Carl Woese dead at 84

Posted 2 January 2013 by

I just heard word that evolutionary microbiologist Carl Woese has died. Woese is probably most famous for defining the Archaea, the "third domain of life". Intelligent design proponents have touted Woese's ideas about horizontal gene transfer as a challenge to evolutionary theory, even claiming that Woese argued there were multiple, independent origins of organisms. This was wrong, of course. Almost exactly a decade ago, I asked Woese to give his thoughts on his work and ID. I leave you with some of his comments:

It's basically correct to say that I do not challenge common ancestry per se but rather the concept that there was a single common ancestor cell or organism that gave rise to the three cellular domains of life. In a way my theory is more of a problem for creationists and their ilk than the old way of looking at things -- though those folks do not seem to sense this yet. Special creation starts with a given type of form that may or may not change but in any case remains "true" to its original character. "Intelligent design" seems to see different mechanisms being designed individually, just as an inventor or engineer would do. Well, in my theory none of this is the case. I have no trouble with a claim to the effect that God set the world up so that it progressed in an evolutionary fashion. That would affect my work no more than the belief that God's world was a mathematical world affected Newton's work; one can scientifically procede the same way with or without the assumption. And creationist or intelligent design views will be back where they belong, in the realm of (immature) religion.

89 Comments

Robert Byers · 2 January 2013

This comment has been moved to The Bathroom Wall.

https://me.yahoo.com/a/JxVN0eQFqtmgoY7wC1cZM44ET_iAanxHQmLgYgX_Zhn8#57cad · 3 January 2013

Woese is he.

Seriously, though, no one else ever made plants and animals seem so relatively close, while bacteria and archaea are now rather more distant. He will be remembered.

However, the name "archaea" does seem less than ideal, as if they were somehow old relics, rather than evolved modern organisms like, well, bacteria at least. Not nearly so important as the discovery itself, a relatively minor caveat.

Glen Davidson

Joe Felsenstein · 3 January 2013

(Please, let's have replies to Byers occur on the Wall, where his effusions and troll-chasing belong).

Carl Woese had a major effect on microbiology, beyond just defining the Archaea. In effect, he introduced the notion that microbes could evolve. Before his and his students' work in the late 1970s, most microbiology texts had discussions of classification but not of phylogenies. Microbial groups were defined on the basis of which chemicals could stain them or on some detail of their metabolism. But there were no trees in introductory microbiology texts. (If you find this hard to believe, go to a university library, get an old microbiology textbook of pre-1977 vintage, and try to find the phylogeny). While the work of the Woese lab never lacked for critics, after it microbiologists suddenly wanted to know what the phylogeny was. In my own university, shortly after Woese's work the faculty of the Department of Microbiology wanted to know how to reconstruct phylogenies, and they turned to one of their own graduate students who ended up giving them lectures on that.

Basically there were three great periods of advance in microbiology -- the classical era of Koch and Pasteur, the 1940s and 1950s when Luria, Delbrück, and the Lederbergs established that bacteria had genetics that could be studied, and the late 1970s when it was established that microbes did in fact have an evolutionary history. Very simply, Carl was the greatest microbiologist of our age.

How insightful Carl was became clear to me after he came to me with an argument about rooting the tree of life. He was convinced that if one compared sites in ribosomal RNA that were paired (in stems) with those that weren't (in loops) that one could separate evolutionary rate from time. He had a clever argument for this, but it was not algebraic. I thought the matter over, and sat down to write a long letter to him disagreeing, and showing why you could not do make the separation between rate and time. In the midst of my letter I suddenly realized that part of my algebraic argument was wrong, and when I corrected it, it became clear that Carl was absolutely right. Which is pretty darned good intuition.

Carl Woese was not particularly humble, and was always campaigning for one viewpoint or another, but most of those were not only right, they were important. Hail and farewell.

Douglas Theobald · 3 January 2013

https://me.yahoo.com/a/JxVN0eQFqtmgoY7wC1cZM44ET_iAanxHQmLgYgX_Zhn8#57cad said: However, the name "archaea" does seem less than ideal, as if they were somehow old relics, rather than evolved modern organisms like, well, bacteria at least. Glen Davidson
The Archaea were first called archaebacteria, when they were thought to be a phylum of bacteria/prokaryotes. Woese himself originally called the third domain archaebacteria, but later proposed Eukarya, Eubacteria, Archaea to emphasize the tripartite domains. In fact, some microbiologists still call them archaebacteria, esp. those who do not accept Woese's three-domain hypothesis, like Bill Martin. Martin WF "Archaebacteria (Archaea) and the origin of the eukaryotic nucleus." Curr Opin Microbiol. 2005 8(6):630-637 http://www.molevol.de/publications/136.pdf).

ogremk5 · 3 January 2013

What was very interesting to me (when I started researching Carl's papers on domains and the archae kingdom was that I was taking HS biology just as these papers were coming out. So, I was taught about Monera.

When I started teaching HS Biology, I had to learn all that new fangled Domain stuff. I didn't like it.

Then I actually did the research and found out why the domains were needed and the value that they had and I learned to appreciate them.

harold · 3 January 2013

All

harold · 3 January 2013

All of cellular life, including archae, has remarkable biochemical overlap.

It seems as if Woese was proposing more than one abiogenesis events.

That's a very interesting idea; did he ever discuss the details of that?

FL · 3 January 2013

Carl Woese: "I have no trouble with a claim to the effect that God set the world up so that it progressed in an evolutionary fashion."

...Which reminds me of something H. Allen Orr said about Stephen Jay Gould's position regarding God-and-Evolution:

"Render unto Caesar the things that are Caesar's, and render unto Caesar the things that are God's as well."

A clear surrender demand, as Orr correctly observed. FL

harold · 3 January 2013

A clear surrender demand, as Orr correctly observed.
Remember everyone, you cannot reason with the authoritarian mind (which means, of course, that you cannot reason with a very substantial proportion of the earth's population of a very substantial number of issues). Why do FL and the authoritarian he approvingly quotes project the making of "surrender demands" onto Stephen Jay Gould, of all people? Because they conceptualize the world in terms of "surrender demands". That's how they communicate with everyone else, so that's how they perceive all communications from everyone else.

ogremk5 · 3 January 2013

harold,

If you read his paper, Woese proposed and had shown (this was when molecular biology was just coming into the fore) that Archae were as different from Eubacteria as Eubacteria was from Eukaryotes.

My understanding is that Archae are the proposed 'first group' because Archae have some characters that are more like Eukaryotes than Eubacteria and some characters that are more like Eubacteria than Eukaryotes.

So, not multiple abiogenesis events.

Paul Burnett · 3 January 2013

harold said: All of cellular life, including archae, has remarkable biochemical overlap. It seems as if Woese was proposing more than one abiogenesis events. That's a very interesting idea; did he ever discuss the details of that?
I vaguely recall reading that a few billion years ago, given energy inputs from sunlight, vulcanism, lightning, tides, wind and waves, various sources of ionizing and non-ionizing radiation, etc., in billions of cubic miles of potential biosphere seething with pre-life chemistry, and considering that life would have started at a very small scale, there must have been more than one abiogenesis event.

ogremk5 · 3 January 2013

Here's a write up I did... including a link to the original article: http://ogremk5.wordpress.com/2011/02/16/the-three-domain-system/

Joe Felsenstein · 3 January 2013

ogremk5 said: harold, If you read his paper, Woese proposed and had shown (this was when molecular biology was just coming into the fore) that Archae were as different from Eubacteria as Eubacteria was from Eukaryotes. My understanding is that Archae are the proposed 'first group' because Archae have some characters that are more like Eukaryotes than Eubacteria and some characters that are more like Eubacteria than Eukaryotes. So, not multiple abiogenesis events.
I think that when Woese named the Archaebacteria he proposed that they were a clade, the tree being (Archaebacteria,(Bacteria,Eukaryotes)); i.e, the first split separated the Archaebacteria from all the rest. He felt that Archaebacteria were particularly interesting because of that early split. However ... Subsequent rerooting of this tree by Iwabe and by Gogarten placed the root between Eubacteria (which Woese had called Bacteria) so that the tree was rerooted to be: (Eubacteria,(Archaea,Eukarya)); James Lake proposed that Eukarya arose within the Archaea, more closely related to some branches of them than to others, and a recent restudy of this seems to support that. None of which detracts from Carl Woese's status as the major figure introducing evolutionary history into microbiology.

FL · 3 January 2013

"Authoritarian"? I thought H. Allen Orr was an evolutionist.

Starbuck · 3 January 2013

hrmm but lipids from which membranes are constructed differ widely between bacteria and archaebacteria, those lipids probably arose independently. Eukaryotes and eubacteria have the same kind of lipids.

Douglas Theobald · 3 January 2013

So I was wrong --- Woese (with Fox) actually did first come up with the name archaebacteria; for some reason I thought it had been in use earlier. Its from the famous 1977 paper. See Joe's comment for why Woese thought the Archaea were "ancient".

Woese CR, Fox GE.
"Phylogenetic structure of the prokaryotic domain: the primary kingdoms."
Proc Natl Acad Sci U S A. 1977 74(11):5088-5090.

http://www.pnas.org/content/74/11/5088.full.pdf

Frank J · 3 January 2013

You might recall how, ~10 years ago, in the same paragraph, the Isaac Newton of Word Games notes how his buddy Michael Behe accepts common descent, while Woese - not an ID/Creationist - "explicitly denies" it. All the while having the chutzpah to keep you guessing on his position.

apokryltaros · 3 January 2013

Bullshitter For Jesus Bullshitted: "Authoritarian"? I thought H. Allen Orr was an evolutionist.
So, tell us again why we should assume you're telling the truth? Or why we should even assume that your claim that "evolutionists" (sic) have an authoritarian hierarchy is somehow true when you've lied about having learned about evolution in university?

Rolf · 4 January 2013

Would not common sense suggest that if there were one abiogenesis event, there might as well have been another - more or less remotely 'related'?

How can we know for certain one way or another? All we possibly might learn is whether all known life is descended from the same event or not - but can we rule out events that left no trace?

FL · 4 January 2013

why we should even assume that your claim that “evolutionists” (sic) have an authoritarian hierarchy

Ummm, I wasn't the one that initially used the term "authoritarian", nor have I said anything about any hierarchy. Please recheck the posts.

you’ve lied about having learned about evolution in university?

Looked at the university transcript just two nights ago. Course and grade are still there. "B" grade. Maybe not stellar but I'm quite okay with it. FL

fusilier · 4 January 2013

FL said: [snip]

you’ve lied about having learned about evolution in university?

Looked at the university transcript just two nights ago. Course and grade are still there. "B" grade. Maybe not stellar but I'm quite okay with it. FL
I thought your degree was in journalism? Just because you, maybe, took a survey course long ago, doesn't mean you understand biology. Your posts regularly demonstrate the opposite. I'm not sure if I even have transcripts for my coursework. fusilier James 2:24

eric · 4 January 2013

Rolf said: Would not common sense suggest that if there were one abiogenesis event, there might as well have been another - more or less remotely 'related'?
It depends on their probability, tempo, and how narrow a set of conditions are needed (these are interrelated, not independent factors). If they are rare enough that the first replicator radically changes the global environment before another one would be expected to occur, then no, you would not expect more than one.

apokryltaros · 4 January 2013

fusilier said:
Bullshitter Bullshitted: [snip]

you’ve lied about having learned about evolution in university?

Looked at the university transcript just two nights ago. Course and grade are still there. "B" grade. Maybe not stellar but I'm quite okay with it. FL
I thought your degree was in journalism? Just because you, maybe, took a survey course long ago, doesn't mean you understand biology. Your posts regularly demonstrate the opposite.
According to some of FL's routine anti-science rants, he would have mutated into an evil, inhuman, devil-worshiping, God-hating apostate for having set foot in a science classroom. And then there's the fact, like you've noted, that all of FL's posts all demonstrate a profound lack of understanding of even rudimentary science education.

ogremk5 · 4 January 2013

Rolf said: Would not common sense suggest that if there were one abiogenesis event, there might as well have been another - more or less remotely 'related'? How can we know for certain one way or another? All we possibly might learn is whether all known life is descended from the same event or not - but can we rule out events that left no trace?
In terms of Woese, his work really doesn't imply anything one way or another. That being said, I would tend to agree with you. That being said, the first replicator would have a massively huge advantage in all further development. Think of playing Monopoly, except one player starts with 9 properties and 18 houses. It would be almost impossible for the other players to beat him. Same thing with early life. Once the earliest form of life became predatory (i.e. able to use other organic molecules for nutrients or energy), it would be very difficult for any 'new' 'organisms' to compete successfully. Unless two systems were significantly far apart (in space) and occupied sufficiently different niches so that when they did come into the same space, they weren't competing, then I would suspect that one of early abiogenesis events produced all life that we are aware of. I do think that gene transfer and similar events happened in the very early world.

apokryltaros · 4 January 2013

Bullshitter For Jesus Bullshitted:

why we should even assume that your claim that “evolutionists” (sic) have an authoritarian hierarchy

Ummm, I wasn't the one that initially used the term "authoritarian", nor have I said anything about any hierarchy.
If you weren't trying to deliberately misquote Woese and Orr into making it sound like that they were evil authoritarians trying to command other "evolutionists" (sic) into not believing in Evolution and God at the same time, then what were you trying to deliberately misquote Woese and Orr into saying?

harold · 4 January 2013

eric said:
Rolf said: Would not common sense suggest that if there were one abiogenesis event, there might as well have been another - more or less remotely 'related'?
It depends on their probability, tempo, and how narrow a set of conditions are needed (these are interrelated, not independent factors). If they are rare enough that the first replicator radically changes the global environment before another one would be expected to occur, then no, you would not expect more than one.
If there were multiple abiogenesis events that produced recognizable descendants that still survive, then they all coincidentally resulted in common very basic cell structure, genetics, and biochemistry. Thus, there "could have" been multiple significant abiogenesis events, as long as they "coincidentally made it look the same as if it happened once". However, there is no current life on earth that does not appear related to all other current life. Therefore, it is most parsimonious, for now, to assume that, in a meaningful sense, life that survived originated once. By no means is that the only possibility, but it is the most parsimonious hypothesis right now, given all all current life is related to all other current life.

harold · 4 January 2013

harold said:
A clear surrender demand, as Orr correctly observed.
Remember everyone, you cannot reason with the authoritarian mind (which means, of course, that you cannot reason with a very substantial proportion of the earth's population of a very substantial number of issues). Why do FL and the authoritarian he approvingly quotes project the making of "surrender demands" onto Stephen Jay Gould, of all people? Because they conceptualize the world in terms of "surrender demands". That's how they communicate with everyone else, so that's how they perceive all communications from everyone else.
My apologies to H. Allen Orr. FL is right. I have no reason to think he is particularly an authoritarian. He may be, and some great scientists have been, but I don't have reason to think he is. FL, of course, is an authoritarian who can't be reasoned with, who demands "total surrender" from others, and who projects his own authoritarianism onto the rest of the world. This is a clarification of a prior comment that points out why engaging FL is rather pointless.

Carl Drews · 4 January 2013

harold said: If there were multiple abiogenesis events that produced recognizable descendants that still survive, then they all coincidentally resulted in common very basic cell structure, genetics, and biochemistry.
Could the abiogenesis event have happened to a small group of near-biological entities? Kind of like an isolated population evolving and speciating on its own? Is there any biogenesis mechanism that might work that way?

ogremk5 · 4 January 2013

Carl Drews said:
harold said: If there were multiple abiogenesis events that produced recognizable descendants that still survive, then they all coincidentally resulted in common very basic cell structure, genetics, and biochemistry.
Could the abiogenesis event have happened to a small group of near-biological entities? Kind of like an isolated population evolving and speciating on its own? Is there any biogenesis mechanism that might work that way?
There's lots of ways it could have happened. We'll never know. But, when we're talking about 'organisms' that are that simple, then gene flow, consuming and incorporating genes, etc. are all possibilities.

John · 4 January 2013

I am certain James A. Shapiro will lament especially Woese's passing over at his HuffPo blog if he hasn't already, since he has described Woese as the greatest living evolutionary biologist of our time. While I do acknowledge Woese's important contributions to microbiology and systematics, and express my condolences to his family, his friends and his colleagues, I would not regard him as a scientist as important as Dobzhansky, Fisher, Mayr, MacArthur, Maynard Smith, Simpson, or Wilson.

Helena Constantine · 4 January 2013

eric said:
Rolf said: Would not common sense suggest that if there were one abiogenesis event, there might as well have been another - more or less remotely 'related'?
It depends on their probability, tempo, and how narrow a set of conditions are needed (these are interrelated, not independent factors). If they are rare enough that the first replicator radically changes the global environment before another one would be expected to occur, then no, you would not expect more than one.
I've often thought here could have been several events that resulted in something life life, and out ancestor out-competed its rivals.

Just Bob · 4 January 2013

Helena Constantine said: I've often thought there could have been several events that resulted in something like life, and our ancestor out-competed its rivals.
Or ate them? But wait, that would have been before the Fall, so everything was vegetarian. But then archaeo-proto-bacteria didn't have the "breath of life", so they weren't biblically alive, so eating them wasn't killing anything. Whew! AIG-biology sure makes it easy to answer those tough questions.

Joe Felsenstein · 5 January 2013

I recall that Woese, about a decade ago, argued that the most recent common ancestor off all life (and that is a life form much later than the origin of life) was most likely not a single species, but that life forms of that period probably swapped genetic material around quickly. So that there was not one LUCA (last universal common ancestor) but rather a bunch of them.

Do I recall Woese's argument correctly? It is one that would be hard to test even with complete genomes of many widely-diverged species.

Frank J · 5 January 2013

Carl Drews said:
harold said: If there were multiple abiogenesis events that produced recognizable descendants that still survive, then they all coincidentally resulted in common very basic cell structure, genetics, and biochemistry.
Could the abiogenesis event have happened to a small group of near-biological entities? Kind of like an isolated population evolving and speciating on its own? Is there any biogenesis mechanism that might work that way?
I'm a chemist, not a biologist, but I recall an article that sounded plausible. It suggested that a system not yet free-living may have existed in mineral matrices. If so, I guess one could say that archaea and eubacteria may have had a "chemical system common ancestor" for lack of a better term. And indeed it is cases like these where I think that language is a huge challenge for scientists, and a very effective tool for pseudoscience-peddlers. That said, I think that, unfortunately, everyone must learn as much about ID/creationism as possible, if only to see the word games that it's peddlers play at every opportunity. And to see how real scientists test their ideas, while ID/creationism peddlers only mine data and quotes to promote unreasonable doubt of evolution. That doesn't mean that "evolutionists" always say the right thing. And when it's distilled down to the popular press it's IMO more often foot-shooting than anything else. Lost on ~99% of the public is the fact that "~4 billion years of common descent with modification" is so well established that even some anti-evolution activists (e.g. Behe) have conceded it. While the origin of life - the how if not the when - is still an active area of research with many yet-unanswered questions. Whenever someone baits-and-switches the two, one must immediately ask questions to determine if they have been merely misled, or have sold out to the scam.

stevaroni · 5 January 2013

Realistically, there were probably thousand - or millions - of "Genesis events" where a self-replicating molecule got formed.

In almost all cases these events would have been dead-ends. A warm little pond that dried up in the sun. A bubble in an ice cube that melted. A fissure in clay that dissolved in the next high tide. A really inconvenient meteorite.

Given the relative paucity of organic molecules on the early Earth it was almost inevitable that any abiogenesis event would be nipped in the (proto)bud.

It would have been the incredibly lucky molecule that managed to hang around long enough, in a rich enough, protected enough, environment to establish a stable lineage.

I can't see how it's anything but likely that there had to be more than one event, since most of them are destined to fail.

Of course, once some simple pre-biological lineage did establish itself, it got an almost insurmountable first-mover advantage. From now on, little bits of free-floating amino acid were no longer genesis molecules in potentia for some competing design, instead they got a new name - food.

Right now there are probably two organic molecules in you garbage disposal that just linked up into something that might just could possibly self-replicate given the right chance and 10 million years to work on it. Oops... it was just eaten by a fungi.

Ron Okimoto · 5 January 2013

ogremk5 said:
Carl Drews said:
harold said: If there were multiple abiogenesis events that produced recognizable descendants that still survive, then they all coincidentally resulted in common very basic cell structure, genetics, and biochemistry.
Could the abiogenesis event have happened to a small group of near-biological entities? Kind of like an isolated population evolving and speciating on its own? Is there any biogenesis mechanism that might work that way?
There's lots of ways it could have happened. We'll never know. But, when we're talking about 'organisms' that are that simple, then gene flow, consuming and incorporating genes, etc. are all possibilities.
I don't keep up with the abiogenesis research, but I've always felt that the most likely initiation was for simple self replicators to get going. These could have been made of anything in terms of molecular materials. They did not have to be RNA or amino acid based. They would just have to replicate. So instead of having things organized with the DNA as the genetic material each unit would replicate itself imperfectly so that multifunctional lipid sacks or whatever would be viable. We observe that complex molecules like proteins can have multiple functional positions and multiple functions and my guess is that this would be exploited, so you would evolve a bunch of self replicators that also did other things like lipid biosynthesis or making amino acids. So instead of replicating a long molecule of DNA they would self replicate a bunch of smaller molecules that also did other functions. Once you had some kind of shell or lipid bilayer you could segregate bags of these self replicators and they could evolve independently or fuse and bleb off. RNA and DNA likely came later as a better means of replicating and storage of useful functions. The evolution of our current system likely involved a lot of these early lifeforms with various abilities evolving and fusing. As the current translation system was evolving the functions of the individual self replicators would be replaced by functional RNA or protein encoded into more stable genetic material. So instead of relying on your lipid biosynthesis self replicators to be maintained by chance in the bag of lipid the functional units would go with the genetic material. There doesn't have to be a mechanism for replacement of individual self replicator functions just random peptide synthesis out of the genetic system and selection for functions that would make the individual self replicators obsolete so that they could be lost during subsequent fissions (cell divisions). Evolving the current translation system (DNA to RNA to Protein) would have to rely on individual self replicators producing the system that would eventually replace them. So in this scenario the first RNA polymerase would have been a self replicating unit with that extra function, and so with the first aminoacyl tRNA synthetase etc. They would not have to be initially encoded in the system that was making them, but those functions would eventually would be taken over as RNAs and peptides evolved to do the same functions. I don't know how many self replication units enclosed in something like a lipid vescicle that you would need to claim something to be a lifeform, but if it could make lipid out of materials available and could self replicate the lipid biosynthetic function using materials at hand that would probably be about as simple a lifeform as you could get. The simple self replicators would replicate imperfectly and other secondary functions would evolve. You'd probably want something to stick the self replicating units together so that they could move in groups and not be so easily lost or separated during fission events.

harold · 5 January 2013

Carl Drews said:
harold said: If there were multiple abiogenesis events that produced recognizable descendants that still survive, then they all coincidentally resulted in common very basic cell structure, genetics, and biochemistry.
Could the abiogenesis event have happened to a small group of near-biological entities? Kind of like an isolated population evolving and speciating on its own? Is there any biogenesis mechanism that might work that way?
I didn't mean to imply "exactly one original cell", which would be incorrect. However, it is most parsimonious to note that all of modern life could have evolved from a population of very similar and closely related proto-cells. What did not happen, is multiple separate origin of life events that led to two or more unrelated modern biospheres, or even ancient biospheres as far as we can tell, with distinctively different cell structure, genetics, and/or biochemistry. That did not happen. To me it seems pointless to speculate something like "cellular life originated once and then a hundred million years ago that happened again but the second origin gave rise to life that perfectly mimics being related to the first batch of life so we can never tell". That " could have" happened, but since all life is related, "everything descended from the first batch" is more parsimonious and raises fewer probability issues.

Helena Constantine · 5 January 2013

stevaroni said: Given the relative paucity of organic molecules on the early Earth it was almost inevitable that any abiogenesis event would be nipped in the (proto)bud.
Can you expand on this? As a layman, I always imagined that the pre-biotic earth was rich in organic molecules, supposing that most of the carbon that exists today as fossil fuels and organisms might have been dissolved in the oceans? Or was in the form of CO2?

Frank J · 6 January 2013

Helena Constantine said:
stevaroni said: Given the relative paucity of organic molecules on the early Earth it was almost inevitable that any abiogenesis event would be nipped in the (proto)bud.
Can you expand on this? As a layman, I always imagined that the pre-biotic earth was rich in organic molecules, supposing that most of the carbon that exists today as fossil fuels and organisms might have been dissolved in the oceans? Or was in the form of CO2?
I hate the word "organic" because it has so many definitions, which means opportunities for anti-evolution activists (and in this case all sorts of snake oil peddlers) to mislead. In any case, carbon compounds form chains easily, so with millions of cubic miles of solution and CO2, plenty of catalytic surfaces (chiral to boot), the chances for a system to achieve autocatalysis after a few years (or a few million) can be good even if 99.99999+% attempts are dead ends. We don't know the numbers, and have not replicated it in the lab, at least beyond the simplest autocatalytic sets, to my knowledge. But: (1) we don't have the luxury of a millions-of-cubic-miles "test tube" (2) that we don't know that (and admit it) does not give anti-evolution activists the right to spin it to pretend that we don't know what followed it (evolution and speciation) One thing we do know is what Stevaroni said, that subsequent abiogenesis events would face competition and be gobbled up. That doesn't mean that they necessarily didn't occur, only that the probability drops after the first one. That said, everyone please do this: When an anti-evolution activist even hints that there is more than one "kind" that don't share common ancestors, tell them that the onus is on them to show that abiogenesis occurred more than once. And ask them when they think those events occurred, and for which "kinds." And don't let them play games with the word "abiogenesis," as in pretending that it's impossible (which they routinely bait-and-switch with "improbable") and that "something else" occurred "by design." Abiogenesis is by definition life-from-nonlife, regardless of how many Creators/designers pushed the atoms around. Note: these questions are best asked in the presence of an audience of potential fence-sitters. Rank-and-file deniers will likely retreat into either quoting scripture or going all new-agey ("the past is anyone's guess"), but the activists will show their true colors by doing whatever it takes to drag you back into debating the "weaknesses" of "Darwinism."

harold · 6 January 2013

Frank J -

Probably the single most beneficial development I have seen in terms of defending science and science education is people challenging ID/creationists for their own explanation.

All they want to do is attack straw men and change the subject.

This is partly due to the outcomes of trials. Since Edwards v Aguillard it has been politically useless for them to openly declare a purely religious explanation. At Dover Judge Jones repeatedly brought up that ID was just evolution denial.

It's partly due to the Internet, too.

The most terrifying thing an ID/creationist can hear is "I'm willing to listen to your explanation; what happened when, and what is your evidence for that?".

Frank J · 6 January 2013

harold said: Frank J - Probably the single most beneficial development I have seen in terms of defending science and science education is people challenging ID/creationists for their own explanation. All they want to do is attack straw men and change the subject. This is partly due to the outcomes of trials. Since Edwards v Aguillard it has been politically useless for them to openly declare a purely religious explanation. At Dover Judge Jones repeatedly brought up that ID was just evolution denial. It's partly due to the Internet, too. The most terrifying thing an ID/creationist can hear is "I'm willing to listen to your explanation; what happened when, and what is your evidence for that?".
Exactly. So why are so many fellow "Darwinists" so reluctant to do that? Yes, I know that one big reason is that we like to explain things. And given that (1) there's so much evidence for evolution, (2) there are so many devastating refutations of it's "weaknesses," and (3) most people are almost completely unaware of 1 and 2, it's very tempting keep the "debate" all about evolution. But that's exactly what the more shrewd anti-evolution activists want. So we must set aside at least some time to expose their evasive games and double standards. Without criticizing their (known or implied) religion. What better way that to ask them simple questions about their mutually contradictory "theories." They pretend to want "equal time," so let's give it to them where it's legal, exactly where they don't want it.

Scott F · 6 January 2013

I'm no biologist, but doesn't the fact that Archaea, Eucaryota, and Bacteria all use DNA as the genetic transcription medium suggest that any "first replicator" happened way before that split? My limited understanding was that DNA itself is relatively highly "evolved". Past the "first replicator", I'm fascinated by the notion that "evolvability" first had to "evolve" from the "first replicator".

Rolf · 7 January 2013

The most terrifying thing an ID/creationist can hear is “I’m willing to listen to your explanation; what happened when, and what is your evidence for that?”.
The most terrifying thing an ID/creationist can do is to listen to your explanation of "what happened when" because he has no answer except godditit.

Henry J · 7 January 2013

And that leads to the question of why they think God would be unable to get natural processes to produce results that meet her requirements. Their whole argument appears to assume this, even though it also appears to me that it contradicts the basic assumption behind the God concept.

Carl Drews · 7 January 2013

Suppose NASA gets a bunch of money, sends an ice-penetrating probe to Europa, and the probe finds self-replicators in the liquid water beneath the ice. Suppose the probe is equipped with a sophisticated chem-bio lab. How would you distinguish:

A) A common abiogenesis event with Earth.

B) A separate abiogenesis event on Europa.

If B), should the little replicators on Europa have DNA but with wildly different sequences?

Henry J · 7 January 2013

I guess that would depend on how much influence the chemical properties have on the correlations between DNA/RNA sites and amino acids.

Bobsie · 7 January 2013

Henry J said: And that leads to the question of why they think God would be unable to get natural processes to produce results that meet her requirements.
From my conversations with these folks they tell me that "of course, my God could have done it that way but He told us how He did it in Genesis which is not natural but willed into existence by the force of supernatural word alone." I think they are drawn to the magic of it and don't really comprehend any of the science.

eric · 7 January 2013

Carl Drews said: How would you distinguish: A) A common abiogenesis event with Earth. B) A separate abiogenesis event on Europa. If B), should the little replicators on Europa have DNA but with wildly different sequences?
I expect they'd look at conditions on both planets 3.5 billion years ago and ask if its possible for said replicator to survive in both sets of conditions, plus the travel between them. If the answer is no, then the evidence supports separate events. If the answer is yes, then the door is still open on a common source event. IANAB, but the differences between RNA and DNA demontsrate a number of contingencies in how replicating biological codes can be built. In a replication system that evolved separately, some of those contingent evolved structures ought to be different. I.e., it wouldn't necessarily be double stranded, because we know that's a contingent and not a necessary physical constraint. It wouldn't necessarily use CTGA, because again, not a physical requirement - we know of systems that don't use CTGA. And it wouldn't necessarily use the same three-base-group codons as DNA to code for the same amino acids since, again, not a physical requirement. I would personally expect to see a lot bigger differences than those, but being conservative, I'd expect at least some subset of those at a very minimum. If its double helix using CTGA with the same codons used to produce the same amino acid, then my immediate thought would be "contamination from the probe, or same origin."

DS · 7 January 2013

In my opinion, Eric is correct. We might expect to see some similarities, especially if the two environments were similar. This might simply be due to constraints on the evolution of replicating systems, even if there were actually two separate origins. Indeed, this would teach us a lot about what real constraints exist and what might just be due to chance events and historical contingency. I wouldn't even expect life elsewhere to be organic, but it might be. If it were organic, it might or might not use DNA as the genetic material, but even if it did it might still be an independent origin. Likewise it might or might not use the same bases to code for information.

What you would absolutely not expect to see would be two convergent genetic codes, since most of the features of the code are considered to be arbitrary. You would also expect fundamental differences in ribosome structure and the details of the cellular machinery and genome structure. And of course, it should not be possible to place an independent origin within a phylogentic context in the terrestrial tree of life. At the very most you might get a completely unconnected branch.

Since this is not an implausible scenario, some science fiction has been written about it. The most important thing is that we will learn a lot if an independent form of life is ever discovered. Until then, in a very real sense, we only have one example from which to generalize.

harold · 7 January 2013

Carl Drews said: Suppose NASA gets a bunch of money, sends an ice-penetrating probe to Europa, and the probe finds self-replicators in the liquid water beneath the ice. Suppose the probe is equipped with a sophisticated chem-bio lab. How would you distinguish: A) A common abiogenesis event with Earth. B) A separate abiogenesis event on Europa. If B), should the little replicators on Europa have DNA but with wildly different sequences?
Good questions. First of all you would need some criteria for identifying relevantly self-replicating systems, that are independent of criteria identifying terrestrial-like biochemistry. If you found biochemically unique (relative to terrestrial life) self-replicators, that would support independent abiogenesis. If you found organisms with biochemistry that had overlap with terrestrial biochemistry, but which were otherwise profoundly different in some significant way from terrestrial life, that would also probably imply independent abiogenesis. This (imaginary thought experiment event) would suggest that "abiogenesis homoplasy" might exist, and that biochemically similar but identifiably distinct abiogenesis events might occur in completely different environments. With the caveat that we don't have great criteria for identifying non-organic self-replicators, neither of these two things has been seen on earth. If you found, say, organisms that seemed to be related to terrestrial bacteria (imaginary example), that would raise a bizarre problem. The most parsimonious explanation would be shared ancestry, but because Europa is highly separated from Earth, I suppose that "parallel abiogenesis and subsequent evolution leading to related-seeming lineages" might have to be entertained. "Finding modern bacteria on Europa" would be highly analogous to "finding an inscription written in Greek on Europa". It would raise a profound problem. How could something which specifically evolved on Earth, and which had no conceivable way of being transported to Europa, be on Europa? Either independent emergence of Greek identical to earthly Greek, or past transport of Greek speakers to Europa, would each seem to raise insurmountable issues. Fortunately, the dilemma is imaginary. We have not found modern bacteria or Greek inscriptions anywhere but Earth. We can wait to resolve such a dilemma, until such time as, if ever, we actually have such a dilemma. All terrestrial life appears to share common ancestry, according to multiple convergent lines of strong evidence. Therefore the "life arose more than once but in a way that makes it look as if it only arose once" idea is non-disprovable but not relevant. (Of course, something like a period of emergence of multiple unique types of proto-cells that were able to horizontally share genes or something and eventually became a population that was ancestral to all of modern life can be conjectured. About the only way I can think of to address such conjectures would be to build good, complete models of different scenarios of abiogenesis and evaluate which models seem most reasonable. No-one has gotten that far yet.) However, an idea that some cellular life emerged, evolved, and diversified, and then later, there was a separate completely new emergence of an unrelated lineage of cellular life, on Earth, is at odds with what is suggested by current data. All recognized terrestrial life to date shows strong evidence of sharing common ancestry.

Carl Drews · 7 January 2013

Thanks for the answers. I did not know what was contingent and what was required. I am currently reading James Watson's The Double Helix (2012), and of course in the book it has to be a double helix with CTGA!

We might get a chance to practice for Europa within a year or two. The British team has called off drilling into Antarctica's Lake Ellsworth because of technical difficulties:

http://www.bbc.co.uk/news/science-environment-20850360

But they will be back! Or another team will penetrate Lake Vostok.

For the reasons Eric mentioned in his first paragraph, I would be gob-smackingly surprised if they found evidence of a separate origin for any biological replicators they pull up out of the lake. (I don't know what else to call them - bugs?) The sub-Antarctic lakes have been frozen over for only millions of years, and they are not isolated now. One could place a brass dollar coin on the surface of the ice cap and in a few hundred thousand years it would progress downward with the ice layers and melt out into the lake. Bugs can do the same thing.

But it will be fascinating to see what's down there! And Lake Ellsworth is a lot closer than Europa.

TomS · 7 January 2013

One question may possibly have dwelt in the reader's mind during the perusal of these observations, namely, Why should not the Deity have given to the animal the faculty of vision at once? Why this circuitous perception; the ministry of so many means; an element provided for the purpose; reflected from opaque substances, refracted through transparent ones; and both according to precise laws; then, a complex organ, an intricate and artificial apparatus, in order, by the operation of this element, and in conformity with the restrictions of these laws, to produce an image upon a membrane communicating with the brain? Wherefore all this? Why make the difficulty in order to surmount it? If to perceive objects by some other mode than that of touch, or objects which lay out of the reach of that sense, were the thing proposed; could not a simple volition of the Creator have communicated the capacity? Why resort to contrivance, where power is omnipotent? Contrivance, by its very definition and nature, is the refuge of imperfection. To have recourse to expedients, implies difficulty, impediment, restraint, defect of power. This question belongs to the other senses, as well as to sight; to the general functions of animal life, as nutrition, secretion, respiration; to the economy of vegetables; and indeed to almost all the operations of nature. The question, therefore, is of very wide extent; and amongst other answers which may be given to it; beside reasons of which probably we are ignorant, one answer is this: It is only by the display of contrivance, that the existence, the agency, the wisdom of the Deity, could be testified to his rational creatures.
From pages 38-40 of William Paley, "Natural Theology; or Evidences of the Existence and Attributes of the Deity, Collected from the Appearance of Nature" (12th edition) The Complete Works of Charles Darwin Online I don't know how Paley knew that limitation on the power of God, that God could only achieve his goals by the display of contrivance. Why could not the existence, the agency, the wisdom of the Deity be testified without contrivance? And why, in the 200 years since Paley, has no one answered this rather obvious question?

eric · 7 January 2013

Carl Drews said: Thanks for the answers. I did not know what was contingent and what was required.
I doubt we know the full answer to that. :) Suffice to say that we know some characteristics are contingent because they are different between RNA and DNA, which are both replicating systems. There could be a lot more characteristics that are contingent, but with a sample size of two evolved replication sytems (one of which may have evolved from the other), it is hard to say which of the features common to both systems are physically necessary for any sort of biological replicator. Every bioreplicator we know of uses a carbon polymer backbone. Maybe that means replicators must use carbon, that no other system will work...or maybe it doesn't.
I am currently reading James Watson's The Double Helix (2012), and of course in the book it has to be a double helix with CTGA!
IIRC, they determined it 'had to be' that based on x-ray crystallography of the samples they had. Slightly different (and contingent) use of term "has to be." One can easily imagine the x-ray crystallography of an alien replication sytem yielding a different pattern. Again IIRC, Pauling was betting on a single strand alpha helix.

DS · 7 January 2013

Actually, I think Pauling proposed a triple stranded DNA molecule. Who knows, maybe somewhere that's s the way it is.

Douglas Theobald · 7 January 2013

Joe Felsenstein said: I recall that Woese, about a decade ago, argued that the most recent common ancestor off all life (and that is a life form much later than the origin of life) was most likely not a single species, but that life forms of that period probably swapped genetic material around quickly. So that there was not one LUCA (last universal common ancestor) but rather a bunch of them. Do I recall Woese's argument correctly? It is one that would be hard to test even with complete genomes of many widely-diverged species.
Woese's exact position is somewhat vague and difficult to understand, at least for me. In his PNAS paper "The Universal Ancestor", he wrote:
Organismal lineages, and so organisms as we know them, did not exist at these early stages. The universal phylogenetic tree, therefore, is not an organismal tree at its base but gradually becomes one as its peripheral branchings emerge. The universal ancestor is not a discrete entity. It is, rather, a diverse community of cells that survives and evolves as a biological unit. This communal ancestor has a physical history but not a genealogical one. Over time, this ancestor refined into a smaller number of increasingly complex cell types with the ancestors of the three primary groupings of organisms arising as a result.
and
There are different ways of looking at such a community of progenotes. On the one hand, it could have been the loose-knit evolutionary (genetic) community just discussed. On the other, it could have been more like a modern bacterial consortium, with cells cross-feeding one another not only genetically but also metabolically. Cell–cell contacts would have facilitated both processes. In both views of the community, the latter in particular, it is not individual cell lines but the community of progenotes as a whole that survives and evolves. It was such a community of progenotes, not any specific organism, any single lineage, that was our universal ancestor—a genetically rich, distributed, communal ancestor.
The tree arose in a communal universal ancestor, an ‘‘entity’’ that had a physical history but not a genealogical one.
The universal ancestor is not an entity, not a thing. It is a process characteristic of a particular evolutionary stage.
To my mind Woese protests too hard --- Woese's universal ancestor can also be described as an entity, and he even defines it: "a genetically rich, distributed, communal ancestor", a "community of progenotes" that "survives and evolves as a biological unit". How is that not an "entity"? I fail to see how this is much different from the common ancestor of chimps and humans, which was also not (necessarily) a single organism, but rather a community of genetically different individuals actively swapping genetic information. IOW, the salient question surrounding Woese's UCA is "what was it like?", not whether it existed and not whether it was ancestral in some (genealogical) way to all of extant life. The universal ancestor. Woese C. Proc Natl Acad Sci U S A. 1998 95(12):6854-9. http://www.ncbi.nlm.nih.gov/pubmed/9618502 http://www.pnas.org/content/95/12/6854.long

Joe Felsenstein · 7 January 2013

Thanks, Doug. I am now fully informed.

Henry J · 7 January 2013

Sounds like he was saying that individuality is an advanced trait that wasn't present in the early stages.

Frank J · 7 January 2013

Rolf said:
The most terrifying thing an ID/creationist can hear is “I’m willing to listen to your explanation; what happened when, and what is your evidence for that?”.
The most terrifying thing an ID/creationist can do is to listen to your explanation of "what happened when" because he has no answer except godditit.
Actually, anti-evolution activists love to hear our explanations of "what happened when" because it gives them data and quotes to take out of context to promote unreasonable doubt to fence-sitters who lack the time and interest to dig deeper. What they dread are such specific questions about their alternate "theories." Oh, sometimes an old-school YEC or OEC activist is candid, usually admitting that their personal interpretation of scripture overrules any conflicting evidence. And sometimes a follower gets politically incorrect, like Pat Robertson and his recent criticism of YEC. But the scam that began with "scientific" creationism, which specifically depends on cherry-picking evidence to pretend that evidence independently confirms not only a Creator/designer, but one particular interpretation of a scriptural account, was doomed from the start because peddlers could not agree on which interpretation fit the evidence. And of course the evidence, which contradicted all of them, was not cooperative even with "creative" mining. Thus almost from the beginning of "scientific" creationism in the mid-20th century, the pressure to "don't ask, don't tell what happened when" began. And it has been a retreat ever since. Worse, for the ID peddlers, not only do they know that "goddidit" is all they have, they are painfully aware that mainstream evolution, and not YEC or OEC, have the correct whats, whens, wheres and hows. But of course they would not dare admit it.

harold · 7 January 2013

The most terrifying thing an ID/creationist can do is to listen to your explanation of “what happened when” because he has no answer except godditit.
Actually, anti-evolution activists love to hear our explanations of “what happened when” because it gives them data and quotes to take out of context to promote unreasonable doubt to fence-sitters who lack the time and interest to dig deeper.
Frank J is correct here. Rolf projects an honesty onto ID/creationists which he possesses, but they do not. (I don't mean here that they consciously deceive, although some surely do, but rather that they don't have the same relationship to truth. They are advocates for ID/creationism whatever the evidence.) Their goal is to contradict, censor, or distort the teaching of evolution, ideally in public schools, and if not there, at least in mainstream public discourse. The object of doing so in public discourse is to set up doing so in public schools. They have variously demanded teaching YEC instead of evolution, teaching ID instead of evolution, teaching "both creationism and evolution", teaching a superficial or incorrect version of evolution followed by false "criticisms" of evolution, or merely not teaching evolution or creationism at all. They attack evolution in every possible way except actually honestly addressing it and presenting a reasonable alternate explanation for the observed data. They want to "frame the issue". They want to create the impression that "something is wrong with evolution", but equally importantly, that if something is "wrong with evolution", that their dogma is the unquestioned default - while hiding what their dogma actually is. While there is nothing wrong with correcting misrepresentations of evolution, it is also very important to put the onus on them. What is their explanation? What is the evidence for it? How can it be tested? Why is it the default? Why is it better than other systems that deny evolution?

Tenncrain · 7 January 2013

I have enjoyed reading the recent chat here by harold, DS, Carl Drews, etc regarding RNA/DNA and to hypothesise about abiogenesis. While it's too bad our resident trolls are too inflicted by Morton's Demon (named after ex-YEC Glenn Morton), it's nice that I and a few others here at PT can learn a thing or two about science. James Watson’s The Double Helix is now on my list of books to read, when I find some time that is.

Steve P. · 7 January 2013

What is interesting Douglas, is that Woese, like lots of proponents of Darwinian evolution, trot out the YEC 'individual crafting of parts like a machinist' position as also being an ID position, which is patently untrue. In fact, ID has no such debt to YEC.

Even Darwinian evolution skeptic Michael Behe made an off-hand comment that a single progenitor cell was a plausibility, an idea compatible with Woese' take on early life. So this seems just another strawman characterization of the ID position.

What is more curious though, in the context of this OP is that no matter what scenarios are proposed by people like Woese, these ideas can all live under the humongous Darwinian evolutionary tent.

No scenario left behind.

Just Bob · 7 January 2013

Hey Stevie, what would we gain by switching over to ID-inspired science?

DS · 7 January 2013

Steve P. said: What is interesting Douglas, is that Woese, like lots of proponents of Darwinian evolution, trot out the YEC 'individual crafting of parts like a machinist' position as also being an ID position, which is patently untrue. In fact, ID has no such debt to YEC. Even Darwinian evolution skeptic Michael Behe made an off-hand comment that a single progenitor cell was a plausibility, an idea compatible with Woese' take on early life. So this seems just another strawman characterization of the ID position. What is more curious though, in the context of this OP is that no matter what scenarios are proposed by people like Woese, these ideas can all live under the humongous Darwinian evolutionary tent. No scenario left behind.
Sorry Stevie, no hypothesis unsupported by evidence will be accepted, unlike the ID band of merry charlatans.

TomS · 8 January 2013

Frank J said: Thus almost from the beginning of "scientific" creationism in the mid-20th century, the pressure to "don't ask, don't tell what happened when" began. And it has been a retreat ever since. Worse, for the ID peddlers, not only do they know that "goddidit" is all they have, they are painfully aware that mainstream evolution, and not YEC or OEC, have the correct whats, whens, wheres and hows. But of course they would not dare admit it.
Herbert Spencer noted in his essay The Development Hypothesis of 1852 that the advocates of special creations did not spell out what they thought happened. It is true that "Intelligent Design" and its successors have gone beyond these humble beginnings.

gmartincv · 8 January 2013

Carl Drews said: We might get a chance to practice for Europa within a year or two. The British team has called off drilling into Antarctica's Lake Ellsworth because of technical difficulties: http://www.bbc.co.uk/news/science-environment-20850360 But they will be back! Or another team will penetrate Lake Vostok.
The Russians completed drilling into Lake Vostok last February. So far no signs of life has been detected. See for example: http://news.discovery.com/earth/no-life-found-in-lake-vostok-yet-121019.html George

stevaroni · 8 January 2013

gmartincv said: The Russians completed drilling into Lake Vostok last February. So far no signs of life has been detected.
Sure. Sure there's "no life" down there. That's just what the lake-dwelling reptiloids want you to think.

eric · 8 January 2013

Steve P. said: Even Darwinian evolution skeptic Michael Behe made an off-hand comment that a single progenitor cell was a plausibility, an idea compatible with Woese' take on early life. So this seems just another strawman characterization of the ID position.
Well, I invite you to correct Woese. Provide a corrected characterization of the ID position. What intelligence, designed what bit of life, when, how, and what evidence can we expect that it left behind? As far as I can tell, pretty much any attempted characterization of ID by a non-proponent is considered a strawman characterization. Its a three card monty idea; whichever description the mark picks, it was the wrong one. There is no bean.

harold · 8 January 2013

Steve P. said: What is interesting Douglas, is that Woese, like lots of proponents of Darwinian evolution, trot out the YEC 'individual crafting of parts like a machinist' position as also being an ID position, which is patently untrue. In fact, ID has no such debt to YEC. Even Darwinian evolution skeptic Michael Behe made an off-hand comment that a single progenitor cell was a plausibility, an idea compatible with Woese' take on early life. So this seems just another strawman characterization of the ID position. What is more curious though, in the context of this OP is that no matter what scenarios are proposed by people like Woese, these ideas can all live under the humongous Darwinian evolutionary tent. No scenario left behind.
Now is your chance to prove Woese wrong. 1) Could any evidence convince you of the theory of evolution, and if so, what type of evidence is now lacking, that would convince you if present? 2) The Supreme Court ruled against the direct teaching of Biblical Young Earth Creationism as science in public schools; however, if that ruling were overturned, which would you support more, teaching of ID, or direct teaching of Bible-based YEC? 3) Do you think it is important for opponents of the theory of evolution to fully understand the theory of evolution? If so, can you explain it, and if not, can you explain why not? 4) Who is the designer? How can we test your answer? 5) What did that designer do? How can we test your answer? 6) How did the designer do it? How can we test your answer? 7) When did the designer do it? How can we test your answer? 8) What is an example of something that was not designed by the designer?

Steve P. · 8 January 2013

...a not so clever, limp wristed attempt to bait a Darwinian evolution skeptic into being accused of derailing a thread. ...maybe PT moderators should take a look at BWing these types of home-grown posts.
Just Bob said: Hey Stevie, what would we gain by switching over to ID-inspired science?

Steve P. · 9 January 2013

....but wait Harold, if you are implying that Woese is not wrong, then why lambast Behe for this off-hand remark that a single progenator cell started life's evolutionary (non-darwinian of course) track? ...btw, your list has been answered twice....you know what they say about repetitive behavior. ...no, you don't gots to get paid! http://www.youtube.com/watch?v=kaIZWjItReI
harold said:
Steve P. said: What is interesting Douglas, is that Woese, like lots of proponents of Darwinian evolution, trot out the YEC 'individual crafting of parts like a machinist' position as also being an ID position, which is patently untrue. In fact, ID has no such debt to YEC. Even Darwinian evolution skeptic Michael Behe made an off-hand comment that a single progenitor cell was a plausibility, an idea compatible with Woese' take on early life. So this seems just another strawman characterization of the ID position. What is more curious though, in the context of this OP is that no matter what scenarios are proposed by people like Woese, these ideas can all live under the humongous Darwinian evolutionary tent. No scenario left behind.
Now is your chance to prove Woese wrong. 1) Could any evidence convince you of the theory of evolution, and if so, what type of evidence is now lacking, that would convince you if present? 2) The Supreme Court ruled against the direct teaching of Biblical Young Earth Creationism as science in public schools; however, if that ruling were overturned, which would you support more, teaching of ID, or direct teaching of Bible-based YEC? 3) Do you think it is important for opponents of the theory of evolution to fully understand the theory of evolution? If so, can you explain it, and if not, can you explain why not? 4) Who is the designer? How can we test your answer? 5) What did that designer do? How can we test your answer? 6) How did the designer do it? How can we test your answer? 7) When did the designer do it? How can we test your answer? 8) What is an example of something that was not designed by the designer?

Steve P. · 9 January 2013

eric, contrast the ID postion with the ND position: ND: we don't know how life got started...but without doubt it was a combination of physics and chemistry... ID: we don't know how life got started...but without doubt is was information interacting with physics and chemistry... ...your continued attempts to imply that design requires the identity and method of a supposedly human like yet ethereal entity suggests you are purposefully twisting the ID position to make it easier to rebut...create a weak link and break it with tweezers...bolts cutters are way too expensive. So I suppose to keep the logic consistent, we need to ask you for the identity and method of the physics and chemistry that started life and provided the conditions for Darwinian evolution...no but wait!; darwinian evolution does not depend on abiogenesis... separate issues! so I can't require this of you. With this in mind, ID is not required to propose the identity or method of a designer...simply contrast the ID position with the ND position by inserting a key conceptual element that ND denies...the existence of information as an independent and separate physical entity that interacts with physics and chemistry. ...yeah, you can wag a crooked finger at ID to please your perps....but it is ID that will overtake ND....just a matter of time. ...but we all know ND will attempt to co-opt ID's information as a separate entity concept and claim it fit with ND all along....we knew THAT!
eric said:
Steve P. said: Even Darwinian evolution skeptic Michael Behe made an off-hand comment that a single progenitor cell was a plausibility, an idea compatible with Woese' take on early life. So this seems just another strawman characterization of the ID position.
Well, I invite you to correct Woese. Provide a corrected characterization of the ID position. What intelligence, designed what bit of life, when, how, and what evidence can we expect that it left behind? As far as I can tell, pretty much any attempted characterization of ID by a non-proponent is considered a strawman characterization. Its a three card monty idea; whichever description the mark picks, it was the wrong one. There is no bean.

Dave Luckett · 9 January 2013

Harold is not implying that Woese was wrong. He did not lambast anyone, not even Behe. His questions have not been answered in even vaguely responsive terms by you, or as far as I know, anyone who asserts "non-Darwinian" origins for the species. Sneers, falsehoods, irrelevancies and snide remarks are no substitute for evidence.

Dave Luckett · 9 January 2013

No, the hypothesis of "design" does not absolutely require the identification of a designer, although it would be a little less vacuous if one were identified. It does, however, require evidence that design occurred. Produce it, please.

The physics and chemistry that produce variation in allele are actually fairly well understood, even though they are formidably complex. From a genetic perspective, their effects have been understood for a century or more now, and the basic biochemistry for about half as long. The mechanism that selects the successful variations among those produced by this process is also well understood.

Those are the mechanics of evolution. They can be and have been minutely specified and subjected to endless experiment. Please specify the mechanics of intelligent design to the same degree of detail.

Steve P. · 9 January 2013

Douglas, of course HGT is a challenge to Darwinian evolutionary theory.

..co-opting this concept is simply an attempt to punt the ball....as I alluded to several times in a discussion with Flint in a past posts, how does one account for the ability of early life to possess any 'abilities' - but specifically in this context, the ability to recognize new genes and utilize them, the ability to copy and release them to other organisms?

...all these myriad mechanisms which existing at the start of life are never adequately explained by ND, just a simplistic explanation and then 'OK, folks lets move on'.

apokryltaros · 9 January 2013

Steve P. said: With this in mind, ID is not required to propose the identity or method of a designer...
Actually, Intelligent Design is obligated to propose the identity and the methods used by an "Intelligent Designer." Otherwise, if Intelligent Design proponents do not, then they are not doing any science, simply making an evidence-free assertion of "Evolution can't happen because GODDIDIT" I would ask you to provide an explanation of why we must blindly accept your inane assertions, but, you've repeatedly whined that you are not obligated to do s.
simply contrast the ID position with the ND position by inserting a key conceptual element that ND denies...the existence of information as an independent and separate physical entity that interacts with physics and chemistry.
Have you been able to do any research to prove this assertion, or have you been too busy magically making money hand over fist at your alleged fabric business to do so? That is, when you're not busy trolling at Panda's Thumb being an asshole.
...yeah, you can wag a crooked finger at ID to please your perps....but it is ID that will overtake ND....just a matter of time.
If Intelligent Design proponents continue refusing to do any sort of scientific research, or even continuing to refuse to provide even an explanation on why Intelligent Design should be considered as science, your inane prophecy will never occur.
...but we all know ND will attempt to co-opt ID's information as a separate entity concept and claim it fit with ND all along....we knew THAT!
Are you actually claiming that scientists will attempt to steal the concept of Intelligent Design and "GODDIDIT" from Intelligent Design proponents to falsely claim as their own? Well that has got to be the most stupid assertion you've ever said.

apokryltaros · 9 January 2013

Dave Luckett said: No, the hypothesis of "design" does not absolutely require the identification of a designer, although it would be a little less vacuous if one were identified. It does, however, require evidence that design occurred. Produce it, please.
In scientific disciplines where one identifies a designer, like Archaeology, Animal Behavior, or Criminal Forensics, it is vital to verify and understand the identity, methods and motives of the designer. Otherwise, what's the point of saying something is designed if you aren't going to bother to find out who made it, how she/he/it made it, and why? Steve P's assertion that Intelligent Design proponents are not obligated to propose who the Intelligent Designer is and how God the Designer did it is simply a variation that science is not necessary because it's too hard and too yucky for him to ever bother understanding.

Dave Luckett · 9 January 2013

In archeology, one usually can't identify the designer of an artefact at all. A general cultural context is usually the best that can be done. However, the general techniques, methods and material used can be specified. In animal behaviour, no designer is ever specified, either of the animal, or of the behaviour. In criminal forensics, the purpose is not necessarily to associate any particular person with the crime, but often simply to define more closely what happened, when, by what precise means, and under what precise circumstances. Hence a hypothesis of design does not necessarily include the identity of the designer, but it does, and must, say what happened, generally when, and by what means or techniques, using what materials. If it does not specify these at least, it is merely vacuous.

If Steve P or any proponent of intelligent design were to say what happened in any terms other than the vaguest of handwaving, the hypothesis could be tested. But they refuse to do that - for that very reason. Absent such a description, it can't be tested - which is exactly what they want.

But if it can't be tested, it isn't science.

harold · 9 January 2013

Steve P. said: ....but wait Harold, if you are implying that Woese is not wrong, then why lambast Behe for this off-hand remark that a single progenator cell started life's evolutionary (non-darwinian of course) track? ...btw, your list has been answered twice....you know what they say about repetitive behavior. ...no, you don't gots to get paid! http://www.youtube.com/watch?v=kaIZWjItReI
harold said:
Steve P. said: What is interesting Douglas, is that Woese, like lots of proponents of Darwinian evolution, trot out the YEC 'individual crafting of parts like a machinist' position as also being an ID position, which is patently untrue. In fact, ID has no such debt to YEC. Even Darwinian evolution skeptic Michael Behe made an off-hand comment that a single progenitor cell was a plausibility, an idea compatible with Woese' take on early life. So this seems just another strawman characterization of the ID position. What is more curious though, in the context of this OP is that no matter what scenarios are proposed by people like Woese, these ideas can all live under the humongous Darwinian evolutionary tent. No scenario left behind.
Now is your chance to prove Woese wrong. 1) Could any evidence convince you of the theory of evolution, and if so, what type of evidence is now lacking, that would convince you if present? 2) The Supreme Court ruled against the direct teaching of Biblical Young Earth Creationism as science in public schools; however, if that ruling were overturned, which would you support more, teaching of ID, or direct teaching of Bible-based YEC? 3) Do you think it is important for opponents of the theory of evolution to fully understand the theory of evolution? If so, can you explain it, and if not, can you explain why not? 4) Who is the designer? How can we test your answer? 5) What did that designer do? How can we test your answer? 6) How did the designer do it? How can we test your answer? 7) When did the designer do it? How can we test your answer? 8) What is an example of something that was not designed by the designer?
No ID/creationist has ever given me reasonable answers to these simple questions. Steve P basically can't/won't explain ID, and can't/won't explain the theory of evolution. That is not unusual.

Just Bob · 9 January 2013

Steve P. said: ...a not so clever, limp wristed attempt to bait a Darwinian evolution skeptic into being accused of derailing a thread. ...maybe PT moderators should take a look at BWing these types of home-grown posts.
Just Bob said: Hey Stevie, what would we gain by switching over to ID-inspired science?
... And of course Stevie came back with a powerful, stiff-wristed answer to the question, right? ... Home-grow posts? As opposed to what -- factory-made posts? Purchased at Walmart posts?

j. biggs · 9 January 2013

Steve P. said: eric, contrast the ID postion with the ND position: ND: we don't know how life got started...but without doubt it was a combination of physics and chemistry... ID: we don't know how life got started...but without doubt is was information interacting with physics and chemistry...
So basically you are saying that ND and ID say the same thing, or at least agree that physics and chemistry were integral to the development of biological life. I am not quite sure what you mean by "information interacting with". How can we observe this "information" interaction? What form is the information in and how exactly do you demonstrate it has any effect on physics/chemistry? BTW, I think virtually no biologist would claim that organisms don't contain information, but for the moat part, this information seems to be information about the development, environment and historical lineage of that organism.
...your continued attempts to imply that design requires the identity and method of a supposedly human like yet ethereal entity suggests you are purposefully twisting the ID position to make it easier to rebut...create a weak link and break it with tweezers...bolts cutters are way too expensive.
Fine, don't focus on who or what the designer is. Let's focus on what you said ID posits, information as an independent efficacious entity. Focus on demonstrating that information does what you say it does. i.e. demonstrate that information is a discrete entity which has observable effects and interactions with matter that produce design.
So I suppose to keep the logic consistent, we need to ask you for the identity and method of the physics and chemistry that started life and provided the conditions for Darwinian evolution...no but wait!; darwinian evolution does not depend on abiogenesis... separate issues! so I can't require this of you.
It's fair enough to ask, however if you research it yourself, I think you would find (were you honest) that abiogenesis research has produced many interesting candidates in myriad hypothetical environmental conditions on an eclectic array of substrates. What we have observed are possible pathways self-replicating proteins and nucleotides could have spontaneously generated. And I will honestly tell you that science will most likely never know the exact pathway that lead to the first life form on earth. What science has demonstrated is that what many ID proponents and Creationists say is impossible appears not only to be possible but probable. Now you act like it is unfair that evolution doesn't require knowing how the first life form came to be in order to work. It isn't. Evolution mainly demonstrates how natural pressures operate on populations of organisms. I have admitted that abiogenesis is an interesting question that is related to evolution, but evolution is also related to cell and molecular biology, biochemistry and the whole gambit of biological sciences yet it doesn't depend on knowing every detail of those disciplines.
With this in mind, ID is not required to propose the identity or method of a designer...simply contrast the ID position with the ND position by inserting a key conceptual element that ND denies...the existence of information as an independent and separate physical entity that interacts with physics and chemistry.
You keep saying this. Now show us exactly how "information as an independent and separate physical entity" interacts with physics and chemistry to produce design. The onus is on you to demonstrate that your claim is accurate.
...yeah, you can wag a crooked finger at ID to please your perps....but it is ID that will overtake ND....just a matter of time. ...but we all know ND will attempt to co-opt ID's information as a separate entity concept and claim it fit with ND all along....we knew THAT!
Well since ND seems to have things mostly right and ID seems to have basically nothing demonstrable; I won't hold my breath. And certainly information isn't a new concept in science or biology, but the term is certainly used differently than how you seem to be using it. So far it isn't demonstrable that information does any of the things you say, but I eagerly await the results of any research from your camp that would vindicate your claims.

eric · 9 January 2013

Steve P. said: eric, contrast the ID postion with the ND position: ND: we don't know how life got started...but without doubt it was a combination of physics and chemistry... ID: we don't know how life got started...but without doubt is was information interacting with physics and chemistry...
IMO this is a complete mischaraterization of the mainstream position, which is better described as: we don't know the details of how life got started, but all of the evidence collected so far is fully consistent with a combination of physics and chemistry. Implied in the better description is the standard scientific caveat that this is a tentative conclusion, subject to revision should new evidence arise. I agree with you in your characterization of ID. They do indeed believe "without doubt" that life was designed. One of the key differences between mainsteam science and ID is that where mainsteam science concludes natural processs, ID assumes or premises design based on preconceived, mostly religious beliefs. The claim of design is stuck in the wrong end of the argument; it should be the end, not the start. That is one of the reasons it is not science.
...your continued attempts to imply that design requires the identity and method of a supposedly human like yet ethereal entity suggests you are purposefully twisting the ID position to make it easier to rebut...
Certainly a testable hypothesis is easier to rebut than an untestable one. That does not make the untestable one better. Scientifically speaking, its still worse. So yes, the details I am asking you to provide will make a design hypothesis more fragile in terms of what it might take to refute it. But any real scientist would welcome that fragility as a necessary step in doing real science. If asking for details that I can test is "twisting" the ID position, then there is pretty much no help for you. You've defined your own idea out of science.
the existence of information as an independent and separate physical entity that interacts with physics and chemistry.
I am skeptical you have any evidence of this claim. Care to show me your infomometer? What are the properties of the fundamental partcle of information - does it have charge? Spin? Mass? What is the force carrier?
but we all know ND will attempt to co-opt ID’s information as a separate entity concept and claim it fit with ND all along.…we knew THAT!
Somebody else might try to bogart your bullflop, but I won't. You are welcome to it.

PA Poland · 9 January 2013

Steve P. said: Douglas, of course HGT is a challenge to Darwinian evolutionary theory.
Why would you 'think' that ? Given the FACTS that HGTs are easy to detect, and far more prevalent in prokaryotes than eukaryotes, upon what basis (other than a pathological need to sneer at evolution and everything beyond your feeble understanding) do you assert that 'HGT is a challenge to Darwinian evolutionary theory' ?
..co-opting this concept is simply an attempt to punt the ball....as I alluded to several times in a discussion with Flint in a past posts, how does one account for the ability of early life to possess any 'abilities' - but specifically in this context, the ability to recognize new genes and utilize them, the ability to copy and release them to other organisms?
How, EXACTLY, is adding an OBSERVED FACT OF BIOLOGY that is fully consistent with what is already known 'punting the ball'? It is an OBSERVED FACT that the probability of a random peptide ~70 aa long or so having a selectable function is 1 in 10^9 to 1 in 10^15. So there was a LOT of potential. Toxic sequences would not last long in a population. Useless sequences would tend to be lost to drift, or might get lucky and take over (odds vastly favor loss). Useful sequences tend to be retained in a population. Demographics fully explains what you desperately 'need' intelligence to explain. Bacteria can readily pick up DNA from the environment - if it isn't digested, there is a chance it may be incorporated into the DNA. The field of molecular biology RELIES ON THE FACT THAT BACTERIA CAN BE 'TRANSFORMED' easily - just a heat shock in the presence of calcium is enough to get DNA in the media into the cells. Progenotes (life earlier than bacteria) could probably exchange DNA segments by simply fusing with other progenotes, then dividing again (shuffles everyone's genes). Thus 'useful' sequences become more common, while deleterious ones are lost. Eventually vertical transmission of DNA 'information' became stable enough to become the dominant mode.
...all these myriad mechanisms which existing at the start of life are never adequately explained by ND, just a simplistic explanation and then 'OK, folks lets move on'.
And ID 'fully explains' IT'S mechanisms ? ND does explain its many KNOWN mechanisms - IDiots then blubber " ** I ** can't/won't see how that would work, so it didn't !! DESIGNERDIDIT !!!!"

Rando · 9 January 2013

So Stevey says he's answered the "Harold List," okay Stevey since I've been running around the internet with it too, I have made my own additions to the list. Why don't you try answering my additions to the list.

1) The DI is always arguing that they are capable of “detecting design.” Explain the methodology of “detecting design?”

2) The DI is always using “Complex Specified Information” to say that design can be demonstrated. Okay, what is “Complex Specified Information?” Can it be quantified? How is “information” measured? How much “information” does it take to make a man? A fish?

3) Maybe you want to discuss the odds of evolution. Okay, what are the odds? Can you explain how they came up with that number? Can you show the exact calculations they used to produce this number? If that’s too hard, can you at least tell us where to start to calculate the odds?

In addition to answering my questions I want you to either answer the "Harold List" again or post a link to the answers so that I can see them.

Mike Elzinga · 9 January 2013

Steve P. said: So I suppose to keep the logic consistent, we need to ask you for the identity and method of the physics and chemistry that started life and provided the conditions for Darwinian evolution...no but wait!; darwinian evolution does not depend on abiogenesis... separate issues! so I can't require this of you.
Here is a little exercise that ID/creationists, to a person, are unable to do; and this includes you. The reason you cannot do it is because it requires knowledge of high school level chemistry and physics and at least some ability with algebra. Scale up the charge-to-mass ratios of molecules separated by the nanometer distances at the atomic level to kilogram masses separated by distances on the order of meters. Use that to scale up the electron volt energies of interaction at the atomic level to the energies of interaction at that macroscopic level. All you need to do is get some orders of magnitude. Hint: the results are on the order of 1010 megatons of TNT. Given that knowledge, why do you think that things like tornadoes in a junk yard are appropriate ID/creationist metaphors for how atoms and molecule interact? If you understood even a tenth of what such simple estimates imply, you might question your assertion that physics and chemistry can’t lead to biological organisms. I will assert that you cannot even begin to understand how to do what high school physics and chemistry students can do. You will sneer and avoid the issue.

bigdakine · 9 January 2013

Steve P. said: ....but wait Harold, if you are implying that Woese is not wrong, then why lambast Behe for this off-hand remark that a single progenator cell started life's evolutionary (non-darwinian of course) track? ..
Thats a little confusing Steve.. Behe claims that life began with a progenitor cell that was heavily front loaded. Is that what Woese claims? If so, would you mind pointing out where?

Rolf · 9 January 2013

harold said:
Rolf projects an honesty onto ID/creationists which he possesses, but they do not
Not that it matters much, but what I had in mind is that besides the obvious reason harold mentions, I believe that many creationists simply avoid making a honest attempt at understanding the ToE, maybe because they already "know" that evolution is false and won't risk learning anything contrary.

harold · 9 January 2013

Behe claims that life began with a progenitor cell that was heavily front loaded.
I've begged ID/creationists to explain "front loading". If it means that early cells already had every useful gene that would ever be expressed in the biosphere, it's absurdly and obviously wrong. If it means that early cells had the capacity to give rise to the entire contemporary biosphere, it's trivially true, but also the exact thing that ID/creationism is supposed to deny. If it means something else, well, no-one has ever explained what else it might mean in any way that I can understand.

Steve P. · 9 January 2013

Just Bob, ask a question about Woese and I'll do my best to answer it.
Just Bob said:
Steve P. said: ...a not so clever, limp wristed attempt to bait a Darwinian evolution skeptic into being accused of derailing a thread. ...maybe PT moderators should take a look at BWing these types of home-grown posts.
Just Bob said: Hey Stevie, what would we gain by switching over to ID-inspired science?
... And of course Stevie came back with a powerful, stiff-wristed answer to the question, right? ... Home-grow posts? As opposed to what -- factory-made posts? Purchased at Walmart posts?

Douglas Theobald · 9 January 2013

Too much off topic, off OP, so shutting down.