JOHN PAUL
Pat:L
The fact is, irreducibly complex features exist in living things.
John Paul:
Yes they do. A Rube Goldberg machine is also IC.
Pat:
We have even seen at least one of them evolve from simpler features.
John Paul:
What one? Please post the peer-reviewed reference (or any reference). How do you know what ‘evolved’ was considered IC?
Behe’s point is that the Darwinian step-by-step evolution of apparent irreducibly complex bio-chemical systems mentioned in his book is not discussed in peer-reviewed literature. And as stated in other posts, this is still a challenge, not a refutation. The challenge still appears to be unmet…
That said, Behe has taken time to respond to his critics. I’m sure you are familiar with the link. (See below in my response to Mr. Ben)
Pat:
"Irreducibly Complex" does not mean, "could not have evolved".
John Paul:
Irreducible complexity means “could not have evolved via Darwinian step-by-step processes”. IC goes hand-in-hand with
minimal function to show just how very difficult the task is for the alleged mechanism for evolution. That is if the evolutionary process started at some very genetically simple single-celled organism (or population(s) of organisms).
The point is- evolved from what? Evolutionists aren’t very clear on this.
Pat:
Let's talk about why.
In the coastal areas of Europe are prehistoric structures of the megalith
culture, older than the Egyptian civilization. Among the structures made of
huge stones are chambers roofed with corbled vaults. Boulders where placed
together in such a way that the force on the roof is directed outward, to
the load-bearing walls. Take even one boulder from the roof, and it all
collapses. It is irreducibly complex; even one deletion from the structure
causes it to fail.
John Paul:
Is the minimal function of each step of the building process in any way related to the minimal function of the finished product? IOW, if the finished product’s function is for people to live in or gather in, and the only function of the intermediate steps is to achieve that goal, how can that be used as an example of Darwinian step-by-step processes used to achieve perceived IC?
If this is what occurs in living organisms it would be evidence for Dr. Spetner’s
Non-random Evolutionary Hypothesis in that it would appear to be a directed function.
Pat:
Yet these were built by humans with nothing but muscle, simple tools, and
ingenuity. The evidence is that they were built over mounds of earth, which
were then removed. The boulders precisely set to hold each other in place,
then formed a stable roof.
John Paul:
Yup, design is one way to get around perceived IC and that is what Pat has shown. Thanks Pat.
Is that how evolution works? By building something it can’t use until it is finished building it? How would NS know what it (the organism) is building? And why would the intermediate steps be selected, unless NS was also privy to the ‘plans’?
No wait, I got it. The organism called the psychic hotline to find out what the environment was going to be in the future. Armed with that information it directed the population to concentrate so that they could collectively recombine their gene pool for the best chance of survival. We already know single-celled organisms can communicate and work together (slime molds and other colony-like adjustments are good examples of this), so except for the psychic hotline bit, it could work. But that would be a sign of directed mutations and would also be support for Dr. Spetner’s non-random evolutionary hypothesis.
Pat:
A similar situation is seen in biochemical systems. The present pathway
might be irreducibly complex, but it could easily have evolved from a non-IC
system.
John Paul:
But on the other hand we have Dennett stating in the PBS series
Evolution that there is no way to predict what would be selected for at any point in time. If a population of organisms could duplicate a gene that also provides an immediate benefit to the organism, it would be foolish not to look at the implication of directed mutation. That is an organism sensing its environment and purposely (through some as yet unknown triggering mechanism) causing a recombination that allows the population to better survive.
Otherwise you would have an organism ‘building’ something it may not need because of the shifting eco-system. What would happen to neo-Darwinism if the bulk of (or any) mutations were found to be environmentally cued (i.e. directed)?
Pat:
A second protein might greatly enhance the activity of a pathway,
even as the origional pathway still worked. And later, that less-efficient
pathway might disappear, leaving a "roof" that seems mysterious until one
thinks about it for a bit.
John Paul:
Many things seem to work on paper. It is when reality comes knocking that the door remains closed.
How did organisms evolve the ability to duplicate genes?
Did anyone notice? Even with the observed gene duplications, and alleged benefits directly therefrom, the organism that they are observed in remains pretty much the same.
What are evolutionists going to do now that DNA has been knocked off of its lofty perch? (See the article
Unraveling the DNA Myth linked to below)
Mr. Ben:
Barb has put his finger on the fundamental blunder of Behe's irreducible complexity. The proponents of irreducible complexity have neglected to take into account the fact that evolution can 'remove' structures in a step by step fashion as well as 'add' them.
John Paul:
Is that so? Did you read Behe’s
Darwin’s Black Box? If you had you would know that he flat out states that the apparent IC could be overcome by ‘front-end loading’ in the original populations of organisms. This would mean recombination and deletion of already existing genetic information could achieve perceived IC.
No proponent of IC that I know of makes that alleged ‘blunder’, Mr. Ben. If you have evidence to the contrary please present it.
Mr. Ben:
Every supposed structure demonstrating irreducible complexity seems to depend on this blunder. If we 'remove' a component from the system, will it still work? Yet IC proponents never seem to take into account that sometimes evolution takes away componets, it does not always add. This is a major mistake in IC thinking because it neglects a common and important aspect of how evolution through genetic mutation and selection actually operates. And you just can't have a theory that just ignores an inconvenient major fact.
John Paul:
Are you saying that the vision system is actually a system that evolved by subtracting genetic information from that alleged simpler common ancestor that started the evolutionary process? How about the blood clotting cascade?
Perhaps Mr. Ben could give us an example of something proclaimed to be IC (biology/ molecular biology), that has been shown to be the product of the mechanism he just described. Creationists already know that beneficial mutations are also mutations that take something away from an organism. Take away a beetle’s ability to go airborne and that mutation keeps the beetle from getting wind-blown off the island it inhabits and into the sea where it would not survive. Therefore the beetle with that mutation will have a better chance of surviving and mating. Unless of course all possible mates went airborne during a hurricane. Crabs at the depths of the ocean without eyes they can’t use anyway and the same with fish populations isolated in light-less caves.
Beetle bloopers: Even a defect can be an advantage sometimes
http://www.answersingenesis.org/docs/241.asp
and
New eyes for blind cave fish?
http://www.answersingenesis.org/docs2/4361news8-9-2000.asp
Mr. Ben:
In experimental evolution, we have structures that are constantly evolving in stepwise fashion, developing mutual dependencies, then losing their previous independent functionality.
John Paul:
Do you have references? This would be interesting to read about.
Mr. Ben:
If we see this happen regularly before our very eyes in these experiments, what are we supposed make of similar structures in extant biological organisms.
John Paul:
I’m not sure we do observe this regularly in any experiments. If you provide the references we could check it out.
Mr. Ben:
Are we supposed to believe that these same types of genetic structures are somehow magically different from those we see develop in experimental genetic systems?
John Paul:
I guess that would all depend on the experiment. What was involved, what initial conditions were necessary, what intervention was necessary, etc.
Mr. Ben:
Are we supposed to somehow deny what it is that happens right in front of us in experiment after experiment?
John Paul:
I guess
if it really does happen like you say we shouldn’t deny it. But somehow I don’t think Dr. Behe is the buffoon you would have us believe.
Mr. Ben:
That's what we would have to do in order to believe that somehow IC isn't an automatic part of evolving systems. We would have to ignore and conceal the fact that it actually produces IC all of the time.. in spades.
John Paul:
Please point us to the peer-reviewed literature that shows the IC systems discussed by Behe are really not IC at all. The following is an article by Behe that you may want to read first (read the full article, not just the abstract):
A Response to Critics of Darwin's Black Box
http://www.iscid.org/ubb/ultimatebb.php?ubb=get_topic;f=10;t=000010
Mr. Ben:
Experiment trumps any claim. If we produce the exact same types of irreducible complexity experimentally, and we watch step by step how it evolves with the development of scaffolding, mutually independent systems, etc. we simply can not take seriously the notion that it is impossible. Reality trumps theory.
John Paul:
So I take you are going to produce the references I asked for. Also remember Behe’s idea is IC and minimal functionality evolving in Darwinian step-by-step fashion.
Did I mention that DNA isn’t all it was once cracked up to be?
Unraveling the DNA Myth:
http://www.mindfully.org/GE/GE4/DNA-Myth-CommonerFeb02.htm
God Bless,
John Paul