Essay Abstract

The four key attributes of a fundamental explanatory structure are: irreducibility, generality, commensurability, and fertility. Because reductionism ultimately fails as an explanation of all things, a mutually commensurable set of fundamental ideas is required, as opposed to a single fundamental Theory of Everything. However, the unity of science is insured by the commensurable interrelationships between these fundamental (and thus irreducible) explanatory structures.

Author Bio

Gregory Derry is a Professor of Physics at Loyola University Maryland, with a Ph.D. from Pennsylvania State University and a B.S. from Union College. His research interests are in ultrahigh vacuum surface physics, nonlinear dynamics in physiological systems, and epistemological questions in science/religion issues. He has published two books in addition to his scientific research articles.

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Hi Gregory,

Nice essay but you may need to reconsider your position. You say you do not believe that the reductionist verson of a theory of everything is possible and that you favor an emergent theory.

I would urge you to consider reading my essay "The Day after the Nightmare Scenario" It is an introduction to a theory of everything that is BOTH reductionist AND emergent. It starts with the fundamental ingredients - one being the component building block ingredient and the other the energy associated with their initial alignmet. This starting point leads to an inevitable progression of events as everything emerges through a hierarchy of energy creating the particles that exist in spacetime.

All the best to you

Scott S Gordon, MD

    Professor Derry,

    I think your original Community Rating was closer to the mark. jrc

      Hi Gregory, I like your essay very much. I like that you considered the question before taking a particular approach to answering it. I had not thought of explanatory structure as fundamental. You are absolutely correct that it is explanatory structures that are fundamental to our understanding. I think your arguments are very well set out and the essay very readable.

      You thew down a gaunlet - I'm not sure what to make of the challenge. It seems to me that studying emergent phneomena and using reductionist approaches are both valid ways of investigating how the universe is and is functioning. That there is emergence is fact. While the shell of a bird's egg can be explained by reductionism as a arragement of calcium carbonate atoms, the how its shape was formed requires the functioning repoductive anatomy of the bird. It seems that for a more complete understanding of nature both are needed. Yet also for happening in space, such as the laying of eggs, and for agency of the bird, rather than just existence (in spacetime), a struture of the universe with open future and seqenetial passage of time is needed too (in my opinion).

      Whether the minutiae, or the organisation or complexity, or the way the universe functions is more fundamental depends upon that question of what we mean by fundamental. Fundamental to our human understanding or fundamental to the function of the universe. You have focused on the former and I have focused on the latter.

      The chemical clock is interesting . I have taken a look at Belousov-Zhabotinsky reaction. I think from a quick search that name order is conventional. Its a problem I will enjoy thinking about. I like that you have set out those characteristics an overarching explanatory structure should have. I also agree very much with your point about interdisciplinary science. There is such a lot that I like I can't list it all.

      Ended on an optimistic note was nice. The explanatory framework once established is settled, until it is found wanting and superseded. Whereas the study of nature is not, there is so much to explore and re-explore. Emergence offers opportunity. Another undervalued but important opportunity is evaluation of science. There is a vast amount of dead wood ( or possibly prune-worthy), that has accumulated over the decades of investigation.

      Kind regards Georgina

        Dear Professor Gregory Derry,

        You wrote in the Abstract: "Because reductionism ultimately fails as an explanation of all things, a mutually commensurable set of fundamental ideas is required, as opposed to a single fundamental Theory of Everything."

        I have concluded from my deep research that Nature must have devised the only permanent real structure of the Universe obtainable for the real Universe existed for millions of years before man and his finite complex informational systems ever appeared on earth. The real physical Universe consists only of one single unified VISIBLE infinite surface occurring eternally in one single infinite dimension that am always illuminated mostly by finite non-surface light.

        Joe Fisher, ORCID ID 0000-0003-3988-8687. Unaffiliated

        Thank you Vladimir. I have read your interesting essay, and I will comment on it there when I have a chance. My interests incline more towards epistemology than ontology, but I agree that both are important.

        Scott--

        I did read you essay, which I enjoyed. However, I did not see any actual grappling with the nature of emergent phenomena there. I'll have more to say later as a response to the essay, but I'm pressed for time right now.

        Actually, I didn't see the ratings until the same time I saw your comment, so I can't say much in response. Thank you for reading the essay and commenting on it, though.

        Georgina--

        Thank you so much for your kind words and your enthusiasm for my essay. It was enjoyable to think through the question systematically and try to say something concrete enough to be meaningful but also make it stimulating and interesting. By the way, I have to admit that in my own work, when I attempted to explain the emergence of purpose in complex systems, I eventually was defeated and had to resort to reductionistic methods to approach the problem (but I couldn't solve the problem). Your comment about pruning out older results of dubious validity is interesting--I suppose that happens naturally in critical reviews and revised textbooks, but is there a more efficient way?

        Your comment is very intriguing, but I have to admit that I don't really understand it well enough to coherently reply. If you are saying that emergence is illusory because it's grounded in the primordial substance of the universe, then I did offer a brief rebuttal to that argument in the essay.

          Dear Gregory Derry,

          I am stating as clearly as I can that the visible reality of there only ever being one single unified VISIBLE surface eternally occurring in one single infinite dimension that am always illuminated by mostly finite non-surface light could never have possibly had any humanly contrived complex abstract linguistic agency.

          Joe Fisher, Realist

          Professor Derry,

          You lay out a both broad and incisive argument for a conceptual grounding that seems possible, but still illusive. As someone approaching physics from a philosophic perspective, I would offer up a few observations;

          Say reality is a dichotomy of energy and form. Energy manifesting and motivating form, while form defines and consequently constricts energy. For instance, consider human society, in which biological and social energies are always pushing against the limits of their civil, cultural and economic forms.

          Then to push this envelope a bit further and consider galaxies, in terms of radiation expanding outward, as gravity coalesces inward. Potentially setting up what amounts to a cosmic convection cycle.(Which poses the question of whether gravity is a property of mass, or mass an effect of gravity.)

          Then to going back in the other direction, consider that evolution has given us a central nervous system to process form/information and the digestive, respiratory and circulatory systems to process energy.

          So what is the relationship? Logically energy is dynamic and presumably conserved, so it is both creating new forms and information, as it dissipates the old forms. Effectively this means energy and form go opposite directions of time. Energy goes from past to future forms, as these forms coalesce and dissolve, thus going future to past. Tomorrow becomes yesterday because the earth turns.

          Which also goes to the relationship of process and entities. Consider a factory, in that while the product goes start to finish, the process points the other direction, consuming material and expelling product. Life is similar, as individuals go from birth to death, being in the future to being in the past, while species are constantly moving onto new generations, shedding old, past to future.

          Consider as well, that the relationship between thought and consciousness is similar, in that consciousness is constantly expanding out to new perceptions, as old ones fade into the past.

          Consequently I would argue that time is an effect of activity, not an underlaying dimension. Duration is simply the state of the present, as events form and dissolve.

          Time is asymmetric because it is a measure of action and action is inertial. The earth turns one direction, not both. Different clocks can run at different rates because they are separate actions. A faster clock will use energy quicker, like an animal with faster metabolism will age quicker, than one with a slower rate. Yet they remain in the same present.

          The future is not predetermined by deterministic laws, because it is the occurrence of events which fully calculates the total input into them, such as light coming from opposite directions. As Alan Watts put it, the wake doesn't steer the boat, the boat creates the wake.

          This makes time an effect of action, similar to temperature, rather than space. As such, these are the two primal aspects of action. We could correlate measures of temperature and volume, using ideal gas laws. One, the temporal, is linear, while the other, thermal, is cyclical.

          Which are the conceptual bases of your two explanatory structures, reductionism and the feedback loops which power emergence. Form coalescing inward, as energy radiates outward.

          It could also be argued that the left, rational hemisphere of the brain is temporal and linear, while the right, emotional side is thermal.

          The Feral Philosopher

          also another Marylander,

          John Merryman

            John--

            Thanks for the comments, a lot of things to think about in your post. My immediate reaction, though, based on what you wrote, is to ask you if you are familiar with the idea of using entropy to explain the "arrow of time." If that isn't something you've encountered, take a look at it--I think you may find it interesting. Cheers.

            Professor Derry,

            Yes. Time as a dimension is presumed to be symmetric, in that whichever way it's measured, it would yield the same unit, like a foot is a foot measured from A to B, or B to A, presumably measuring from event A to event B is the same measure of duration as B to A. So it is assumed that the asymmetric effect of time, that it only goes from past to future events, emerges with entropy. My observation is that what is being measured are specific actions and it is the inherent inertia of the action which gives it its asymmetry.

            Professor,

            and a 'Hello again to JBM'.

            I had read your essay when it had a single community rating of 10, and as I do not regard myself as professionally qualified to opine at either extreme, contributed a 9 to the public rating. jrc

            I would, however, like to differ with conventional thinking about entropy based on my admittedly personal preference for a field continuum paradigm and a condensed matter regime producing unitary field precipitate masses. A continuum conceptually begins to become undone be any effort to mathematically represent it, where by metaphysical description it has no real parts but simply connects with itself smoothly across characteristic variation, such as might be defined as energy density. But energy being deemed physically real, yet only materially so by virtue of proportional density; there is a non-entropic property to energy in the raw. So *entropy* is thus an emergent property of differentiated masses condensed from an energy supersaturate condition which none-the-less follows 'the arrow of time'. I would conject that the uni-directional nature of time is a fundamental consequence of point locality in neutral centrality, where given that if there is existence there whould become spacetime; and that an (Boolean) intersection of a span of time with a span of space would incite a leap-frog response of attenuation progressing to a self-replicating proportion (such as phi) limiting at light velocity. Since Minkowski it has been merely taken for granted that the scale of time and that of space are identical, yet there is no universal scale to be found for either, only the limit of light velocity. So any occurance of point locality would engender existential propagation of either dimension at any relative scale between nil and *c*. A longer span of space intersection with a shorter span of time would set the initial relative scales and as time sought to equal the span of space, space would also attenuate approaching the golden mean at light speed. While a shorter span of space intersection with a longer span of time would incite the opposite leap-frog condition propogating out of existence. Hence a possible mathematical rationale could be found for both the Arrow of Time and Universal Constant Light Velocity, and an origin of Energy. Entropy can thus enter the physics when a general definition of inertia is accepted. Cheers, jrc

            5 days later

            Hi Prof Gregory Derry

            Your essay in well readable , you are very knowledged learned person dear prof Gregory Derry. The idea of four foundational pillars as you mention are very logical... .......... very nice idea.... I highly appreciate your essay and hope you please spend some of the valuable time on Dynamic Universe Model also and give your some of the valuable & esteemed guidance

            Some of the Main foundational points of Dynamic Universe Model :

            -No Isotropy

            -No Homogeneity

            -No Space-time continuum

            -Non-uniform density of matter, universe is lumpy

            -No singularities

            -No collisions between bodies

            -No blackholes

            -No warm holes

            -No Bigbang

            -No repulsion between distant Galaxies

            -Non-empty Universe

            -No imaginary or negative time axis

            -No imaginary X, Y, Z axes

            -No differential and Integral Equations mathematically

            -No General Relativity and Model does not reduce to GR on any condition

            -No Creation of matter like Bigbang or steady-state models

            -No many mini Bigbangs

            -No Missing Mass / Dark matter

            -No Dark energy

            -No Bigbang generated CMB detected

            -No Multi-verses

            Here:

            -Accelerating Expanding universe with 33% Blue shifted Galaxies

            -Newton's Gravitation law works everywhere in the same way

            -All bodies dynamically moving

            -All bodies move in dynamic Equilibrium

            -Closed universe model no light or bodies will go away from universe

            -Single Universe no baby universes

            -Time is linear as observed on earth, moving forward only

            -Independent x,y,z coordinate axes and Time axis no interdependencies between axes..

            -UGF (Universal Gravitational Force) calculated on every point-mass

            -Tensors (Linear) used for giving UNIQUE solutions for each time step

            -Uses everyday physics as achievable by engineering

            -21000 linear equations are used in an Excel sheet

            -Computerized calculations uses 16 decimal digit accuracy

            -Data mining and data warehousing techniques are used for data extraction from large amounts of data.

            - Many predictions of Dynamic Universe Model came true....Have a look at

            http://vaksdynamicuniversemodel.blogspot.in/p/blog-page_15.html

            I request you to please have a look at my essay also, and give some of your esteemed criticism for your information........

            Dynamic Universe Model says that the energy in the form of electromagnetic radiation passing grazingly near any gravitating mass changes its in frequency and finally will convert into neutrinos (mass). We all know that there is no experiment or quest in this direction. Energy conversion happens from mass to energy with the famous E=mC2, the other side of this conversion was not thought off. This is a new fundamental prediction by Dynamic Universe Model, a foundational quest in the area of Astrophysics and Cosmology.

            In accordance with Dynamic Universe Model frequency shift happens on both the sides of spectrum when any electromagnetic radiation passes grazingly near gravitating mass. With this new verification, we will open a new frontier that will unlock a way for formation of the basis for continual Nucleosynthesis (continuous formation of elements) in our Universe. Amount of frequency shift will depend on relative velocity difference. All the papers of author can be downloaded from "http://vaksdynamicuniversemodel.blogspot.in/ "

            I request you to please post your reply in my essay also, so that I can get an intimation that you replied

            Best

            =snp

            Dear Fellow Essayists

            This will be my final plea for fair treatment.,

            FQXI is clearly seeking to find out if there is a fundamental REALITY.

            Reliable evidence exists that proves that the surface of the earth was formed millions of years before man and his utterly complex finite informational systems ever appeared on that surface. It logically follows that Nature must have permanently devised the only single physical construct of earth allowable.

            All objects, be they solid, liquid, or vaporous have always had a visible surface. This is because the real Universe must consist only of one single unified VISIBLE infinite surface occurring eternally in one single infinite dimension that am always illuminated mostly by finite non-surface light.

            Only the truth can set you free.

            Joe Fisher, Realist

            8 days later

            Hello Gregory,

            Congratulations. It was a pleasure to read your comments. For a scientist with your depth of experience and understanding, you held faithfully to the contest evaluation criterion that essays should be 'accessible to a diverse, well-educated but non-specialist audience'; a point that some authors appear to have overlooked.

            While I had not considered 'explanatory structures' as being anything more than our best efforts to describe objective and subjective realities, I admit that, in the absence of the 26 letters of the alphabet, we are hard pressed to 'think' about, far less 'communicate', our perceptions of the milieu that we find ourselves entangled in. A corollary of this thought lies in your statement: 'I'm claiming that these complex system explanatory structures are

            fundamental.' Certainly, utilizing the alphabetic system takes us as far as we can go in our search for fundamental truths, and that in itself is a fundamental truth!

            While I seek the ultimate precondition upon which all things and ideas depend, I readily acknowledge that a multitude of phenomena, including ideas, are conditional upon the existence of a multitude of quasi-fundamentals, as effects are dependent upon causes.

            The FQXi question What is "Fundamental?" invites a singular response; otherwise the question would be framed: What are "Fundamental?" Thus I was led to my singular fundamental revelation: 'Existence' is the prerequisite for all else.

            The only exception to that interpretation is to respond to the FQXi question with the answer: 'Yes'.

            Insofar as time and space are generally presumed to be infinite in all directions, why should energy and matter not be infinitely durable, simply transposing themselves from one to the other as determined by circumstances?

            The 'thorn in the lion's paw' (i.e. the popular notion of an expanding universe in the absence of any accounting for what is beyond) requires to be extracted in order to reconcile the term 'Uni' with the concept of a single 'Universe' that is infinite. What many scientists refer to as the 'Universe' is simply the perceptible portion 'of all there is' that goes on forever, 'breathing', a dynamic that Einstein expressed in his general theory of relativity that modeled the large-scale structure of the universe. But all is subject to change, aka 'emergence' - with exceptions!

            Finally, as a traveler through nature, I concur with your assessment that 'in our quest for understanding, the journey is more important than the destination.' Go well.

            Gary.

            13 days later

            Dear Gregory,

            I highly appreciate your beautifully written essay.

            It is so close to me. «I believe that Being will al ways be able surprise us with new mysteries to solve, and the history of science (including recent history) is certainly on my side in this prediction. I don't regard this as a pessimistic attitude, though, because in our quest for understanding, the journey is more important than the destination».

            I hope that my modest achievements can be information for reflection for you.

            Vladimir Fedorov

            https://fqxi.org/community/forum/topic/3080