Brian Miller: Co-option and Irreducible Complexity

Design

(Mikkel R.) #148

I’m sorry but no, that’s not a fact. The fact that some watches were designed does not prove that any imaginable watch has to be designed. It just doesn’t follow.


#149

ok. so a (self replicating) watch can evolve naturally according to evolution.


#150

The sun’s shadow is a watch. Tides are a watch. The phase of the moon is a watch. The first watches used by humans were found in nature.


(Dan Eastwood) #151

@Argon beat me to it. Anything casting a sun-shadow can be used as a sundial. We also see examples of circadian rhythms, which are a natural sort of living clock.


#152

we actually talked about somehing like this:


#153

@gbrooks9, what is the difference between that and Intelligent Design?


(George) #154

When Christians spoke about God as creator of the Universe BEFORE ID was a formal entity… THAT is the topic of Creation… without the poisonous content of I.D.


#155

What about the poisonous content of Creationism, does that not also concern you?


(George) #156

@Mung

If Creationism itself was toxic, how could Joshua write a whole book about Adam and Eve conceivably being made by means of the Special Creation of god?


#157

I love your reasoning, but I’m not sure Joshua appreciates your worship of him. And scientists write stupid and toxic books all the time so that’s really not a defense.


(George) #158

@Mung

If you love my reasoning… you should have ended your post with that thought .

Discussing God as the designer of the Cosmos is OBVIOUSLY not the same as discussing the premises of I.D.

If they were the same, there would not have been a need to invent the term I.D. (!!!).

Postscript!:
If YOU oppose special Creation so adamantly, what are you doing at PeacefulScience.Org?


#159

It was sarcasm. Joshua believes it, therefore it cannot be bad, is simply absurd.

Why not call the site Peaceful Creationism, more in keeping with what it is really about?


(George) #160

@Mung

My apologies… I totally missed your sarcasm font.

My reference to Joshua’s work is not because I am defending the principle of “If Joshua believes it, it cannot be bad”.
No. That would be silly.

I reference Joshua’s work because, unlike you apparently, I am here to ADVANCE Joshua’s work. While a great many of our colleagues here seem more intent on hijacking the discussion machinery (dedicated to the question of how much Special Creationism and Evolution can co-exist in the Biblical scenarios) - - so they can discuss Evolution-without-God, or Scientific-Proof-of-Design, or a whole host of other topics that do not advance the work of this site, but actually further entrench the polarized discussions we have all participated in for the last 2, 5, 10 or 50 years!

Calling it Peaceful Creationism is not really the point, wouldn’t you agree? If we advance both Special Creation AND Evolutionary processes as methods of creation used by God, using the term “Creationism” would either be deceptive or off-point. This site is just as much about including scientific evidence in Biblical discussion as discussing miraculous creation as part of understanding the emergence of humanity into the historic (i.e., written) epochs!


#161

Sounds like Peaceful Creationism would be much more appropriate. The site is less about getting Creationists to peacefully accept science and more about getting scientists to peacefully accept creationism.


(George) #162

@Mung

Your instincts for public relations could use a little remedial work …

I am not worried about what Scientists say … they already accept the
reality of the evidence for Human evolution. I am much more worried
about Creationists, who in the aggregate are running wild through the
Electorate, sending poorly prepared men and women into Congress and
the Courts.

So… if you were having problems with American Indians, would you
write a book called “Precious American Cavalry Battles”? Or would you
write a book called “America’s Misguided Wars Against Indigenous
Peoples”?

Peaceful Science is intended to be a LESS bellicose version of the
scientific community regarding religious interpretations of human
history…

Speaking of which, you could probably benefit from re-read a few
chapters of this kind of thinking.


(Brian Miller) #163

The proteins used in the injectisome (aka T3SS) mentioned by Berg are different from those used in the flagellum, but they play synonymous roles. And, the injectisome appeared later in history than the flagellum.

A literature search seems to reveal that the flagellar proteins play no other role in the cell, so selection could not help preserve them until a minimal set arrived.


(Brian Miller) #164

The conflict is in assumptions. The first difference between an ID analysis of the evidence and materialist scientists’ analysis is that the latter assumes that homologous proteins in different taxa evolved from a common ancestor through undirected processes. As a consequence, they compare the differences between different proteins or between the same protein in different taxa where the differences in sequences could be dramatic. They then assume that one protein could be gradually transformed into the other. We would not make that assumption since the two different proteins or the two versions of the same protein could represent separate isolated islands in sequence space. Instead, we focus on research which directly studies the limits of change or the actual rarity of functional sequences.

Another assumption of materialists is that observing any change generated by an evolutionary process, or at least an evolution-like process (e.g. abzyme research), justifies the claim that evolution could drive any change of any level of complexity. This logic closely matches that of creationists who study how the flood waters from the Mount St. Hellen explosion generated layering patterns in sedimentary deposits. They argue that the capacity of a violent flood to produce those geological patterns justifies the belief that a massive flood could produce all geological patterns. I mention this comparison not to demean either group but to point out similarities in thinking which could foster healthier dialogue between them.

The experiments I cited which study accumulating mutations resemble evolutionary narratives running in reverse. The structural and sequence differences between flagellar proteins and their hypothetical closest common ancestors are so great that the evolution of the former involves a far different protein sequence entering the vast sea of nonfunctional sequences and then finding some island of functional sequences corresponding to some flagellar protein. The first encounter would be with a barely functional protein surrounded by non-functional neighbors. Then, natural selection could assist in refining the protein, so a sequence would move toward a more optimized performance. This process is vastly more challenging than simply modifying the function of an already existing protein.

The cited experiments demonstrate that the negative impact of mutations and the percentage of harmful mutations increase with the number of accumulated mutations. Note that I am not focusing on what the authors imagine could be true but on what their hard data demonstrates to be true.

The authors discuss how compensatory mutations and buffering effects (e.g. chaperones) could increase the threshold before accumulating mutations destabilize the protein. For instance, the negative effect of one mutation could be undone to some extent by the following one, so the sequence might change significantly more than average with a less negative effect. However, such series of mutations maintaining significant fitness would represent a very narrow corridor in sequence space as judged by the dominance of harmful mutations over compensatory ones.

In general, compensatory mutations and buffering increase the threshold for stability by only a limited amount. After a certain number of mutations, the limit is reached, and the protein quickly loses function with most new mutations. After about 10 mutations in B-lactamase and HisA, the majority of the following mutations are lethal. After several more mutations, nearly every subsequent mutation is lethal. These results are from actual bacteria, so they take into account any buffering effects. The authors argue that the destabilizing trend is a general property of proteins.

As a consequence, the rarity of proteins in the region around any functional sequence is so great that no functional protein could ever be found. For instance, the B-lactamase studies indicate that after about 5 non-synonymous mutations, around 1 in 3 amino acids could be tolerated at each site, so the rarity is almost identical to Doug Axe’s results. The HisA results are even worse. After around 10% of the sequences change for either protein, all functionality, based on their numerical fitting, is permanently lost. These regions are completely devoid of functional sequences. As a consequence, most of sequence space is so sparsely populated with functional sequences that no search could ever find any protein in the entire history of the earth.


#165

Where are the experiments demonstrating that these specific proteins would have to cross a “vast sea of nonfunctional sequences”? That seems to be made up.

I can show you genes that are 40% different and still have the same function.

How were they measuring function? How could they detect a change in function if it occurred?

Doug Axe only looked at beta-lactamase activity. There are many more substrates than beta-lactams. Also, Axe only looked at a few sites within the protein.


#166

What do you believe this would demonstrate? Are you proposing that the two genes are somehow historically related?


#167

Others are claiming that even a small number of changes will do away with function. This is shown to be false by the myriad of proteins that differ by 40% or more but still have the same function.