Mark Pallen, author of the
Rough Guide to Evolution and expert on Type III Secretion Systems (and producer of the famed
Darwin in Dub), has a new blog. He just put up two posts about the third UK Type III Secretion meeting:
Dispatches from the cutting edge of flagellar biology, part 1
Dispatches from the cutting edge of flagellar biology, part 2
The short version: In the
2003 Big Flagellum Essay I reviewed the known homology and similarity between the flagellar export apparatus and the F1Fo-ATPase. I made a general prediction that there were likely more homologies waiting to be discovered between the two systems.
Being brave (and having no reputation to lose), I also made some specific suggestions for what the homologies might be. The mostly likely match, I thought, was between the flagellum protein FliH and the F1Fo-ATPase protein Fo-b (this was not a completely novel idea, there were a few hints in the literature and online databases). Another, admittedly more speculative, suggestion was that FliJ was homologous to the protein F1-delta. At the time, prominent ID proponents who commented on the Big Flagellum Essay -- notably
William Dembski and
Mike Gene -- dismissed, based on irreducible complexity arguments, the idea of further homologies as mere evolutionary storytelling. Mike Gene even wrote
a whole detailed essay about why I was wrong.
Here's a
nice quote from Mike Gene:
"Since the complete lack of F0F1 IC interactions are missing from the TTS machinery of the flagellum, it is unlikely that the F0F1 complex is homologous to the TTS machinery, and thus cooption of the F0F1 complex is not a plausible explanation."
And
Dembski:
Matzke makes an unconvincing argument for homologies between the type III system and an ATP synthetase system.
There the matter sat until 2005, when -- literally on the last day of the
Kitzmiller trial, if I recall correctly -- Mark Pallen looked me up out of the blue and informed me that he had confirmed a homology between FliH and Fo-b. Additionally, one domain of FliH was homologous to F1-delta, which made it unlikely that FliJ was the match to F1-delta. This was published in 2006 in
Protein Science. (Summarized in the
2006 update to the Big Flagellum Essay)
Various other discoveries have rolled in since then that have also strengthened the idea of extensive homology between the flagellum export system and the F1Fo-ATPase (and, I should add, the archaeal and eukaryote relatives of F1Fo-ATPase, really the whole group of them can be called the VFA-ATPases). For example, the structure of the flagellar ATPase FliI is dramatically similar to the F1Fo-ATPases (although this was known to be extremely likely already based on sequence similarity), and it turns out that T3SS protein export is powered directly by proton motive force (the F1Fo-ATPase is also powered by proton motive force).
All of this was interesting, but now comes
Pallen's report on the T3SS meeting:
Anyhow, to get back to what Namba said at the Bristol meeting last week....
He provided a run through of all the work leading up to his recent Nature article on the dispensibility of FliI. I was then very proud to see him cite my paper on the FliH/F-type ATPase homology. But then he provided the final piece in the jigsaw (and Nick Matzke's ears should prick up at this point)!
Namba and colleagues have now solved the structure of FliJ, another protein that interacts with FliI and FliH. And what they found was clear evidence of homology with yet another protein from the F-type ATPase--the gamma subunit!
So, now we have deep and broad homologies between the flagellum and the F-type ATPase, just as Nick predicted. This provides another nail in the coffin of the idea that flagellum was intelligently designed. If the flagellum were the product of intelligent design, particularly by an omniscient deity, the designer could have custom-built it from scratch, so it need not resemble anything else in nature. By contrast, the processes of evolution tends to cobble together and tweak already existing components (something Francois Jacob called bricolage)--and slowly but steadily it is become clear that the flagellum has been built this way.
There are now likely to be serious scientific payoffs--what all these homologies mean is going to occupy Namba et al for years to come, and it's a fair bet that comparisons between the two protein complexes are likely to clarify the structures and functions of both systems.
Science rolls on while ID stays stuck in its non-productive rut! What we need more of is science!
See Pallen's full post for the history. And buy his book (which will be very good, I have seen chunks of it!) and put him on your blogroll!
357 Comments
Eamon Knight · 19 September 2008
IDiots pwned! (again)
Dave Wisker · 19 September 2008
Congrats Nick! On a rekated note, what about the critique of the Liu and Ochman PNAS paper? Did you ever find someone willing to publish it, since PNAS doesn't publish letters?
Nick (Matzke) · 19 September 2008
Hi Dave -- a letter was attempted but didn't work so there will be stuff in the formal peer-reviewed literature eventually. But it will take awhile. Just kind of saying "they are wrong for simple reason X" isn't really enough to make a research article, whereas redoing the whole thing "right" is a nontrivial project.
JohnK · 19 September 2008
The mysterious "Namba" is Keiichi Namba of Osaka University.
Who's not quite yet of single-name fame like Cher or Bono -- 'cept to PT flagella geeks.
Nick (Matzke) · 19 September 2008
He is also the Namba of the fantastic flagellum videos that the ID people like to use...
Reed A. Cartwright · 20 September 2008
Am I the only one that keeps reading that as "Nambla", or the "North American Marlon Brando Look Alikes"?
Mark Pallen · 20 September 2008
We have a review of recent work on flagellar evolution with a gentle critique of Liu and Ochman in press at Trends in Microbiology. Should be available in the next week or two.
I wonder if the IDiots have Namba's permission to use his videos. Perhaps I could persuade him to sue for breach of copyright?! But I suspect he has more important things to do.
wad of id · 20 September 2008
I waded through Mike's crap and had to laugh. He extols the "design reasons" for the construction of bacterial flagellum using an export system. But really what he's doing is saying nothing at all except to plead for suspension of thought. If you really play the think-like-a-designer game that Mike wants you to play, you'd quickly realize that the flagellum is a kluge.
Consider: you're building a submarine. You need a propulsion system. First thing you do. . . is build a waste disposal unit? But maybe that's not what you had in mind. At its most basic, a waste-disposal unit is a system that connects the outside world to the inside world. Now, a hole in the wall of a ship is not too terribly difficult to envision. But the key is propulsion. Propulsion can be generated vis-a-vis a hole in quite a number of ways. Really, what you want to do is manipulate the environment through the hole. You can construct a parachute and deploy it through the hole. Or design a pressurized jet system where water/gas/waste products/whatever-shit-you-have-on-board is ejected through the hole. Or design gunpowder. Or design a propeller. Or design paddles. But . . . rather than think like a human designer, you decide you much rather manipulate the environment with . . . wait-for-it . . . a whip. Yes, you are quite a hardcore bondage and S&M sort-a-guy. You bad boy you.
But how do you erect a whip so that it projects out the bloody hole in the wall? Well, you could build inside the submarine before hand. Unfortunately, the physics of this problem is that you need a whip as long as your propulsion-less-submarine. The ship would then have little left to do except carrying around a humongous flagellum. Here's an idea though: you could build your flagellum along the wall of your ship so that the flagellum covers the surface in a contiguous fashion, sorta like wrapping a string loosely around a spool. Then you bleb it off the surface of the ship, and then have it unfurl. Here's another idea: you could build your flagellum piecemeal by a ratchet-system. Put the most distal end of the whip into a hole, and then keep feeding it through as you build it up from the inside. Here's another idea: you could design the flagellum by having it polymerize particles from the outside, preferably from crap that you're already sending outside the waste disposal system. Here's another idea . . . but you get the idea.
Now why did the Designer do it the way he did? As evidence mounts, it looks like he really had no choice but to use what's he's got: a waste-disposal system. There was no evidence of ingenuity, no technical tour-de-force. Rather we found evidence of sloppy workarounds. The Designer outsourced the design of a propulsion system to the engineer working on the Port-a-john. But why did he do that? Here, Mike and the rest of the IDiots prefer you to stop thinking. No, they'll whine about designer-centrism, while they slip a couple of designer-worshiping commentary past you. But this is where the "science" of ID stops, folks. You explore the design space that Mother Nature's got to work with (and it is huge), and you wonder: why-in-the-world didn't it do it this way? Without the Designer, how else do you proceed with the analysis? You don't. And that's the point of this whole fucking controversy.
chunkdz · 20 September 2008
chunkdz · 20 September 2008
David Stanton · 20 September 2008
Cunkdz,
The fact that you have zero comprehension does not change the fact that wad hit the nail on the head. Perhaps you can describe for us what the future genetic data should reveal if the at least one of the thousands of types of flagella were designed by someone somewhere for some reason.
By the way, copying and pasting long sections of text without any substantive response is troll tactic number 3. You don't want to be labeled a troll now do you?
As for Nick, the genetic data has vindicated his position. He should be able to say I told you so.
chunkdz · 20 September 2008
Stanton · 20 September 2008
wad of id · 20 September 2008
[quote]Mike never claimed ID was science, and his approach has never required independent knowledge of the designer.[/quote]Where did I say Mike claimed ID was science?
The strawman is yours. What I assert is far stronger: ID cannot be science. Mike thinks it could be -- he is wrong.
wad of id · 20 September 2008
I'll add another comment: Mike says he does not require independent knowledge of the designer. Actually what he does is imbue the designer with whatever characteristic he needs for his just-so story to make sense. It is as if he alone has a direct channel with the Designer. What I show above is that his Designer is completely unrecognizable from anything we know. In fact every once in a while Mike admits as much. So once again, where is the justification for his assumptions about the Designer? Nowhere. He just pulls it out of his ass and then labels it "proto-science". Let's all be honest and call it what it is: bullshit.
David Stanton · 20 September 2008
Chunkyz,
Thanks for responding to my comment, but conveniently not answering the question I asked. The point made by wad is still valid and you have written nothing to dispute it. By not answering the question you have again demonstrated the validity of the argument.
ID is not science and cannot ever be science. It did not successfully predict anything and it cannot explain any of the evidence. If the only thing you can do is make a posteriori "predictions" then you have failed miserably. Rerducing God to an incompetent boob is not something that most Christians would take kindly to.
Stanton · 20 September 2008
Torbjörn Larsson, OM · 20 September 2008
chunkdz · 20 September 2008
chunkdz · 20 September 2008
Stanton · 20 September 2008
chunkdz · 20 September 2008
Stanton · 21 September 2008
Mike Elzinga · 21 September 2008
wad of id · 21 September 2008
David Stanton · 21 September 2008
Chunkdz wrote:
"Good point. ID’ers look at the basis of all biological systems, the code of life, as an elegant and sophisticated programming language - an optimal design."
Once again you prove my point. The last twenty years of molecular genetics has shown us conclusively that the genome is anything but optimally designed. It is more of a hodge podge of useless repetitive sequences, harmful tandem repeats, mutation causing short and long interspersed transposable elements, nonfunctional pseudogenes, etc. etc. etc. Now who is fooling themselves?
Look, you just can't claim that the genome is optimally designed, you just can't. That ignores all of the evidence. Instead, the structure of the genome is exactly what one would expect if it were the product of billions of years of random mutation and natural selection. That is why ID fails miserably as science, No mater what the evidence, some idiot will be ignorant or stupid enough to claim that that is the way would have done it. Postdiction is not a valid test for a hypothesis.
So tell me again, exactly what sequence would one expect to find in this "optimal" code of life if some designer did something somewhere at sometime for some unknown reason?
chunkdz · 23 September 2008
chunkdz · 23 September 2008
chunkdz · 23 September 2008
Ichthyic · 23 September 2008
What I assert is far stronger: ID cannot be science. Mike thinks it could be – he is wrong.
Oh, if we're about positing fantasy worlds where we actually can sit down and speak with a putative "intelligent designer" and find out exactly how and when it operates in the world, THEN ID could be science.
since IDiots seem to love making up notions of the improbability of things, I'd have to add that such a scenario is so improbable as to make your strong assertion that ID cannot be science a relative certainty.
Of course, the likes of Dembski and Johnson already know this, but can readily rely on an army of wishful thinkers to keep the 'cause alive.
that said, hey, I'll be first in line to interview God as to mechanism whenever he manages to pop up from his infinitely long, self-imposed nonpresence.
Henry J · 23 September 2008
I wonder if the above argument about genetic code is about the code, or about the genomes that make use of the code?
D. P. Robin · 23 September 2008
chunkdz · 23 September 2008
wad of id · 23 September 2008
If optimality is good design, then what does sub-optimality or lethality imply?
chunkdz · 23 September 2008
David Stanton · 23 September 2008
Chunkdz,
You should be more precise. The genetic code is not the "code of life". Also, the authors conclude that the code waas fixed, not designed. In any event my point still stands, the genome is not optimal in any way.
Oh and sub-optimal means incompetent design.
chunkdz · 23 September 2008
David Stanton · 24 September 2008
Chunkdz,
Personal attacks do not address the substance of the argument. You did not use the proper terminology, so berating others for not understanding is counterproductive. You have not shown that the genetic code could not have evolved. Indeed there is much evidence that it has. You have also failed to refute the point that the genome is far from an optimal design and therefore implies an incompetent designer at best.
Well adapted systems give the illusion of design. What you need to do is devise a test that distinguishes between the two possibilities. Might I suggest the Explanatory Filter. Yea, that should yield a valid statistic that everyone can agree is biologically meaningful. I'm sure that everyone will be convinced by that.
chunkdz · 24 September 2008
Stanton · 24 September 2008
If life really is designed, how come you are extremely hesitant to explain how it is designed beyond making the blanket statement of it being "optimal"? Are we to assume that this is the very limit of your evidence, and that your constant personal attacks are to deflect scrutiny from your lack of evidence?
chunkdz · 24 September 2008
Stanton · 24 September 2008
chunkdz · 24 September 2008
fnxtr · 24 September 2008
Stanton · 24 September 2008
chunkdz · 24 September 2008
Stanton · 24 September 2008
wad of id · 24 September 2008
Optimality is not perfection. But chunky knew that. So optimality is not a problem for evolution because it is well known that evolution produces locally optimal solutions. In fact it is used for that specific purpose in artificial settings: look up genetic algorithms, for instance.
So the genetic code is "optimal." Unless you are chunky who wears blinders, you have to ask merely 2 questions:
1) Under what specific criteria is this system optimal.
2) Are these criteria necessary for life?
Chunky will fail both the answers to these questions because his teleological blinders prevents him from exploring the possibilities aside from what he has before him. It is is his failing. It need not be yours.
chunkdz · 24 September 2008
Stanton · 24 September 2008
So then can you demonstrate how optimality as evidence for Intelligent Design can explain things like Huntington's Disease, or do you simply wish to continue your stream of insults and ranting?
wad of id · 24 September 2008
Well, chunkdz, how about the IDiotic alternative: we can out your IP address, find out your real life identity, and then send you in for an FBI background check because of your secret terrorist activities.
LOL
chunkdz · 24 September 2008
wad of id · 24 September 2008
Exactly. It is optimal with respect to constraints. Read it again dipshit: CONSTRAINTS. Constraints = criteria. It is globally optimum with respect to these CONSTRAINTS.
Where do the authors say that the CONSTRAINTS are the only ones sufficient for life?
Read it and weep, dipshit.
wad of id · 24 September 2008
chunkdz · 24 September 2008
wad of id · 24 September 2008
chunkdz · 24 September 2008
wad of id · 24 September 2008
So you didn't read the paper. They were very specific about the "plausible biological criteria." They didn't say "all." They didn't say "IM-plausible"
So burden is on you to show that these biological criteria are the ONLY criteria which sustain life. Not as we know it. Any life.
You can't.
chunkdz · 24 September 2008
wad of id · 24 September 2008
Where was the word "all" in that phrase, dipshit?
chunkdz · 24 September 2008
D. P. Robin · 24 September 2008
wad of id · 24 September 2008
LOL When faced with authoritative contradiction, caught in an outright lie, and shown to be embarrassingly uninformed, chunkydisease resorts to the last bastion of the simple-minded: close your mind and scream lalalalala. Let's not "simply" say anything, dumbass, because unlike you, I actually think about the matter and read.
wad of id · 24 September 2008
While chunky is down for the count, let me kick him a coupla times more:
Evolution designs.
Oh my fucking god, the horror.
LOL
fnxtr · 24 September 2008
See, because we are blinkered by our limited perspective, we can never understand how what looks like contingency and accident is actually all part of the Perfect Master Plan. And one day someone will prove it. Scientifically. Maybe chunkdz will. Libraries and labs full of real work are no match for Aristotlean mind-wanking. You just wait.
Science Avenger · 24 September 2008
Slightly OT, but I've been involved in a few disputes over randomness in gaming and gambling clubs, and I've noticed that the complaint is always that the low probability events are happening too often. Never once have I seen the complaint that the low probability events happen too seldom. I find that telling, since it is apparent that erring on the side of false positives would be evolutionarily advantageous for our psychology. The rabbit that bolts at the first sign of a coyote in the grass is going to pass on its genes far more frequently than the one that doesn't notice, or the one that does, but waits around to get more data before making a decision. It also is consistent with our tendency to remember outlying events more than routine ones, thus elevating their perceived frequency.
So it comes as no surprise to me that the dispute over the randomness in evolution would come from people claiming that the low probability events like bacterial flagellum and DNA were happening too often. It's the same mistake, just a different arena, but it helps explain what little secular appeal ID has for some people.
Mike Elzinga · 24 September 2008
Well, I certainly won’t claim that this troll is entertaining.
So, as we already knew, according to ID/Creationists, optimum implies design.
But the argument that something being optimal implies design is old, seriously flawed, and is part of the repertoire of misconceptions of the ID/Creationist crowd.
Using these misconceptions, they could claim that a monkey, grabbing a length of rope or vine and flinging into the air and having it fall limply across two limbs, has just designed the catenary curve that minimizes the potential energy of the rope or vine. And also the parabolic arc that the center of mass of the rope followed before it landed on the limbs because that path also minimizes an action integral.
Similarly, if the monkey looked down at the reflections in a puddle of water, they could argue that the monkey positioned itself exactly at the point where the light rays from the reflected objects minimized their time of travel from the object, off the puddle, to the monkey. Therefore monkeys position themselves according to intelligent design.
Even more impressive; if the monkey is looking at an object lying at the bottom of a pond, the monkey again positioned itself exactly at the point where light from the object to the monkey took the path of least time but not the path of least distance. How did the monkey know to choose correctly between these alternatives?
And if the monkey tipped over a bucket of sand and the sand spilled down through a knothole and formed a cone-shaped pile on the ground below, they could say that the monkey designed the exact cone angle that minimized the potential energy of the sand pile.
Living systems that get sorted over time and are the ones that survive for a time might, in a very loose sense of the word, be “optimal”, but there is enough variability in what is able to survive that one would be mistaken to claim that it is the “best” of what came through a sequence of contingencies. The laws of physics and chemistry are always operating, and what falls out has to be consistent with those laws. But that doesn’t mean they are designed. Some pretty sloppy stuff gets through the sieve.
And there is still that issue which is never addressed by the ID/Creationists, namely, how does one infer design without having some notion of a designer? All we ever here from ID/Creationists is that they make inferences from what intelligent creatures do in the natural world.
Yet they can never show the “science” that permits them to attribute such qualities to a supernatural deity. How do they know what characteristics such a deity has? The bait-and-switch tactic to a “natural designer” simply puts the origins of life elsewhere and at another time, but now they have to worship a master race of fully natural space aliens. What comet did they hide their space ship behind?
iml8 · 24 September 2008
chunkdz · 24 September 2008
chunkdz · 24 September 2008
chunkdz · 24 September 2008
Mike Elzinga · 24 September 2008
wad of id · 25 September 2008
wad of id · 25 September 2008
Speaking of MG fan club representatives. It is quite interesting that they have ceased to discuss the actually topic of this blog: the fucking flagellum. Instead this one derailed the thread by going off on a deep tangent about optimal codes and monkeys. Why do you think they would do that? Because their idol actually fucked up regarding his ID analysis of the flagellum. In other words ID thinking couldn't have made him predict that the Designer cobbled the flagellum out of other parts. Here, he admits it himself: http://www.thedesignmatrix.com/content/evolution-of-bacterial-flagellum/
Oh well, it's only a matter of time before goal posts are shifted further back.
Mike Elzinga · 25 September 2008
chunkdz · 25 September 2008
chunkdz · 25 September 2008
Mike Elzinga · 25 September 2008
chunkdz · 25 September 2008
eric · 25 September 2008
Mike Elzinga · 25 September 2008
iml8 · 25 September 2008
I normally don't pay much mind to the ankle-biter visitors on PT,
since they have nothing interesting to say and answering them is
not a good use of breath. However, when told "you don't know
anything about optimization", I got to thinking and realized that,
actually, I do. My EE degree had a CS minor component, and I worked
a software development environment for the better part of two
decades -- not actually as a developer myself for the most part, in
a supporting role, but one that kept me intimately involved with
development life-cycles, to be occasionally called in to lend a
hand when needed.
So what does "optimization" mean in terms of software development?
It means either space optimization or speed optimization. It's
easy to measure space optimization, it's just the number of bytes of
the program. It's harder to measure speed optimization, one has to
come up with a set of benchmarks on the basis of observation and
judgement ... since much of what has to be optimized is obvious, that's
not TOO big a deal.
Note that space and speed optimization tend
to work at cross purposes: a bubble sort, for example, is easy to
implement but slow, while a shell sort is complicated but fast. There
is also the unfortunate and sometimes disastrous factor of
maintainability: it's all too easy to write tricky code that becomes
an intolerable burden to modify and update, particularly after the
slipshod programmer who wrote it goes elsewhere.
Anyway, so to achieve optimization the software development team
inspects the code and sees what changes can be made, either to
reduce its size or increase its speed or, inshallah, both. They
end up with an optimized program that is smaller or runs the
benchmarks faster. Is it now PERFECTLY optimized? How could
anyone tell? Can anyone rule out that better optimizations could
be found? It is simply more optimum in the desired characteristics
than the earlier version.
Now computer science people investigate efficiency of algorithms
and they can demonstrably prove, for example, that a fast Fourier
transform algoritm is much more efficient than a simple discrete
Fourier transform algorithm. Could such calculations be made for
a full applications program in all its actions? It's hard to see how,
nobody does, and nobody expects to.
It seems like the genome is being called "optimum" in the space
efficiency sense. Really? Can it be demonstrably proved that it
can't be reduced in size? Even I can think of how to do it --
cut out provirus and broken gene sequences, the DNA we actually
KNOW is junk. There is also the fact that some members of the
onion family have genomes five times as big as others, and that
there are plenty of organisms that we would judge as "simple"
that have much bigger genomes than we do. So are some genomes
optimized and others not? Why the selectiveness?
For us to understand the optimization of the genome, we'd have to
have a detailed knowledge of its operation to the point of being
able to design our own. Could we start cutting out chunks and
show they don't make a difference? Serious ethical problems here ...
Of course, comparing Windows OS with the size of the genome is
substantially more extreme than comparing apples (bad word here
for Windows!) and oranges. It's not even easy to compare different
computer languages -- I could write algorithms in one line in some
languages that would take pages in others (noted such one-liner
languages can be HIDEOUS to deal with). I could also implement
sophisticated algorithms to perform real-time differential equations
with a package of op amps, some resistors and capacitors ... does
that make a analog computer more optimum than a computer program?
An organism is not a digital computer.
It does have a digital-style storage system, but that's about the
sum of the resemblance. It does have analog-style systems, but
it's not an analog computer. There's no insight in making
comparisons between them, it's just the usual ID reasoning by
analogy. Even if we were to argue optimization
of biosystems versus human systems, there's nothing in the argument
that rules out billions of years of tuning by natural selection
as the cause. No human program has ever endured that kind of
tweaking.
This is useful information to the PT crowd. Our visitor? My
impression is that he has little or no familiarity with software
development.
White Rabbit (Greg Goebel) http://www.vectorsite.net/gblog.html
chunkdz · 25 September 2008
chunkdz · 25 September 2008
iml8 · 25 September 2008
Did you know you can find decaffeinated coffee that is
every bit as tasty as the real thing?
White Rabbit (Greg Goebel) http://www.vectorsite.net/gblog.html
Mike Elzinga · 25 September 2008
chunkdz · 25 September 2008
iml8 · 25 September 2008
To the people who run PT: May I kindly suggest that
this thread now be consigned to the Bathroom Wall?
There is nothing of interest in it any longer and it
serves no useful purpose.
White Rabbit (Greg Goebel) http://www.vectorsite.net/gblog.html
chunkdz · 25 September 2008
Mike Elzinga · 25 September 2008
chunkdz · 25 September 2008
David Stanton · 25 September 2008
Chunky,
Every time you stoop to personal insults you reduce your credability. You are now in negative values. Despite all your insults, you have still not addressed even one of the germane issues. Here is a short list to help keep you focussed:
1) There is no way to define "optimal" function. That conclusion will always depend on the criteria, which will always be subjective.
2) Even if you could define "optimal" in a sufficiently rigorous way, you still need to distinguish between optimal function produced by evolution and that produced by "design". Until you do this, evidence of optimal function is irrelevant.
3) Even if you can demonstrate optimal design in some cases, you must also account for sub optimal design. In other words, if optimal design is interpreted as evidence of a perfect designer, then sub optimal design must be interpreted as evidence that no such designer exists.
In order to forestall any further personal attacks, let me respond proactively with the following:
I know you are but what am I?
iml8 · 25 September 2008
Mike Elzinga · 25 September 2008
wad of id · 25 September 2008
Frankly, I don't give a fuck what chunky has to say. My responses were for the lurkers out there who have contempt for people like chunky and wish to learn some counter-IDiocy arguments. Chunky feeds off of Mike Gene's titties. And now he's a little fussy. I think it's time the little baby gets some more feeding from Mama Gene. LOL
Mike Elzinga · 25 September 2008
Science Avenger · 25 September 2008
tresmal · 25 September 2008
My emphasis and point.
chunkdz · 25 September 2008
chunkdz · 25 September 2008
chunkdz · 25 September 2008
Mike Elzinga · 25 September 2008
wad of id · 25 September 2008
Compare chunkydisease to another of Mama Gene's boys, Guts: http://helives.blogspot.com/2008/07/now-thats-just-ugly-by-design.html
Notice the difference? ;-)
tresmal · 25 September 2008
David Stanton · 25 September 2008
Chunky,
You didn't address one of my points with a valid argument. And calling yourself all of those names is unfortunate.
1) The genetic code is not "optimal" for many different criteria. How do you know that those criteria are not more valid than the ones arbitrarily chosen? You don't and neither do the authors.
2) You still have not addressed the possibility that the code has evolved in any significant way. Why is that?
3) If the designer designed such a perfect code, why design such an inefficient and sub optimal genome to be decoded? The illusion of optimality is just as imaginary as the illusion of design.
4) If you claim the expertise and conclusions of the authors as authoratative then you are forced to accept thier conclusion that the genetic code evolved. You can't pick and choose and still use the argument from authority. Either they know what they are talking about and you are wrong, or they don't know what they are talking about and you have no evidence.
So now you are prejudiced, you are stupid, you are grasping at straws and you are a moron. There, does that make my argument any better?
chunkdz · 25 September 2008
chunkdz · 25 September 2008
chunkdz · 25 September 2008
Henry J · 25 September 2008
I'm still wondering if the claimed optimization is referring to the code itself (which base combinations correspond to which amino acids) or implementations of it (the genomes of organisms).
I'm thinking that optimizing the code itself is something that would be considerably simpler before organisms had become dependent on it for day to day survival. After that, any change in the code would seem to require corresponding changes in the already established DNA sequences.
Henry
chunkdz · 25 September 2008
chunkdz · 25 September 2008
David Stanton · 25 September 2008
Chunky,
Way to address the issues man. Once again:
I know you are but what am I.
Juvenile, yes, but appropriate.
tresmal · 25 September 2008
P.S. I did read the paper, but like the authors, I don't see it making even a down payment on evidence for design.
wad of id · 25 September 2008
Yup, I agree with tresmal above. I agree wholeheartedly with the author's conclusions based on their findings. Once again chunky lies to us.
Mike Elzinga · 26 September 2008
It looks like chumpy is trying to do a Don Rickles impression.
He’s not very good at it.
eric · 26 September 2008
chunkdz · 26 September 2008
David Stanton · 26 September 2008
Chunky,
Perhaps I should clarify my position. I don't berate you just for using insults. I'm sure everyone just skips over those parts of your posts anyway. I berate you for substituting insults for arguiments. Others have not done that, so my condemnation of you is justified.
Second, I am not saying that the authors are wrong. I am saying that your interpretaion of their results is wrong. Quote mining and using the argument from authority won't work here. What you need is a better argument. Gratuitous use of insults isn't helping you to make any point here.
chunkdz · 26 September 2008
chunkdz · 26 September 2008
PvM · 26 September 2008
PvM · 26 September 2008
chunkdz · 26 September 2008
PvM · 26 September 2008
PvM · 26 September 2008
Note that the work by Landweber, Knight and others has added significant understanding to the evolution of the genetic code, something which in ID has no equivalents.
So how does ID's 'explanation' compare to how science explains these findings?
PvM · 26 September 2008
PvM · 26 September 2008
chunkdz · 26 September 2008
chunkdz · 26 September 2008
PvM · 26 September 2008
chunkdz · 26 September 2008
PvM · 26 September 2008
PvM · 26 September 2008
PvM · 26 September 2008
Of course, not only is the code 'optimal' when constrained by prebiotic chemistry, the redundancy of the code causes significant evolvability in the code through the existence of neutrality.
In other words, the success of evolution is explainable by observing that the code allows for significant redundancy (degeneracy) which leads to neutrality which leads to evolvability as Toussaint has shown how neutrality is a requirement for evolvability.
Fascinating how all these come to fit together nicely without the need for 'poof'.
So explain to us again, how does ID propose to explain these data?
chunkdz · 26 September 2008
PvM · 26 September 2008
chunkdz · 26 September 2008
chunkdz · 26 September 2008
PvM · 26 September 2008
PvM · 26 September 2008
PvM · 26 September 2008
It was nice talking to you ChunkDZ, I have to run now for some errands, let me know if you have any further questions you believe I should address.
charles · 26 September 2008
It's revealing and sad as an outsider to read who's throwing the ad hominems around.
My last contact with Scott Minnich suggests that the flagellar mechanism is still very much up and running as an example of irreducible complexity, the fact that one component can be removed and the whole system is not deactivated proves little, except a degree of redundancy - how does that invalidate Behe's central thesis? The challenge for materialists is to provide a feasible pathway to synthesis and a lineage - that remains exceedingly distant.
The new FliH/F-type ATPase homologies are interesting but of relatively little weight except as exactly that homologies.
As I see it, the TT3 mechanism is a rudimentary component, only present in species thought to be younger, and nothing like an assembly mechanism has yet been elucidated, far less a convincing evolutionary lineage.
ben · 26 September 2008
It's unfortunate that PT's moderation has become so weak and useless that an aggressive ass like chunkdz is allowed to freely pollute the thread with vicious invective and it is allowed to stand as legitimate commentary, for meek fear of PT being seen as "censoring" anything, however idiotic and ill-intentioned. Is this supposed to be a science blog, or an opportunity to expose that a tiny fraction of the anti-evolution crowd (or any crowd) is composed of mindless, hateful morons? I think we already knew the latter, so what's the point?
Mike Elzinga · 26 September 2008
chunkdz · 26 September 2008
Stanton · 26 September 2008
chunkdz · 26 September 2008
charles · 26 September 2008
iml8 · 26 September 2008
Stanton · 26 September 2008
Take your pick here
charles · 26 September 2008
Hmmm, heat but no light - uncharacteristically.
chunkdz · 26 September 2008
iml8 · 26 September 2008
I feel slighted. Here I was expecting a torrent of
abuse, and all I got was the most perfunctory and
half-hearted insult. It was like I wasn't even worth
the effort!
White Rabbit (Greg Goebel) http://www.vectorsite.net/gblog.html
iml8 · 26 September 2008
Well, come on, I'm waiting.
White Rabbit
Mike Elzinga · 26 September 2008
iml8 · 26 September 2008
What's taking you? I haven't got all day.
White Rabbit (Greg Goebel)
iml8 · 26 September 2008
stevaroni · 26 September 2008
James F · 26 September 2008
stevaroni · 26 September 2008
iml8 · 26 September 2008
iml8 · 26 September 2008
It's interesting that in contrast to the discussion up
to now, chatting with charles actually seems pleasant.
Still waiting to be given the consideration to be abused
properly, however.
White Rabbit (Greg Goebel) http://www.vectorsite.net/gblog.html
PvM · 26 September 2008
David Stanton · 26 September 2008
Charles wrote:
"Can you cite .… a small incremental step towards its evolution? Not hypothetically, but actually?"
Yes I can, and thanks for asking. Now we are getting somewhere. Even though this is not the topic of this thread, the moderators have seen fit to let chunky spew forth for days now. It is about time that someone points out that the evolution of the genetic code has been well studied since the time of Watson and Crick. Here are a few references to get you started:
Alberti (1997) Journal of Molecular Evolution 45:352-258
Ardell and Sella (2002) Phil Trans. R. Soc. Lon. B 357:1625-1642
Brook et. al. (1998) Molecular Biology and Evolution 19(10):1645-1655
Wong (1075) PNAS 72:1090-1912
Perhaps the best example is the Brooks et. al. paper which describes the order in which amino acids were most lilkely added to the genetic code. The Wong paper is for real, no kidding.
And by the way, no one was around to observe the evolution of the genetic code, so no, none of these are eye witness acounts. I am sure that is not what you were asking for.
Science Avenger · 26 September 2008
Science Avenger · 26 September 2008
iml8 · 26 September 2008
iml8 · 26 September 2008
wad of id · 26 September 2008
Aww, it looks like chunky doesn't like cock. And he's clearly not getting any pussy either. So what the fuck is he doing here hanging around a bunch of monkeys for? Methinks this dumbass doth protest too much.
BTW, chunky, I have a simple challenge for ya. It's a science project, y'see. You can write the authors and see if they actually mean what you say they mean. Go ahead. I double dare ya.
LOL
Mike Elzinga · 26 September 2008
iml8 · 26 September 2008
fnxtr · 26 September 2008
That's it! ID = Inebriated Designer!
Henry J · 26 September 2008
chunkdz · 26 September 2008
David Stanton · 26 September 2008
Chunky once again tries to make the discussion about insults rather that the issues. Why do you suppose that is?
PvM · 26 September 2008
chunkdz · 26 September 2008
iml8 · 26 September 2008
chunkdz · 26 September 2008
David Stanton · 26 September 2008
Chunky,
Please refer to my previous post. Consider it a response to every post you have made.
chunkdz · 26 September 2008
chunkdz · 26 September 2008
PvM · 26 September 2008
PvM · 26 September 2008
Of course, Freeland and Knight :-)
PvM · 26 September 2008
PvM · 26 September 2008
tresmal · 26 September 2008
chunkdz: Bear with me here, I am just a troglodyte who has just figured out the whole opposable thumb thing but I would like to ask; why are you continuing with this farce? I am just a bucket of monkey pus, but do you have some sort of goal in mind with your comments? And a strategy for achieving that goal? Now I'll be the first to admit that I am a chancre on a rat's anus, but I struggle to see what outcome could occur, after you have posted your last comment on this thread, that would leave you satisfied that your time here was well spent. To show show you what a lobotomized, poo flinging monkey I am the best answer I could come up with is that you're persisting out of stubborn spite! I know what you're thinking, what a retard! But even that modest effort caused sweat to pool on my pronounced brow ridge. Could you explain to someone like me, who has a neural net for central nervous system, how you get a "win" or otherwise satisfactory outcome? Are you going to pursue Wad of Id, Ahab like, throughout the internet? Off topic, but have you run into a commenter by the nym fongooly on any of the Scienceblogs? Back on topic. You use the term culture warrior a lot, does this mean that this has all been a Godless-flagburnin-babykillin-treehuggin-homos vs. Real Americans debate and not an evolution vs. ID one? Because being the knuckle dragging, mouth breathing cretin that I am, I missed that! Lastly can you tell me how other commenters on this thread pull the old cut-and-paste-and-comment-on-a-paper-without-reading-it trick? That has this uppity monkey completely baffled.
Science Avenger · 27 September 2008
wad of id · 27 September 2008
wad of id · 27 September 2008
PvM · 27 September 2008
chunkdz · 27 September 2008
chunkdz · 27 September 2008
chunkdz · 27 September 2008
PvM · 27 September 2008
PvM · 27 September 2008
PvM · 27 September 2008
wad of id · 27 September 2008
You nailed it again, PvM. The problem is an absence of moderation. You also forgot another key offense: chunkdz is lashing out against everybody, every person who replies to him regardless of how civil the replies. So in the absence of moderation, in the presence of outlandish willful ignorance, what do you do? You treat it contemptuously. Until a moderator shows up and cleans up.
chunkdz · 27 September 2008
PvM · 27 September 2008
PvM · 27 September 2008
Science Avenger · 27 September 2008
eric · 27 September 2008
chunkdz · 27 September 2008
eric · 27 September 2008
PvM · 27 September 2008
chunkdz · 27 September 2008
chunkdz · 27 September 2008
David Stanton · 27 September 2008
From the abstract of the paper:
"However, this finding does not hold for other amino acid properties..."
"Finally, other analyses have shown that significantly better code structures are possible."
"The arrangement of mino acid assignments to the codoins of the standard genetic code appears to be the direct product of natural selection..."
Your point was exactly what then?
Jim Harrison · 27 September 2008
Evolution by random mutation and natural selection is the equivalent of an approximation method in mathematics. Some approximation methods work better than others because they converge on a solution faster; but if a method converges at all, you expect it to produce optimal results if the n is big enough. Which is why it is hardly surprising that the genetic code is optimal: there were zillions of iterations of mutation and selection, umpteen more trials than what happens in the evolution of metazoan animals, for example, which is one of the reasons that pigs cannot fly.
wad of id · 27 September 2008
iml8 · 27 September 2008
wad of id · 27 September 2008
Here is where chunky's reasoning is bassackwards: he looks at the word "optimality" and goes ape-shit that optimality is in of itself a teleological end-point. What Freeland et al. looked at was the opposite conclusion: suppose optimality is the result of evolution (i.e. natural selection and random mutations) as it is known to optimize locally for many other selectable traits. Then ask the scientific question: What was the primary selective force for the evolution of the canonical code? It makes a key hypothesis: the selected trait produces a restricted set for which the canonical code is a global optimum.
This is the key question the paper attempts to address: is the code optimizing for some key property of amino acids, with the resulting code structure being an "accident"/"artifact"?? or is the code optimizing for structure, with the resulting optimality for certain amino acid properties an accident/artifact?? What they discovered was that code structure was selected with preservation of "amino acid similarity" as an artifact of a precanonical code. Again, the whole analysis fucking falls apart without an understanding of evolution.
PvM · 27 September 2008
PvM · 27 September 2008
chunkdz · 27 September 2008
chunkdz · 27 September 2008
PvM · 27 September 2008
chunkdz · 27 September 2008
PvM · 27 September 2008
heck even the original paper shows that it is close to but not necessarily the best code. Look at http://mbe.oxfordjournals.org/content/vol17/issue4/images/large/mbev-17-03-11-f02.jpeg
If the code were optimal then the boxes in a and b would all be at 0 and the boxes in c would be all at 100%. They are not, showing that better codes exist, although quite a few of them. Figure d shows the 'optimality' when instead of the restricted codes, all codes are considered and the optimality drops even further.
chunkdz · 27 September 2008
PvM · 27 September 2008
PvM · 27 September 2008
PvM · 27 September 2008
chunkdz · 27 September 2008
chunkdz · 27 September 2008
PvM · 27 September 2008
PvM · 27 September 2008
David Stanton · 27 September 2008
Chunky,
One last time, just to be fair:
The genetic code is optimal for an arbitrary criteria due to natural selection. That is what the authors conclude. That is what we can all agree on. If you have any other point to make, just make it and be done.
No one can claim that the code is the best possible code for all criteria. If you want to conclude this, you are wrong. If you say that the authors concluse this, you are wrong. Even if the authors did conclude this, they are wrong. Get over it.
There is absolutely no point to any of this. If you can't see that then I will just have to berate your intelligence until my sheer rudness forces you to admit that I am right.
PvM · 27 September 2008
PvM · 27 September 2008
PvM · 28 September 2008
tresmal · 28 September 2008
You guys still at it? As I understand it the difference between the restricted and unrestricted sets is especially relevant for the design inference. A designer, unlike nature, would be able to take advantage of the unrestricted set which contains solutions that are at least a little bit better and maybe significantly better than the extant code. This means, if I understand correctly, that if the code is the result of purely undirected natural processes then - and only then - it is optimal or very nearly so for error minimization.
On the other hand if it is the result of design then it is more of a Microsoft product. (i.e. not so optimal) Apart from chunkdz does anyone here think that I have got it completely wrong?
wad of id · 28 September 2008
PvM this guy's all yours buddy. Show me just how well your approach gets through with the dumbass.
PvM · 28 September 2008
PvM · 28 September 2008
Henry J · 28 September 2008
Science Avenger · 28 September 2008
wad of id · 30 September 2008
Where is chunkydisease? LOL Hats off to PvM for vanquishing another IDiot troll.
chunkdz · 30 September 2008
chunkdz · 30 September 2008
PvM · 30 September 2008
chunkdz · 30 September 2008
PvM · 30 September 2008
PvM · 30 September 2008
PvM · 30 September 2008
David Stanton · 30 September 2008
Chunky,
If the code is optimal for error minimization, it cannot be optimal for many other criteria. For example, the code could be much more efficient if there were six bases rather than four. Then each codon would only need to be two nucleotides in length instead of three and that would be much more efficient. Likewise, if only sixteen amino acids were used, even the four letter code would be much more efficient. So there are in fact many criteria for which the code is not optimal locally, globally or otherwise.
Anyway, you still haven't made any point at all. So what if the code is near optimal for one arbitrary criteria due to selection? You still have no point to make.
chunkdz · 30 September 2008
PvM · 30 September 2008
chunkdz · 30 September 2008
chunkdz · 30 September 2008
chunkdz · 30 September 2008
PvM · 30 September 2008
I can understand why you may have been misled about your conclusions but let's once again point out that
1. The authors claimed that the code was at or near its maximum, in other words, they did not claim that it was the best code but that it was close to optimum
2. The authors restricted the search to prebiotically relevant codes, and when expanded they showed how the code was not really that optimal. Note that pre-biotically relevance is no requirement unless you presume an evolutionary history, the code could have been totally arbitrary of pre-biotic chemistry and still work as well or better than the present code.
Just helping you understand how you may have come to your flawed interpretation of what the authors actually concluded and what the data showed
To no surprise thus, the more recent findings show indeed that most codes would reach the same 'optimality' or better from almost any initial condition.
Understanding is all that is needed.
chunkdz · 30 September 2008
wad of id · 30 September 2008
How's it going, PvM? You're getting through to the IDiot yet?
wad of id · 30 September 2008
wad of id · 30 September 2008
Here: I'll dumb it down for ya. Explain to us what is the PAM. Go ahead, I double dare ya.
David Stanton · 30 September 2008
Chunky,
Why is error minimization a more valid criteria than efficiency? Sixty four codons for twenty amino acids seems pretty inefficient to me. It doesn't seem like a very intelligent design at all. Why is it a more valid criteria than reducing the number of amino acyl tRNA synthetases to a minimum or the number of tRNAs required? Why is it a more valid criteria than any other that anyone could come up with?
Of course natural selection will be stronger for some features than others. Obvioulsy error rate would be strongly selected on. Is that the point you were trying to make?
You have still provided no reason whatsoever why anyone should care if you think the code is optimal for anything or not. Until you do, learn some manners and go away, not necessarily in that order.
PvM · 30 September 2008
PvM · 30 September 2008
tresmal · 30 September 2008
wad of id · 30 September 2008
Exactly, David.
He's like some fucking IDiot with a stutter: "op... op... optim ... optimal... It's op... op..."
Who cares about opimality outside of an evolutionary context?
The point of the article cannot be understood of this context. That's the point of the article, which he conveniently ignores.
Ban the fucker.
PvM · 30 September 2008
wad of id · 30 September 2008
I want to remind chunkydisease that there are hundreds of IDiotic websites where he can go play with other IDiots. This is a private server run by people who pay the bills for its service. Chunky is a guest here. He knows the rules. If he doesn't like the inhabitants, he has no reason to stay. Go along, you have lost the debate. Get a life.
wad of id · 30 September 2008
wad of id · 30 September 2008
Compare the Huffman code vs. the genetic code. What do they have in common in terms of their primary purpose?
PvM · 30 September 2008
chunkdz · 30 September 2008
chunkdz · 30 September 2008
chunkdz · 30 September 2008
chunkdz · 30 September 2008
chunkdz · 30 September 2008
chunkdz · 30 September 2008
PvM · 30 September 2008
PvM · 30 September 2008
wad of id · 30 September 2008
PvM · 30 September 2008
PvM · 30 September 2008
PvM · 30 September 2008
PvM · 30 September 2008
PvM · 30 September 2008
PvM · 30 September 2008
PvM · 30 September 2008
tresmal · 30 September 2008
PvM: I have been reading exchanges with chunkdz and his colleague, jobby, for some days now, and all I can say is that you make Job look like a pathetic whiner.
tresmal · 1 October 2008
Arggh! your exchanges with etc.... (remember Preview is our friend)
PvM · 1 October 2008
tresmal · 1 October 2008
I meant the biblical Job.
PvM · 1 October 2008
Dale Husband · 1 October 2008
Who is this chunkdz and why is he providing so much entertainment to us with his childish insults and his total inability to understand basic concepts in biochemistry and genetics?
Yawn.
wad of id · 1 October 2008
chunkydisease is a member of the Mama Gene fan club. His job as a peon is to disrupt all discussions about his Mama's screw ups by burying it with irrelevancies. He doesn't have to think, he just needs to type.
BTW, as I noted earlier in this thread, he was not the first of the fan club to employ this technique.
You can read about Guts here: http://helives.blogspot.com/2008/07/now-thats-just-ugly-by-design.html
Guts (aka 'Nelson Alonso') visited the AtBC forum recently and tried to sink a discussion about Mama Gene and her fascist moderation techniques. Except, as it is apparent, everybody noticed what a jackass he was. LOL
David Stanton · 1 October 2008
In reference to the error minimization criteria relative to other criteria chunky wrote:
"Who ever said that it was more “valid”?"
Your claim was that it was the "best of all possible codes" and that it represents a "global optimum". My point is that, even if that were true (which it isn't), it would only apply to one criteria. Evolutionary theory can easily account for the observation and indeed the authors do just that.
Now, if the criteria is not more valid than any other as yourself imply, then the code is demonstrably not the "best" and demonstrably not "optimum" with respect to other perhaps more valid criteria. Therefore, once again, you have no point to make whatsoever. Glad we cleared that up.
By the way, what does any of this mental masturbation have to do with flagella? That was the topic of the thread. Why do you seem intent on changing it?
wad of id · 1 October 2008
It really hinges on what chunkydisease thinks the "primary function" of a code is. I bet he was about to go off on how codes function as error minimizing systems. In which case he'd be pretty fucking wrong.
chunkdz · 1 October 2008
chunkdz · 1 October 2008
chunkdz · 1 October 2008
chunkdz · 1 October 2008
chunkdz · 1 October 2008
PvM · 1 October 2008
PvM · 1 October 2008
PvM · 1 October 2008
PvM · 1 October 2008
PvM · 1 October 2008
Now, ChunkDZ can argue, as he has attempted, that of course the scientists constrained themselves to look at pathways which were plausible but that requires one to make assumptions about what defines plausible. In science, plausible is guided by a hypothesis about DNA origin and evolution which suggests that prebiotic chemistry guided early DNA code (stereochemistry) only to be later optimized by natural selection. Based on such a hypothesis, the code has reached or is close to optimal, a big win for science. However, ChunkDZ was arguing that this optimum is best explained by 'design' and yet, this would mean that he has to constrain the designer to use exactly the same pathways that evolution would have followed, and thus he has to explain why a designer is to be constrained by such. Since a designer is typically not constrained by historical contingencies, the claim that a local optimum is evidence of design is severely flawed by logic and evidence.
No wonder ChunkDZ is so abusive in his language. Not only has he argued in favor of the strength of evolutionary theory but he has also destroyed his design inference, all because of a misreading of what the paper actually argued.
wad of id · 1 October 2008
Let me get this straight: Chunky didn't read the paper thoroughly. He doesn't even have the basic understanding of the techniques employed by the authors (e.g. he actually thought reading the specifics of PAM were in the paper ROFL). So what is he doing? Evangelizing over a few quote mines?
And for the last time, what does any of this have to do with the bacterial flagellum?
Ban the fucking troll.
PvM · 1 October 2008
chunkdz · 1 October 2008
chunkdz · 1 October 2008
chunkdz · 1 October 2008
David Stanton · 1 October 2008
“the canonical code is at or very close to a global optimum for error minimization across plausible parameter space.”
OK. We all agreed to this days ago. What is your point?
chunkdz · 1 October 2008
PvM · 1 October 2008
wad of id · 1 October 2008
wad of id · 1 October 2008
BTW, dipshit. Tell us what is the PAM and how the authors used it to determine optimality.
PvM · 1 October 2008
PvM · 1 October 2008
chunkdz · 1 October 2008
wad of id · 1 October 2008
No you fuckface. The section describes "problems with PAM" but it doesn't actually describe what it is. What is it? How does it "measure amino acid similarity" and "overcome these potential problems"??
You're dodging the fucking question. That's why we should ban you.
chunkdz · 1 October 2008
chunkdz · 1 October 2008
David Stanton · 1 October 2008
Well at least he isn't stupid enough to mix up the terms your and you're. Now that's stupid.
Dale Husband · 1 October 2008
PvM · 1 October 2008
Dale Husband · 1 October 2008
And since we are supposed to be morons, chunkdz, perhaps you can help us monkey brains by making a long, coherent statement critiquing everyone else's positions in a proper scientific manner.
When you nitpick individual points like you've been doing, you waste your time. Clearly, you have never read a science journal, so you don't understand why we all have been laughing at your grade school theatrics.
wad of id · 1 October 2008
You're still not answering the question. You have a sentence which describes what PAM does, but not what it is. Yes it is derived from substitution frequencies. But how?
That's like saying what is a cake? and then answering: "It's derived from flour". Or Q: "what is the first law of motion?" A: "It's derived by Newton." Q: "Who's Jesus?" A: "It's derived by God." LOL, 3rd graders know better than put an answer like that on a test. At least they've the know-how to make something else up.
So, once again dodged the fucking question.
I'll give you a hint where you might begin to find it. The authors helped you out right there. It involves you (*gasp*) reading a bit more.
Think you can handle that?
wad of id · 1 October 2008
Here I'll dumb down the question even more: what does this "matrix" look like? Tell me what goes into each cell of the matrix.
chunkdz · 1 October 2008
chunkdz · 1 October 2008
chunkdz · 1 October 2008
David Stanton · 1 October 2008
Yea right. Quoting a paper means it must be true. I already explained to you that if the authors actually made this claim that they would be wrong. What part of that post did you not underrstand? You can repeat it all you want, but that won't make it ture.
Man, this is like saying I have the best possible mother. Of course you do - given certain arbitrary criteria. Other than that, even the concept is fundamentally flawed.
Of course you already know all this. You have just been too buzy making up lame insults to recognize it. Besides, you still have made no point at all. Even if your argumewnt is somehow correct - so what?
chunkdz · 1 October 2008
wad of id · 1 October 2008
Ban the fucker.
wad of id · 1 October 2008
wad of id · 1 October 2008
wad of id · 1 October 2008
Take any modern programming language.
What do you look for:
Compile speed? Yup
Profile size? Yup
ByteCode optimization? Yup
Error minimization? Nope
wad of id · 1 October 2008
PvM · 1 October 2008
wad of id · 1 October 2008
It be just as fun to see him run back to his little groupie whining about his ass-whopping here.
PvM · 1 October 2008
wad of id · 1 October 2008
wad of id · 1 October 2008
Or maybe he was distracted by how to make the flagellum using a poop-shoot?
PvM · 1 October 2008
chunkdz · 1 October 2008
wad of id · 1 October 2008
chunkdz · 1 October 2008
wad of id · 1 October 2008
A moron like me schooling a shithole like you.
wad of id · 1 October 2008
Y'know chunky I should be more grateful to you. Thanks to your hard-earned tax money, I get to spend it all day long on the Internet trying to teach something to people you.
Don't ya just wish you had the some privileges I do? LOL
wad of id · 1 October 2008
chunkdz · 1 October 2008
tresmal · 1 October 2008
chunkdz: One simple yes or no question: Do you believe that this paper provides at least a little bit of evidence in favor of ID?
Looking forward to your reply which will no doubt be laced with your famous arch Wildean wit.
chunkdz · 1 October 2008
PvM · 1 October 2008
Dale Husband · 1 October 2008
PvM · 1 October 2008
Dale Husband · 2 October 2008
wad of id · 2 October 2008
wad of id · 2 October 2008
BTW, the bacterium E. coli. mutates everyday in your gut, far more frequently than the ASCII code. It improves itself to the local conditions of your gut flora by the hour as you subject it to toxins, antibiotics, changes in acidity, various nutritional media, etc...
So does that mean the E. coli wasn't an "optimal design" like the genetic code?
LOL. I love to Design-think. It's so easy, it's like masturbating.
wad of id · 2 October 2008
Now, here's another aspect of the "error-minimizing" character of the genetic code that is quite unlike how Human Designers operate. Y'see the genome is still quite sensitive to mutations, despite the error-minimizing nature of the code. Take cystic fibrosis. It is a disease in a chloride channel that is most commonly caused by a mutation... a deletion in fact. Because of the deletion, patients with this disease are subjected to recurrent infections of their lungs, poor absorption of nutrients, long courses of antibiotic treatments that eventually select for a superbug, and overall poor quality of life and lower longetivity. Optimally designed to torture someone, wouldn't you say?
But why does an "error-minimizing" code not minimize errors like these? In English, we tolerate errors like this all the time. Watch:
Chnkydeas is qte the fkng mron.
You all know what I was trying to say. ROFL. But why? Because we have built in a system of contextual interpretation. We can extrapolate the closest sense of the word based on experience. This robust system is not in place in the genome. Why? Because it was really not intelligently designed. All proteins have motifs, yet it is extremely sensitive to the location of key amino acids in key positions, just like our recognition of English words are subject to recognizable letters in key positions. Yet the genome does not design to optimize robustness on the level of functional motifs. Go figure.
Here's another way in which the "optimal design" of the genetic code is not quite so optimal. Frame-shift mutations are known to be disastrous mutations. Here, you add or subtract less than a codon's length of base pairs. All of the sudden all the subsequent codons are whacked. Once again, suboptimal. But this problem could easily have been worked around. You could add "spacers" between the codons: unique nucleotides that are required to be present in a specific position to be read by the RNA machinery. Otherwise, it skips over it. In other words, you would make a 4-bp based code: XXXY, where XXX are your standard ACTG, and Y can be anything, but is fixed and the same throughout. Now consider the following DNA sequence based on this improved code:
AAGY TTTY CCTY CGTY ATCY ACGY GTCY
If you obtain a mutation that normally would cause a frameshift, say a deletion, you'd get something like:
AAGY TTTCCTY CGTY ATCY ACGY GTCY
Now the RNA machinery comes along and recognizes in the 2nd codon that there is a missing the Y. It skips reading this codon and moves on to the 3rd codon, resulting in either a missense or deletion mutation of codon 2. In the other scheme, all the other codons downstream of this one are fucked. You just have garbage instead of a less disastrous deletion/missense.
Look at that, in the span of 15 minutes, I've just "improved" on the genetic code. Says quite a bit about how much thought the Designer gave this coding scheme, eh?
BD Knight · 7 October 2008
Entertaining, but nothing much of substance in the comments.
Oh, science proves negatives all the time, contrary to what chunkdz said. E.g., Earth is not the center of the universe. There isn't a black hole in the center of the Earth.
We also like to use Modus Tollens to prove negatives.
It seems the new post on this thread has addressed all of chunkdz's concerns.