philosopy" can hardly be coincidental. A nice touch!

Thanks again, and good luck in the competition.

jcns

    Dear JCNS,

    Thanks for reading my paper and for your appreciation. On your advisement, I read Fotini Markopoulou's paper. I do not pretend to understand quantum graphity, but she herself does not commit to an information ontology, but simply considers it a useful theoretical approach. It seems true that 'information' can provide a "neutral" working ground between quantum and classical concepts, just as it can between such divergent categories as 'mind' and 'matter' in attempts to solve the mind-body problem or to understand the functioning of neural processes. In that instance, we know that these processes, which resemble computation in some respects, lead somehow to the perception of space and a real external world. So there is a precedent for a relation between computation (or purely logical processes) and physical reality (or at least geometry). Like her, however, I do not subscribe to the 'it-from-bit' concept. I cannot say anything about quantum graphity except that her exposition (sec 3.1) begins: "Let us assume a universe consisting of N fundamental constituents...", which is already assuming a discrete ontology that favours the quantum side more than the continuity of general relativity. That is exactly the kind of assumption that my paper questions. On the positive side, to me the most interesting conclusion of her paper (at the very end) regards self-organized criticality: "One may think that this should be the most promising direction, however, such ideas have hardly been explored. To a great extent, there is a serious technical obstacle. SOC is typically observed in non-equilibrium systems, while all of fundamental physics uses equilibrium quantum field theory. Properly introducing SOC ideas in cosmology requires a departure from the standard framework." In particular, it requires a less passive view of matter.

    thanks,

    Dan

    • [deleted]

    Dear Researcher Bruiger,

    I found your essay to be one of the most beautifully written meticulously cogent articles about the nature of information absolutely engrossing. I was puzzled by your assertion: "Two objects are qualitatively identical if they share all their state-independent properties (that is, if they share a common definition): they are numerically identical if they share their state-dependent properties as well[2]. As I have somewhat clumsily pointed out in my essay Sequence Consequence, although there is a numbing amount of similarity in the Universe, there is no possibility of any identical states real or imagined ever existing.

      • [deleted]

      Very interesting catching text.I wish good luck to Author.

      Hi, Joe

      Thanks for your appreciation. I agree with you that, strictly speaking, there should be no two identical real states. Things can be equal by definition, however--e.g. units of a measure. The statement that things can be 'numerically identical' just means that there are not really two things. I'll have a look at your article.

      thanks,

      Dan

      • [deleted]

      Dan,

      A very readable and clear exposition on many of the basic assumptions and prejudices manifesting in the discipline of physics. Unfortunately it expresses the effective reasons it won't win the contest, as belief systems naturally promote advocates and demote skeptics. While it has certainly been brave of FQXi to ask such a contest question as this one, the judging of previous contests has been fairly conservative. That said, there are a number of similar efforts to seriously upend the apple cart and not just patch the more apparent holes. It will be interesting to see whether a serious paradigm shift is considered, or if the results conform to current models.

      The point I raise in my essaythat our sense of time as a progression from past to future events, which physics re-enforces by treating it as a measurement, is actually a subjective perception of the changing configuration of what is, turning future potential into past circumstance, leads to a number of observations that relate to various of your points. Such as information being the configuration of energy. Thus while energy goes from prior to succeeding configurations, the resulting information is necessarily being created and destroyed, since the amount of energy is conserved. There being no blocktime conservation of information.

      Entropy only applies to a closed system and if time is an effect of action, rather than the geometric cause, than space has no dynamic properties, thus cannot be bounded, bent, etc. and therefore is an infinite equilibrium state. So there is no ultimate closed system and energy is simply traded around. What is radiated away and ejected by collapsing systems, is absorbed by expanding ones.

      As for determinism, all the processes effecting a system may well be deterministic, but if the input into that system cannot be defined, it is non-deterministic. With time as emergent effect, it is the collapse of future probabilities, which yields current actualities. The cat is not both dead and alive, because we are not traveling some vector from a determined past into a probabilistic future. It is the actual, physical course of events which determines the fate of the cat. To wit, the earth doesn't travel the fourth dimension from yesterday to tomorrow, tomorrow becomes yesterday because the earth rotates. We cannot know all input into any situation prior to its occurrence, since that would require signaling faster than the input is traveling. It is a non-linear reality out there.

      Good luck in the contest and hopefully some non-belief based science can come of all this.

        • [deleted]

        As once told famous neurologist Warren McCulloch :Greatest puzzle in the world is what is the same?

        Dear Dan Bruiger,

        I believe and certainly hope that you have a winner here! I began my comment by planning to quote certain things you said, but the comment began to be pages long! My first essay also focused on "the imagined causal power of law" as a religious hold-over and the evident self-organizing power of nature as a more 'faithful' interpretation, leading, as you suggest, even to the possibility of the self-evolution of fine-tuning. I think you might like to read that earlier essay. I certainly plan to read your earlier FQXi essay!

        I could not have written your essay nearly as well as you, nevertheless you reflect my thinking on almost every point you touch, and certainly on information, entropy, holography holes, etc. Thank you. I plan to quote you in the future and hope you keep writing. I am very interested in reading more of your well-written words.

        Your claim that "no aspect of nature is completely reducible to specified information or to any formalization whatsoever" exposes reductionism as a metaphysical pseudo-religious belief system based on largely simplistic cartoon-like abstractions from the natural world. I hope your essay is widely read. It seems ideally suited for a Scientific American article.

        Your observation that "the idealist thread in science views matter as a mere abstraction" and "it is circular reasoning to assume that the being or behavior of a *natural* thing is exhausted in a human definition, design, or a formulation that has been abstracted from it in the first place" seem to be becoming more widely understood. It's about time.

        Since you also go into some detail about quantum theory, I invite you to read my current essay, The Nature of the Wave Function, which seeks to establish the connection between the local "real" (but "non-deterministic") physical wave and the abstract (but statistically useful) probability amplitude. I think my approach is completely consistent with yours.

        I am tempted to begin quoting your many wonderful observations about the nature of information, but I will stop here and simply urge all readers to study your essay.

        Best of luck in the contest and in life.

        Edwin Eugene Klingman

          • [deleted]

          "What is the same information?" is the modern version of oldest problem starting from Plato question: What makes beautiful things "beautiful". Problem of universals is an ancient problem in metaphysics. Bertrand Russel wrote that all Western philosophy is the comment to Plato.

          In My Humble Opinion Plato's question is tautological question and according to Wittgenstein does havn't sense.

          • [deleted]

          Dear Dan Bruiger,

          I really enjoyed your essay. It is very clearly written and well argued. It also contains a lot of food for thought.

          The overall feeling I get is that you are saying it is impossible to absolutely capture nature. I don't think I can disagree with that. I am not sure though, that there has been the intention to do that. Science developed from early attempts to understand the world by observing it. Those observations were described or recorded, such as in the many beautiful drawings of early naturalists. I am sure they never confused their drawings with the plants or animals themselves, though they strove to make their illustrations as accurate as possible.

          Similarly in the other sciences, models were made as illustrations and tools for calculations but I do not know that the majority of those scientists thought their models to be what was represented, rather than -a means- to make sense of the external reality. Richard Feynman explains, in his lecture series at Auckland University (available via FQXi resources), that quantum calculations are extremely accurate in corresponding with experimental results but why that is so is not known. -There has been an attitude that why it works does not really matter. That how this relates to nature is just unnecessary esoteric "icing on the cake"; that we would like to have but can do without. So the usefulness of a model or technique can be something quite different from how realistic. Bohr's model of the atom is another great example. That doesn't mean that scientists should not strive to find the -very best representations- in terms of similarity to nature -and- useful functionality.

          Yours is one of several essays in the competition arguing for self organisation of the universe. I think you might find George Ellis' essay really interesting.He is arguing for top down organisation rather than a universe built exclusively from the bottom up as reductionists would have it.

          You have written a really interesting an accessible essay, which is also very relevant to the competition question. Well done. Good luck in the competition.

            Dan,

            Thank you for an excellent essay which is both absorbing and accessible. I was especially pleased to read lines like "Mass then becomes like other macroscopic

            thermodynamic variables, such as temperature and pressure, which disregard microstates". I have exactly the same problem with the assumed isotropy of 'mass' and the disregard for it's structure with relation to it's gravitational effect. I have made a discovery which shows how non-isotropic matter can explain the Ice Age conundrum in a problematic-free way which is superior to the Milankovitch sunlight-only models. I'd appreciate it if you would take a look: Newtons Isotropy and Equivalence Is Simplicity That Has Led to Modern Day *Mass* Misconceptions of Reality

            • [deleted]

            "While an organism may need to model its environment, encoding it economically in its brain or elsewhere, there is no reason to think that physical reality at large registers or processes information, or has any need to encode or represent aspects of itself. Information is encoded, registered, or processed by intentional agents."

            You need to account for the presence of isomorphisms, isomorphic structuration, in inorganic nature -- near-perfect parallels for which no causal connection can be demonstrated. A dramatic example is wave mechanics, both quantum and hydraulic. You can simulate the quantum double-slit in a pond of water. It's a stretch to deny the presence of purely informational content in that situation. Or not?

            The Feynman Double Slit

            Dear nmann,

            Wave interference is the historical metaphor to explain the 2-slit behavior, so it seems odd to speak of water waves "simulating" quantum waves. Obviously there is a resemblance, but whether that is strictly isomorphic is the question. I'm not sure what this has to do with "purely informational content". In general, I would say that isomorphism is not a property of physical reality per se, but of our metaphors and models. That is, two models can be isomorphic by definition, but whether any model is isomorphic to the reality it is supposed to model is always questionable.

            Dan

            Dear John

            I am intrigued by your comparison of time to temperature--very suggestive. I think of time as what goes on outside a defined system (background changes). We measure time with the specific reference of some cyclical process, but I have always wondered about the meaning of statements about the early history of the universe, before there were bound electrons, for example. Any thoughts about this?

            Dan

            Dear Edwin,

            Thanks for your accolade. It's nice to touch base with you again. As always I am awed by the expertise of your presentation, way over my head! Best of luck to you in the contest, and in all things.

            Dan

            Dear Georgina,

            Thanks for the praise and for the heads up to read Ellis' essay. While I appreciate the "self-organization" aspect of his thesis, many of the examples he uses for modelling "top-down causation" come from computation. To me this appears as support for my claim that models are often confused with the reality they model.

            Thanks also for the analogy of naturalist's drawings. I imagine the importance placed on those drawings within early science reacted to the prior medieval practice of dealing only with manuscripts rather than direct observation. What I am saying is that there is still such a tendency, what I call the "idealist thread" within modern science.

            Best wishes,

            Dan

            Dear Dan,

            You ask John for thoughts on 'time' in the universe before cyclical processes occurred. I address this in my last FQXi essay, along with the concept of a self-evolving universe as opposed to one "obeying laws".

            The basic equation implied by such a universe, beginning with ONE field and evolving, is described on page one and the analysis follows on page two: In 1953 Eugenio Calabi essentially asked if our Master equation was valid: "Could there be gravity ... even if space is a vacuum totally devoid of matter?" He reasoned: "...being non-linear, gravity can interact with itself and in the process create mass", and he conjectured, "curvature makes gravity without matter possible". The Calabi-Yau manifold confirms our Master equation--based only on gravity--but his conjecture was based on special geometry in which "time is frozen". Meaning what? Newton's equation is time independent, but ... our Master field equation is seen to be scale invariant and Nottale has shown that the laws of scale can actually take the place of the laws of motion: that is, scale invariance implies motion invariance.

            If scale invariant is motion invariant, time has no obvious meaning. But action orthogonal to a radial field vector can produce a vortex or cyclical phenomenon in a region of space, introducing duration or cycle time. So time appears when the G-field symmetry breaks and local oscillations, i.e. natural clocks, occur."

            This cyclical field is of course the same C-field that my current essay analyzes as the basis of the physical wave function. There is of course more, and I draw conclusions based on the above, but I just wanted to say that I believe your question is a valid one, and share my take on it with you.

            Edwin Eugene Klingman

            • [deleted]

            A great theoretical biologist, Howard Pattee (still with us) asks the question: "How do molecules become messages in cells?" Because DNA-RNA clearly carries information while at the same time being observable only as a process of physical chemistry. So what makes life, or any autopoietic process, different from an advanced inorganic process like, say, crystal growth? Until you answer that question, and do so in convincing detail, you can rule out no possibility, even including panpsychism.

            To say that something is not "a property of physical reality per se, but of our metaphors and models" is, however true, unhelpful if your goal is to do science. I say that as a sincere Bohrian. Here's a paper by a couple of neo-Copenhagenites, one of whom is on record as not liking to call the moon "the moon" because it ascribes properties to the whatever-it-is-up-there which are doubtless inaccurate and misleading; it's epistemologically and ontologically as well as scientifically sophisticated stuff:

            Quantum Physics as a Science of Information

              Dan, forgive me for jumping into your thread, but you keep generating interesting questions.

              nmann asks: "How do molecules become messages in cells?" Because DNA-RNA clearly carries information while at the same time being observable only as a process of physical chemistry."

              In my opinion, all information is contextual, and is not even information *unless* there is a codebook. In the case of RNA/DNA clearly the cell is the codebook and there is no meaning at all to RNA/DNA structure without the cell (or without conscious beings based on cells). The best way to understand information (again, in my opinion) is as process or event or processed structure that literally "IN-FORMs" or induces 'In'-'form'ation in some other structure, typically the brain, but, as noted, also in cells.

              "Until you answer that question, and do so in convincing detail, you can rule out no possibility, even including panpsychism." Who's ruling out panpychism? Or an analogous interpretation of awareness.

              Edwin Eugene Klingman