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The sequence of bases in DNA operates as a true code in that it contains the information necessary to build a protein expressed in a four-letter alphabet of bases which is transcribed to mRNA and then translated to the twenty-amino-acid alphabet necessary to build the protein. Saying that it is a true code involves the idea that the code is free and unconstrained;
The use of a formal code to accomplish a purpose requires the receiver of the code to understand the rules and the meaning of the symbols, and be able to use the information received to accomplish a task. In the language of information science, the code must have a syntax and semantics. For the communication of information, the receiver must be in possession of that syntax and semantics, and possibly also a cipher to be able to decode the information. The receiver must also be able to carry out the task communicated.
[P]eople often talk about DNA as a kind of programming language, and they mean it sort of loosely, as some kind of metaphor, and we all know about that metaphor. It’s especially used a lot, I think, in evo-devo. But it’s a very natural metaphor, because there are lots of analogies. For example, people talk about computer viruses. And another analogy is: there is this sort of principle in biology as well as in the software world that you don’t start over. If you have a very large software project, and it’s years old, then the software tends to get complicated. You start having the whole history of the software project in the software, because you can’t start over… You … can try adding new stuff on top…
So the point is that now there is a well-known analogy between the software in the natural world and the software that we create in technology. But what I’m saying is, it’s not just an analogy. You can actually take advantage of that, to develop a mathematical theory of biology, at some fundamental level…
Here’s basically the idea. We all know about computer programming languages, and they’re relatively recent, right? Fifty or sixty years, maybe, I don’t know. So … this is artificial digital software – artificial because it’s man-made: we came up with it. Now there is natural digital software, meanwhile, … by which I mean DNA, and this is much, much older – three or four billion years. And the interesting thing about this software is that it’s been there all along, in every cell, in every living being on this planet, except that we didn’t realize that … there was software there until we invented software on our own, and after that, we could see that we were surrounded by software…
So this is the main idea, I think: I’m sort of postulating that DNA is a universal programming language. I see no reason to suppose that it’s less powerful than that. So it’s sort of a shocking thing that we have this very very old software around…
So here’s the way I’m looking at biology now, in this viewpoint. Life is evolving software. Bodies are unimportant, right? The hardware is unimportant. The software is important…
Originally posted by squiz
All living cells that we know of on this planet are 'DNA software'-driven biological machines comprised of hundreds of thousands of protein robots, coded for by the DNA, that carry out precise functions," said Venter. "We are now using computer software to design new DNA software."
The digital and biological worlds are becoming interchangeable, he added, describing how scientists now simply send each other the information to make DIY biological material rather than sending the material itself.
Venter also outlined a vision of small converter devices that can be attached to computers to make the structures from the digital information - perhaps the future could see us distributing information to make vaccines, foods and fuels around the world, or even to other planets. "This is biology moving at the speed of light," he said.
But perhaps the most intriguing anecdote Venter shared was his description of how his team 'watermarked' their synthesised DNA with coded quotations from James Joyce, Robert Oppenheimer and Richard Feynman, only to learn that they had included a mistake in the Feynman quote. Venter's rather airy description of how they just went back in and fixed it drove home just how far we've come in being able to understand, and even manipulate, our own DNA molecules.
www.newscientist.com...
Information, transcription, translation, code, redundancy, synonymous, messenger, editing, and proofreading are all appropriate terms in biology. They take their meaning from information theory (Shannon, 1948) and are not synonyms, metaphors, or analogies.” (Hubert P. Yockey, Information Theory, Evolution, and the Origin of Life, Cambridge University Press, 2005
Your condition of uploading information to a cell has been met with Craig Venters' synthetic cell the parent of which was a computer network. It has also been met with bio wifi, using a virus to transmit a arbitrary message. It has also been met with our ability to send information rather than actual biological material between labs as well as our ability to encode our own digital information in DNA.
Originally posted by ImaFungi
reply to post by dragonridr
Do you find it interesting that life was determined to exist? Written within the laws of physics and quantity and quality of matter, was the fate that galaxies would form, and on planets would arise complex life, and potentially intelligent life?
Why would the laws of physics, and the substance of matter allow all this life to exist, and how come it is so sophisticated? Is this fact so easily acceptable and 'duh!' for you? if it is can you tell me why it is so easy to accept? How the universe can be so smart (dumb,blind) as to create all it has created? Is all you can say, given enough time anything can and will happen? Does that include a God creating a universe?
Originally posted by PhotonEffect
Slight resemblance? Irrelevant? Their function is "uncannily computer like" (as Dawkins puts it). DNA performs in just the same way a computer program does. And arguably with more complexity... It's in our genes to behave like computers!
It sure sounds to me like you might be the one having trouble coming to terms with all of this...
Sounds like a lot of hot wind. So you've debunked him then? Meyers, that is.
Originally posted by dragonridr
Originally posted by ImaFungi
reply to post by dragonridr
Do you find it interesting that life was determined to exist? Written within the laws of physics and quantity and quality of matter, was the fate that galaxies would form, and on planets would arise complex life, and potentially intelligent life?
Why would the laws of physics, and the substance of matter allow all this life to exist, and how come it is so sophisticated? Is this fact so easily acceptable and 'duh!' for you? if it is can you tell me why it is so easy to accept? How the universe can be so smart (dumb,blind) as to create all it has created? Is all you can say, given enough time anything can and will happen? Does that include a God creating a universe?
Ah but now youve taken out of the realm of science and into belief again. See there is a difference if you wish to ask me what i believe i will tell you. However thats not relevant to proving a conclusion now is it? And no time has nothing to do with the likely hood of the universe being created at least not in mu opinion. See how it works no proof so purely a belief on my part.
Originally posted by Barcs
Originally posted by PhotonEffect
Slight resemblance? Irrelevant? Their function is "uncannily computer like" (as Dawkins puts it). DNA performs in just the same way a computer program does. And arguably with more complexity... It's in our genes to behave like computers!
It sure sounds to me like you might be the one having trouble coming to terms with all of this...
There is nothing to come to terms with.
Being similar to something doesn't make it THAT THING. I clearly explained the metaphors, but it seems that Squiz and yourself cannot come to terms with that. Did I not already explain how the body functions like a machine?
Why does it seem so ridiculous to you guys that this "natural software" couldn't have evolved over the 3 billion + years since cells began to evolve? I don't don't see the reason to jump to conclusions about a designer over DNA.
Well at least I know who's been going through and starring all of Squiz's posts despite the content. If you share the same belief it's cool, my point is that the evidence he cites is not tangible physical evidence, despite how many times he posts articles with opinion or takes metaphorical comparisons as literal truth.
It has been repeatedly proposed to expand the scope for SETI, and one of the suggested alternatives to radio is the biological media. Genomic DNA is already used on Earth to store nonbiological information. Though smaller in capacity, but stronger in noise immunity is the genetic code. The code is a flexible mapping between codons and amino acids, and this flexibility allows modifying the code artificially. But once fixed, the code might stay unchanged over cosmological timescales; in fact, it is the most durable construct known. Therefore it represents an exceptionally reliable storage for an intelligent signature, if that conforms to biological and thermodynamic requirements. As the actual scenario for the origin of terrestrial life is far from being settled, the proposal that it might have been seeded intentionally cannot be ruled out. A statistically strong intelligent-like “signal” in the genetic code is then a testable consequence of such scenario. Here we show that the terrestrial code displays a thorough precision-type orderliness matching the criteria to be considered an informational signal. Simple arrangements of the code reveal an ensemble of arithmetical and ideographical patterns of the same symbolic language. Accurate and systematic, these underlying patterns appear as a product of precision logic and nontrivial computing rather than of stochastic processes (the null hypothesis that they are due to chance coupled with presumable evolutionary pathways is rejected with P-value < 10–13). The patterns are profound to the extent that the code mapping itself is uniquely deduced from their algebraic representation. The signal displays readily recognizable hallmarks of artificiality, among which are the symbol of zero, the privileged decimal syntax and semantical symmetries. Besides, extraction of the signal involves logically straightforward but abstract operations, making the patterns essentially irreducible to any natural origin. Plausible way of embedding the signal into the code and possible interpretation of its content are discussed. Overall, while the code is nearly optimized biologically, its limited capacity is used extremely efficiently to store non-biological information
In 2003 renowned biologist Leroy Hood and biotech guru David Galas authored a review article in the world’s leading scientific journal, Nature, titled, “The digital code of DNA.” The article explained, “A remarkable feature of the structure is that DNA can accommodate almost any sequence of base pairs—any combination of the bases adenine (A), cytosine (C), guanine (G) and thymine (T)—and, hence any digital message or information.”
MIT Professor of Mechanical Engineering Seth Lloyd (no friend of ID) likewise eloquently explains why DNA has a “digital” nature:
It’s been known since the structure of DNA was elucidated that DNA is very digital. There are four possible base pairs per site, two bits per site, three and a half billion sites, seven billion bits of information in the human DNA. There’s a very recognizable digital code of the kind that electrical engineers rediscovered in the 1950s that maps the codes for sequences of DNA onto expressions of proteins.
Francis Collins—head of the Human Genome project and a noted proponent of Darwinism, describes DNA as a “digital code,” and observes that “DNA is something like the hard drive on your computer” that contains “programming.”
Even Richard Dawkins has observed that “the machine code of the genes is uncannily computer-like. Apart from differences in jargon, the pages of a molecular biology journal might be interchanged with those of a computer engineering journal.”
Please cite me the scientific experiment where the DNA software is downloaded (not transcribed) from a natural physical living cell and then uploaded to a storage medium
Null Hypothesis 1: PI cannot be generated from/ by the chance and necessity of inanimate physicodynamics.
Null Hypothesis 2: PI cannot be generated independent of formal choice contingency.
Null Hypothesis 3: Formal algorithmic optimization, and the conceptual organization that results, cannot be generated independent of PI. Here‘‘conceptual organization’’ must be distinguished from mere self-ordering redundancies such as crystallization and Prigogine’s dissipative structures.
A single observation to the contrary would falsify any of the above three null hypotheses. A single prediction fulfillment of spontaneous formal self organization (independent of agent investigator involvement and experimenter control) is all that would be necessary to falsify any of these hypotheses. Until such empirical evidence is documented, the concept of spontaneous emergence of formal self-organization in nature should be viewed with strong scientific skepticism.
The bold scientific prediction is made in this paper that none of these three null hypotheses will ever be falsified.
How could a prebiotic (pre-life, inanimate) environment consisting of nothing but chance and necessity have programmed logic gates, decision nodes, configurable-switch settings, and prescriptive information using a symbolic system of codons (three nucleotides per unit/block of code)? The codon table is formal, not physical. It has also been shown to be conceptually ideal. *How did primordial nature know how to write in redundancy codes that maximally protect information? *How did mere physics encode and decode linear digital instructions that are not determined by physical interactions? All known life is networked and cybernetic. “Cybernetics” is the study of various means of steering, organizing and controlling objects and events toward producing utility. The constraints of initial conditions and the physical laws themselves are blind and indifferent to functional success. Only controls, not constraints, steer events toward the goal of usefulness (e.g., becoming alive or staying alive). Life-origin science cannot advance until first answering these questions:
*1-How does nonphysical programming arise out of physicality to then establish control over that physicality?
*2-How did inanimate nature give rise to a formally-directed, linear, digital, symbol-based and cybernetic-rich life?
*3-What are the necessary and sufficient conditions for turning physics and chemistry into formal controls, regulation, organization, engineering, and computational feats?
Originally posted by squiz
Yes, you take semiosis for granted. what does code evolve from? A simpler code. Biological evolution can not take place without semiosis. Even if we grant an evolving code it makes no difference. Need I add that it is pure speculation? The code evolved teleologically driven towards error protection IMO. This is what the evidence suggests.
Originally posted by squiz
And we have discussed it in another thread.
The emergence of the genetic code is perhaps the greatest enigma in all of biology.
In our opinion, despite extensive and, in many cases, elaborate attempts to model code optimization, ingenious theorizing along the lines of the coevolution theory, and considerable experimentation, very little definitive progress has been made.
Summarizing the state of the art in the study of the code evolution, we cannot escape considerable skepticism. It seems that the two-pronged fundamental question: "why is the genetic code the way it is and how did it come to be?," that was asked over 50 years ago, at the dawn of molecular biology, might remain pertinent even in another 50 years. Our consolation is that we cannot think of a more fundamental problem in biology.
www.ncbi.nlm.nih.gov...
Are you saying you have solved the greatest mystery of biology? Then publish your paper and get ready for that nobel prize!
Self Refuting
If we accept the premise that DNA contains information, and that only minds can create information, then it is safe to assume that for minds to create information they must contain information too. This then begs the question, who created the information in god's mind? Doesn't god then too need a creator resulting in an infinite regress?
Evolution
If one considers DNA a code full of information, then we know how that information got there. It got there through a process of evolution by natural selection. Which has not only been shown to produce useful information but to be the best explanation for the diversity of life on this planet and the DNA configuration of that life. Therefore we have a counterexample to the premise that "there is no natural phenomenon which can generate information in such a coherent manner" because we have a complete explanation for DNA that is a purely natural phenomenon.