Spectrum said:Congratulations! You just got added to the list.
I feel so accepted
Also read my post #241
Spectrum said:Congratulations! You just got added to the list.
Clarification: evolution by natural selection is a fact, but the theory that evolution by natural selection is the basis for the current diversity of species is a belief system extrapolated from that fact (and yes, I have degrees in zoology and physiology).Spectrum said:Free2B: I'm a Molecular Biologist by trade. I can assure you that: Evolution by natural selection is a fact. Within the mainstream scientific community, there is no debate.
Exactly. I have owned 4 Macs since 1988, and all 4 are still in use. So, 0% of the Macs I have ever purchased have been recycled (yet). Does that make me environmentally unfriendly? I guess Greenpeace hasn't heard that REUSE is one of the R's of environmental friendliness, one that is even more environmentally friendly than recycling...MacBram said:Yeah, Apple's problem is a bit like Land Rover's - 78% of the vehicles they have ever made are still on the road. (I know my old Apples are.) Dell, by contrast, performs very highly in product take back and recycling.![]()
Spectrum said:However hard to fathom, without a shadow of a doubt, everything we know of as today evolved from something of far more simple form, which at the time fitted perfectly within its environment, just as everything does now. What I think is difficult to appreciate is the immense time-scales that evolution has in order to achieve such apparently massive changes. If you were able to see evolution occur in real-time, or even within recent history, I'm sure it would make the process far easier to comprehend
Spectrum said:Greenpeace and other groups serve a great purpose in simply bringing these issues to the forefront. If these groups did not exist, do you think the world would be a better, worse, or just a less informed place? By the way: Are you afraid of global warming? Bear in mind what I just pointed out about the desperately slow speed of evolution...The dinosaurs didn't make it - and these were by far the single most successful animal group to ever grace the planet - they lived for millennia!. What says that we will...
Spectrum said:Why are you sure? Because you think they have morals? Responsibilities? Apple only cares about their shareholder's bottom line. They'll do the right thing if it's in the best interest of the company. That's why you, and I, and all of us have to put pressure on companies (and governments). They have no incentive to change otherwise.
Spectrum said:Not at all. But, buying for the sake of buying, or trashing goods that still do their job perfectly well, just to get a new model, is not a good environmental choice.
macidiot said:Well said, but to me, the way to address overpopulation is to increase overall education and wealth. Affluent, well-educated people do not have many children. To the contrary, they actually have a negative growth rate.
Oh, and get rid of the Catholic church. They love making babies with no regards to the consequences![]()
If disparaging comments were made about other faiths on this board, people would be outraged by the intolerance. I think it's time for this whole thread to be moved to the wasteland...macidiot said:Well said, but to me, the way to address overpopulation is to increase overall education and wealth. Affluent, well-educated people do not have many children. To the contrary, they actually have a negative growth rate.
Oh, and get rid of the Catholic church. They love making babies with no regards to the consequences![]()
That is correct, this is not my field. However, I am a published research scientist in a applied mathematical field, so I think I am capable of reading scientific material.digitalbiker said:You are just wrong. This is obviously not your field.
Does the geophysic community believe that the increased CO2 level is caused by something else that human activity? If so how do we account for the CO2 resulting from burning fossile fuel the past 150 years? Is it just a fluke incident we can see a significant kink in the CO2 level at the beginning of industrialization? Does geophysics as a dicipline ignore that?digitalbiker said:If you had read the journal "Geophysics" on a regular basis as I do, you would realize that most classical Geophysicists do believe we are in a global warming cycle but they do not believe that man is responsible.
Believe is the keyword here. The best predictor today in absence of a tested theoretical model is a Black Box model. I am surprised that there are models that does totally excludes human interactions. As I wrote in my previous post. You don't get published if you sing with the choir...and publish you must...digitalbiker said:Only the environmental scientists who focus on computer models make this claim. I never said that models aren't a viable means of scientific study. I only stated that classical geophysicists believe that the current environmental models being used by environmental scientists are way too simple and not accurate. Just because their models are inaccurate does not mean that all models used in all science are inaccurate.
digitalbiker said:The current simple models do not take into account many factors which environmental scientists have very little known data about.
digitalbiker said:For example, carbonate reef production takes place at highly variable rates. In a CO2 rich environment the ocean can absorb high amounts of CO2 and produce carbonate rich sediment. This is not a static process. When C02 levels are low and temperatures are cool carbonate production is slowed. When CO2 is high and temperatures are higher this processs is increased. The amount of CO2 absorption is staggering in classical studies. Most environmental models do not take this properly into consideration.
Also as you know the suns activity level is on an approximate 11 year cycle. However there may actually be a larger cycle that is not being properly accounted for. The data is still out on that one.
Also the Earths core has many processes which also effect temperature and magnetic field strength. In fact there have been many periods of temperature cycle fluctions that occur around the periods when the earths magnetic pole flip-flop. North pole becomes South and South becomes North. The exact cause for this is unknown.
Also there is no accurate measurement on how much CO2 is lost to space. NASA just recently examined a solar flare which ripped-off a huge chunk of ozone and other atmospheric gases. Until this recent observation we were not aware that losses of this magnitude to space were possible.
I might have been a bit careless about my choice of words, but I sincerly thought you would understand. I am fully aware that the variation of the earths temperaure isnt given by one symmetrical cycle but rather many, not yet explained, cycles interlaced with each other. Since we don't know exactly what causes these cycles, the best predictor, again, is to use a Black Box model.digitalbiker said:You are also using the term "normal temperature cycles" improperly. The earth is well within past norms for periods of temperature fluctuation. The earth has had much, much , higher concentrations of CO2 in the atmosphere in the past. All you have to do is examine the geologic record. The earth has also been much, much, hotter in the past.
The normal cycles you are referring to are the normal measured cycles within the last several hunderd years. In fact this is what most of the environmental scientists base their data on.
digitalbiker said:Classical geologists and geophysicists base their studies on the rock column which is billions of years old. If you studied the Earth's past you would learn that at one time the entire Earth had a methane atmosphere which would have been deadly to life as we know it. But fotunately for us it changed. It is constantly changing there is no normal.
Now you are talking about evolution. The biggest problem here is that the evolutionary process just doesnt work that fast. (for a classical reference see e.g Zuckerland & Pauling, J. Theoret. Biol. 1965) If the climate changes too fast, we will most likely see the extinction of more or less all life on earth. Life just doesnt handle fast climate changes very well.digitalbiker said:The onlw way to survive long term on this planet is to adapt because change is going to happen.
...and just how do you know that????? Do you know how the dynamic of the climate of earth works? Can you prove there doesn't exist states where from the earth e.g.. just gets warmer and warmer? If so, please give me the references to a/several articles in a peer reviewed scientific journal.digitalbiker said:The environment will never reach equilibrium long term, regardless of what man does.
There are many professors that has stoped publishing in peer reviewed journals since they just dont cut it anymore. When they stop thye normally publish their "findings" in normal newspapers. Unless you see references to peer reviewed journals I would be very careful to put too much weight on what is written, regardless if the professor is from MIT or not.Free2B said:I guess I used the word "prominent" because the guy is at MIT. Ok, just a tenured professor at a pretty good school known for its science.
This just why there are peer reviewed journals. Most non-scientists have no idea weather it is complete nonsense or not. That is why all publications are made in peer reviewed journals.Free2B said:Just because it's not in a peer reviewed journal you discredit that there is a difference of opinion? The evidence is apparent in the article--maybe you should go read it.
No serious scientist would stick his neck out and claim they know exacly what is causes global temperature changes. It is most likely a very very complex process. However, it is known that CO2 is a potent green house gas. It is also known that humans for the past 150 has burned staggering amount of fossile fuel and thus causing the earth to become warmer. It is also known that these processes have a very long lagg. That is, the time from CO2 is released in the atmosphere and when we see the effects of it is long, decades even. We also know that life is very sensitive to temperature changes. For example, just a couple of degrees warmer water will kill of the coral reefs.Free2B said:Meteorologists can barely predict the weather on a day to day basis. Who, therefore, can truly say what is causing global climate change? (My point, not the "guy at MIT"). I'm not saying there isn't any global warming and that humans aren't causing some change. I just don't think we should say the sky is falling and the world is going to come to an end unless we all move back to the caves.
Spectrum said:I have to say, I am APPALLED by the irresponsible attitude of some people on this forum (and probably the world). Businesses, corporations, governments, AND individuals should all be behaving in a socially and environmentally responsible manner. This is in no way "anti-progress". When did you all gain the right to be so selfish, self-centred, and bigoted in your beliefs?
Edit: Added some more bigoted quotes.
Edit: Added a couple more gems.
Edit: One more.
So you think it is more likely that the universe with its almost infinite degree of complexity was more likely to have been "created" ? Do you have any idea just how complex any single protein, that performs any one process within a single organelle of a single cell of a single organism, is?Free2B said:But the diversity in the world seems far too great to have happened over even 5 billion years. There have been mathematical models that have proven it next to impossible for the world to have achieved such scale of life. So, we are to look at finch beaks, as Darwin and others have done, or fossils that inherently have holes in between the big changes in species as our evidence? Or that bacteria can "evolve" are immune to certain anti-biotics? Seems like wild theory if I've ever heard one. It actually insults my intelligence to think of such a crazy story. Can you truly observe evolution? I mean, on a level that is relevant? A species that suddenly becomes more complex over generations? If there is one, tell me, maybe you'll change my mind. If you can't observe it, then it will always be a theory, not a fact. And debate on it should happen.
Gasu E. said:When did you get put in charge of "the list?" And when did you gain the right to make sweeping moral judgements, as reflected in your tactical mis-use of the word "bigoted"?
I am pro-environment and pro-corporate responsibility; nevertheless I find your "list" to be extremely "ethically challenged" in and of itself. I believe in changing the world through realistic incentives, rather than name-calling and "list"-making.
Dr.Gargoyle said:...and just how do you know that????? Do you know how the dynamic of the climate of earth works? Can you prove there doesn't exist states where from the earth e.g.. just gets warmer and warmer? If so, please give me the references to a/several articles in a peer reviewed scientific journal.
Free2B said:Where do you get all this garbage about overpopulation??? We pay our farmers in this country to not produce so much food! I live in a tiny apartment in a large city, and I have plenty of room. Meanwhile there is land all over the place. You liberals keep believing this crap. This is one educated person (two master's degrees) that's going to have lots of kids. As everyone in my family has as well.
Free2B said:Even so, I'm not sure exactly what you mean about the book being rubbish.
I thought the book made some very valid points regarding the intelligent design theory, which has nevertheless survived until today.
And there is still a debate which is ongoing.
As for evolution, I can believe a finch's beak can change size based on environmental/food supply changes. But to believe that my legs were one time fins....billions of years ago, of course (no debate on age of the earth). I just can't get there.
But the diversity in the world seems far too great to have happened over even 5 billion years. There have been mathematical models that have proven it next to impossible for the world to have achieved such scale of life.
So, we are to look at finch beaks, as Darwin and others have done, or fossils that inherently have holes in between the big changes in species as our evidence?
Or that bacteria can "evolve" are immune to certain anti-biotics? Seems like wild theory if I've ever heard one. It actually insults my intelligence to think of such a crazy story.
Can you truly observe evolution?
I mean, on a level that is relevant?
A species that suddenly becomes more complex over generations?
If there is one, tell me, maybe you'll change my mind.
If you can't observe it, then it will always be a theory, not a fact. And debate on it should happen.
MacinDoc said:If disparaging comments were made about other faiths on this board, people would be outraged by the intolerance. I think it's time for this whole thread to be moved to the wasteland...
Free2B said:Yeah, great idea! And why don't we tell Muslims to have lots of kids because they like to blow themselves up and kill innocent people! That way we can control the world's population!![]()
Really! Where do you get all this garbage about overpopulation??? We pay our farmers in this country to not produce so much food! I live in a tiny apartment in a large city, and I have plenty of room. Meanwhile there is land all over the place. You liberals keep believing this crap. This is one educated person (two master's degrees) that's going to have lots of kids. As everyone in my family has as well.
To say that the world should rid itself of an identifiable group is hardly an enlightened truth.macidiot said:I'd hardly call the truth a disparaging comment.
Neither is it scientifically testable that the incredible complexity and diversity present in the universe today occurred as a matter of random chance. Being able to observe adaptations and speciation does not prove that life arose spontaneously or that the current diversity was a result of it.bryanc said:Darwin's Black Box makes two points. The first is that some biochemical processes appear to be inaccessible to Darwinian mechanisms. And the second is that such 'irreducibly complex systems' imply the action of some supernatural creator.
The first point is simply, and demonstrably false for all systems we have so far investigated (it remains possible that some day a system that could not have evolved by natural selection may be found, but none that have been found present any such problem). The second point is simply not a scientifically testable hypothesis. If you want to believe that, that's your business, but it has no scientific support.Cheers
I don't understand this argument. It's like arguing that a blind man trying to walk from New York City to Los Angeles is more likely to get there by relying on chance alone than if he is using a GPS. God's omniscience is an important part of Christian belief.Spectrum said:So you think it is more likely that the universe with its almost infinite degree of complexity was more likely to have been "created" ? Do you have any idea just how complex any single protein, that performs any one process within a single organelle of a single cell of a single organism, is?
It is incomprehensible that all of this could have come about from anything other than massively parallel random changes in response to environmental pressure.
But aside from this, proteins are made up of atoms, which themselves are made up of a number of subatomic particles with varying physical attributes. Did the "supreme creator" work all this out too? Did he say: "Well, I want to crate man, so first things first: I'll design a quark."
The question is, has there been enough time since the origin of the universe for this amazing combination of random chances to have occurred, considering that the vast majority of mutations are harmful or deleterious.Spectrum said:All we are, is the result of a fantastic set of random chances, which given enough time can, and will, produce anything.
You missed my point: It is about individual responsibility. You come to the sensible course of action based on impartial information, scientific reasoning, and social responsibility.mpstrex said:Wow, Spectrum, you are truly a socialist, congrats. I'll try and find a red star for you. You truly think people having too many kids is a bad thing. Whew! Do you believe in laws to control how many kids should be allowed, who is allowed to do so, etc.? Wow, maybe we'll have a great government that can control our lives like that.
MacinDoc said:I don't understand this argument. It's like arguing that a blind man trying to walk from New York City to Los Angeles is more likely to get there by relying on chance alone than if he is using a GPS.
Yes. But only in conjunction with selection. The time-scale is enormous in relation to the number of generations since the ancestral organisms - modern bacteria can reproduce every 20-30 minutes. Let's be conservative and give them a week (during the very beginnings of life, generation time was likely much slower than it is now. And it slows down again in the subset of organisms that gain complexity).MacinDoc said:The question is, has there been enough time since the origin of the universe for this amazing combination of random chances to have occurred,
By what yardstick? How on earth can you judge that? Everything as it is now, did originate by mutation, but once it becomes "the norm" it no longer looks like a mutation. Being a genetic mutant is only a relative term.MacinDoc said:considering that the vast majority of mutations are harmful or deleterious.
Gasu E. said:When did you get put in charge of "the list?" And when did you gain the right to make sweeping moral judgements, as reflected in your tactical mis-use of the word "bigoted"?
I am pro-environment and pro-corporate responsibility; nevertheless I find your "list" to be extremely "ethically challenged" in and of itself. I believe in changing the world through realistic incentives, rather than name-calling and "list"-making.
I agree with gargoyle. Even thought it is long, i read it. and BTW, whoever said the man isnt at all responsible for global warming...well just read gargoyle's post. (he burned you digital biker)Dr.Gargoyle said:That is correct, this is not my field. However, I am a published research scientist in a applied mathematical field, so I think I am capable of reading scientific material.
Does the geophysic community believe that the increased CO2 level is caused by something else that human activity? If so how do we account for the CO2 resulting from burning fossile fuel the past 150 years? Is it just a fluke incident we can see a significant kink in the CO2 level at the beginning of industrialization? Does geophysics as a dicipline ignore that?
If not, are there any theoretical testable models in geophysics that have verified that increased CO2 level caused by humans are negligible? If so please give me a reference to an established peer reviewed scientific journal and I will read it. if not, do not claim that geophysicist regard human interference as insigificant in modeling earths temperature.
Moreover, among theorists it has long been known that black box models (neural networks) are a much better predictor than actually trying to evaluate a theoretical model when we have encounter very complex dynamical systems. This is done daily in many scientific disciplines, e.g. particlephysics and meterology to name a few. These models are solely use to make predictions. They dont explain anything about what is going on as a theoretcal model would do. Nevertheless, Black Box models are often used at the cutting edge of science when theoretical models just don't give sufficiently accurate results.
it is just these Black Box models that are being used today to predict the temperature of the earth. I am fully aware of other models, but as long as they haven't been tested they can't be used to make any decisions.
Believe is the keyword here. The best predictor today in absence of a tested theoretical model is a Black Box model. I am surprised that there are models that does totally excludes human interactions. As I wrote in my previous post. You don't get published if you sing with the choir...and publish you must...
of course not... that is how a Black Box model works.
Again the theoretical models are just not there yet... Hence, we are stuck with Black Box models as the best predictor.
I might have been a bit careless about my choice of words, but I sincerly thought you would understand. I am fully aware that the variation of the earths temperaure isnt given by one symmetrical cycle but rather many, not yet explained, cycles interlaced with each other. Since we don't know exactly what causes these cycles, the best predictor, again, is to use a Black Box model.
Ice age in the last hundred years, where did I say that???
You are aware of that most "simplified studies" are from measuring CO2 leves in ice cores? These give you the CO2 level slightly longer timespan than a couple of hundred years back. If you take this data set and run it, you will see there is significant kink that cant be explained as a natural phenomon.
Humans, or mamals for that matter, has only inhabbited earth for a very very short time from a geological perspective. The conditions on earth before mamals entered the scene is hardly relevant here unless you plan on morphing to something else.
Now you are talking about evolution. The biggest problem here is that the evolutionary process just doesnt work that fast. (for a classical reference see e.g Zuckerland & Pauling, J. Theoret. Biol. 1965) If the climate changes too fast, we will most likely see the extinction of more or less all life on earth. Life just doesnt handle fast climate changes very well.
...and just how do you know that????? Do you know how the dynamic of the climate of earth works? Can you prove there doesn't exist states where from the earth e.g.. just gets warmer and warmer? If so, please give me the references to a/several articles in a peer reviewed scientific journal.
But please, if you want to continue this discussion send me a PM, since we are way off topic now.