Intelligent design news from the 28th of April to the 18th of May, 2011.
Finally! It's back again, your fix of ID news and discussion. To make up for my three-week-long absence, this post will cover five of the top ID blog posts from the past three weeks. Lucky for me then that it hasn't been an especially busy time for the ID community during my break - otherwise I'd have a much bigger job on my hands.
Anyway, enough grovelling, let's get into it.
Today's posts are about Osama bin Laden and junk DNA, Oxford University and evolutionary mathematics, dissent in the evolutionary ranks, enzyme evolution, and, of course, junk DNA.
69 Comments
hiero5ant · 18 May 2011
What.
The.
Monkeyballs.
Klinghoffer is *literally* casting doubt on the evidence that bin Laden is dead. The DNA similarities *could*, after all, be a product of intelligent reuse for a common design.
Mike Elzinga · 19 May 2011
harold · 19 May 2011
The Klinghoffer quotes about "junk" DNA were brought up at another thread quite a few weeks ago. To summarize - 1) The nucleotide sequences of genes are constrained by natural selection, whereas the sequence and volume of "junk" DNA don't seem to be, which is why it is more variable from individual to individual, and why sharing of alleles between individuals can be more confidently assigned to genealogy; the forensic uses, in short, are based on and reinforce the fact of its different nature from genes. 2) We have a very good idea where some of it came from and how it spreads itself throughout the genome. For full disclosure, I don't particularly like the term "junk" DNA, as it has a teleological/anthropomorphic flavor to me (subjective), but use it because it has become the standard.
Klinghoffer's comments about mathematics and natural selection are merely based on a very typical creationist quote mine.
Here is how the quote continues (emphasis mine)...
"...However, mathematical population geneticists mainly deny that natural selection leads
to optimization of any useful kind. This fifty-year old schism is intellectually damaging in
itself, and has prevented improvements in our concept of what fitness is. One underlying
cause is that the link between natural selection and fitness optimization is much more
sophisticated than the usual optimization principles associated with dynamical systems,
namely Lyapunov functions and gradient functions."
In fairness to Klinghoffer, the language of the Oxford quote also seems misleading to me. I am ready to stand corrected, but I have never heard of any population geneticist denying that by definition, alleles which are selected for increase in frequency in a population (nor does the quote say that they do, but an unsophisticated reader could get that impression). To my eye the Oxford quote subjectively exaggerates the level of "controversy" in order to make the position sound especially exciting.
John Kwok · 19 May 2011
DS · 19 May 2011
Harold wrote:
"In fairness to Klinghoffer, the language of the Oxford quote also seems misleading to me. I am ready to stand corrected, but I have never heard of any population geneticist denying that by definition, alleles which are selected for increase in frequency in a population (nor does the quote say that they do, but an unsophisticated reader could get that impression). To my eye the Oxford quote subjectively exaggerates the level of “controversy” in order to make the position sound especially exciting."
Once again, you are correct sir. Assuming that Klinghoffer is referring to the neutral theory, there is absolutely no conflict whatsoever between this and natural selection. More specifically, the neutral theory explains the amount of genetic variation we find in natural populations. This in no way implies that natural selection cannot or does not operate or that favorable alleles do not increase in frequency due to selection. It is simply a consequence of the fact of random mutations in a genome filled with sequences that are not under strong functional constraint. This is of course exactly what is predicted if random mutations and natural selection have shaped the genome.
With regards to DNA fingerprinting and genetic markers for forensics, we know precisely what the genetic mechanisms are that generate the variation and we know that the variation is not functionally constrained for the loci that are commonly used. Once again, this is exactly what one expects if random mutation and natural selection have shaped the human genome. We take advantage of this knowledge in choosing the loci that are most helpful for individual identification purposes. Any creationist who tries to claim that any of this is evidence of anything but random mutation and natural selection is lying.
Science Avenger · 19 May 2011
DS · 19 May 2011
The Klinghoffer claim is just more of the same old creationist nonsense. Any time the predictions of evolutionary theory are proven correct by new evidence, this is somehow proof that evolution is not true. Klinghoffer claims that evolutionary theory predicted that "junk DNA" would exist. Now, when" junk DNA" is successfully used for forensic testing, this is somehow a problem for evolutionary theory!
News flash for you Einstein, DNA fingerprinting has been going on for many years. We have known about the existence of hundreds of thousands of STR sequences in the human genome for a very long time. Most of them are under no selective constraint. Indeed, of the thirteen core loci used for CODIS, only one of them is even in a region of a chromosome that displays any background selection at all. That is is fact one of the criteria by which the loci are selected for use in forensics. Selection would violate the assumptions of forensic testing and significantly alter the probability of a random match. So once again, evolutionary theory is confirmed by empirical evidence, in this case forming the basis of an entire field of science.
And this in no way invalidates the fact that selection also occurs in other areas of the genome. Indeed, there is evidence for selective sweeps in many regions of the human genome since the time that humans and chimps last shared a common ancestor. That is how humans evolved.
Of course, I can provide references for all of this if anyone is interested. Suffice it to say that Klinghoffer is once again tilting at windmills that he can't even see through his tainted sunglasses.
ATHEISTOCLAST · 19 May 2011
harold · 19 May 2011
mrg · 19 May 2011
6: He also rants, sulks, and throws tantrums a great deal.
Atheistoclast · 19 May 2011
Karen S. · 19 May 2011
Dale Husband · 19 May 2011
Frank J · 19 May 2011
Frank J · 19 May 2011
DS · 19 May 2011
Atheist wrote:
"Actually, I would say that most evolutionists think that, with enough time, anything can evolve into anything else."
Great. Then you won't mind providing a reference now will you. Because this is exactly the opposite of what every evolutionary biologist I know claims.
Stanton · 19 May 2011
TomS · 19 May 2011
I wonder how many evolutionists think that a shmoo can evolve, or a roc, or a centaur.
Such things can only be designed.
Frank J · 19 May 2011
Atheistoclast · 19 May 2011
Atheistoclast · 19 May 2011
Didn't Jerry Fodor attack Darwinism because of the fallacy of supposing that pigs could evolve wings and take to the skies?
Why can't pigs fly? Are they just too fat? Why can't humans sprout wings and become angels? I would love to be able to fly to work every morning.
If you lot think a dog-like creature like Pakicetus can evolve into a blue whale through some genetic mutations then you can believe anything. As Dembski has said, the transmutation of species is essentially "alchemy".
DS · 19 May 2011
Atheist,
So that would be a no. You don't have any reference whatsoever to substantiate your bullshit. You just made shit up and expected everybody to believe it. You have no idea what evolutionary theory is all about and yet you try to represent yourself as some kind of expert. Complete ignorance or blatant dishonesty are your only possible excuses. No one cares which excuse you use.
Jack,
Do yourself a favor and banish this guy to the bathroom wall now. He hasn't made a comment about the topic of the thread and it is obvious h=that all he is trying to do is disrupt the conversation.
Dale Husband · 19 May 2011
Paul Burnett · 19 May 2011
Karen S. · 19 May 2011
John Kwok · 19 May 2011
John Kwok · 19 May 2011
Nomad · 19 May 2011
fnxtr · 20 May 2011
Dave Luckett · 20 May 2011
Probably the heaviest animal ever to fly - defined as having the sustained capacity to use naturally generated lift to increase height in air - was the late Cretaceous pterodactyloid pterosaur Quetzalcoatlus. Estimates of its weight are very problematical - maybe about 120-150 kg. A minority of current expert opinion puts the weight at over 200 kgs. This range puts it more than a quantum leap beyond the heaviest current sustained flyer, either the Kori Bustard or the Great Bustard at about 15-18 kgs. It probably generated lift from wave forms like a modern albatross, or relied entirely on thermals.
One or two current researchers even believe that the animal was flightless, despite its clear adaptations for flight. This appears to me to be more a rejective reaction to the idea that an animal so large could fly, than anything else.
For the fact is that Quetzalcoatlus was extremely highly adapted for flight - yet it was still a tetrapod, which illustrates how evolution actually works. A large terrestrial animal did not grow wings as extra limbs and fly. A small climbing animal evolved gliding surfaces that natural selection refined into true wings that further natural selection hyperdeveloped to exploit a particular niche, while other environmental factors favoured increased size. This process continued until an extremely specialised and highly developed form was reached that pushed the boundaries of the physically possible, yet did not vary the basic body plan of all vertebrates.
Rolf Aalberg · 20 May 2011
Karen S. · 20 May 2011
Atheistoclast · 20 May 2011
Dale Husband · 20 May 2011
Atheistoclast · 20 May 2011
DS · 20 May 2011
harold · 20 May 2011
Just Bob · 20 May 2011
Atheistoclast · 20 May 2011
DS · 20 May 2011
So that would be another no. He has no intention whatsoever of ever trying to support his claim that "evolutionists" believe that any organism can evolve into any other. Since that's obviously completely false, I guess that was inevitable.
And that would also be a no, he has absolutely no intention of ever making any comment about the actual topic of the thread. He just wants so to derail the conversation with his worn out nonsense about gene duplications, a process that he obviously doesn't understand any better than he does the rest of evolutionary theory.
The bathroom wall is the only appropriate place to respond to such trolls.
Atheistoclast · 20 May 2011
DS · 20 May 2011
mrg · 20 May 2011
John_S · 20 May 2011
Atheistoclast · 20 May 2011
mrg · 20 May 2011
It's sort of a cousin to the "if monkeys evolved into humans, then why are there still monkeys?" argument.
The Earth evolves, right? Are there mountains where there were once oceans? Are there deserts where there were once forests? Yes. Can we say that certain mountains will sink into oceans, or that certain deserts will become forests again? They could, but who knows?
Creationists keep complaining about evolution being an undirected process, but the fact that is is undirected inevitably, obviously means that it is unpredictable. Nothing may really change; if something does change, it's out of any one of an indefinite range of possibilities, and the only thing we can say for certain is that the possibilities are constrained by the adaptational baggage currently carried by the species involved.
mrg · 20 May 2011
eric · 20 May 2011
Frank J · 20 May 2011
To Lurkers:
Please note the intense irony of someone whining that moving some of their comments to the Bathroom Wall is "censorship," while conveniently omitting that "Uncommon Descent" (a major ID-promoting blog) regularly deletes inconvenient comments and bans those that leave them.
To the Regulars:
Do we know whether this troll agrees with those IDers who admit that life is billions of years old and that humans share common ancestors with other species?
harold · 20 May 2011
harold · 20 May 2011
Mike Elzinga · 20 May 2011
QED_99 · 20 May 2011
Mr A,
Could you please give an example of the appearance of a "novel function", according to your own definition of "novel"? Please include a description of the genetic changes responsible, and the associated differences in phenotype.
What period of time do you believe was necessary for the example above to occur?
Do you believe in divine guidence of the biochemical mechanism responsible for your example, or that the appearance was "magic and mystery"?
Stanton · 20 May 2011
QED_99 · 20 May 2011
Stanton · 20 May 2011
QED_99 · 20 May 2011
It would be refreshing if at least now and then the science-deniers, religious extremists, and other assorted big-tent ideological rabble would have the balls to just stand up and say, "This is what I believe, this is how I think it all happened" instead of sniping at strawmen then whining about being treated badly.
It's amusing to me that religious cranks like A always accuse unbelievers of leading empty lives. What joyless, sterile lives they themselves must lead - incurious, unable to feel any real joy from discovery, prisoners of their willful ignorance and dogma.
Anyway, maybe I'll get lucky and he'll answer with full disclosure, not with what can't be, but with the Big Story from his perspective. I know...I know...
Henry J · 20 May 2011
Frank J · 21 May 2011
Mike Elzinga · 21 May 2011
mrg · 21 May 2011
ATOC seems to be ideologically inclined to strong fundy creationism, covered by a layer of ID creationism evasiveness, mixed with an unusual level of belligerence.
I've long been bemused by how being emphatic is so compatible with dissembling. (Somehow, I cannot use the word "dissembling" without thinking of R@ndy St1m$0n.)
harold · 22 May 2011
mrg · 22 May 2011
When ATOC resorted to the "if evolution is true then animals should have evolved something or other I pulled out of my hat" argument, I kind of smelled YEC. It's the brother of a Ray Comfort crocoduck argument.
Stanton · 22 May 2011
fnxtr · 22 May 2011
Rolf Aalberg · 23 May 2011
John Kwok · 24 May 2011
Frank J · 25 May 2011
Pete Dunkelberg · 1 June 2011
If you have time for a comment or two, check out Jack's place:
http://www.naontiotami.com/2011/05/these-weeks-in-intelligent-design-180511/
By the way, does that job description write-up from Oxford remind you of a press release for a paper? (meaning, the writer can't help making a hash of it)