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Let's revert back 200 years...
originally posted by: amazing
And one step further...
If not the theory of Evolution, then what is the competing theory.
If evolution is the best we have...even with holes or questions, then we have to go with it unless there is a better theory.
No creationist will ever tell you the competing theory. Ever.
originally posted by: Prezbo369
originally posted by: chr0naut
To my way of thinking, we have not sufficiently removed the 'hand of God' from it.
The ball of ignorance in which it resides grows smaller by the day....
originally posted by: bigfatfurrytexan
a reply to: Barcs
Why is it so difficult to understand that evolution is a response, not a force?
Evolution isn't a force that requires species to change. Species change in response to environment. Epigenetic markers are responsible for short term change (one generation to the next....like response to overpopulation, for example). Genetic markers, the actual genes, are responsible for long term changes, the things that actually define a species.
Evolution can stop in any species, so long as the environment it is in does not induce change. And then some environmental pressures can create dramatic changes. The dinosaur that first gained winged flight....opened up a whole new world of possibilities for genetic expression. The first animal that could survive on land...created an explosion of genetic diversity for the same reason.
To sum it up: evolution is not a force. It is a response. That is why the thesis of the OP is flawed.
originally posted by: Barcs
a reply to: jabrsa
Borntowatch did not address the topic of this thread, he just flat out denied it. In the OP I asked a specific question. He did not answer it, and neither did you. That's a simple fact, it's not me being intolerant. If you'd like to discuss other aspects of evolution, creationism, or quantum theory, there are plenty of other threads that are more general. This is a specific thread about genetic mutations and speciation.
originally posted by: SoulReaper
I would have to concur with jabrsa, you ask a believer in the Evolutionary theory to provide evidence and they get hyper intolerant and insulting. It would be amusing if it wasn't so common and widespread
I'll go with my car analogy again that I used in a different thread. It doesn't get simpler than this.
originally posted by: Barcs
I am looking for a well reasoned, evidence based answer to the following question:
Based on scientific experiments, evolution (speciation) can be observed in multiple species over dozens to hundreds of generations. Why does this process not continue for thousands to millions of generations, where the changes add up enough to be classified as a different species, genus or family? Why do the changes stop adding up past a certain point?
This basic point needs to be addressed. Every time I bring it up, it gets dodged and the subject gets changed.
You believe that because speciation has been observed that this means that changes add up to bigger changes, what is wrong if someone asks you to elaborate?
originally posted by: vasaga
I'll go with my car analogy again that I used in a different thread. It doesn't get simpler than this.
originally posted by: Barcs
I am looking for a well reasoned, evidence based answer to the following question:
Based on scientific experiments, evolution (speciation) can be observed in multiple species over dozens to hundreds of generations. Why does this process not continue for thousands to millions of generations, where the changes add up enough to be classified as a different species, genus or family? Why do the changes stop adding up past a certain point?
This basic point needs to be addressed. Every time I bring it up, it gets dodged and the subject gets changed.
If a car can accelerate to 60 mph within 3 seconds, why can't it keep accelerating until it reaches the speed of light? Why does the acceleration stop past a certain point?
originally posted by: vasaga
I'll go with my car analogy again that I used in a different thread. It doesn't get simpler than this.
originally posted by: Barcs
I am looking for a well reasoned, evidence based answer to the following question:
Based on scientific experiments, evolution (speciation) can be observed in multiple species over dozens to hundreds of generations. Why does this process not continue for thousands to millions of generations, where the changes add up enough to be classified as a different species, genus or family? Why do the changes stop adding up past a certain point?
This basic point needs to be addressed. Every time I bring it up, it gets dodged and the subject gets changed.
If a car can accelerate to 60 mph within 3 seconds, why can't it keep accelerating until it reaches the speed of light? Why does the acceleration stop past a certain point?
originally posted by: Barcs
You believe that because speciation has been observed that this means that changes add up to bigger changes, what is wrong if someone asks you to elaborate?
There is nothing to elaborate on. I am asking why the changes would NOT add up. That is the question at hand. What would cause them to stop? Has this ever been observed? I'm asking for the deniers to elaborate on this but all they can do is dodge the question and change the subject. This is why I issued the challenge. If you can't explain it, then that's the way it is. I'm looking for somebody that
can.
originally posted by: Barcs
originally posted by: vasaga
I'll go with my car analogy again that I used in a different thread. It doesn't get simpler than this.
originally posted by: Barcs
I am looking for a well reasoned, evidence based answer to the following question:
Based on scientific experiments, evolution (speciation) can be observed in multiple species over dozens to hundreds of generations. Why does this process not continue for thousands to millions of generations, where the changes add up enough to be classified as a different species, genus or family? Why do the changes stop adding up past a certain point?
This basic point needs to be addressed. Every time I bring it up, it gets dodged and the subject gets changed.
If a car can accelerate to 60 mph within 3 seconds, why can't it keep accelerating until it reaches the speed of light? Why does the acceleration stop past a certain point?
It's about accumulation, not acceleration, which makes your entire analogy is invalid . The mutations are observable. If you deny this, then link me your study that shows a genome comparison where no mutations happened from parent to off spring.
Or maybe answer the question in the OP instead of dodging it with invalid analogies. Thanks.
originally posted by: Barcs
originally posted by: chr0naut
As I have posted previously, in every case I have looked at, where genetic change has been observed, the rate of change observed exceeds those expected from known mutation rates (they changed faster than expected). Either there is something else going on or many are falsifying data.
I won't link to each case or to databases of mutation rates or even to the equations for calculating expected change. I have done that before, its a lot of work and people tend to just shrug it off.
If my statement motivates you sufficiently, go and find out for yourself.
I'm trying to understand what you are describing here. Remember, the mutation rate and the rate of evolutionary change are not the same thing. Extinction level events are sudden, so when something drastic happens, like an asteroid or comet hitting the earth, a large portion of organisms die out, and the ones that had accumulated the best mutations over time for that circumstance become the survivors and pioneers for the new world. This would seem like a sudden change, however the mutations had already been happening for millions of years, they just were not dominant until NS wipes out the others.
That's why I said that natural selection was a bigger factor in the rate of change. Mutations can happen until the cows come home, but if the environment doesn't change, the creatures won't aside from genetic drift.
Speaking of that, I think we are slightly drifting away from the question I posed in the original post, which is why the mutations stop adding up after a certain point (according to deniers).
Known mutation rates are based upon individual genetic changes in DNA under controlled conditions and are a chemical or molecular assay.
Changes observed by evolutionists are in terms of whole cells at the bottom end of the spectrum and entire colonies at the top.
As you surmise, the numbers should be the same, verifying that our theories as to process are correct.
Can you give me some examples of the species you are talking about? The mutation rates do vary from species to species, but you seem to be also saying "rate of change." Which one are you referring to? They are both different. I am really referring to speciation events in populations here, not individuals. If hundreds to thousands of mutations can add up to such an event, why would they stop afterwards, or not add up any further to increase the diversity from the original? That's the heart of the matter, here.
originally posted by: Barcs
I'm going to say this one final time. The question in the OP, is specific and clearly defined. It is for the folks that say they believe in micro evolution but not macro evolution. If you deny micro evolution and genetic mutations, you are in the wrong place. If you wish to discuss the emergence of complex organs and other aspects of evolution, then please create a thread or use one of the existing threads. Many of them are much more general. This thread is specific and refers to genetic mutations, speciation and the accumulation of changes over time. I issued this challenge because every time it is brought up in a thread, the deniers dodge it, ignore it, or change the subject. Thus far that is precisely what has happened. Don't get me wrong, there have been a few thought provoking responses, they just haven't really addressed the topic. The parameters for the question were clearly defined, and people still will not answer the question. It seems like Chr0naut is the only one attempting to answer it.
That's nonsense. It's an analogy for a reason. If you can get to X amount of miles in Y amount of time, it's the equivalent of getting X amount of mutations in Y amount of time. You can argue that if Y increases enough, you can reach a certain target. That is valid for both cases. If you don't think the analogy is valid, I have no choice but to conclude that you don't actually have reasoning skills.
originally posted by: Barcs
It's about accumulation, not acceleration, which makes your entire analogy is invalid .
So is the car's acceleration.
originally posted by: Barcs
The mutations are observable.
I'm not denying anything. You're refusing to acknowledge a problem because it doesn't suit your agenda.
originally posted by: Barcs
If you deny this,
The question was answered. That you're too pigheaded to see it is not my problem.
originally posted by: Barcs
Or maybe answer the question in the OP instead of dodging it with invalid analogies. Thanks.
originally posted by: Barcs
originally posted by: chr0naut
a reply to: Astyanax
The reason I am saying that the mechanism/s described in modern evolutionary theory don't work is that the numbers don't add up. The equations don't balance. There is something we are missing.
May I please request a reference to these equations?
This means that the speciating step can be down to a single mutation. I doesn't have to happen as a stack of gradual changes as this is the less likely path.
It starts with a single mutation, but it's never just 1 mutation, and it's never in 1 single individual. Speciation is generally a combination of numerous mutations. Many remain neutral until combined with others. Speciation boils down to a noticeable trait becoming dominant.
at some stage the accumulated changes still reach a 'tipping point' and that individual with that final mutation cannot breed with any of its 'peers'.
When a species "tips the balance" it is in reference to breeding with the original species, not the other individuals in the same group. You don't suddenly have one animal that can no longer reproduce with everyone else around him because there isn't as much difference between him and the others. If that were to happen, the individual would die. The difference is between him and his ancestors from thousands of generations ago. You seem to be confusing mutations in individuals with speciation events that affect entire populations.