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snip that stuff
That's no problem at all. Just think about the enormous size of the universe, and about the billions of years it's been in existence. Even if the odds against spontaneous abiogenesis (life arising from nonliving matter) are astronomical, so is the scale of the universe itself, and the number of earthlike planets in the universe is enough to make many inhabitated worlds not only possible but probable. It just happened by accident. That doesn't mean that it doesn't have any meaning at all, and that there are no divine powers at work - it just means that the divine power didn't do it as the Bible tells us. It's just the world as the Jews saw it 3,000 years ago. There is no ultimate truth, there is no truth that is good forever - every truth is only true for a certain time, at a certain place. We will see new religions, new gods, new prophets, and they will be just as true as the old ones were back then. Nils -- Lord BlackLight aka Lord Helmet aka ElfBoi aka Lord Caramac the Clueless, NPIAB His Arrogance Pope Cereal I., KBB, GHMB, DHB http://kickme.to/elfboi/ |
#2
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![]() "Ed Conrad" wrote in message ... "On Page 234 of the book, "The Survival of Charles Darwin," written by Ronald W. Clark and published in 1984 by Random House: "The authors (astronomer Fred Hoyle and his colleague Chandra Wickramasinghe in their book, "Evolution From Space," rejected the Darwinian explanation of complex adaption on the grounds that the possibility of life arising on earth, defined as needing 2,000 enymes, each with an average of 200 amino acids, would be 10 to the 10,000th power, a figure that for all practical purposes ruled out such a chance." The primary problem with this calculation is that it assumes that there is only one possible end result. Using the poker analogy, this is like dealing a hand of poker, and then complaining that the odds of getting that particular hand are 1:311875200. Obviously, someone must be cheating. There are about 6 million humans on the Earth today, each of which is genetically unique. We aren't all constructed from the same set of proteins and enzymes. You can easily knock off several orders of magnitude just due to the existing variation within our species. What about the past? One million years ago, our biochemistry would have been different. Or we could go forward a million years. There is no reason to constrain our results to just this time, so considering past and future variation, we could easily knock off several more orders of magnitude. Why just our species? There are about 300 million species living on the Earth today, each with their own variation. And what about extinct species? These considerations could easily knock off several dozen more orders of magnitude. So far, we've just been looking at the existing variation. What about the possible variation? I have seen estimates suggesting that, for hemoglobin, only 7 to 11 of the residues are necessary for the function of carrying oxygen. All of the rest can vary in the particular amino acid used. If this is typical, then that is more than sufficient to remove all of the remaining orders of magnitude from Hoyle and Wickramasinghe's probability argument. Are all of the current proteins and enzymes even necessary? Could oxygen be transported by some means other than hemoglobin? Plants don't use hemoglobin. Single celled organisms don't use hemoglobin. Undoubtedly, there are biologists who could point out several other groups of organisms that do just fine without using hemoglobin. The first self-replicating organism may have been a simple RNA molecule using no proteins or enzymes. Using Hoyle and Wickramasinghe's argument, the odds of that happening were 1:1. Once life started, there is no reason it could not have developed the ability to use proteins and enzymes. They certainly would have been advantageous. Random mutation would have provided a wealth of options to choose from, and natural selection would have removed the options that didn't work. So there is really no reason to think that after 4 billion years of evolution, we wouldn't have a mere 2000 enzymes to work with. I'm actually surprized there aren't more. Once life began, some result was almost guaranteed. Like a poker hand, the result we got is just one of many possible results. |
#3
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Ok, here's the problem with your mathematics. Say -- just for
argument's sake -- that Hoyle and Wickramasinghe got it right, and the odds against life arising spontaneously really are 10^(10,000). Your argument goes: but there's 6 billion people on earth. Let's include all people who ever lived, and make it 10^10 people. Now the odds drop "dramatically," to 10^9990. Same with your other points. Take off "several orders of magnitude." How many is that? 10? 20? Ok, now we're down to 10^9970 against. I guess you can see how this is going to go. Use up all the possible alternative DNA sequences you mention, and all the ones no one has thought of yet, and you're still not going to make much of a dent in that enormous number. This is not to mention the small little problem that your assumptions don't really fit the case, anyhow. H & W weren't trying to compute the odds of the spontaneous occurrence of a Jack Crenshaw or a Ross Langerak; They were computing the odds of a DNA molecule capable of self-reproducing. It's already a given that, given a population of 6 billion humans, it's not that hard to create a few more. But that's not the question asked, is it? The real question is: What is the complexity of a simple molecule -- simple enough to form spontaneously, complex enough to be self-reproducing -- constructing itself through random chance? I don't think either your or I know enough to answer that question. I've been trying for years to get folks to tell me how many base pairs they think it takes to create a self-reproducing DNA molecule, but so far, no answer. Probably, it will be a long time before molecular biologists can really answer that question. Assuming -- again for the sake of argument -- that H & W got this right also, and 2000 enzymes of 200 amino acids is what is needed, one could pose the question this way: Given all the possible combinations of 2000 enzymes of 200 amino acids each, how many sets of those combinations produce anything useful? I don't know, and I doubt you do either. Presumable it's more than one set. But how many more? Also presumably, not a large percentage of the set of total possibilities. In any case, whatever the number is, one has to presume that a scientist of the stature of Fred Hoyle knows how to compute permutations and combinations, and wasn't so dumb as to assume that only one combination would work. In short, they got the math right the first time, so all your arm-waving is moot. Jack Ross Langerak wrote: "Ed Conrad" wrote in message ... "On Page 234 of the book, "The Survival of Charles Darwin," written by Ronald W. Clark and published in 1984 by Random House: "The authors (astronomer Fred Hoyle and his colleague Chandra Wickramasinghe in their book, "Evolution From Space," rejected the Darwinian explanation of complex adaption on the grounds that the possibility of life arising on earth, defined as needing 2,000 enymes, each with an average of 200 amino acids, would be 10 to the 10,000th power, a figure that for all practical purposes ruled out such a chance." The primary problem with this calculation is that it assumes that there is only one possible end result. Using the poker analogy, this is like dealing a hand of poker, and then complaining that the odds of getting that particular hand are 1:311875200. Obviously, someone must be cheating. There are about 6 million humans on the Earth today, each of which is genetically unique. We aren't all constructed from the same set of proteins and enzymes. You can easily knock off several orders of magnitude just due to the existing variation within our species. What about the past? One million years ago, our biochemistry would have been different. Or we could go forward a million years. There is no reason to constrain our results to just this time, so considering past and future variation, we could easily knock off several more orders of magnitude. Why just our species? There are about 300 million species living on the Earth today, each with their own variation. And what about extinct species? These considerations could easily knock off several dozen more orders of magnitude. So far, we've just been looking at the existing variation. What about the possible variation? I have seen estimates suggesting that, for hemoglobin, only 7 to 11 of the residues are necessary for the function of carrying oxygen. All of the rest can vary in the particular amino acid used. If this is typical, then that is more than sufficient to remove all of the remaining orders of magnitude from Hoyle and Wickramasinghe's probability argument. Are all of the current proteins and enzymes even necessary? Could oxygen be transported by some means other than hemoglobin? Plants don't use hemoglobin. Single celled organisms don't use hemoglobin. Undoubtedly, there are biologists who could point out several other groups of organisms that do just fine without using hemoglobin. The first self-replicating organism may have been a simple RNA molecule using no proteins or enzymes. Using Hoyle and Wickramasinghe's argument, the odds of that happening were 1:1. Once life started, there is no reason it could not have developed the ability to use proteins and enzymes. They certainly would have been advantageous. Random mutation would have provided a wealth of options to choose from, and natural selection would have removed the options that didn't work. So there is really no reason to think that after 4 billion years of evolution, we wouldn't have a mere 2000 enzymes to work with. I'm actually surprized there aren't more. Once life began, some result was almost guaranteed. Like a poker hand, the result we got is just one of many possible results. |
#4
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![]() "Jack Crenshaw" wrote in message ... The real question is: What is the complexity of a simple molecule -- simple enough to form spontaneously, complex enough to be self-reproducing -- constructing itself through random chance? The simple answer is one because it happened. The more complex answer is that we don't know exactly but we do know that there is far more than chance involved. There is chemistry and chemistry follows strict laws. (Except for the myth of titration, there is no pink) Life happened and I'll bet we create it before I die. I'd also bet that once done we will find other ways to do it. I'll also bet that it will be completely natural. |
#5
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Jack Crenshaw wrote in message ...
Ok, here's the problem with your mathematics. Say -- just for argument's sake -- that Hoyle and Wickramasinghe got it right, and the odds against life arising spontaneously really are 10^(10,000). Your argument goes: but there's 6 billion people on earth. Let's include all people who ever lived, and make it 10^10 people. Now the odds drop "dramatically," to 10^9990. Same with your other points. Take off "several orders of magnitude." How many is that? 10? 20? Ok, now we're down to 10^9970 against. I guess you can see how this is going to go. Use up all the possible alternative DNA sequences you mention, and all the ones no one has thought of yet, and you're still not going to make much of a dent in that enormous number. The number of people have absolutely nothing to do with the number of potential possible combinations. For that matter, neither do the number of organisms that have ever lived, which incidentally is enormous. Count all the bacteria that have ever existed, over the course of the last several billion years. The problem is that the 10^9970 number is entirely bogus. It represents nonsense on so many different levels it is difficult to know where to begin. The real question is: What is the complexity of a simple molecule -- simple enough to form spontaneously, complex enough to be self-reproducing -- constructing itself through random chance? Self replicating RNA molecules have arisen via natural means in the lab. |
#6
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![]() "Jack Crenshaw" wrote in message ... Ok, here's the problem with your mathematics. Say -- just for argument's sake -- that Hoyle and Wickramasinghe got it right, and the odds against life arising spontaneously really are 10^(10,000). Your argument goes: but there's 6 billion people on earth. Let's include all people who ever lived, and make it 10^10 people. Now the odds drop "dramatically," to 10^9990. Same with your other points. Take off "several orders of magnitude." How many is that? 10? 20? Ok, now we're down to 10^9970 against. I guess you can see how this is going to go. Use up all the possible alternative DNA sequences you mention, and all the ones no one has thought of yet, and you're still not going to make much of a dent in that enormous number. In that case, I should have started with the possible variations of proteins. That alone would remove most of the zeroes in Ed's argument. Then, given the number of species and the number of individuals to work with, the production of something is almost inevitable. This is not to mention the small little problem that your assumptions don't really fit the case, anyhow. H & W weren't trying to compute the odds of the spontaneous occurrence of a Jack Crenshaw or a Ross Langerak; They were computing the odds of a DNA molecule capable of self-reproducing. It's already a given that, given a population of 6 billion humans, it's not that hard to create a few more. But that's not the question asked, is it? I see. So Hoyle and Wickramasinghe were trying to calculate the odds against the formation of the first self-replicating organism? It's my understanding that the first self-replicating organism was most likely a simple RNA molecule. It's also my understanding that such a molecule has been produced in the lab. Since no enzymes were required, Hoyle and Wickramasinghe's calculations are bogus. The real question is: What is the complexity of a simple molecule -- simple enough to form spontaneously, complex enough to be self-reproducing -- constructing itself through random chance? It's my understanding that a self-replicating RNA molecule has been produced using only a couple dozen nucleotides. I don't think either your or I know enough to answer that question. I've been trying for years to get folks to tell me how many base pairs they think it takes to create a self-reproducing DNA molecule, but so far, no answer. Probably, it will be a long time before molecular biologists can really answer that question. I don't know of anyone who is suggesting that the first self-replicating molecule was DNA. RNA is far more likely, as RNA can also function as an enzyme. Assuming -- again for the sake of argument -- that H & W got this right also, and 2000 enzymes of 200 amino acids is what is needed, one could pose the question this way: Given all the possible combinations of 2000 enzymes of 200 amino acids each, how many sets of those combinations produce anything useful? Since the first self-replicating organism was most likely a simple RNA molecule, the question is pointless. If however, you are asking how the first organism requiring 2000 enzymes could have been produced, it isn't that difficult once our self-replicating RNA molecule develops the ability to produce one enzyme. Once it can produce one enzyme, it isn't that difficult to produce a second, and then a third and a fourth until it hits 2000 enzymes. If at any point an enzyme is added that is not beneficial, it is removed from the population. So you see, life didn't have to produce 2000 working enzymes all at once. Instead, it produced n working enzymes + 1 more, with n = 0 to 1999. With each advance, it added one more working enzyme to a list of existing working enzymes. I don't know, and I doubt you do either. Presumable it's more than one set. But how many more? Also presumably, not a large percentage of the set of total possibilities. In any case, whatever the number is, one has to presume that a scientist of the stature of Fred Hoyle knows how to compute permutations and combinations, and wasn't so dumb as to assume that only one combination would work. In short, they got the math right the first time, so all your arm-waving is moot. They may have gotten the math right, but it didn't represent a realistic scenario for the origin of life. Life didn't start by looking for a combination of 2000 enzymes that would work. Life started by looking for one enzyme that would work, and then adding to it a second, and then a third and a fourth. Adding one more to an existing combination isn't that difficult. Ross Langerak wrote: "Ed Conrad" wrote in message ... "On Page 234 of the book, "The Survival of Charles Darwin," written by Ronald W. Clark and published in 1984 by Random House: "The authors (astronomer Fred Hoyle and his colleague Chandra Wickramasinghe in their book, "Evolution From Space," rejected the Darwinian explanation of complex adaption on the grounds that the possibility of life arising on earth, defined as needing 2,000 enymes, each with an average of 200 amino acids, would be 10 to the 10,000th power, a figure that for all practical purposes ruled out such a chance." The primary problem with this calculation is that it assumes that there is only one possible end result. Using the poker analogy, this is like dealing a hand of poker, and then complaining that the odds of getting that particular hand are 1:311875200. Obviously, someone must be cheating. There are about 6 million humans on the Earth today, each of which is genetically unique. We aren't all constructed from the same set of proteins and enzymes. You can easily knock off several orders of magnitude just due to the existing variation within our species. What about the past? One million years ago, our biochemistry would have been different. Or we could go forward a million years. There is no reason to constrain our results to just this time, so considering past and future variation, we could easily knock off several more orders of magnitude. Why just our species? There are about 300 million species living on the Earth today, each with their own variation. And what about extinct species? These considerations could easily knock off several dozen more orders of magnitude. So far, we've just been looking at the existing variation. What about the possible variation? I have seen estimates suggesting that, for hemoglobin, only 7 to 11 of the residues are necessary for the function of carrying oxygen. All of the rest can vary in the particular amino acid used. If this is typical, then that is more than sufficient to remove all of the remaining orders of magnitude from Hoyle and Wickramasinghe's probability argument. Are all of the current proteins and enzymes even necessary? Could oxygen be transported by some means other than hemoglobin? Plants don't use hemoglobin. Single celled organisms don't use hemoglobin. Undoubtedly, there are biologists who could point out several other groups of organisms that do just fine without using hemoglobin. The first self-replicating organism may have been a simple RNA molecule using no proteins or enzymes. Using Hoyle and Wickramasinghe's argument, the odds of that happening were 1:1. Once life started, there is no reason it could not have developed the ability to use proteins and enzymes. They certainly would have been advantageous. Random mutation would have provided a wealth of options to choose from, and natural selection would have removed the options that didn't work. So there is really no reason to think that after 4 billion years of evolution, we wouldn't have a mere 2000 enzymes to work with. I'm actually surprized there aren't more. Once life began, some result was almost guaranteed. Like a poker hand, the result we got is just one of many possible results. |
#7
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![]() "Ross Langerak" wrote in message ink.net... snip I see. So Hoyle and Wickramasinghe were trying to calculate the odds against the formation of the first self-replicating organism? It's my understanding that the first self-replicating organism was most likely a simple RNA molecule. It's also my understanding that such a molecule has been produced in the lab. Since no enzymes were required, Hoyle and Wickramasinghe's calculations are bogus. snip It should be noted that Hoyle was an astronomer (and fair sci-fi writer). I'm not sure what Wickramasinghe was but neither were biologists. |
#8
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![]() Mike Painter wrote: "Jack Crenshaw" wrote in message ... The real question is: What is the complexity of a simple molecule -- simple enough to form spontaneously, complex enough to be self-reproducing -- constructing itself through random chance? The simple answer is one because it happened. Wow! What a powerful argument! How much research did it take you to come up with _THAT_ one? Misdirection. No one disputes that it happened. I thought we were talking about how. The more complex answer is that we don't know exactly but we do know that there is far more than chance involved. There is chemistry and chemistry follows strict laws. (Except for the myth of titration, there is no pink) Which laws did you have in mind? Are there some I'm not aware of -- also neither Hoyle nor Wickramasinghe -- that restrict the possible assembly of amino acids into more complex molecules? Life happened and I'll bet we create it before I die. I'd also bet that once done we will find other ways to do it. I'll also bet that it will be completely natural. As in, "The man, be-aba, the woman, be-aba," or did you have less natural processes in mind? Assuming that you're right, what would it prove? That life can be created by an intelligent designer? In any case, I admire your optimism. Never lose it. Stanley Miller's been trying for 50 years, with no success. But hey, don't let that discourage you. Jack |
#9
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![]() Pavil Natanovich wrote: Jack Crenshaw wrote in message ... Ok, here's the problem with your mathematics. Say -- just for argument's sake -- that Hoyle and Wickramasinghe got it right, and the odds against life arising spontaneously really are 10^(10,000). Your argument goes: but there's 6 billion people on earth. Let's include all people who ever lived, and make it 10^10 people. Now the odds drop "dramatically," to 10^9990. Same with your other points. Take off "several orders of magnitude." How many is that? 10? 20? Ok, now we're down to 10^9970 against. I guess you can see how this is going to go. Use up all the possible alternative DNA sequences you mention, and all the ones no one has thought of yet, and you're still not going to make much of a dent in that enormous number. The number of people have absolutely nothing to do with the number of potential possible combinations. For that matter, neither do the number of organisms that have ever lived, which incidentally is enormous. Count all the bacteria that have ever existed, over the course of the last several billion years. The problem is that the 10^9970 number is entirely bogus. It represents nonsense on so many different levels it is difficult to know where to begin. Therefore, you choose not to? The real question is: What is the complexity of a simple molecule -- simple enough to form spontaneously, complex enough to be self-reproducing -- constructing itself through random chance? Self replicating RNA molecules have arisen via natural means in the lab. Citation? Jack |
#10
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![]() Ross Langerak wrote: "Jack Crenshaw" wrote in message ... Ok, here's the problem with your mathematics. Say -- just for argument's sake -- that Hoyle and Wickramasinghe got it right, and the odds against life arising spontaneously really are 10^(10,000). Your argument goes: but there's 6 billion people on earth. Let's include all people who ever lived, and make it 10^10 people. Now the odds drop "dramatically," to 10^9990. Same with your other points. Take off "several orders of magnitude." How many is that? 10? 20? Ok, now we're down to 10^9970 against. I guess you can see how this is going to go. Use up all the possible alternative DNA sequences you mention, and all the ones no one has thought of yet, and you're still not going to make much of a dent in that enormous number. In that case, I should have started with the possible variations of proteins. Yes. That alone would remove most of the zeroes in Ed's argument. Then, given the number of species and the number of individuals to work with, the production of something is almost inevitable. Almost _INEVITABLE_? How does that follow? This is not to mention the small little problem that your assumptions don't really fit the case, anyhow. H & W weren't trying to compute the odds of the spontaneous occurrence of a Jack Crenshaw or a Ross Langerak; They were computing the odds of a DNA molecule capable of self-reproducing. It's already a given that, given a population of 6 billion humans, it's not that hard to create a few more. But that's not the question asked, is it? I see. So Hoyle and Wickramasinghe were trying to calculate the odds against the formation of the first self-replicating organism? That was my understanding. It's my understanding that the first self-replicating organism was most likely a simple RNA molecule. AFAIK there is little or no agreement as to _WHAT_ that first organism was, or how it worked. Most likely, the mechanism by which it replicated was several generations removed from the mechanism of DNA. I think the best likelihood is that _SOME_ mechanism (layers of clay have been suggested) kicked things off and got life started, and then more efficient mechanisms such as RNA and DNA evolved and took over We don't see the Adam molecule today, because it would be quickly gobbled up by all those more efficient little boogers. I don't think there is a consensus that the first life was RNA. Some have pointed out that it's almost certainly not DNA, since the replication of DNA only occurs inside a cell and requires a host of supporting players like enzymes, ribosomes, etc. -- all of which would have to be in place _FIRST_ before the DNA could reproduce. Because of the problems with DNA, RNA has been suggested. It also makes a modicum of sense, since it is a simpler molecule of sorts. Only problem: The reproduction of RNA requires an even _BIGGER_ cast of supporting characters. In nature, RNA only reproduces as in viruses, which need a host cell to provide the "infrastructure." Perhaps it's not possible to figure out what really was the first self-replicating organism. Perhaps it's so far removed from RNA and DNA that there is no recognizable similarity. Still, it would be nice to _KNOW_, wouldn't it? Seems to me, doing the research to figure it all out is a lot more worthy endeavour than sitting on a newsgroup looking for fundies to toy with. It's also my understanding that such a molecule has been produced in the lab. So it's been said. It's true, there are people working to create such things. But it's always struck me as a particularly odd thing to do. No one disputes the fact that designer molecules, like designer genes, can be created. So what? That's a bit like saying, given two purebred, licensed Great Danes, I can produce a litter of them. It doesn't say much at all about what can happen by chance, does it? To me, setting out to assemble a molecule of known design can be done, given enough ingenuity (which is considerable) on the part of the people who make the labs and their equipment, proves nothing at all about what happened In The Beginning. Since no enzymes were required, Hoyle and Wickramasinghe's calculations are bogus. Oh, Ok. Why didn't you say so in the first place? The real question is: What is the complexity of a simple molecule -- simple enough to form spontaneously, complex enough to be self-reproducing -- constructing itself through random chance? It's my understanding that a self-replicating RNA molecule has been produced using only a couple dozen nucleotides. I'd like to know more about that. Can you give me a citation? I don't think either your or I know enough to answer that question. I've been trying for years to get folks to tell me how many base pairs they think it takes to create a self-reproducing DNA molecule, but so far, no answer. Probably, it will be a long time before molecular biologists can really answer that question. I don't know of anyone who is suggesting that the first self-replicating molecule was DNA. RNA is far more likely, as RNA can also function as an enzyme. Assuming -- again for the sake of argument -- that H & W got this right also, and 2000 enzymes of 200 amino acids is what is needed, one could pose the question this way: Given all the possible combinations of 2000 enzymes of 200 amino acids each, how many sets of those combinations produce anything useful? Since the first self-replicating organism was most likely a simple RNA molecule, the question is pointless. Not true. RNA uses the same nucleotides as DNA. It only has a single helix, though. And, again, I don't think there's general agreement that it _WAS_ RNA. If however, you are asking how the first organism requiring 2000 enzymes could have been produced, it isn't that difficult once our self-replicating RNA molecule develops the ability to produce one enzyme. Once it can produce one enzyme, it isn't that difficult to produce a second, and then a third and a fourth until it hits 2000 enzymes. If at any point an enzyme is added that is not beneficial, it is removed from the population. So you see, life didn't have to produce 2000 working enzymes all at once. Instead, it produced n working enzymes + 1 more, with n = 0 to 1999. With each advance, it added one more working enzyme to a list of existing working enzymes. Of course. Just as it's possible to generate more Great Danes (or two-legged Danes), given an initial population of Danes. The question, though, is how that first molecule got assembled from its parts. I don't know, and I doubt you do either. Presumable it's more than one set. But how many more? Also presumably, not a large percentage of the set of total possibilities. In any case, whatever the number is, one has to presume that a scientist of the stature of Fred Hoyle knows how to compute permutations and combinations, and wasn't so dumb as to assume that only one combination would work. In short, they got the math right the first time, so all your arm-waving is moot. They may have gotten the math right, but it didn't represent a realistic scenario for the origin of life. Life didn't start by looking for a combination of 2000 enzymes that would work. Life started by looking for one enzyme that would work, and then adding to it a second, and then a third and a fourth. Adding one more to an existing combination isn't that difficult. Define "work." You are obviously free to discount Hoyle and Wickramasinghe's assumptions and their math. In fact, you are free to believe that the first life was assembled by the proverbial Pink Bunny Rabbit. However, if you assert -- as you just did -- that their mathematics is all wet, isn't it sort of incumbent upon you to provide an alternative? Extraordinary claims require extraordinary proof, right? However, you implicitly accepted the original number by seeking to modify the 1:10^10,000 number to something closer to 1:1. I was merely pointing out the flaws in your modifications. Jack |
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