Schneibster
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- Oct 4, 2005
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I could not have said it better myself, articulett, and I've been trying for a couple weeks.
I could not have said it better myself, articulett, and I've been trying for a couple weeks.
I generally appreciate well-informed opinions, even those that disagree with my own, provided, of course, that they really seem well-informed.
Thanks. It is a matter of priorities, though. I may simply decide the more-detailed write-up is simply not worth my time. But, if I do write up such a thing, I will give you a copy, before I post it, anyway. Just in case you find a valid criticism in it, (although that is a rare occurrence for you).in response to Wowbagger's suggestion that he might post his opinions elsewhere I can only say that my work is intended to be a public document. Within normal parameters, I am happy for you to post what you like wherever you like.
If you must know, my real name is Mitchell S. Lampert. Let me know if you use my name, but you really do not have to, unless you quote me directly.(You should note, however, that I will not acknowledge your contribution under the name of Wowbagger; if you want an acknowledgement your comments I require proper identification.)
I never claimed to be an expert. I am a professional software developer and an amateur film maker. But, I also take an amateur interest in several scientific topics, including biology. I can say, with confidence, that I have read more biology books than the average person.I do not know your background but I am uneasy about some of your comments and I think you know little chemistry or molecular biology.
Ah, perhaps. But, the general idea is still valid: many variations of many different numbers emerged, at different times, before an "optimal" number was settled on, and stuck with.For example, you confuse the number of bases in a codon, which is three, with four, the number of bases in the genetic code’s alphabet.
Emphasis mine. What I suggested is a product of evolution. I do acknowledge such an outcome must evolve.Further, you do not seem to understand the chemical difficulties inherent in some of your later comments, blithely suggesting that genes might wrap themselves in lipids, rather than acknowledging that such an outcome must evolve and that you need to suggest the selective mechanisms that could produce such an outcome.
This does not address the points I made, out of my perceptions.In addition, you seem to me too enamoured of your own perceptions, which you, sometimes incorrectly, perceive to be the conventional wisdom. You seem, in essence, unwilling to think through or even countenance any criticism of your current position.
Oh, well, if they are not replicating genes, then why are they replications of the same genes in different places?I am uneasy about that reluctance, especially as you do not acknowledge even some fairly obvious corrections to your own claims – such as your incorrect claim that transposons are replicating genes.
Last time I checked, (and I could be wrong), Dawkins accepts the fact that genes need a little help to replicate, but that since they are the fundamental target of selection, it is not a stretch to claim they were the fundamental replicator. Perhaps he acknowledges there is no empirical evidence for the "origins" part, yet. (again, I could be wrong. I hate putting words into people's mouths). But, the idea has merit, based on what studies have been done in various fields, including embryology, and controlled experiments with chemicals, and computer models.The fact is that no modern gene replicates - even Dawkins accepts that - and there is no evidence at all that any gene was ever a replicator.
It is only a fundamental science of biological evolution, because it is the genes that primarily express how an embryo develops, or at least that aspect of embryology that is inherited from the parents. (Various environmental factors in and around the womb, could also play a role, but they are not inherited.)My problem is that genetics is often treated if it were the fundamental science of evolution and, logically, I do not think it should have such a status.
Fine. So, your "data" is more fundamental. And, I say that "data" for biology, is in the form of genes, therefore genes are fundamental. What is the problem?I do argue that my ideas of bioepistemic evolution - evolution based on data - is the most fundamental description of evolution yet offered and is compatible with genetics. Thus genetics should be seen as a special case of a more general evolutionary theory – bioepistemic evolution.
I like what articulett had to say on this matter of memes:I do take a harsh view of memes. In my opinion, memetics possesses neither a body of empirical data to be systematised nor a theoretical foundation. I simply cannot see any merit in such work at all – except, perhaps for an ability to generate large volumes of pseudoexplanatory verbiage.
But, perhaps your harsh view has more to do with your failure to conceptualize just what defines a replicator, in a general sense. Memes, which can demonstrate a certain level of longevity, fecundity, and fidelity, is what makes them so.It's not science or pseudoscience--it's a language tool--a concept for understanding. It's just a way of talking about what makes an idea get passed on. Systems evolve from the bottom up--be it planets, solar systems, humans, cities, technology, forums, languages, currency systems, libraries (and/or they die out)--Meme is just a way to refer to the why and how they do so.
Well, since the specifics of the chemistry was out of my league, I decided not to comment on them. Only to acknowledge that, in general, the idea could work, even if the specifics turn out to be less than accurate.I am glad that you acknowledge that my work on prebiosis may be correct. I agree with you, but I would have liked more of your commentary to be directed toward a criticism of the original content of that work. You didn't really need to read the later files to know my opinion of genes as replicators or of memes.
Why couldn't genes-as-replicators also be the process of simple chemistry? Or at least cumulative adaptation, over time, that lead initially simple chemistry to more complex structures? The best evidence we have, as far as I know, are computer models, so far. But, it is not like genes-as-replicators is as improbable as you make it out to be.By contrast, the idea that genes were once replicators is basically ridiculous, and drips with improbable, not to say impossible, postulates and implications.
It does take more than parsimony to make a good scientific theory. It also takes empirical studies, if any can be done.Trying to compromise by merging that idea with the theory of prebiotic oscillations would eradicate the parsimony that is one of the main attractions of my work.
Since when is nature obligated to make anything non-variable? Modern genetics deals with what nature tosses us. Genes are only a model, to help describe what is going on. They are not intended to be the be-all, end-all, well-delimited units of inheritance, any more. If Fisher felt that way, that's his problem, not the modern geneticist. Your idea that it carried-over is an exaggeration. (You could blame the media, somewhat, which still belches out stories about "genes for something" getting discovered.)if everything is a variable, you have no theory.
I did not say that! I said all forms of evolution need something that can vary to the whims of selection pressures. In biology, that is genes. For other forms of evolution, that may be something else.Evolution, as you acknowledges, is applied to several fields besides biology but you seem to be claiming that there is some reason for treating biology as a prototype of all evolutions.
So, then how is your "data pattern" different from "genes"?Hence I assert that, during biological evolution it is the data pattern in DNA, not DNA itself, which evolves.
Why can't those social "data patterns" be called "memes"?Thus, social data patterns do not need to be analogous to genetic data patterns except in being data patterns.
Alright, I should not have used the word "duh". Sorry about that.Please do not "Duh" me, especially when you don't know the field in question.
Acknowledged. And, I agree.I agree that natural selection mechanisms can have more than one data/power input but I do not think that alters my argument in any material way.
You misunderstand. The "vehicle" is not the organism. It is those aspects of the organism that are not, themselves, the principal subject of natural selection. Merely, what aids what is the "principal subject" in its survival. That is the general concept.I cannot see value in using the word "vehicle" instead of organism.
The problem was not the word "boring", so much as the implication that the pattern is purely a simple 1,0,1,0. This is only a minor point, and also does not alter your idea in any material way. But, it may be worth noting that, strictly speaking, since some days are going to be brighter than others, the pattern could more realistically be something like: .8, 0, .72, 0, .631, 0, .999; or on "bad" weeks: .4, 0,.21, 0, 0, 0, .112, 0The mechanism of evolution by selection of prebiotic oscillations would not work unless the sun's cycle were regular – in other words boring, but I shall probably remove that word.
Sounds almost like a false-choice. Maybe both developed at the same time. Maybe "data carrying" is the phenotype of molecules subject to replication and selection.Either data carrying molecules evolved first or metabolism evolved first. I agree with their approach and my mechanism is a metabolism first theory – I don't think data carrying molecules would have arisen before phenotypes existed to be described by data. Thus, I think phenotype came before genotype.
Perhaps. But, until you develop the level of evidence that Selfish Gene theory has going for it, I am going to side with what seems more plausible, based on what we know, today. And, today, we can clearly see that genes are "in charge".Insofar as those hypothetical protocells meet those criteria you could regard them as alive. On that basis, I assert that life, life defined by its ability to move, feed, grow, excrete, reproduce and respond to stimuli, could have emerged, by the evolution of prebiotic oscillations, from the primordial soup. That life would initially have contained no DNA, no genes and no genetic apparatus.
Perhaps. I hope you are able to develop this idea, with further studies and experiments. I acknowledge that it could have merit. But, until the ideas I communicated in favor of genes-as-replicators are fully addressed, I am unlikely to shake off the idea as purely "junk". And certainly, I would hope you recognize that is more scientifically plausible than "God created heaven and Earth."!But it would have contained an energy metabolism, presumably involving nucleotides, and thus a supply of precursors for nucleic acid synthesis that would create the potential for data carrying nucleic acids to emerge via further evolution. In other words, such protocells would have solved virtually all the dilemmas that lead us to feel that the emergence of life is so improbable. They would have provided us with an excellent environment within which a genome and a genetic apparatus could have emerged. Exactly why and how such an apparatus might have emerged by evolutionary selection is another topic.
Continuing my commentary from my last post in this thread:
Part 7: http://www.sexandphilosophy.co.uk/pe07_theories_of_prebiosis.htm
Whew boy! Lots to say here! He starts off very nicely, describing the sorts of criteria one ought to use for judging theories of prebiosis (although they are good for other lines of science, as well.) But, then things break down a bit, when he begins to criticize the competition.
Your work still does not address the issues I brought up, as nicely as the "conventional" theories do. Read my last post (the response to your response), for the details about them, again.I really have two problems with his commentary; first, that he takes some of the conventional notions seriously and does not seem to understand the magnitude of the problems those theories entail. Essentially, he just waves his hand over problems that are, in fact, profound and, prior to my work, seemingly intractable.
The "origins" portion of evolutionary theory already does that. Granted, the empirical evidence for what actually happened is relatively thin, given that it took place eons ago.In addition, he suffers from a failure to understand some accepted aspects of evolutionary theory itself.
Let us begin with the second point. Wowbagger attacks "my" assertion that evolution, as usually articulated, is not a theory of origin but a theory of change.
...(snip)...
To be a theory of origin, evolution must draw axiomatic inputs only from fields that are logically prior to biology, namely chemistry and physics, the latter including IT.
Nature does not divide its "concepts" so easily into "physics", "chemistry", and "biology". These are merely words we humans invented, to help categorize our scientific models. I fail to see how simply bringing a "concept" from biology as an input into "biology" would automatically create an infinite regress. What is biology but an application of chemistry and physics?A theory of origin is a theory of how life arose from chemistry and physics, so you want physics and chemistry as an input and life as an output. If such a theory takes a concept from biology as an input, it will fail through infinite regression.
I am trying to be very patient with you. Don't insult me by bringing up "spaceships" as a serious alternative for the origins of life! If you do it again, I am afraid I am going to have to make fun of you, somehow.Francis Crick, who needs no introduction, joined with Orgel and concurred. They agreed that life coming to earth in spaceships was more likely than life emerging on our planet.
I'll admit these very controlled experiments are less than conclusive on what actually happened. But, the chemistry works. As long as it does, I would say it is relevant to continue research in that direction. Maybe someone smarter than you will figure out how similar reactions could have occurred, in an uncontrolled environment.Silicate surfaces. We can demonstrate that some clays, notably montmorilonite, are catalytically active. What we need to do is clean them chemically, then bake them to drive chemical residues off the surface, then dry them out. Oh, and we need certain clays, no clays work without being pretreated and most deposits don't work at all. Then we feed them activated RNA precursors. I won't go on, I will just say that these conditions do not seem to me relevant to a prebiotic soup.
I'll ask Cairns-Smith about that, next time I see him or one of his colleagues.Lets try another. Silicate crystals, Cairns-Smith suggests were once the genome of primitive cells. Now, please, wowbagger tell me there is evidence for this. I will say no more about and just await the presentation of this evidence.
(emphasis added)Perhaps the most popular current idea is that life once depended on RNA. All organisms consisted of RNA and then, later, protein and DNA came along and took over. These RNA molecules were presumably your replicating genes. But where, I wonder, did all those little RNA precursors come from and how did they all stay together? Could it have been clays that did it? No, it couldn't. Honestly, Orgel is right, spaceships really are more probable.
I'm not the one to decide such things, thanks.A popular theory is that life emerged at the oceanic ridge in black smokers. I suggest you consider that one. Is it a theory of origin, or is it a theory of where the origin took place? Is the fact that some simple life forms are found there now good evidence of that location? I'll let you decide.
(Emphasis added.)I will just say that, to the best of my knowledge, there is only one, parsimonious theory for the origin of life, and you read it on my site.
The "origins" portion of evolutionary theory already does that. Granted, the empirical evidence for what actually happened is relatively thin, given that it took place eons ago.
But, it is not like "RNA-World" has no merit what-so-ever, to be that origins portion, which is what you seem to imply. I would like to see what empirical evidence you have compiled for your work.
Nature does not divide its "concepts" so easily into "physics", "chemistry", and "biology". These are merely words we humans invented, to help categorize our scientific models. I fail to see how simply bringing a "concept" from biology as an input into "biology" would automatically create an infinite regress. What is biology but an application of chemistry and physics?
Having said that, I think I know what you mean: Life forms, as we define them, could not have originated from other life forms, because that would lead to infinite regress. That does not mean that using a "concept" from biology in the origins of life forms must also do so.
Fine. We'll narrow it back down to one issue:In any case, in my opinion this thread is becoming too varied, with too many separate issues being chased. It is difficult to deal with each of them and it would help if you could specify which particular points you want to focus on.
Fine. We'll narrow it back down to one issue:
You don't think Crick was being foolish, when he was developing Directed Panspermia; and yet you seem to think Dawkins is a fool for pursuing memes. My question is this: How much of an arrogant snob does one have to be, to decide what "crazy" ideas should and should not be worthy of serious investigation?
Fine. We'll narrow it back down to one issue:
You don't think Crick was being foolish, when he was developing Directed Panspermia; and yet you seem to think Dawkins is a fool for pursuing memes. My question is this: How much of an arrogant snob does one have to be, to decide what "crazy" ideas should and should not be worthy of serious investigation?
I don't think John Hewitt is an "intelligent designer". He is clearly insistent on prebiotic evolutionary explanations for the origins of life. He only brought up the topic of Panspermia to claim that smart folks thought it was "more plausible" than "RNA World", in the past, and that he claims his own theory is even more plausible than both.You don't really even need to be an arrogant snob...you just have to have an "intelligent designer" that Dawkins' doesn't believe in.
If any of these were not meant to be arrogant, perhaps you should retract them, and rephrase them:I don't think that I have called anybody names and I do not consider my comments to be arrogant.
I dislike Dawkins' work because it is inaccurate and dogmatic.
But where, I wonder, did all those little RNA precursors come from and how did they all stay together? Could it have been clays that did it? No, it couldn't. Honestly, Orgel is right, spaceships really are more probable.
I will just say that, to the best of my knowledge, there is only one, parsimonious theory for the origin of life, and you read it on my site.
From your paper:
There is no more evidence for the notion of genes as replicators than there is for the idea that God created the heavens and the earth.
I agree. But, I can't help it, when someone claims they are a lone genius and that everyone else is automatically wrong.In general, I think it a bad idea to personalise scientific debate.
On what basis? That "biological concepts" were used in it? That's nonsense logic. At least the currently accepted batch of abiogenesis theories have some empirical evidence to support them. Logic has to work around the evidence. You can't assume the evidence is wrong, simply because it doesn't fit your logic.I am trying to explain the difference between a theory that has a valid logical structure and one that doesn't. In my opinion, many of the theories of abiogenesis (prebiosis) have invalid logical structures.
Even if it never plays a central role, it is hardly "junk science", as you called it.A meme is just a word, with no meaningful definition associated with it. In consequence, I think that a meme cannot play a central role in a valid theory of social evolution.
I already gave you a meaningful definition. And, as a model, memetics could very well play a central role in thinking about how ideas spread, and die out. They spread and die out through social selection pressures, with each idea (meme) competing against all the others, for survival. Why is that such a hard concept to swallow?
Emphasis added.Finally, I do insist that it is wrong to include biological concepts or materials in evolutionary accounts of prebiosis.
That was inadvertent. If you have another option, you can offer it, as you did.I do feel the OP inadvertently sets up a classic excluded middle fallacy which we are being sucked into.
...How is this "alternative" different from a protoscience, though? If it is a fertile idea, with potential scientific merit, whose details have yet to be ironed out precisely, I would say that is a good protoscience. But, if your definition of a protoscience differs, let me know.There is no reason to think "memetics" is either pseudoscience or protoscience. I don't think it's "a science" at all.
It's an alternative - and in some cases fertile- view of how behaviour, culture and other forms of information based activity may evolve in the context of humans or human machines.
Emphasis added.The point of the meme, as others have stated here, is that the meme might reproduce purely because it could in the appropriate environment.
Dawkins was actually stepping away from any hardline neoDarwinist utilitarian adaptationist orthodoxy. He was saying that human behaviour might well evolve for reasons that has nothing at all to do with it's utility to humans, evolutionary or otherwise. He even gave a religious example, predating "The God Delusion" by 30 years- along the lines of "You will burn in eternal torment if you do not accept this message and pass it on to others." Such a message has no proven value to humans at all, but just such a message has been successfully propagating itself for millennia.
More good examples.The behaviour is not survival positive, yet spreads because it is fashionable. That IS a meme. It cannot be explained by natural selection. It requires another selective explanation. Sexual selection IS memetic behaviour- certainly in humans, arguably in other animals.
And, again, if there is a theory, how is it not at least a "protoscience"?There is no memetic theory of evolution of biological organisms- we don't need one. We have Natural selection.
There is an evolutionary theory of memetic information.
It remains my opinion and that is why my work goes into Godel's theorem. In addition, I do not use concepts like "feeding" and "metabolism" and "motion", etc. as *inputs* into the theory; rather, I try to show how the selection of chemical oscillations can lead to behaviours that have these properties. In other words, I am describing how biological type behaviour can emerge from entirely chemical selections.Concepts: I think your logic, there, needs to be re-examined. Biological "concepts" are, themselves, merely applications of physics and chemistry, and possibly other "lower level" sciences. I see no reason to exclude certain biological concepts from origins theories. In fact, you do it yourself: You explain how the oscillations in your theory develop into acts of "feeding" and "metabolism" and "motion", etc.
Thou catchest me on the hop. I never heard the term "protoscience" before. I inferred it's meaning from it's structure. Sciences tend to start with observations, which become increasingly detailed and methodical. At some point an explanatory model is proposed. But does anything following that pattern merit the label "science"?...How is this "alternative" different from a protoscience, though? If it is a fertile idea, with potential scientific merit, whose details have yet to be ironed out precisely, I would say that is a good protoscience. But, if your definition of a protoscience differs, let me know.
Anything not forbidden, is mandatory.Wowbagger said:BTW, Since I'm the one who started this thread, I can allow it to get derailed, if I want to.![]()
Very good.It remains my opinion and that is why my work goes into Godel's theorem. In addition, I do not use concepts like "feeding" and "metabolism" and "motion", etc. as *inputs* into the theory; rather, I try to show how the selection of chemical oscillations can lead to behaviours that have these properties. In other words, I am describing how biological type behaviour can emerge from entirely chemical selections.
In other words, the exercise is doing what was intended, showing how biology can emerge from chemistry.