nonbeliever_92
Well-Known Member
Evolution is a fact. The Theory of Evolution is the theory about how evolution goes about happening and is not a fact.
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To be perfectly blunt, if you dont even know what the word theory means in a scientific concept then you probably need to learn a bit more about science. Does that help?
I do not believe this to be the case, and I present the following comment from yourself as evidence:I know what the word theory means in both the lay and scientific context.
When you make comments like this you are demonstrating that you do not understand the word theory in its scientific context.In rl I have had arguments with people who think because I purport that evolution has not yet been proven conclusively I must not believe it is true.
And as I pointed out to you, only people who know little about either atheism or evolution think they have anything to do with one another.Once again we are dragged into an argument about the validity of evolution, the concepts of law and theory and hypothesis when my question is, when did belief in evolution becoming the main tenant of atheism?
It's funny that when Darwin published On the Origin of Species it sparked some controversy but nothing like what we see currently. In fact, despite the stories of Huxley and the spirited debates, the public and religious community, though certainly divided, did not emphasize the schism between religion and science as sharply as it is today. It took the Scopes trial in the U.S. to really draw the battle lines.Once again we are dragged into an argument about the validity of evolution, the concepts of law and theory and hypothesis when my question is, when did belief in evolution becoming the main tenant of atheism?
Then tell me what you think evolution really is. And no, you don't sound condescending, or at least not nearly as condescending as many other atheists I've met.I know this can only sound incredibly condescending and I truly don't mean to be, but your current knowledge of evolution is just plain wrong. There's some solid threads here at RF on the subject, some great books for intros to evolutionary biology, and I'd also suggest sites like TalkOrigins that have tons of great essays written by those who actually work in the field.
Back to "when did belief in evolution becoming the main tenant of atheism?"...
It's funny that when Darwin published On the Origin of Species it sparked some controversy but nothing like what we see currently. In fact, despite the stories of Huxley and the spirited debates, the public and religious community, though certainly divided, did not emphasize the schism between religion and science as sharply as it is today. It took the Scopes trial in the U.S. to really draw the battle lines.
The Scopes trial, and especially Bryans death, fanned the flames (if not actually sparking) the science vs. religion mentality. After Scopes lost the trial, anti-evolution legislature across the states lit up like a spleef at a Cypress Hill concert and less than two years later thirteen states had proposed anti-evolution laws. Granted, mmost of those laws were shot down, but there was no turning back after that and we can trace the modern fundamentalist anti-science movement to 1925.
I do not believe this to be the case, and I present the following comment from yourself as evidence:
When you make comments like this you are demonstrating that you do not understand the word ‘theory’ in its scientific context.
And as I pointed out to you, only people who know little about either atheism or evolution think they have anything to do with one another.
I have never met a christian who does not believe in evolution.
Those that don't believe in it must all have grown fins and swum across the pond to the USA.
.......when my question is, when did belief in evolution becoming the main tenant of atheism?
Evolution, at its bare bones definition is a change of alleles over time. Cumulative changes result in phenotypic differences (changes in traits) in populations. Natural selection "selects" those hereditable traits that statistically favor the population's ability to reproduce. 4.5 billion years is plenty of time for the variations of life to have appeared on Earth.Then tell me what you think evolution really is.
I hope so! Giraffids were around in Africa about 50 million years ago! I'm not even half that old.Here's what I know about evolution:
I'll use my typical giraffe example: A long, long, time ago, probably before you were born (or before your great grandparents were born for that matter)
Not bad. I was afraid some kind of Lamarkianism was gonna creep into your example but I was pleasantly surprised. I like the explanation of the length of the giraffes necks being due to sexual selection (though the evidence tends to leans towards grazing habits), though the end result is the same: a mutation favored the reproductive success of a longer neck and this was passed on through millions of generations of successively longer necks. And more specifically, it was the Climacocerus, the predecessor to the giraffe, that led to the longer neck.giraffes probably once had short necks. However, one day, a "mutation" appeared in the genes of a baby giraffe that caused him to have a slightly longer neck. Because this giraffe had a slightly longer neck, he was able to reach up a bit higher into the trees to find food, and thus he got all the best meals. He lived to reproduce and pass on his longer neck. After a few generations of giraffes, the mutation appeared again, making the neck of one giraffe in particular even longer. The process repeated itself, and after a while, giraffes had very long necks indeed.
There's been plenty of time actually. And mutations are extremely common. In fact, mutations are guaranteed to occur when cells divide, though neutral mutations are most common.This makes perfect sense and does not contradict the creation story at all. However, some people believe that everything has a "common ancestor," that is, a single cell prokaryote that evolved into every living thing as we know it today. The problem with that? Earth has a time limit. Sure, earth could be a few billion years old, but the sun would have a few billion years on it too... and the sun doesn't remain the same throughout all eternity, it changes size. Seeing that mutations are sorta uncommon
As I mentioned above, mutations are commonplace. And evolution can occur much quicker (geologically speaking) than many think. It's all about the power of incremental change over deep time. 4.5 billion years of geological time.it just strikes me as nigh-impossible that enough could have been accumulated to go from prokaryote to complex multicellular organism with completely specialized cells by the time the sun became a red giant and engulfed earth (and even if it didn't engulf earth, the temperature changes might end up killing off all the life, making the poor prokaryote have to start all over again from randomly thrown together chemicals D=). There's craploads of steps in between. You'd probably have to have a new mutation for every year at least to get that sort of change.
I understand that, but I still don't think it could happen so quickly. Not to mention that assuming a no-creator stance, the chemicals that made up the first prokaryote would have to be randomly thrown together. If I remember correctly, it takes something like 500 DNA molecules put in EXACTLY the right combination to make a tiny little single celled organism. Depending on how often these chemicals were thrown together, it may have taken a while. Then there's the occassional climate change. Poor single celled prokaryotes, it must have been incredibly frustrating... they had finally gotten the mutation for eukaryotic life (eukaryote = has a nucleus, prokaryote = no nucleus)... and then the asteroid (or whatever it was) that created the moon crashed into the earth and killed them all. That was a sad day, it's a surprise that it didn't make it as a national holiday D=.Evolution, at its bare bones definition is a change of alleles over time. Cumulative changes result in phenotypic differences (changes in traits) in populations. Natural selection "selects" those hereditable traits that statistically favor the population's ability to reproduce. 4.5 billion years is plenty of time for the variations of life to have appeared on Earth.
50 million? I figured that something so simple as a neck lengthening could happen in a few hundred years. Guess my estimates are a bit off XD.I hope so! Giraffids were around in Africa about 50 million years ago! I'm not even half that old.
Lamkarkianism? You mean like how the ancestors of birds flapped their arms and jumped off cliffs until they were finally able to fly? I thought that theory was discredited?Not bad. I was afraid some kind of Lamarkianism was gonna creep into your example but I was pleasantly surprised.
EVERYTHING is about sexual selection. If a trait isn't considered to be "sexy," those with that trait won't get mates, and therefore won't pass the gene, no matter how beneficial it is. Why do you think humans are so stupid? Stupidity is sexually attractive to most, thus it lives on .the giraffes necks being due to sexual selection (though the evidence tends to leans towards grazing habits),
Biology class taught me that mutations were very rare . I liked my biology teacher too... are all the biology classes in Missouri crap?There's been plenty of time actually. And mutations are extremely common. In fact, mutations are guaranteed to occur when cells divide, though neutral mutations are most common.
There's nothing random about it; the very nature of the organic molecules involved meant the necessary cominations would occur. Molecules didn't randomly collide, form proteins, then randomly poof into prokaryotes. Organic molecules like amino acids and nucleotides formed polymers which can act as replicators of other polynucleotides by nature of them being a template.I understand that, but I still don't think it could happen so quickly. Not to mention that assuming a no-creator stance, the chemicals that made up the first prokaryote would have to be randomly thrown together.
Bacteria only have one large circular DNA molecule, some have smaller ones called plasmids. Complex, but not catastrophically so.If I remember correctly, it takes something like 500 DNA molecules put in EXACTLY the right combination to make a tiny little single celled organism.
Deep time is vast- plenty of time to cover what was needed for molecular replication.Depending on how often these chemicals were thrown together, it may have taken a while.
No question that it was a lotta work! Life likely started a few times, was wiped out, then managed to gain a foothold after several molecular combinations.Then there's the occassional climate change. Poor single celled prokaryotes, it must have been incredibly frustrating... they had finally gotten the mutation for eukaryotic life (eukaryote = has a nucleus, prokaryote = no nucleus)... and then the asteroid (or whatever it was) that created the moon crashed into the earth and killed them all. That was a sad day, it's a surprise that it didn't make it as a national holiday D=.
(See, I have a sense of humor too! )
Subtle neck lengthening could certainly appear in one generation, but it'd take many to result in the giraffe we know today (as distinct from their evolutionary cousins).50 million? I figured that something so simple as a neck lengthening could happen in a few hundred years. Guess my estimates are a bit off XD.
Yep, or like the giraffe stretching it's neck to reach leaves in the tops of trees, thereby lengthening the vertebrae, and passing that on to its offspring. Discredited.Lamkarkianism? You mean like how the ancestors of birds flapped their arms and jumped off cliffs until they were finally able to fly? I thought that theory was discredited?
True! Evolution is all about ****ing and havin' babies! I meant the distinction between natural selection producing organisms that are adapted to their environment as opposed to sexual selection being selected by secondary sexual characteristics.EVERYTHING is about sexual selection. If a trait isn't considered to be "sexy," those with that trait won't get mates, and therefore won't pass the gene, no matter how beneficial it is. Why do you think humans are so stupid? Stupidity is sexually attractive to most, thus it lives on .
Missouri. Maybe... :sarcasticBiology class taught me that mutations were very rare . I liked my biology teacher too... are all the biology classes in Missouri crap?
New species couldn't pop into existence- that'd be good evidence that evolution is false. Hopeful monsters just don't occur that way. Sure mutations can result in impressive phenotypes, but functional wings just don't appear on a kitty as some creationists satirically portray evolution.Bleh, if a mutation is guaranteed to occur when a cell divides, then why is evolution so slow? If mutations can occur so rapidly, then would it theoretically be possible, if all the mutations hit just right, to evolve an entirely new species in one generation (perhaps this is where Asperger's Syndrome comes from?)?
Usually. But if the environment changes a once neutral or inconsequential mutation could aid the population in survival and reproduction.Neutral mutations are the ones that don't do anything, right?
Again, there's no question time is required, but there was plenty of time in the planet's long history.So it's still unlikely that a change will take place... it would have taken a while. Especially with all the signifigant climate changes (most people seem to agree that earth was highly volcanic and was covered in a primordial soup. Obviously, something changed along the way, how did life adapt to this?), like the sun changing, the earth's magnetic field diminishing (or is it increasing? I forget...), the world constantly going through weird temperature changes, etc... if I'm not mistaken, prokaryotes (or any single celled creatures for that matter) are not very adaptable... D=
See the above. There are two things involved here:When I say that evolution is not [SIZE=+5]yet[/SIZE]been proven conclusively ,I mean that while the proponderance of the evidence indicates that evolution is correct, untile the gaps in our knowledge are filled, we do well to keep a little bit of room for the unexpected.
Evolution is proven. It is fact. There is nothing left to faith. There are theoretical aspects to how evolution happened along the way but I don't need to believe in it like I don't need to believe in the internal combustion engine.
I did mention my atheistic Raelian friend didn't I?