stevevw
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- Nov 4, 2013
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Gracchus
https://www.youtube.com/watch?v=pJ-4umGkgos
[/quote]You write of big changes. What is the qualitative difference between one big change and lots of smaller incremental changes? In fact, the smaller incremental changes over extended periods of time is what we observe in the evolutionary process. Rhodopsin and cholorphyll change their physical conformation when they intercept a photon. This causes the chemistry of the cell to change. This can cause new reactions or even change the chemistry of neighboring cells. Such changes are the basis of both sight and photosynthesis. An organism with such chemicals can react to light. If the cells containing such reactants become localized, because some cells lose that photosensitive chemical, the organism may now have the benefits of phototropic responses that will enable sensitivity to the direction of the light. This is seen in some flatworms. If the sensitive areas of cells buckle inward or outward the ability of the organism to sense the direction of the light is improved. As the buckling grows greater the ability to form images is generated. It is small steps, small improvements, that we find in various organisms where it has stopped without making the next step, that give us understanding and justification for the evolutionary development of complex structures.[/quote]
Yeah I dont really understand how an eye can be made and I dont really think many people can honestly explain step by step how an eye can be made gradually. You can explain some aspects of it but I would think there is 100s of things that need to happen. I understand that evolution states that it is a gradual process and so therefore you start with something very simple. But if you stand back and look at it and say once there was no eye and then there was this complex eye or living cell or person you would have to say that new information had to be added to get there. New abilities and new genes had to be added to make those things. Remembering that all this is coming from is basically damage to the copying process of genes. So if you stand back you then have to say that there needed to be 1000s if not 100s of 1000s of positive mutations to gain all that. When you consider that positive mutations are rare you begin to wonder.
So how and why did a whale or bat get sonar ability. How would they get that gradually.
I am not sure. I am researching this at the moment. One of the things I am reading talks about our Genomes being a complex super computer full of info already. So complex that all the brains in the world cant work it out. There are multi levels of messages stored and different dimensions of information that scientists are still discovering. What they thought was junk DNA is turning out more and more to be useful. But all this information was already there and its actually deteriorating not getting better. We are accumulating about 100 million mutations each in our life time and passing a certain amount onto our offspring's. They in turn accumulate another 100 million on top so we are slowly deteriorating. But a single mutation is so small and insignificant that it cannot be recognized on its own and doesnt give any stand out benefit or negative effect itself. But overall mutations are not giving positive things to our genomes. Its more like entropy that we are slowly deteriorating.If a genome has more than one copy of a gene and one copy is changed or deleted, would you consider that new information? If one copy is changed, it may code for a new protein. If it is deleted this may cause a missing protein that will change the chemistry of the cell, interrupting some reactions and perhaps causing others. Would you consider that new information?
https://www.youtube.com/watch?v=pJ-4umGkgos
[/quote]You write of big changes. What is the qualitative difference between one big change and lots of smaller incremental changes? In fact, the smaller incremental changes over extended periods of time is what we observe in the evolutionary process. Rhodopsin and cholorphyll change their physical conformation when they intercept a photon. This causes the chemistry of the cell to change. This can cause new reactions or even change the chemistry of neighboring cells. Such changes are the basis of both sight and photosynthesis. An organism with such chemicals can react to light. If the cells containing such reactants become localized, because some cells lose that photosensitive chemical, the organism may now have the benefits of phototropic responses that will enable sensitivity to the direction of the light. This is seen in some flatworms. If the sensitive areas of cells buckle inward or outward the ability of the organism to sense the direction of the light is improved. As the buckling grows greater the ability to form images is generated. It is small steps, small improvements, that we find in various organisms where it has stopped without making the next step, that give us understanding and justification for the evolutionary development of complex structures.[/quote]
Yeah I dont really understand how an eye can be made and I dont really think many people can honestly explain step by step how an eye can be made gradually. You can explain some aspects of it but I would think there is 100s of things that need to happen. I understand that evolution states that it is a gradual process and so therefore you start with something very simple. But if you stand back and look at it and say once there was no eye and then there was this complex eye or living cell or person you would have to say that new information had to be added to get there. New abilities and new genes had to be added to make those things. Remembering that all this is coming from is basically damage to the copying process of genes. So if you stand back you then have to say that there needed to be 1000s if not 100s of 1000s of positive mutations to gain all that. When you consider that positive mutations are rare you begin to wonder.
Originally Posted by stevevwBut when a creature say needs to get a sonar ability that has to come from something that doesnt exist.When a creature that has no sonar ability needs sonar ability it dies. The ability doesn't have to come from something. Evolution doesn't magically discover what you need and give it to you. It is not a fairy godmother. If you need it and have it, you survive and have a chance to reproduce. If you need it and don't have it you die and don't reproduce.
Originally Posted by stevevw
So how and why did a whale or bat get sonar ability. How would they get that gradually.
I think most people agree with the basic idea of evolution. But its how far you take it.
No they dont, they dont observe evolution in the ways they have explained it. They can observe micro evolution in a lab like with bacteria or with fruit flies. But they have never observed any creature turn from say a bacteria to a fish or worm like they say happens. That is a hypothesis based on micro evolution which is changes that happen with existing genetics not new info that is needed to make new creatures. A bacteria hasn't got the gene information to make itself into a fish in the first place. The cambrian explosion caused many complex creatures to appear with all the basic body parts for all living creatures. There is no evidence of any gradual stages in the fossil records tracing back to bacteria.Biologists don't take it anywhere. They merely observe how far it takes them.
I dont mind someone explaining things to me. But I also dont always assume they are correct. I have been around long enough to know that even qualified people can be wrong. I try and get a varied view of things and look at both sides of the story. But when someone starts to get personal that I see no need for this. It goes beyond just a debate.Originally Posted by stevevwNo wonder people give up debating with people like you. You shouldn't assume everyone is the same as you. People are different and have different understanding and knowledge levels. You may have a certain level of knowledge but you cant assume everyone should know the same as you. And if they dont you shouldn't then put them down for it like they should know what you know.I do not assume that you are the same as I. If you have less knowledge than your teacher, (And believe it or not, I am trying to teach you something!) you should consider what your teacher is trying to tell you before you dismiss it as unpleasant or just because it conflicts with your own opinion.
Of course and I have said I am not very knowledgeable about these things. I have a good basic knowledge and am learning all the time. But I can research others and get other expert opinion as well. So even though I may not have that degree level of understanding I can turn to those who do. The thing is I believe despite all the knowledge involved evolution can still have a degree of opinion and belief on both sides of the debate. I know that some evolutionists that dont have my level of knowledge but believe in evolution and dont really know why. But they just believe that and thats because its their belief and they dont believe in God. So there is a certain amount of an underlying influence happening. Even the experts can have a bias and consensus about things because thats what they want and anything different will upset the apple cart.I have been studying biology on and off for nearly sixty years, since when I first read an article by the biochemist and writer, Isaac Asimov, titled The Sea Urchin and We. (I was ten, or thereabouts.) In this article he presented biochemical evidence that chordates (ancestral to vertebrates) are more recently related to echinoderms, (star-fish and sea urchins,) than to annelids (segmented worms). I have taken a few courses in biology since then, several at the college level, and read a great many books and articles. So maybe, just maybe, others know a bit more about the subject than you do, and maybe you ought not disregard what more learned people have to say.
Fair enough but I just think its unnecessary. Especially like I said that I have read other so called experts say something different. Then you begin to wonder who is right here. If two experts can say different things about the same topic which happens a lot in this area then why say someone is stupid and someone isn't. They maybe both right to a degree. Or one maybe wrong not through stupidity but through a misunderstanding of information. I think calling someone names is a bit extreme and not needed.Now you go on to say, that everyone has a right to an opinion. I'll go further: Everyone even has a right to voice an opinion, at least in some situations and environments. But if someone disagrees with your opinion they also have a right to challenge it. If it is patently ridiculous they have the right to ridicule. That reaction might be rude, but it also might be justified. If your error is based on ignorance they may try to inform you. If you cannot accept the new information, if you reject it, for no reason you can defend, then they may dismiss you as stupid, insane, or perverse. Of course all those qualities are relative. And there is nothing wrong with being stupid. We all have intellectual limits. I'm still trying to get my head around general relativity. I know that you are not, by far, the most stupid person I have ever dealt with. You should be able to understand the subject. If you would only listen and consider!
Fair enough but most of what I say doesn't just come from me in this subject. It is what I have researched and comes from other experts as well. If I misunderstand it then thats my bad and I will have to get a better understanding. But I believe its not to far off the right track as I have studied it. If you look at the evolution debate like on this site there are good qualified experts who will disagree with what you say. Are they stupid for having a different view. Sometimes it comes down to a point of view and the interpretation of the evidence. But a case can be made for both sides sometimes. Sometimes there are assumptions and things are not based on facts as much as people think. An evolutionists can have a faith in their views as well you know.To debate those who have studied and understood a subject that you have not studied so deeply or understood so well, to dismiss argument or evidence because it does not fit into your world view is likely to give the impression of perversity. Most people find perceived perversity annoying. Perhaps you might not even recognize your own perversity. Maybe it has never been called to your attention. We often overlook our own faults, so busy we are focusing on the faults of others.
Well I use to be an evolutionists. So I guess I'm unlearning some of the things I thought were correct back then. I think there is a middle ground where both sides can be stated. But its not good to be extreme either way and to be open to learn which I agree with.Sometimes, when you want to learn, you have to unlearn previous erroneous education. Sometimes the truth is very unpleasant, but it is still more useful to know the truth than to believe untruth, or be totally ignorant.
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