Home » Intelligent Design » ID Foundations » ID Foundations, 12: “Additionality,” Paley’s self-replicating watch, the von Neumann Self-Replicator [vNSR] and the inference to design

ID Foundations, 12: “Additionality,” Paley’s self-replicating watch, the von Neumann Self-Replicator [vNSR] and the inference to design

A modern watch movement, an example of both functionally specific, complex organisation and associated information and of the commonly encountered irreducible complexity of well-matched core functional parts in a system

The Wikipedia hit-piece on Intelligent Design (NWE’s introductory article is much fairer and better informed) leads with an illustration of a watch; an invidious allusion to William Paley’s famous parable of stumbling over a stone in a field vs. finding a watch in the same field, that appears in Ch I of his 1802 [- 6 ] Natural Theology:

>>IN crossing a heath, suppose I pitched my foot against a stone, and were asked how the stone came to be there, I might possibly answer, that for any thing I knew to the contrary it had lain there for ever; nor would it, perhaps, be very easy to show the absurdity of this answer. But suppose I had found a watch upon the ground, and it should be inquired how the watch happened to be in that place, I should hardly think of the answer which I had before given, that for any thing I knew the watch might have always been there. Yet why should not this answer serve for the watch as well as for the stone; why is it not as admissible in the second case as in the first? . . . >>

He continues:

For this reason, and for no other, namely, that when we come to inspect the watch, we perceive—what we could not discover in the stone—that its several parts are framed and put together for a purpose, e. g. that they are so formed and adjusted as to produce motion, and that motion so regulated as to point out the hour of the day; that, if the different parts had been differently shaped from what they are, or placed after any other manner or in any other order than that in which they are placed, either no motion at all would have been carried on in the machine, or none which would have answered the use that is now served by it.

This is of course, an invitation to the argument by inference to best explanation of empirical observations.

However, it is usually dismissed today as an example of the weakness of attempts to argue by analogy (itself an error, credible analogy is a key facet of real world inductive argument, the cornerstone of science), and the issue put on the table in rebuttal is usually that unlike watches, living things can self-replicate at cellular level, and reproduce with variation, thus evolve. Problem solved, nothing to see here, let us move on.

Not so fast, this dismissal argument is a strawman fallacy.

A strawman?

Yes, Paley’s actual argument has been cut off at a rhetorically convenient point. For, Ch I is titled: “State of the Argument,” and Ch II, “State of the Argument Continued,” and in this chapter (both are fairly short), Paley goes on to discuss precisely the case of a suggested self replicating, time-keeping watch.

Emphasising to draw attention to key steps:

Suppose, in the next place, that the person who found the watch should after some time discover that, in addition to all the properties which he had hitherto observed in it, it possessed the unexpected property of producing in the course of its movement another watch like itself – the thing is conceivable; that it contained within it a mechanism, a system of parts — a mold, for instance, or a complex adjustment of lathes, baffles, and other tools — evidently and separately calculated for this purpose . . . .
The first effect would be to increase his admiration of the contrivance, and his conviction of the consummate skill of the contriver. Whether he regarded the object of the contrivance, the distinct apparatus, the intricate, yet in many parts intelligible mechanism by which it was carried on, he would perceive in this new observation nothing but an additional reason for doing what he had already done — for referring the construction of the watch to design and to supreme art . . . . He would reflect, that though the watch before him were, in some sense, the maker of the watch, which, was fabricated in the course of its movements, yet it was in a very different sense from that in which a carpenter, for instance, is the maker of a chair — the author of its contrivance, the cause of the relation of its parts to their use.
[Emphases added. (Note: It is easy to rhetorically dismiss this argument because of the context: a work of natural theology. But, since (i) valid science can be -- and has been -- done by theologians; since (ii) the greatest of all modern scientific books (Newton's Principia) contains the General Scholium which is an essay in just such natural theology; and since (iii) an argument's weight depends on its merits, we should not yield to such “label and dismiss” tactics. It is also worth noting Newton's remarks that thus much concerning God; to discourse of whom from the appearances of things, does certainly belong to Natural Philosophy [i.e. what we now call “science”].” )]

In short, we can see how Paley anticipated Peirce’s reasoning by inference to best explanation by almost a century, and how he raises the key issue of the implications of an object having a functionality and the ADDITIONAL facility of self-replication.

He was of course a generation too early to have the benefit of Babbage’s investigations of digital, stored program computers, but a bar of cams and a stepper to control operations, is just as much a program as anything we have in our computers today.  So, he rightly raised the issue that if an object has its own function and the additional facility of replicating itself, that intricately complex additionality demands a proper explanation, one that fits in with what we empirically and analytically know of  the credible source of such capabilities.

That brings us to Austrian-American mathematician, John von Neumann, and his 1949 proposal of a kinematic self-replicating machine [vNSR], with the associated issue of the significance of complex, coded, symbolic, algorithmic information in information-processing machines:

A von Neumann kinematic self-replicator

Following von Neumann generally, such a machine capable of doing something of interest with an additional self-replicating facility uses . . .

 

(i) an underlying storable code to record the required information to create not only (a) the primary functional machine [[here, a Turing-type “universal computer”] but also (b) the self-replicating facility; and, that (c) can express step by step finite procedures for using the facility;

 

(ii) a coded blueprint/tape record of such specifications and (explicit or implicit) instructions, together with

 

(iii) a tape reader [[called “the constructor” by von Neumann] that reads and interprets the coded specifications and associated instructions; thus controlling:

 

(iv) position-arm implementing machines with “tool tips” controlled by the tape reader and used to carry out the action-steps for the specified replication (including replication of the constructor itself); backed up by

 

(v) either:

 

(1) a pre-existing reservoir of required parts and energy sources, or

 

(2) associated “metabolic” machines carrying out activities that as a part of their function, can provide required specific materials/parts and forms of energy for the replication facility, by using the generic resources in the surrounding environment.

 

(vi) Also, parts (ii), (iii) and (iv) are each necessary for and together are jointly sufficient to implement a self-replicating machine with an integral von Neumann universal constructor.

(vii) That is, we see here an irreducibly complex set of core components that must all be present in a properly organised fashion for a successful self-replicating machine to exist. [[Take just one core part out, and self-replicating functionality ceases: the self-replicating machine is irreducibly complex (IC).].

(viii) This irreducible complexity is compounded by the requirement (i) for codes, requiring organised symbols and rules to specify both steps to take and formats for storing information, and (v) for appropriate material resources and energy sources.

 

(ix) Immediately, we are looking at islands of organised function for both the machinery and the information in the wider sea of possible (but mostly non-functional) configurations. In short, outside such functionally specific — thus, isolated — information-rich hot (or, “target”) zones, want of correct components and/or of proper organisation and/or co-ordination will block function from emerging or being sustained across time from generation to generation. So, once the set of possible configurations is large enough and the islands of function are credibly sufficiently specific/isolated, it is unreasonable to expect such function to arise from chance, or from chance circumstances driving blind natural forces under the known laws of nature.

 

Further, let us consider a tape of 1,000 bits (= 125 bytes), which is plainly grossly insufficient to specify the parts and instructions for a von Neumann replicator.
However, the number of possible configurations of 1,000 bits is 1.07 * 10^301, more than ten times the square of the 10^150 states the 10^80 atoms of our observed universe would take up across a reasonable estimate of its lifespan. So, viewing our observed universe as a search device, it would scan less than 1 in 10^150th part of even so “small” a configuration space.

 

That is, it would not carry out a credible “search” for islands of function, making such islands sufficiently isolated to be beyond the reasonable reach of a blind search. Leaving intelligent search as the credible best explanation.
But also, this is in a context.
 

 

For, while our technology has not been able as yet to create such a three-dimensional, real world self-replicator [[as opposed to computer cellular automaton models], in fact such devices are common: the living cell.

 

On the role played by mRNA, tRNA and Ribosomes in such cells, Merkle notes:

 

We can view a ribosome as a degenerate case of [[a Drexler] assembler [[i.e. a molecular scale von Neumann-style replicator]. The ribosome is present in essentially all living systems . . . It is programmable, in the sense that it reads input from a strand of messenger RNA (mRNA) which encodes the protein to be built. Its “positional device” can grasp and hold an amino acid in a fixed position (more accurately, the mRNA in the ribosome selects a specific transfer RNA, which in its turn was bound to a specific amino acid by a specific enzyme). The one operation available in the “well defined set of chemical reactions” is the ability to make a peptide bond [[NB: This works by successively “nudging” the amino acid-armed tip of the codon- matched tRNA in the ribosome's A site to couple to the amino acid tip of the preceding tRNA (now in the P site) and ratcheting the mRNA forward; thus elongating the protein's amino acid chain step by step] . . . . [[T]he ribosome functions correctly only in a specific kind of environment. There must be energy provided in the form of ATP; there must be information provided in the form of strands of mRNA; there must be compounds such as amino acids; etc. etc. If the ribosome is removed from this environment it ceases to function.

[[Self Replicating Systems and Molecular Manufacturing, Xerox PARC, 1992. (Parentheses, emphases and links added. Notice as well how the concept of functionally specific complex information naturally emerges from Merkle's discussion.)]

 

That is: in living cells DNA strands of typically 100,000 to billions of four-state elements provide a “tape” that is transcribed and read in segments as required, by molecular machines in the cell and is also used to carry out metabolic activity: creating and organising the proteins and other molecules of life, which carry out its functions.
This can be illustrated:

The step-by-step process of protein synthesis, controlled by the digital (= discrete state) information stored in DNA

Focussing on the ribosome in action based on mRNA as a control tape:

The Ribosome, assembling a protein step by step based on the instructions in the mRNA "control tape"

Video (HT BA 77 & UD News):

embedded by Embedded Video

vimeo DirektProtein Synthesis from Vuk Nikolic

 

We are clearly seeing a digital communication system, fitting in the generic framework for such systems:

A framework model for digital, symbolic, code-based communication systems (based on the widely used model championed by Shannon in 1948)

In particular, the correlation between encoder and decoder implies purpose and foresight, manifested in symbolic representation.

 

If anything is, this is a signature of intelligent design.

 

As, our use of textually coded language, the libraries of the world and the Internet all jointly testify. There simply are no credible cases of lucky noise creating digitally coded, functionally specific complex information and/or associated functional organisation beyond 500 – 1,000 bits; but we have ever so many directly observed cases of intelligences doing such.

 

(NB: If one wants to inject “human” into intelligence as an objection here, then please answer to the case of the Beaver and dam-building.  The latest response to the commonly encountered notion that Genetic Algorithms create functional information out of such noise and the magic of selection, is answered here.  And, as the original post in that thread highlights, Hoyle’s objection does not start at the level of a tornado creating a Jumbo Jet out of a junkyard full of parts, just one instrument on its panel is enough, and even the task of fitting and screwing bolt to matching nut tightly is a hard enough task to be a challenge.)

 

And, the configuration space specified by just 100,000 four-state elements has 9.98 * 10^60,205 possible states. (Also, the whole observed universe, across its thermodynamically credible lifespan can only have about 10^150 atomic level, Planck-time states. )

 

Thus, we see a needle-in-a-haystack challenge, which becomes an insuperable task even with so unrealistically small a blueprint as 1,000 bits. So, it is at least plausible that cell based life is an artifact of design — a conclusion that is very unwelcome in the Lewontinian materialist camp.

Now, a common attempted rebuttal or dismissal to such reasoning is to claim that spontaneous, natural chance variation [[e.g. through mutations] and natural selection work together to create new functional biological information, so that chance alone does not have to do it all in one step. In Dawkins’ terms, there is alleged to be an easy, step- by- step path up the back slope of “Mt Improbable.” But, this is an error, as quite plainly the claimed source of novel biological information is the variation, not the selection. For, as Darwin himself pointed out in the introduction to Origin, “any being, if it vary however slightly in any manner profitable to itself . . . will have a better chance of surviving, and thus [[will] be naturally selected.”

However, if there is no new function that comes from natural variation – and, for the very first life form, this must include replication capacity itself (with the above requisites as analysed by von Neumann) — no natural selection of advantageous variation will be possible. That is, CULLING-OUT of inferior varieties based on their relative disadvantage in an environment cannot – thus, does not – explain or cause the ORIGIN of the varieties and of their underlying genetically coded biological information.
Let’s refocus: the cell uses coded, algorithmic – thus symbolically representative – information.  
But, nothing in the direct working of the four fundamental physical forces (strong and weak nuclear, electromagnetic and gravitational) provides a base for the origin of sets of symbols and rules for interpreting and applying them through abstractly representing objects and/or actions on those objects.
In short, the origin of metabolising, self-replicating cells that use symbolic representation in both metabolism and in self-replication is best explained on design, per what we do empirically and analytically know about the origin of complex, symbolically functional entities.

 

So, even if from the point of origin of a living cell, all were to proceed by descent with modification, driven by chance variations of whatever type and culling out of some of that variability by differential reproductive success, we would have excellent reason to infer to the design of cell-based life.

But the story does not end here.

When we consider the best explanation for complex multicellular organisms organised on the various body plans, we run into the challenge of explaining how a zygote or equivalent replicates itself, then specialises to spatially organise an entity that manifests a complex, tightly functionally integrated body plan; in the case of organisms that undergo metamorphosis, two body plans in a given lifespan.

Meyer, in his 2004 PBSW article (which — contrary to any number of politically correct dismissal attempts — evidently passed proper peer review by “renowned scientists”) highlights why:

In order to explain the origin of the Cambrian animals, one must account not only for new proteins and cell types, but also for the origin of new body plans . . . Mutations in genes that are expressed late in the development of an organism will not affect the body plan. Mutations expressed early in development, however, could conceivably produce significant morphological change (Arthur 1997:21) . . . [but] processes of development are tightly integrated spatially and temporally such that changes early in development will require a host of other coordinated changes in separate but functionally interrelated developmental processes downstream. For this reason, mutations will be much more likely to be deadly if they disrupt a functionally deeply-embedded structure such as a spinal column than if they affect more isolated anatomical features such as fingers (Kauffman 1995:200) . . . McDonald notes that genes that are observed to vary within natural populations do not lead to major adaptive changes, while genes that could cause major changes–the very stuff of macroevolution–apparently do not vary. In other words, mutations of the kind that macroevolution doesn’t need (namely, viable genetic mutations in DNA expressed late in development) do occur, but those that it does need (namely, beneficial body plan mutations expressed early in development) apparently don’t occur.

In short, the concept that we can expect “lucky noise” to write complex, functionally sophisticated, tightly integrated development algorithms for organisms — whether the first cell-based life or more complex multicellular ones including ourselves, is patently a materialist fantasy imposed by redefining science on materialistic premises, not an empirically warranted observation.

And so, Paley’s closing words from Ch I are apt:

Neither, lastly, would our observer be driven out of his conclusion or from his confidence in its truth, by being told that he knew nothing at all about the matter. He knows enough for his argument; he knows the utility of the end; he knows the subserviency and adaptation of the means to the end. These points being known, his ignorance of other points, his doubts concerning other points, affect not the certainty of his reasoning. The consciousness of knowing little need not beget a distrust of that which he does know.

Summing up, it seems that we have a situation where an empirical mechanism for variation and adaptation to niches in environments within existing body plans, has been extrapolated beyond all observational evidence and warranted reason, into a grand mythology of the spo9ntaneous origin of life and of its elaboration based on the alleged powers of lucky noise to write new information incrementally.

The answer to such a priori materialist speculation imposed under the colours of “science” is simple: first, kindly lay aside dismissive, atmosphere-poisoning rhetoric, then empirically demonstrate — with replicability — body plan level macroevolution, on chance variation and differential reproductive success, not philosophical a priorism-loaded extrapolations of variations within the island of function stipulated by an already existing body plan.

Sad to say, after 150 years — despite many confident headlines to the contrary — this challenge has yet to be adequately met. END

  • Delicious
  • Facebook
  • Reddit
  • StumbleUpon
  • Twitter
  • RSS Feed

4 Responses to ID Foundations, 12: “Additionality,” Paley’s self-replicating watch, the von Neumann Self-Replicator [vNSR] and the inference to design

  1. F/N: I plainly was sleepy; I have added a bit more detail from Paley’s argument.

  2. Kairosfocus, though this is a lot of detail packed into one minute, I think you will really enjoy this new molecular animation:

    Protein Synthesis – video – November 2011
    http://vimeo.com/31830891

  3. BA: Quite detailed, indeed, and of course this expands on what is happening in the ribosome, per the above original post. Complex, purposeful arrangement of parts, and carrying out a code-based function. KF

  4. F/N: With kind help of News & UD’s web master (and HT BA 77), I have added Vuk Nikolic’s video to the OP; which shows the protein synthesis process in unprecedented details for a commonly accessible video. This fills in the details in the two diagrams just above it. The significance of seeing an accurate simulation of the actual algorithmic, step by step, symbolic code process unfolding “live” should not be underestimated. KF

Leave a Reply