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On Plato, the Early Church, and Modern Science: An Eclectic Meditation
November 30, 2004 | Jean F. Drew

Posted on 11/30/2004 6:21:11 PM PST by betty boop

On Plato, the Early Church, and Modern Science: An Eclectic Meditation
By Jean F. Drew

God, purposing to make the universe most nearly like the every way perfect and fairest of intelligible beings, created one visible living being, containing within itself all living beings of the same natural order.

Thus does Plato (d. 347 B.C.) succinctly describe how all that exists is ultimately a single, living organism. At Timaeus20, he goes on to say:

“There exists: first, the unchanging form, uncreated and indestructible, admitting no modification and entering no combination … second, that which bears the same name as the form and resembles it … and third, space which is eternal and indestructible, which provides a position for everything that comes to be.”

And thus we find a description of the universe in which Being and Existence (Becoming) — the one God and the multiplicity of things — are bound together as a single living reality whose extension is mediated by Space (which for us moderns implies Time).

Our aim in this essay is to define these ideas and their relationships, and trace their historical development from the ancient world to the present. Taking a page from the late Eric Voegelin (1901–1985, philosopher of history specializing in the evolution of symbolization), we will follow a history-of-ideas approach to these issues. Along the way we will find that not only philosophy and cosmology, but also theology and even modern science can illuminate these seminal conceptions of Platonic thought. We must begin at the beginning, that is, with God — who is absolute Being in Plato’s speculation, of whom the cosmos itself is but the image (eikon) or reflection.

When Plato speaks of God (or when Aristotle does for that matter, as in e.g., Nicomachean Ethics), he is not referring to the Olympian gods, to Zeus, Hera, Athena, Poseidon, and the rest of the gang of “immortals.” For the Olympians are like man in that they are creatures of a creating God. Not only that, but they are a second generation of gods, the first having reigned in the antediluvian Age of Chronos; which is to say that the Olympians’ rule or law is not everlasting, but contingent. Thus they are not self-subsistent, but dependent (contingent) on a principle outside of themselves. We might say that the central difference between Plato’s God and the Olympians consists in the fact that the latter are “intracosmic” gods, and the former is “extracosmic,” that is, transcending all categories and conditions of space-time reality. In contrast, the intracosmic gods are subject to change, to contingency; and so, though they may truly be said to exist in some fashion, cannot be said to possess true Being. (More on these distinctions in a minute.)

It is clear that for Plato, God is the “Beyond” of the universe, or in other words, utterly transcendent, perfectly self-subsistent Being, the “uncaused cause” of all the multiplicity of existents in the universe. In yet other words we can say that, for Plato, the cosmos is a theophany, a manifestation or “presence” of the divine Idea — in Christian parlance, the Logos if I might draw that association — in the natural world.

As Wolfgang Smith notes, “Christian teaching is based upon the doctrine of the Logos, the Word of God, a term which in itself clearly suggests the idea of theophany. Moreover, what is implicit in the famous Prologue of St. John [“In the beginning was the Word, and the Word was with God, and the Word was God. The same was in the beginning with God. All things were made by him; and without him was not any thing made that was made. In him was life; and the life was the light of men. And the light shineth in darkness; and the darkness comprehended it not.” (John 1:1–5)] is openly affirmed by St. Paul when he declares that “the invisible things of Him from the creation of the world have been clearly seen, being understood by the things that are made, even His power and Godhead” (Rom. 1:20) … The indisputable fact is that at its deepest level Christianity perceives the cosmos as a self-revelation of God.” [Wolfgang Smith, Cosmos and Transcendence, 1984]

Being and Existence (Becoming)
Being is a concept so difficult that it comes close to eluding our grasp altogether. It is utterly beyond space and time; imperishable; entirely self-subsistent, needing nothing from outside itself in order to be complete; essential; immutable; and eternally perduring. Contrast this with the concept of existence, regarding which Plato asks “how can that which is never in the same state be anything?” And this is the clue to the profound difference between being and existence: The existing things of this world are mutable and transient.

We must in my opinion begin by distinguishing between that which always is and never becomes from that which is always becoming but never is. The one is apprehensible by intelligence with the aid of reasoning, being eternally the same, the other is the object of opinion and irrational sensation, coming to be and ceasing to be, but never fully real. In addition, everything that becomes or changes must do so owing to some cause; for nothing can come to be without a cause. [Timaeus, 3:28]

Smith writes of the existing or “becoming” things that

“… they come upon the scene, we know not from whence; they grow, change, and decay; and at last they disappear, to be seen no more. The physical cosmos itself, we are told, is a case in point: it, too, has made its appearance, perhaps some twenty billion years ago, and will eventually cease to exist [i.e., finally succumbing, we are told, to thermodynamic entropy or “heat death”]. What is more, even now, at this very moment, all things are passing away. ‘Dead is the man of yesterday,’ wrote Plutarch, ‘for he dies into the man of today: and the man of today is dying into the man of tomorrow.’ Indeed, ‘to be in time’ is a sure symptom of mortality. It is indicative, not of being, but of becoming, of ceaseless flux.”

All the multiplicity of existents in the universe are in a state of becoming and passing away. But Plato’s great insight is that all things in the state of becoming — that is, all existing things — are whatever they are because they are participations in Being. That is to say, “we perceive the trace of being in all that exists,” writes Smith, “and that is why we say, with reference to any particular thing, that it is.” Existence, in other words, is contingent on Being.

But we wonder: In what way is this possible? And if existents participate in being, what is that Being in which they participate?

In Exodus 3:14 Moses has experienced a theophany: While tending his flock on Mount Horeb, suddenly he hears the voice of God issuing from a burning bush: God is speaking to him! Reverentially, Moses inquires of God what is His name (meaning: what is His nature or character).

And God said unto Moses, I AM WHO AM: and He said, Thus shalt thou say unto the children of Israel, I AM hath sent me unto you.

God has told Moses: that He is Being (“I AM”). And the strong implication is that there is no “other” being: “I alone AM.” For “I” is plainly singular in form.

Smith draws the crucial point, “God alone IS. But how are we to understand this? ‘It seems to me,’ writes St. Gregory of Nyssa, ‘that at the time the great Moses was instructed in the theophany he came to know that none of those things which are apprehended by sense perception and contemplated by the understanding really subsist, but that the transcendent essence and cause of the universe, on which everything depends, alone subsists.’ But why? Does not the world exist? Are there not myriads of stars and galaxies and particles of dust, each existing in its own right? And yet we are told that the transcendent essence alone subsists. ‘For even if the understanding looks upon any other existing things,’ the great theologian goes on to say, ‘reason observes in absolutely none of them the self-sufficiency by which they could exist without participating in true Being. On the other hand, that which is always the same, neither increasing nor diminishing, immutable to all change whether to better or to worse (for it is far removed from the inferior and has no superior), standing in need of nothing else, alone desirable, participated in by all but not lessened by their participation — this is truly real Being.’”

Smith continues: “In the words of St. Gregory, ‘that which is always the same, neither increasing nor diminishing, immutable to all change … is truly real being.’ As concerns ‘existing things,’ on the other hand, the teaching implies that these entities are always changing, always in a state of flux, so that their very existence is in a way a process of becoming, in which however nothing is actually produced. This has been said time and again, beginning with Heraclitus and the Buddhist philosophers. And there can be little doubt that it is true: even modern physics, as we can see, points to the same conclusion. Only there is another side to the coin which is not always recognized. Existent things — the very flux itself — presuppose what Gregory and the Platonists have termed ‘a participation in Being.’ The point is that relative or contingent existences cannot stand alone. They have not an independent existence, a being of their own. ‘In Him we live, and move, and have our being,’ says St. Paul….”

St. Augustine confirms the Platonic insight this way:

I beheld these others beneath Thee, and saw that they neither altogether are, nor altogether are not. An existence they have, because they are from Thee; and yet no existence, because they are not what Thou art. For only that really is, that remains unchangeably.

Space
Space is the third essential term of the Platonic cosmology: It is the matrix in which living things and all other existents participate in Being. Plato’s creation myth — the Myth of the Demiurge in Timaeus — elucidates the Platonic conception of Space.

For Plato, the God of the Beyond is so “beyond” that, when it came time for creating the Cosmos, he didn’t even do it himself. He sent an agent: the Demiurge, a mythical being endued by God to be in divine likeness of God’s own perfect love, truth, beauty, justice, and goodness. The embodiment of divine perfections, the Demiurge wishes to create creatures just as good and beautiful as himself, according to the standard of the divine Idea — a direct analog, it seems to me, of the Logos theory of the ancient Church. Indeed, Eric Voegelin sees in the Demiurge the symbol of Incarnation [Order and History Vol. 3: Plato and Aristotle, 1957]:

“The Demiurge is the symbol of Incarnation, understood not as the result of the process but as the process itself, as the permanent tension in reality between the taxis of form or idea and the ataxia of formlessness.”

Similarly to the Christian account, the Demiurge in a certain way creates ex nihilo — that is, out of Nothing. At first glance, Plato is seen specifying, not a pre-existing “material” but a universal field of pure possibility called Chora, “Space.” Perhaps we may find in this concept a strong analogy to Isaac Newton’s concept of Absolute Space (see below).

Chora seems to indicate the idea of an eternal, universal field of pure stochastic potentiality that needs to become “activated” in order to bring actual beings into existence. In itself, it is No-thing, i.e., “nothing.” This “activation” the Demiurge may not effect by fiat: He does not, for instance, “command” to “Let there be Light!” The main tool at his disposal is Peitho, “persuasion.”

And if Chora is not so persuaded, it will remain in a state of “nothingness.” It will remain unformed, in the condition of ataxia. Of itself it is “Nothing”; by itself, it can do nothing. It cannot generate anything out of itself, not even matter in primaeval form.

And thus Plato introduces the figure of the Demiurge into his creation myth, symbolizing form or idea — the principle of (formative) taxia that draws (formless) ataxia into existence. We moderns might be tempted to describe the Demiurge as constituting an “information set” together with an “energy source,” who “persuades” the pure stochastic potentiality of formless, absolute, empty space into actualized form, and thus existence. From the cosmic standpoint, he makes unity out of multiplicity, in harmony and geometrical proportion:

“The best bond is the one that effects the closest unity between itself and the terms it is combining; and this is best done by a continued geometrical proportion.” [Timaeus, 4]

Thus the Demiurge is a kind of “divine geometer,” producing the forms (or mathematical ideas) that Chora can be persuaded to conform to, and thus come into existence.

But the Demiurge does more than just get things started: As bearer of the divine Idea — as pure love and beauty and goodness and truth — he continues always persuading Chora to generate creatures as like himself as possible (i.e., reflecting his own divine qualities at whatever generic stage), throughout all eternity. Thus creation is a continuous process in space-time. Moreover, it is the source and driver of evolution as a universal natural process.

Through the ongoing activity of the Demiurge, men and the world are constantly being informed and renewed by the divine Idea; and thus a unified cosmic whole, a “One Cosmos,” a universal order comes into being at the intersection of time and timelessness, of immanent and transcendent reality, in the medium of Space (and Time).

Compare the Platonic creation myth with the philosophy of Dionysius the [Pseudo-]Areopagite, said to be the Greek converted by St. Paul in Acts, 17:34. For Dionyius, the “names of God” — the divine qualities — are goodness, being, life, wisdom, power, and justice. Joseph Stiglmayr writes [Cath. Encycl. at the entry for Dionysius the Pseudo-Areopagite], that for Dionysius, God is

“… the One Being (to hen), transcending all quality and predication, all affirmation and negation, and all intellectual conception, [Who] by the very force of His love and goodness gives to beings outside Himself their countless gradations, unites them in the closest bonds (proodos), keeps each by His care and direction in its appointed sphere, and draws them again in an ascending order to Himself (epistrophe) … all created things [proceed] from God by the exuberance of being in the Godhead (to hyperpleres), its outpouring and overflowing … and as a flashing forth from the sun of the Deity. Exactly according to their physical nature created things absorb more or less the radiated light, which, however, grows weaker the farther it descends. As the mighty root sends forth a multitude of plants which it sustains and controls, so created things owe their origin and conservation to the All-Ruling Deity…. Patterned upon the original of Divine love, righteousness, and peace, is the harmony that pervades the universe…. All things tend to God, and in Him are merged and completed, just as the circle returns into itself, as the radii are joined at the centre, or as the numbers are contained in unity.”

The Platonic resonances seem unmistakeable in these lines. It appears that both Platonic speculation and the Logos doctrine of the ancient Church as articulated by Dionysius are in agreement that Creator must be “beyond” Creation in order to resonate with it — which resonance is what makes the universe to be alive — i.e., a living universe.

C. A. Dubrey points out [Cath. Encycl. at the entry “Teleology”], that the theology of St. Thomas Aquinas makes it clear that, “Intrinsic finality [we are to think of this as a blend or merger of efficient and final causes in the Aristotelian sense] consists in the fact that every being has within itself a natural tendency whereby its activity is directed towards the perfection of its own nature…. St. Thomas does not hesitate to speak of ‘natural appetite,’ ‘natural inclination,’ and even ‘intention of nature,’ [we moderns might be tempted to add ‘instinct’ to this list] to mean that every being has within itself a directive principle of activity. Accordingly, God does not direct creatures to their ends from outside, but through their own nature…. The Divine plan of creation is carried out by the various beings themselves acting in conformity with their nature.

When, however, this finality is called immanent, this expression must not be understood in a pantheistic sense, as if the intelligence which the world manifests were to be identified with the world itself, but in the sense that the immediate principle of finality is immanent in every being…. Thus the unconscious finality in the world leads to the conclusion that there must be an intelligent cause of the world.” [Emphasis added.]

Aquinas’ insight, and also Plato’s, evokes a reconsideration of Isaac Newton’s concept of Absolute Space. Possibly this may be understood in the following terms. First, Absolute Space is “empty” space. Second, it is not a property of God, but an effect of His Presence; i.e., we advert to theophany again. The question then arises, in what “where” or “when” does this theophany take place? Perhaps Newton’s answer would be: In the beginning, and continuously thereafter. Second, it has been suggested that Newton intends us to understand Absolute Space as the sensorium Dei: “God constitutes space and time through his eternity and omnipresence” [ existendo semper et ubique, durationem et spatium consitutit: Philosophiae Naturalis Principia Mathematica, 3d ed., 1726]. Wolfhart Pannenberg writes,

“Now there are a number of good reasons — suggested by both philosophical and scientific thought — to consider time and space as inseparable. Einstein’s field concept comprises space, time, and energy. It takes the form of a geometrical description, and this seems to amount to a spatialization of time. The totality of space, time, and energy or force are all properties of a cosmic field.

“Long before our own age a theological interpretation of this subject matter had been proposed, and it was Isaac Newton who offered this proposal. It too referred everything to space or, more precisely, to the correlation of force as in the case of a force like gravitation acting at a distance. Newton’s well-known conception of space as sensory of God (sensorium Dei) did not intend to ascribe to God an organ of sense perception, the like of which God does not need, according to Newton, because of divine omnipresence. Rather, Newton took space as the medium of God’s creative presence at the finite place of his creatures in creating them.” [Wolfhart Pannenberg, Toward a Theology of Nature, 1993]

Thus the infinite takes priority over every finite experience, including intellectual experience — a position decisively argued by Descartes, as Pannenberg avers, “in his thesis that the idea of God is a prior condition in the human mind for the possibility of any other idea, even that of the ego itself.”

* * * * * *

The Influence of Platonic Speculation on the Early History of the Church
D. Edmund Joaquin, an insightful and gracious Christian friend, writes, “We understand that the universe is created and sustained by the Word [the Logos], and not only that, but by the Word sounding. God sustains the universe consciously and actively. He has not gone away and left us. In fact, He reveals Himself to us, and His final revelation is in the person of Christ [the Logos]. Christ is not an abstract aspect of God, like wisdom. He is God. He is God incarnating in the world that He himself has made.”

Joaquin further observes that “[the Gospel of] John is written to the Greeks and put into words that they could understand.” It seems there’s a mystery buried in here somewhere. Consider: Socrates was the teacher of Plato, who was the teacher of Aristotle, who was the teacher of Alexander — and Alexander spread Greek culture throughout Eurasia, the Middle East, and the Indian subcontinent. Add to this the fact that the great evangelist, St. Paul, had some difficulty converting the Jews to the Christian faith; but he converted the Greeks in droves. Not only St. John, but also St. Paul speaks in terms the Greek mind could readily grasp, as when he says God is He “in Whom we live and move and have our being.” These historical connections do not appear to be accidental, coincidental, nor incidental to the spread of the early Christian Church.

According to The Catholic Encyclopedia, the Greeks strongly responded to Christianity for its moral beauty as well as its truth. A case in point is St. Justin Martyr. He was a man of Greek culture, born in Palestinian Syria about the year 100 A.D, who converted to the faith around 130 A.D. Justin became one of Christianity’s earliest and most powerful apologists, and ended up condemned by the Roman authority for refusing to sacrifice to the pagan gods, for which offense he was summarily executed by the Imperium, along with several other of his “refusnik” co-religionists. The official record of their martyrdom is extant:

“The Prefect Rusticus says: Approach and sacrifice, all of you, to the gods. Justin says: No one in his right mind gives up piety for impiety. The Prefect Rusticus says: If you do not obey, you will be tortured without mercy. Justin replies: That is our desire, to be tortured for Our Lord Jesus, and so to be saved, for that will give us salvation and firm confidence at the more terrible universal tribunal of Our Lord and Saviour. And all the martyrs said: Do as you wish; for we are Christians, and we do not sacrifice to idols. The Prefect Rusticus read the sentence: Those who do not wish to sacrifice to the gods and to obey the emperor will be scourged and beheaded according to the laws. The holy martyrs glorifying God betook themselves to the customary place, where they were beheaded and consummated their martyrdom confessing their Saviour.”

Jules Lebreton writes (at the entry for St. Justin Martyr in Cath. Encycl.) “Justin tries to trace a real bond between philosophy and Christianity: according to him, both one and the other have a part in the Logos, partially disseminated among men and wholly manifest in Jesus Christ.”

Yet for all their apparent similarities and resemblances in many respects, there is a profound difference between Platonic insight and the Christian one: and this pertains to the relations between God and man.

Both Plato and Justin proclaim the transcendent God. Yet for Plato, God is so “beyond” as to be almost impossible of human grasp. Yet Plato felt the “divine pulls” in his own nature. These Plato thought could be accounted for and articulated by an act of pure unaided intellect, that is by nous, in a state of intense contemplation.

Contrast this position with Justin Martyr’s, who insisted that human wisdom was impossible without the testimony of the Prophets (whom God himself had informed and instructed) and the action of the Holy Spirit. For Plato, man’s relations with God consist of operations of the mind. For Justin, they are operations of the heart, of the Spirit. For Justin, God is not a mental abstraction: He is real Personality with whom one can have direct personal relations, in the Spirit.

A later writer, John Scotus Eriugina (ninth century) elaborates the Justinian position, in the process noting that there is a “downward tendency” of the soul towards the conditions of animal existence, and that this has only one remedy: Divine grace, the free gift of the Holy Spirit. “By means of this heavenly gift,” writes William Turner [at the entry for Scotus in the Catholic Encyclopedia], “man is enabled to rise superior to the needs of the sensuous body, to place the demands of reason above those of bodily appetite, and from reason to ascend through contemplation to ideas, and thence by intuition to God Himself.”

The pull of animal nature is an idea we also find in Plato, and also the countervailing pull from the divine Beyond. Man lives in the metaxy, in the “in-between reality” constituted by the two. Man’s task is to resolve this tension, and establish the proper balance that expresses the highest and best development of his human nature. But man must do this entirely by himself by means of nous or reason. There is no spiritual help “extra” to the human psyche available to facilitate this process.

In contrast, as Lebreton points out, Justin Martyr

“…admits that the soul can naturally comprehend what God is, just as it understands that virtue is beautiful … but he denies that the soul without the assistance of the Holy Ghost [Spirit] can see God or contemplate him directly through ecstasy, as the Platonic philosophers contended. And yet this knowledge of God is necessary for us: ‘We cannot know God as we know music, arithmetic, or astronomy’; it is necessary for us to know God not with an abstract knowledge but as we know any person with whom we have relations. The problem which it seems impossible to solve is settled by revelation; God has spoken directly to the Prophets, who in their turn have made Him known to us…. It is the first time in Christian theology that we find so concise an explanation of the difference that separates Christian revelation from human speculation.” [Emphasis added]

* * * * * *

Natural Law, Contingency, and the Scientific Method
The Platonic model encourages us to recognize that the universe is zoon empsychon ennoun, a living creature endowed with soul and intelligence. The myth of the Demiurge describes the world process as a type of incarnation, a dynamic relation of absolute being and contingent becoming evolving in space and time in a manner expressing a perduring taxia–ataxia relation. The Cosmos itself — the totality of all existing things — like its constituents, for example man and even the stars, is an eikon of being-in-becoming, a reflection or image of the divine Idea. Time itself is but a “moving image of eternity.” The life of the cosmos is wholly dependent, contingent on the Idea from which it manifests.

It is a lawful, orderly universe, yet one in which new occurrences are always arising. These new events are coming from, as it were, a “sea of contingency” analogous to Plato’s conception of Space, that is Chora — the infinite field of unformed, pure potentiality.

The immediately foregoing ideas, of course, are not scientific ones strictly speaking. Still, there are elements here that perhaps science would do well to consider, in order to maintain the integrity of its own method. For one thing, it seems science itself, in its disclosure of the regularities of nature, seems to have an in-built tendency to overlook contingency. We may define an event as contingent if a description of it is neither self-evident nor necessary, “if it could have happened differently,” as Ted Peters puts it in his Preface to Pannenberg’s Towards a Theology of Nature.

C. A. Dubray writes [“Teleology,” Cath. Encycl.], “The fact that the world is governed by laws, far from giving any support to the mechanistic conception, is rather opposed to it. A law is not a cause, but the expression of the constant manner in which causes produce their effects.” In other words, natural laws are expressions of observable regularities that occur in the world of existent phenomena in ordinary space-time reality. Thus, the laws themselves have no force as “causes”: they are descriptions.

Yet the focus on regularity inevitably masks the particularity and contingency of unique events. As Ted Peters notes, it is here that “we run into a problem of focus in the scientific community, because virtually all the theoretical attention is given to the regularity of nature’s laws, while the contingency of natural events slips into the nearly invisible background.” Peters continues:

“What researchers concentrate on are the uniformities that can be expressed in timeless equations. A dictionary of equations describing these uniformities allegedly constitutes scientific knowledge…. A closer examination, however, reveals that the applicability of these equations to concrete cases of natural processes requires certain initial and marginal conditions, conditions that in every case are contingent. Only when contingent conditions permit can we expect a natural law to operate as expected.”

To the extent that the scientific method of inquiry is premised on an “If/Then” logical construction — which seems ever to be the case — the method itself is an exercise in contingency, yet nonetheless one in which “Determinacy gets thematized, whereas contingency gets ignored.” Arguably this is a serious bias having epistemological implications; for e.g., “if the laws of classical dynamics are in principle temporally reversible, the actual course of natural events from which those laws have been abstracted is not. The reality of nature is first and foremost a historical reality.”

Pannenberg suggests a corrective for this “bias,” acknowledging: “That modern science so easily lends itself to abuse cannot be prevented in principle. It is one of the risks involved in the abstract study of regularities that either are inherent in nature itself or can be imposed on natural processes [e.g., as in ideological, technical, or engineering solutions]. This risk cannot be met on the level of scientific description itself but must be met first on the level of philosophical reflection on the work of science. It is on this level that the abstract form of scientific description must be considered with special attention to what it is “abstracted from” and what is methodically disregarded in the abstract formulas of science.”

And so contingent conditions — i.e, initial and boundary conditions — must be restored to their proper place in our deliberations, for they “are required for any formula of natural law to be applied. They are contingent at least in that they cannot be derived from the particular formula of law under consideration.… The mathematical formula of a natural law may be valid without regard to time. The physical regularity that is described by such a formula is not independent of time and temporal sequence. But it is only that physical regularity which makes the mathematical formula a law of nature. This suggests that the laws of nature are not eternal or atemporal because the fields of their application, the regularities of natural processes, originate in the course of time. Thus it also becomes understandable that new patterns of regularity emerging in the sequence of time constitute a field of application for a new set of natural laws….”

We may recognize that the total process of natural events presents itself to observation as a mesh of contingency and regularities. It is the task of science to pursue thematically the aspect of regularity. But, asks Pannenberg, can science “ever succeed in bringing into view the entirety of nature as determined in all details by a number of laws that are in any case not infinitely complex? This would mean at the same time that a stage of research is conceivable from which nothing more could be discovered. Many natural scientists have had this nightmare because of the successes of their own research. Fortunately it probably is not a truthful dream.”

For, says Pannenberg, “laws always uncover what is necessary superimposed on what is contingent. Given the undeniable contingency of occurrences in natural events, can we recognize in their special character as occurrences … [that] regularity as their own element in such a way that the presence of regularity can be thought together with the contingency of occurrences, not only under abstraction from the contingency of occurrences?” [Emphasis added]

Which is why Pannenberg advocates an opening up of new viewpoints in scientific research, “not because physical hypotheses or insights can be derived from them but because they open up and enlarge the intellectual space on which the formation of physical hypotheses depends…. In physics also, horizons of questioning have to be opened up first of all in order that hypotheses that arise in them can be examined by experiment and classified theoretically.”

Perhaps we need a greater appreciation of the “fitness” of the scientific method to engage the truly great questions of life, which ever seem to involve the relations of law and contingency. Leibniz propounds two great questions of perennial interest to the human mind: (1) Why are things the way they are and not some other way? (2) Why does anything exist at all?

Such questions, scientists will readily tell you, are beyond the purview of the scientific method. But does that mean such questions have no force or meaning such that they should not be asked at all?

Perhaps the incapability of the scientific method to answer such questions owes to the fact that all the great physical laws are acknowledged to be time-reversible; but we know that existence in space and time is not a time-reversible process. As Pannenberg states, it is a historical process. We might even say it is an evolutionary process.

Which suggests an analogy that might enlighten these questions, sharpen their meanings, and suggest additional questions: an analogy to direct human experience. Pannenberg writes of human beings, who do seem to live in a “time-irreversible,” that is “historical” process:

“Human beings never live only in the now. Rather, they experience their present as heirs of the past and as its active change. They anticipate the future in fear, hope, and planning; and in the light of such anticipation of the future they return to their present and the heritage of their past. The fact that we know of historical continuity is at least also conditioned by this peculiarity of human experience with time. If there is a new event, then it modifies the context of our consciousness of time which is already found present. It throws light back on earlier occurrences which have become a part of our experience already. In the same way, ideas that occur to us throw light on our previous expectations and plans in justifying, fulfilling, modifying, or disappointing and thwarting them. Thus the contingent event always enters already into a context of experience or tradition…. The future, beginning in the present happenings, is thus the origin of the perspective in which the past occurrences are put by every new experience.”

Worldviews and Paradigm Shifts
It is perhaps a truism that we tend to find what we’re looking for by screening out any and all potential elements which do not fit the pattern of our expectation. Arguably, the scientific method may be said inherently to suffer exposure to potential danger from this side, as suggested in the above remarks. Indeed, Schröedinger’s theory of wavefunction seems to predict this. Consider these remarks from Stephen M. Barr [Modern Physics and Ancient Faith, 2003]:

“In quantum theory, as traditionally formulated, there are ‘systems’ and ‘observers.’ Or rather, in any particular case, there is the system and the observer. The observer makes measurements of the system. As long as the system is undisturbed by external influences (that is, as long as it is ‘isolated’), its wavefunction — which is to say its probability amplitudes — will evolve in time by the Schröedinger equation…. However, when a measurement is made of the system the observer must obtain a definite outcome. Suddenly, the probability for the outcome that is actually obtained is no longer what the mathematics said it was just before the measurement, but jumps to 100 percent. And the probabilities for all the alternative outcomes, the ones that did not occur, fall to 0 percent.”

Thus we might say that the “reality” we humans experience ever involves “a moving goal-post.” And as the mover of this goal-post, the human agent is most indispensably involved in this process.

Faced with such “indeterminacy” regarding the foundations of experience, it is not surprising that people usually have recourse to mediating worldviews, or organized frames of ideational reality that constitute the conceptual space in which active experience is engaged and accordingly analyzed and interpreted. Certainly Plato has offered such a model. And so has Nobel laureate Jacques Monod [in Chance and Necessity, 1971]:

“Chance alone is the source of every innovation, of all creation in the biosphere. Pure chance, absolutely free but blind, is at the very root of the stupendous edifice of evolution. The central concept of biology … is today the sole conceivable hypothesis, the only one compatible with observed and tested fact. All forms of life are the product of chance….”

Needless to say, these two models are polar opposite conceptualizations. Yet having received each on “good authority,” which do we choose?

Such are not idle considerations; for as James Hannam points out [“The Development of Scientific and Religious Ideas,” 2003], “grand theories … often suffer death by detail where it is found that up close the situation is too complicated for the theory to handle…. [Yet] in the end, after it has changed the course of the river of enquiry, the theory can end up as a mortlake cut off from the general flow….”

Hannam cites historian Thomas Kuhn, who documents an historical process he terms “paradigm shift,” describing a situation in which the findings of authoritative science move “out of science and into practically every other field of human endeavor.” Once a given, albeit partial or even defective theory becomes “dominant,” writes Hannam, “far from being thrown out, a falsified theory is enhanced to deal with new information until such time as it finally collapses under the weight of anomalous results. Then, after a chaotic period, a new theory emerges that can deal with the anomalies and normal service resumes…. A paradigm refers to but one field, say classical mechanics or health policy whereas the ideology/worldview is the general background that underpins all the paradigms.”

The worldview (or ideology, if you prefer), for better or worse, implicitly shapes the background knowledge of thinking agents to which new experiences constantly are being conformed. Hannam says that worldview “is often so deeply embedded in the psyche that it is very rarely considered explicitly except by specialists,” but that nonetheless, “the worldview is seen as [a] self-confirming fact of life and hence it is not strictly rational…. The existence of a dominant worldview does not mean that a particular individual is unable to think outside the box but rather that his ideas are unlikely to fall on fertile ground. Unless new ideas can be stated in a language that makes them comprehensible to his peers, his intention in writing will not be met.”

Which is the not-too-subtle way to put the fact that every man has a worldview, without exception, whether articulate or inarticulate; and that somehow, for the “intention of writing to be met” — that is, for accurate and meaningful (i.e., successful) communication of ideas to take place — some deeper, common ground of shared truth must first be accessed, for the purpose of providing a more capacious intellectual space in which the human pursuit of knowledge and wisdom might unfold or evolve from its present point of attainment.

But where today in our modern world is such a common ground or field to be found? Hannam proposes the examination of the history of ideas as a possibly useful method in the search for common ground. He writes,

“To examine the history of ideas the only fair way to proceed would seem to place before ourselves the evidence and authority that the historical agents had before them and assume they acted rationally on that basis. Otherwise, there is no hope of ever tracing intellectual development because ‘cause and effect’ assumes some sort of logical causality that is impossible with non-rational agents. The best that could be hoped for would be a catalog of mental positions, with no way to say how one led to another except by being pushed by blind exterior forces. This might be precisely what determinists are advocating but they would have to give up any hope of finding causes and restrict themselves to explanations.”

Perhaps we moderns would do well to reconsider the common assumption that people living before our own time were somehow inferior in knowledge, experience, and observational powers as compared with our own status as enlightened individuals. Arguably, the ancient world produced some of the most powerful thinkers in the history of mankind, formulating ideas that were, in the words of Hannam, “the fruits of unfettered metaphysical speculation that inevitably hits on the right answer occasionally.”

Democritus, for example, proposed a theory predicting the atom as the ultimate constituent of matter, more than two-thousand years before the technical means existed to isolate atoms experimentally or, as Hannam notes, any “useful applications for them” could be found. Then it was discovered that the atom itself is an ordered constellation of even finer parts. There seems to be an historical progression of ideas here, the new building up on a framework originally laid up in the past, modifying it, improving on it in light of new insights and technical capabilities.

Hannam gives another example of more recent vintage: “Copernicus needed Nicole Oresme’s solution as to why we do not feel the movement of the Earth even though in Oresme’s time it was just a curiosity as no one thought the Earth actually was moving … each new idea, once accepted, shifts the boundaries of the worldview and makes it possible for further new ideas to be accepted into the pale.”

We can extend the examples even further. Reimann constructed a geometry, apparently because his mind could grasp the logic and beauty it revealed for its own sake. But at the time, it had no apparent “external referent” in the field of nature. It was a beautiful and glorious abstraction — until Einstein came along, and picked it up “off the shelf” as it were, to become the very language of relativity theory.

Thus it might be said that the evolution or “progress” of science depends on successive enlargements of the conceptual space it requires to do its work. In other words, science inherently is a participation in the historicity of the world.

Whatever our personal worldview, perhaps it would be well to recall that science is an historical process. Perhaps this understanding could open up additional, needed conceptual space that science itself requires in order to advance.


TOPICS: Philosophy
KEYWORDS: aquinas; augustine; christianity; churchhistory; contingency; cosmology; epistemology; justinmartyr; metaphysics; newton; ontology; plato; quantumfieldtheory; relativitytheory; schroedinger; spacetime; theology
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To: Physicist; betty boop; cornelis; marron; js1138; PatrickHenry; Doctor Stochastic; tortoise; ...
Thank you for your reply!

Unclear. Do you mean "what is life, in natural systems as they exist in fact today," or "what is life, in natural systems as they have ever existed in fact," or "what is life, as it could exist in natural systems in principle"? We can't answer the first question, and then dismiss the abiogenesis question as if that first answer also satisfies the second and third questions.

We are speaking to life, in natural systems as they exist in fact today from the level of our minds, senses and sight - or higher, with regard to the universe.

We are not looking downward to constituent continuums of inorganic corpuscles, fields or geometry. We are not looking backward in time as to how such life came to be. We are not looking forward in time as to how it might be simulated.

The principles of natural life are on the table to the extent they are within the reach of our minds.

The entire inquiry of abiogenesis is erased from our blackboard because it is a waste of time. IOW, many here have already said the result would be "idle speculation" on the grounds of the fallacy of quantizing the continuum. So why bother?

Obvious, yes. And likewise, only an arrant fool would suggest that there's any difficulty in separating snakes from lizards. But again, there is no definition of "snake" that will unambiguously separate snakes from lizards at all times in the past, no matter how self-evident the distinction is today.

Again, we are not looking for a definition of life which would apply backwards in time or to lower tiers of continuum. We are looking at the level of our vision and minds, here and now, and only with regard to natural life.

The "snake/lizard and continuum of the geologic record" item is quite interesting in that it explores the fallacy of quantizing the continuum and the theory of evolution. But we are trying to keep any discussions of evolution off this thread because they tend to become confrontational. This thread, on the other hand, is characterized by mutual respect and a sincere desire to understand one another and the questions before us.

It doesn't seem to me that viruses meet this definition. If they do, then I submit that many computer programs and chain letters also do.

I was giving a shorthand summary of betty boop's post at 753. In context of the exanded verbiage on her post, manufactured intelligence with today's technology would fail Bauer's characterization on various points (thermodynamics, sensitiviity, etc.)

821 posted on 01/17/2005 9:34:59 AM PST by Alamo-Girl
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To: betty boop; PatrickHenry; Physicist; js1138; tortoise; Doctor Stochastic; StJacques; ...
Again the metaphor returns to me of scientists fumbling with keys convinced that one of them will fit the lock all the while not actually looking at the lock itself; perhaps if they did they would notice it is a combination lock.

Thank you for all of your posts which ever encourage us to look!

822 posted on 01/17/2005 9:42:47 AM PST by Alamo-Girl
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To: StJacques

Oh, my goodness - how rude of me! As I was going through some of my older pings, I just now realized that I forgot to follow up on your response here in # 525 to my questions. I don't have time to get to it right now, but wanted to let you know that I will hopefully get the time to make my reply to your post later on today.


823 posted on 01/17/2005 10:04:46 AM PST by Matchett-PI (Today's DemocRATS are either religious moral relativists, libertines or anarchists.)
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To: Alamo-Girl
I am truly amazed that the question of ”what is life?” meets with such obfuscation.

I would call it clarification rather than obfusction. Your (and Betty's)examples of live vs dead have been rigged to make the question seem absurd, but the question isn't absurd.

You have presented us with two quite different criteria for distinguishing life from non-life. One is abstract and relies on structure and behavior; the other depends on the history of the object (is it natural?).

What would be the status of an entity that looks and behaves like a bacteria, but which is manufactured from "non-living" materials and which utilizes amino-acids not found in "natural" living things?

What would be that status of an albatros whose heart hs not beaten in the last 30 seconds?

824 posted on 01/17/2005 10:06:55 AM PST by js1138 (D*mn, I Missed!)
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To: js1138; betty boop; PatrickHenry; Physicist; Doctor Stochastic; tortoise; marron; cornelis; ...
Thank you for your reply!

Your (and Betty's)examples of live vs dead have been rigged to make the question seem absurd, but the question isn't absurd.

Neither betty boop nor I are "rigging" the question or making the question "absurd".

At least as early as Pearson it became a question for science. Bauer addressed the question through scientific observations. Pattee asked the same question from the aspect of physics and noted the lack of interest by biologists. Schneider's work in molecular biology for cancer research points to a clear distinction based on Shannon-Weaver.

You have presented us with two quite different criteria for distinguishing life from non-life. One is abstract and relies on structure and behavior; the other depends on the history of the object (is it natural?).

We presented both, but they are not either/or. The Shannon model allows us to measure information in laboratory conditions so that natural life (if you accept the Shannon derived definition) can be objectively and scientifically detected - and it does not conflict with Bauer's characterizations.

What would be the status of an entity that looks and behaves like a bacteria, but which is manufactured from "non-living" materials and which utilizes amino-acids not found in "natural" living things?

Again, we are only looking at the here-and-now, not the future possibilities. The closest thing you have in the here-and-now is the laboratory manufacture of the polio virus, which was indeed alive. It was however made from existing natural life (Shannon definition) and thus there is no bright line distinction.

What would be that status of an albatros whose heart hs not beaten in the last 30 seconds?

Truly, I'm not sure whether a 30 second pause in communications of the molecular machinery of the albatros' heart would be sufficient to preclude subsequent communications (reduction of uncertainty of a receiver, a molecular machine in going from a before state to an after state). If so, that molecular machinery is dead - and the lack of successful communications would likely spread to the interrelated molecular machinery comprising the bird, causing the death of the global organism, the bird.

In humans, a myocardial infarction will result in cell death (no more cellular successful communications) in certain physical areas of the heart. If successful communications within the molecular machinery can continue at the reduced rate, the machinery will eventually route blood flow around the dead cells and continue functioning, i.e. successfully communicating, reduction of uncertainty in the receiver, in molecular machines going from a before state to an after state.

It's when the communication ceases in the entire molecular machinery, that it may (if the function of the molecular machine is vital) spread to other molecular machinery and death of the globally governing organism, the man, ensues. IOW, the body of the man reaches the point where none of the vital molecular machinery communcates.

The definition of what is "vital" molecular machinery determines the legal and clinical definition of "death". Currently I believe the definition hinges on the heart, i.e. a person can be brain dead and nevertheless clinically alive because the heart continues with assistance of a respirator simulating the machinery of the brain for that particular molecular machinery, i.e. forcing air into/out of the lungs rather than communicating to the lungs to expand/contract.

825 posted on 01/17/2005 11:06:42 AM PST by Alamo-Girl
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To: Alamo-Girl

I'm curious what it would take o have something that was not made from existing natural life. Are you referring to the blueprint? Is anything that copies an existing structure automatical natural? Are you referring to the manufacturing machinery?

What specifically is it that makes something natural?


826 posted on 01/17/2005 12:23:39 PM PST by js1138 (D*mn, I Missed!)
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To: Alamo-Girl

I am not trying to hijack the thread or divert it into a ditch. I was pinged to it at a point where a question that is interesting to me was being posed.

It seems to me that to have a conversation you need to agree on basic torms, or at least pause while those definitions are being considered. I am not aware of any universally accepted definition of life. I would say that your proposed definitions are valuable subsets of such a definition, but are not exhaustive. In particular, they fail to distinguish between natural and synthetic in cases where the history is unknown. They also fail to distinguish hard cases, such as those presented by prions, viruses, and bacterial spores.

There is no particular reason to have an elaborate and abstract definition of life to distinguish complex living organisms from dead tissue. The need for a definition arises in hard cases, such as those presented by the prospect of laboratory biogenesis, or the prospect of cybernetic intlligence. A definition must necessarily be free of historical context, because history makes the definition unnecessary.


827 posted on 01/17/2005 12:47:15 PM PST by js1138 (D*mn, I Missed!)
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To: js1138; betty boop; PatrickHenry; Physicist; Doctor Stochastic; tortoise; cornelis; marron; ...
Thank you for your reply!

I'm curious what it would take o have something that was not made from existing natural life. Are you referring to the blueprint? Is anything that copies an existing structure automatical natural? Are you referring to the manufacturing machinery?

In the polio virus example, naturally existing biological life was used for parts and medium in its manufacturer in a test tube. At the root, the organism was naturally alive as would be a cloned sheep, an organism with altered DNA, a man with a heart transplant or a brain dead person on a respirator.

In your next post, you said:

I am not aware of any universally accepted definition of life. I would say that your proposed definitions are valuable subsets of such a definition, but are not exhaustive.

If you have a more exhaustive definition, I'd certainly like to hear it!

I am not aware of any universally accepted definition of life. I would say that your proposed definitions are valuable subsets of such a definition, but are not exhaustive. In particular, they fail to distinguish between natural and synthetic in cases where the history is unknown. They also fail to distinguish hard cases, such as those presented by prions, viruses, and bacterial spores.

The Shannon definition clearly includes all life cycles and forms: viruses, bacteria, spores and prions (a single cell lifeform). In particular, the Shannon information definition helps us to understand miscommunication of prions and viruses and noise in the channel that can cause mutations, cancers, etc. AFAIK, there is no more elegant or useful definition of life v non-life/death than Shannon information.

There is no particular reason to have an elaborate and abstract definition of life to distinguish complex living organisms from dead tissue. The need for a definition arises in hard cases, such as those presented by the prospect of laboratory biogenesis, or the prospect of cybernetic intlligence.

The Shannon definition is not abstract or elaborate, it is the mathematics of communications. The purpose of a definition goes to biology, medicine, cosmology, physics, philosophy, theology as well as artificial intelligence.

A definition must necessarily be free of historical context, because history makes the definition unnecessary.

Causation seems to be a stumbling block for you though it is not part of the question at all. On the previous post you asked:

What specifically is it that makes something natural?

It occurs in nature. Nature is the primitive, untouched state of the material world.

If it would help to make the posters more comfortable with the subject, perhaps we could separate the issue of natural life which is involuntary - i.e. not the result of discernible intent other than the indirect desire for sex - from natural life which results from intention - i.e. God as Creator, collective consciousness of the universe, scientists making polio viruses, altering DNA, substituting molecular machinery, etc.

IOW, intention could be raised as subject number "next" after we first answer: "in the natural world, what is life?" unless of course one believes there can be no life without intent.

828 posted on 01/17/2005 1:20:51 PM PST by Alamo-Girl
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To: Alamo-Girl

Prions, viruses and bacterial spores are metabolically stable. At least they do not metabolize.

Am I wrong about this?


829 posted on 01/17/2005 1:27:10 PM PST by js1138 (D*mn, I Missed!)
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To: js1138
As I recall, spores do indeed metabolize and viral metabolization is a symbiosis with its host. I believe the virus model is akin to prion metabolism.

In any case, the Shannon-Weaver model works well to integrate their life cycle with the host, i.e. as a miscommunication. Metabolism is not a factor in Shannon-Weaver.

830 posted on 01/17/2005 1:41:21 PM PST by Alamo-Girl
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To: Alamo-Girl
Metabolism is not a factor in Shannon-Weaver.

Rats. I should have explained.

The Shannon-Weaver does not concern itself at all with the value of the message itself - only the mathematics of the communication. Whether the message tends to health or mad cow disease - the math is the same.

831 posted on 01/17/2005 1:43:55 PM PST by Alamo-Girl
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To: Alamo-Girl

Is the "aliveness" of a virus intrinsic, or is it alive only in relation to its host?

Regarding spores, I found this:

"Many bacteria form a single spore when their food supply runs low. Most of the water is removed from the spore and metabolism ceases. Spores are so resistant to adverse conditions of dryness and temperature that they may remain viable even after 50 years of dormancy."

http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/E/Eubacteria.html


832 posted on 01/17/2005 2:59:23 PM PST by js1138 (D*mn, I Missed!)
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To: Alamo-Girl
To be absolutely clear, the question is "in natural systems, what is life?"What is an "unnatural" system? I know that the Greens define everything that isn't human as "natura" and human created objects as pollution. Are not humans and their constructs every bit as natural as anyting else?
833 posted on 01/17/2005 3:18:23 PM PST by Doctor Stochastic (Vegetabilisch = chaotisch is der Charakter der Modernen. - Friedrich Schlegel)
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To: Alamo-Girl
Actually, viruses use a different method from prions.

Viruses feed their own genetic data to a "host" reproducing machine; the host then reproduces the virus. Viruses work by means of normal genetic pathways. People do not (at least I can't find an example) spontaneously generate viral infections.

Prions are just proteins that crystallize differently. Prions do not use genetic mechanisms for infection. Also, unlike viruses, prion-like diseases may form spontaneously in people (and probably other mammals.) The tendency to form prions is genetic; but the prion's infection does not spread by genetic means. If a person is susceptible to prion infection, getting a prion into the relevant tissue (brain, nerve) triggers crystallization sort of like a seed cry stall does in a saturated sugar solution. Prions are (so far) the only infectious agents that do not contain genetic material. This make them hard to de-ativate. Keywords: Creuzfeld-Jacobsen, Scrappie, Alpers, inter alia. Vide.
834 posted on 01/17/2005 3:58:50 PM PST by Doctor Stochastic (Vegetabilisch = chaotisch is der Charakter der Modernen. - Friedrich Schlegel)
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To: Doctor Stochastic; js1138; betty boop; PatrickHenry; tortoise; Physicist; cornelis; marron; ...
Thank y’all so much for your replies and the fascinating links!

But once again I must stress that the Shannon-Weaver model is the mathematics of communications and does not address the value of the message at all. So under Shannon-Weaver it doesn’t matter that prions are only proteins, that mycoplasmas have no cell walls, that viroids are RNA without a protein coat. They fit within the communication model. The model addresses source, message, encoder, channel, decoder, receiver and noise. Noise can result in a miscommunication of an intended message and therefore, a malfunction (or perhaps improvement) in the molecular machine.

The bottom line to Shannon-Weaver is information, the reduction of uncertainty of the receiver in going from a before state to an after state. It is all about communications and all of these “lifeforms” are part of the communications (or miscommunications) in molecular machines.

If we were to proceed down the path of questioning whether the lowly virus, prion and viroid are “alive” – then we would be appealing to definitions of life which make “cuts” based on biochemical boundaries. Such cuts open the door for other types of arguments such as the following:

Evidence for Creation

There are those who see an unbroken continuum between living and nonliving matter. If this is so, the question of life's origin becomes a moot point. Viruses, prions, mycoplasmas, rickettsiae and chlamidiae are offered as examples of organisms that bridge the chasm between living and nonliving. But the differences between living and nonliving matter are in fact so great that this chasm cannot be spanned.

Although viruses and prions are made from biopolymers, they are no more alive than the enzyme additives in some detergents. Viruses are lifeless complexes of proteins and nucleic acids. The biological activity of viruses, including their replication, is completely dependent on the metabolic activity of the infected cell. Prions are unique proteins that alter the structure of certain other proteins. The newly changed proteins in turn acquire prion-type activity, creating a domino effect of protein alteration. This property of prions renders them infectious. For reproduction, prions, like viruses, are wholly dependent on live cells.

Rickettsiae, chlamidiae and mycoplasmas, on the other hand, are among the smallest known living organisms, and are very much alive. The fact that chlamidiae and rickettsiae are obligate intracellular parasites only means that they have serious metabolic deficiencies. A clear distinction between living entities and nonliving substances is essential for a consideration of whether it is possible to go from one state to the other. For this reason we need to descend into the submicroscopic world of matter.

The elemental compositions of living and nonliving matter differ greatly.4 The actual chemical determination of living matter is done on "once-living matter". Before chemists can analyze living matter, they have to take it apart to isolate its individual components, thereby killing it. Thus the actual phenomenon of "life" is not amenable to detailed chemical scrutiny. In the very process of laying hold of isolated "purified" components of living matter, "life" slips out between the chemists' fingers, and what remains is an inert, "lifeless" substance. This is so because living cells are composed of lifeless, nonliving components. The implication is that the difference between life and death is a question of how biomatter is organized. Therefore, it should be possible to reverse the killing of cells by restoring them to their pre-disruption state. Why this has not yet been done in the laboratory will be discussed in the next chapter.

… In presenting a case for a tight logical link between analyzing the molecular aspects of life and the creationist paradigm, it is not enough to enumerate the components of living matter. Simply knowing the components of living matter is not enough to account for its biological activity.

Living matter behaves differently than its isolated components. Living cells incorporate selected substances and utilize them either for energy or as building blocks for growth. They also secrete metabolic waste. Living cells grow and divide into daughter cells. Lastly, when cells recognize unfavorable environmental conditions, they make metabolic adjustments to preserve their existence.1 Living matter gives every indication that it "wants" to stay alive. This is a property of the complex network of components in living matter. The whole seems to be more than the sum of its parts.

If we collect all of the ingredients from live cells, lace them in a membrane-enclosed vesicle, we have an inert, "lifeless" assembly of biomatter. This bag may be stored indefinitely in an environment hospitable for life, without the actual emergence of life. If we periodically analyzed the contents of this artificial "cell", we would find little change in its chemical composition. Such an arrangement of matter is called equilibrium.2

If we sampled the composition of life cells growing in a defined laboratory setting, surprisingly, the results would be similar, that is, we would find the chemical composition of live cells quite constant. But instead of the term "equilibrium", we say that matter in live cells is in a "steady state system". The significant difference between the two is the dynamic flux of matter through live cells.

A mechanical illustration of this difference is shown in Figure 3.1. Here, the contents of both vessels remain unchanged over time, but there is constant movement of liquid through vessel A. The flow of molecules through cells is an essential feature of life. (In contrast, the liquid in container B is stagnant.) The movement of water through a compartment, representing the flux of matter through the cell, is an oversimplification of what actually occurs. In reality matter changes as it travels through the cell. The incoming precursors (biomonomers) are simple substances which are gradually built up to successively more complex structures.

I can certainly understand the desire of some to answer ”in nature, what is life?” by describing the biochemical characteristics.

However, I do not believe that approach is adequate because it does indeed toss prions, viroids and viruses into the non-living bucket whereas they are the channel (or noise) for mutation (or miscommunications) in living systems.

IOW, excluding them from the model for "what is life v non-life/death" also puts the mechanism for evolution off the table – which evidently is the intent of the above article.

Shannon-Weaver, OTOH, does not disturb even the classic model of evolution which I personally find out-of-date, nor does it disturb any of the newer von Neumann based models, nor does it speak yeah or nay to abiogenesis, nor does it preclude either Intelligent Design or Young Earth Creationist. It is ideologically and theologically neutral on top of being elegant.

However, if the consensus here is to go with a biochemical definition - then I'm "game" for trying to nail the characteristics.

835 posted on 01/17/2005 9:39:01 PM PST by Alamo-Girl
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To: Alamo-Girl; js1138; cornelis; marron; PatrickHenry; Doctor Stochastic; tortoise; Physicist; ...
Hello Alamo-Girl!

js1138 writes: I am not aware of any universally accepted definition of life. I would say that your proposed definitions are valuable subsets of such a definition, but are not exhaustive. In particular, they fail to distinguish between natural and synthetic in cases where the history is unknown. They also fail to distinguish hard cases, such as those presented by prions, viruses, and bacterial spores.

To which you replied: If you have a more exhaustive definition, I'd certainly like to hear it!

You can ditto me on that, A-G!!! I just love it: here we have a thread that is unambiguously devoted to the great subject of being (that is, life), and we have to quibble over whether being is natural, or might it be artificial? Quibbles are also raised about the sufficiency of proposed basic qualities or characteristics of life. One is informed that they are useless because they can’t instantly “distinguish [and answer] the hard cases.”

Good grief! It seems to me (and I’m sure many of our friends here will find this controversial) that if the “hard AI” guys want to build an intelligent machine to the standard of von Neumann’s probe then the very first thing they need to do is to figure out how Nature creates a living system.

Actually, I imagine that Bauer’s observations (rigorously, relentlessly reduced to mathematics) about processes and qualities of living systems shed light even on the hard cases — which a person might notice if he’s paying attention.

Since I don’t read German, Russian, or Hungarian – the only languages in which he is published -- Bauer’s work has been translated to me by a friend. The formulae are the same from text to text I gather – ah, mathematics, sublime universal language!!! [More of your “unreasonable effectiveness of math” here, Alamo-Girl!]

But since we have been chasing down phantasms most recently – in particular the by-now famous Fallacy of the Quantized Continuum, as perfect a description of how to arrange an entirely pointless exercise that I can imagine – we’ve wandered far from the original mission.

I think it’s time for course correction. How shall we proceed? You note that Shannon information theory is not concerned (or even interested, it seems), in the “message” being communicated. Ultimately the theory drives to the status of the receiver after the message has been communicated. The communication is said to be “successful” if it produces a “reduction of uncertainty” in the receiver.

We have many possibilities for further discussion here. The first pertains to the sender: the source of the message being communicated; second, the nature, quality, or meaning of the message (its semiotic quality); third, the physical route by which it is transmitted and received; and fourth, what the receiver “does with it” so that communication is successful at the receiver’s end (such that a reduction in uncertainty will occur, facilitating the life interest of the receiver by suitably “informing” its choices. Not very scientifically put; but I think it’s an accurate description).

Where shall we go from here?

Oh, a last thought, though a depressing one. Just a little cite from Levins and Lewontin, 1985:

Evolutionists believe organic evolution to be the negation of physical evolution. **

This statement seems twisted to me. Why these guys think biology is so privileged as to be exempt from the physical processes which make it possible is beyond me. FWIW it seems such models look like very poor candidates for the explication of life. Maybe that’s why some of our friends now tell us “don’t ask” about life (unless it’s artificial life, of course, and then it would be O.K….) on the grounds that we humans can’t tell life and non-life apart, because life is not something that can be observed in the first place, according to the scientific method (???)….

Well, good night dear Alamo-Girl, and good night all! God bless everyone reading these lines.

** Pace Levins and Lewontin; but to me, this statement is inane, and headed straight for anomie at the speed of light.

I can’t imagine, for instance, how it is possible to account for biological evolution without taking the evolution of the physical universe into account. For the “biosphere” appears to be a subsystem of this larger system. And the universe itself has evolved. Physical science tells us that certain “arrangements” very needful to the “contingent” emergence of biological systems occurred in the early universe (living organisms came ever so much later on -- just within the past 4 billion years ago, in a universe whose age is estimated at somewhere around 14 billion).

And so it seems reasonable if a person wishes to speculate about issues of teleology, which we’ll remember is the science of ends, purposes, goals – the very word “evolution” suggests development towards an end, or at the very least to a state “higher” than that achieved at present. (“Higher” also suggests the idea of an “end” in the sense of a rational or objective measure by which something can be adjudged ‘higher” or “lower.”)

836 posted on 01/17/2005 9:59:47 PM PST by betty boop
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To: betty boop; js1138; PatrickHenry; Doctor Stochastic; Physicist; Matchett-PI; D Edmund Joaquin; ...
Thank you so very much for your excellent post!

I had no idea that Bauer's was a mathematical model. For me, the mathematics is the most objective approach - hence, the appeal of Shannon-Weaver. Perhaps we ought to take a closer look at how Bauer expressed his findings mathematically to see if it is a better model.

Math is indeed unreasonably effective, remarkably so with physics. Therefore, when a mathematical model fits, my confidence soars. Conversely, I would always wonder if a non-mathematical answer could be transportable or applied universally.

Or if you'd rather not take up Bauer, we could resume with Schneider and take an exhaustive tour of the Shannon-Weaver model. A basic chart is at post 341. A summary is at post 491. The key formulae are posted between the two.

This statement seems twisted to me. Why these guys think biology is so privileged as to be exempt from the physical processes which make it possible is beyond me. FWIW it seems such models look like very poor candidates for the explication of life. Maybe that’s why some of our friends now tell us “don’t ask” about life (unless it’s artificial life, of course, and then it would be O.K….) on the grounds that we humans can’t tell life and non-life apart, because life is not something that can be observed in the first place, according to the scientific method (???)….

LOLOLOL! Very strange indeed.

And so it seems reasonable if a person wishes to speculate about issues of teleology, which we’ll remember is the science of ends, purposes, goals – the very word “evolution” suggests development towards an end, or at the very least to a state “higher” than that achieved at present. (“Higher” also suggests the idea of an “end” in the sense of a rational or objective measure by which something can be adjudged ‘higher” or “lower.”)

So very true. Perhaps this ought to be the course correction rather than pulling out the magnifying glasses again?

I'm wondering what issues are the most important to other posters and Lurkers...

837 posted on 01/18/2005 12:04:41 AM PST by Alamo-Girl
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To: betty boop; Alamo-Girl
we have to quibble over whether being is natural, or might it be artificial?

...that if the “hard AI” guys want to build an intelligent machine to the standard of von Neumann’s probe then the very first thing they need to do is to figure out how Nature creates a living system.

Actually, whether or not a living system is artificial or natural should be a side issue. As you point out, one of the things we learn from living systems is how to build such a system. In the course of attempting this, we will learn a lot about what the differences are between mechanisms that are "alive" versus those that are not.

At the simplest level, the differences can be fuzzy. But one of the ways we would recognize something as being "alive" is its ability to at least temporarily work against normal entropy, to repair itself and reproduce itself. Without this ability, if we are building them one by one, and repairing them the same way, its just a machine.

At the higher end, we would look at the kinds of things AI would be interested in, which is the mechanism's ability to rewrite portions of its own software set, which would give it some self-directed autonomy. But even at that, even if it had that ability, it would still be a machine if it could not repair and reproduce itself.

838 posted on 01/18/2005 8:26:06 AM PST by marron
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To: betty boop; Alamo-Girl; cornelis; marron; PatrickHenry; Doctor Stochastic; tortoise; Physicist
Evolutionists believe organic evolution to be the negation of physical evolution.

This appears to be another quote mine nugget. I haven't found the quote in context online, but it appears in the usual expected places for out-of-context quotes. Are we back to arguing Second Law stuff?

What do you take this quote to mean?

I'll take a stab at it. It means that living things have, locally, the appearance of violating thermodynamics. I would have to point out that they do this just by living, even if they don't evolve.

I have to say that this thread reminds me of how Chomsky talks about language. He tried to reduce human language to a system of symbols and syntax. He argued that syntax was built into the brain. He opposed the notion that the rules of language were learned. His view is remarkably like the view that life evolves from inner principles without any significant input from selection.

Of course his analysis only works on well formed sentences and completely disregards quirks of language such as connotation.

To get the flavor of how this works, consider a simple statement, "The dog bit John". Where is the information? Suppose there are two listeners or receivers. One has a pet pekinese that is friendly and cuddly. The other receiver is recovering from an attack by a pit bull. Is the information the same for both? Is there any way to know what the message is without having detailed knowledge of the receiver?

I am curious how you can embed information in a system that will evolve properties that are not known in advance. It would seem to me that that the shape of a Wolfram automata cannot be known in advance.

839 posted on 01/18/2005 8:53:13 AM PST by js1138 (D*mn, I Missed!)
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To: js1138; betty boop; tortoise; Physicist; Doctor Stochastic; Matchett-PI; StJacques; marron; ...
Thanks for your post, js1138!

Information is not the value of the message for the very reason you describe. Meaning is derived from context.

Unfortunately, many people have a difficult time separating the two. In common usage, information implies value or meaning. However, in the mathematics of communication --- the "information" in "information theory" --- the value or meaning of a message is not an issue. That is why the Shannon theory is portable to a great many disciplines.

Information is measured as the reduction of uncertainty in the receiver. It is an action, or transaction, not a static "thing".

In the following charts, information is expressed as the structure of the transaction – the arrows between the boxes. The relationships are highly mathematical and bear out in observations of molecular machines:

From the Shannon-Weaver Model

Claude Shannon and Warren Weaver produced a general model of communication:

This is now known after them as the Shannon-Weaver Model…. The Shannon-Weaver Model (1947) proposes that all communication must include six elements:

  • a source
  • an encoder
  • a message
  • a channel
  • a decoder
  • a receiver

These six elements are shown graphically in the model… The emphasis here is very much on the transmission and reception of information. 'Information' is understood rather differently from the way you and I would normally use the term, as well. This model is often referred to as an 'information model' of communication.

Shannon (as applied to molecular information theory): A Glossary for Molecular Information Theory and the Delila System

information: Information is measured as the decrease in uncertainty of a receiver or molecular machine in going from the before state to the after state.

"In spite of this dependence on the coordinate system the entropy concept is as important in the continuous case as the discrete case. This is due to the fact that the derived concepts of information rate and channel capacity depend on the difference of two entropies and this difference does not depend on the coordinate frame, each of the two terms being changed by the same amount." --- Claude Shannon, A Mathematical Theory of Communication, Part III, section 20, number 3

Information is usually measured in bits per second or bits per molecular machine operation.

molecular machine: The definition given in Channel Capacity of Molecular Machines is:

1. A molecular machine is a single macromolecule or macromolecular complex.
2. A molecular machine performs a specific function for a living system.
3. A molecular machine is usually primed by an energy source.
4. A molecular machine dissipates energy as it does something specific.
5. A molecular machine `gains' information by selecting between two or more after states.
6. Molecular machines are isothermal engines.


840 posted on 01/18/2005 9:42:24 AM PST by Alamo-Girl
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