Ivellious wrote:Irreducible complexity is a dead argument, Stu...It doesn't work as a scientific argument. It's been tried for a long time by saying "Even simple constructs are too complex to have arisen in a step by step process." But, one of the most commonly used examples of this argument, the flagella in single celled organisms (which is deceptively complex in the mechanism it uses to move the cell), has been broken down by evolutionary biologists into every step that could have been taken via natural selection...Essentially, the best example that the irreducible complexity camp uses has been shot down numerous times.
No. They have made attempts at shooting it down, but come no where near close to doing so. From the time
Darwin's Black Box was first published there has been but one attempt to explain how the flagellum
might have arisen through neo-Darwinian processes. That in itself has been shown to be inadequate.
So I'm really not sure what exactly you are refering to? Could you please point me to these "numerous times" that IC has been shot down. If you're refering to Ken Miller's arguments, well that is nothing of the sort. The gist of his argument is something along the lines of: because you can remove the carburetor from a car and use it in a motorcycle, the car is therefore not irreducibly complex. That of course is wrong -- remove the carburator and you simply have a non-functional heap of metal. This of course would be discarded through natural selection within the neo-Darwinian framework.
The other problem with all these concepts and attempts to "debunk" evolution is that they like to label evolution as being "Darwinism" or that we are using 150-year old science that is outdated or whatever. The reality is that, while Darwin was the father of evolution by natural selection, most of his conclusions and the ideas in On the Origin of Species is regarded as wrong by modern day science. The only thing we really take directly from Darwin's work is the concept of natural selection and the novel (at the time) idea of evolution. He was a brilliant guy and deserves the credit for evolution becoming a legit science, but really his ideas and observations just got the ball rolling for future scientists to test and revise his concepts into a more accurate and scientific theory. So anyone trying to use Darwin and his book and use that as the evolution you are debunking is wrong because scientists debunked most of it a long time ago.
"Darwinism" is simply a term used to describe the specific form of evolution we are refering to, namely, common descent through minor modifications to DNA over time, shaped by natural selection. ie.
neo-Darwinism, or the modern evolutionary synthesis that occured around the 1950's incorporating Mendelian genetics and the many other advancements in modern science.
Of course I'm not refering to Darwin's original ideas, hence neo-Darwinism. Consider the term "Darwinism" an abbreviation for the paragraph above.
Also, I'm not sure I understand the study you reference here. Did he honestly infect people with HIV and malaria and rest every cell in their bodies? Or is this just some kind of pseudo-simulation where he just crunched some numbers? Over what time span? Is there somewhere online that I could read it?
Yes that might be a good idea. Not to be overly harsh, but denouncing his work without having much knowledge thereof seems to be arguing from ignorance, no?
Of course not... we have been studying and sampling these organisms and their makeup for decades.
Are you suggesting comparative studies are worthless -- in that case Lenski's experiment is in itself a 20-year waste of time.
Behe himself received his Ph.D in biochemistry in 1978 for his dissertation work on sickle cell hemoglobin; he's not some hack who read a couple papers one day and suddenly decided life was designed; in fact for the longest time he was a supporter of evolution.
As far as why scientists don't widely regard Behe's work as science...It's because his work on Intelligent Design and his anti-evolution campaign are wholly unscientific. I've read a little bit by him. He basically lives and dies on "thought experiments," which is basically just another word for philosophy in this case. Because he can't experiment or test his ideas, and because no one can test or experiment to try to disprove them,
Well now you're treading in interesting territory, because the same can be said of much of evolutionary thinking. Homology, common descent, macro-evolution are all thought experiments; or philosophy.
Remember in many instances Behe utilised the data from experiments that Darwinists themselves use, like Richard Lenski's 20-year evolutionary E. coli experiment (which equates to around 1 million years of human evolution). So yes, his ideas can, and have, been tested many times over in the lab and in nature itself.
Vastly accelerated reproduction cycles and immense population sizes of the HIV, malaria and E. coli pathogens provide us with the best tesable cases for just what neo-Darwinian evolution can and has (ie. drug resistence, most significantly Chloroquine) achieved; and what it cannot -- specific
multiple amino acid arrangements, ie. overcoming sickle cell hemoglobin.
In other words that "ceiling" of two protein binding sites is the limit of what neo-Darwinian evolution can achieve.
there is no actual scientific literature on his view of ID.
What do you mean by this?
There is plenty of scientific literature on the functioning of the flagellum or cilium.
Has the genome of HIV, malaria and E. coli not been fully sequenced?
Hence, real scientists don't pay attention to him.
Well that's where you're wrong; no doubt most evolutionary scientists would disagree with Behe -- make no mistake evolution is very much a secular religion, so I wouldn't expect evolutionary proponents to agree with him. Take a look at what Professor Michael Ruse has to say on the subject, at least he's honest about it.
Speech at the Annual Meeting of the American Association for the Advancement of Science:
http://www.arn.org/docs/orpages/or151/mr93tran.htm
There are many "real scientists" who agree with him.
That's not to say he hasn't published scientific items before, he most certainly has...but none of it has anything to do with ID or evolution.
I'm not following, could you clarify?
For the record I don't agree with everything Behe has to say
I'm happy to continue this if you like but perhaps a new thread might be in order, don't want to derail thread too much as I'm sure Dallas would appreciate some answers to his questions.