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The five propositions below seem to be the most common misconceptions based on a Creationist straw-man version of evolution. If you hear anyone making any of them, chances are excellent that they don't know enough about the real theory of evolution to make informed opinions about it. Evolution has never been observed. Evolution violates the 2nd law of thermodynamics. There are no transitional fossils. The theory of evolution says that life originated, and evolution proceeds, by random chance. Evolution is only a theory; it hasn't been proved. Explanations of why these statements are wrong are given below. They are brief and therefore somewhat simplified; consult the references at the end for more thorough explanations.
Evolution is only a theory; it hasn't been proved.
12. Scientific Theories are not "tentative ideas" or "hunches".
The word "theory" is often used this way in everyday conversation, but a theory in science refers to a highly probable, well-tested comprehensive explanation, usually for a large collection of observations.
Originally posted by Deaf Alien
reply to post by Deaf Alien
Evolution is only a theory; it hasn't been proved.
This one gets at me...
I do not think they understand the concept of what a theory means (science)
"The theory of evolution says that life originated, and evolution proceeds, by random chance."
There is probably no other statement which is a better indication that the arguer doesn't understand evolution. Chance certainly plays a large part in evolution, but this argument completely ignores the fundamental role of natural selection, and selection is the very opposite of chance. Chance, in the form of mutations, provides genetic variation, which is the raw material that natural selection has to work with.
Originally posted by adjensen
Actually, I think that their point (those who say that it's a theory) is to differentiate it from a law. Some people treat evolution like it is a law, when it is not.
Evolution is utterly dependent on randomness, so to say that it does not proceed by random chance is a logical fallacy.
Originally posted by Barcs
Get your terminology right before appealing to that fallacious argument.
Evolution is utterly dependent on randomness, so to say that it does not proceed by random chance is a logical fallacy.
That's not true. Evolution is "utterly dependent" on BOTH genetic mutations AND the environment.
What exactly qualifies a mutation as "random"? It's such a poor description of what actually happens. It could be something like cosmic radiation that causes a genetic change. If we know the cause, and why it happens, how can it be considered random?
Originally posted by adjensen
I didn't say that it was MY argument, I was just pointing out why people say that.
If something requires randomness (as we both seem to agree that it does,) then it is dependent on randomness, period. End of story. Stop arguing.
Evolution cannot happen without genetic drift, but it can happen in an unchanging environment -- to say that the environment need change implies that species improvement can only happen in relationship to the natural environment.
Because knowing how something happens is not knowing "why" something happens. If it is unpredictable, as any sufficiently chaotic system is, then the change is random.
Originally posted by Barcs
Originally posted by adjensen
If something requires randomness (as we both seem to agree that it does,) then it is dependent on randomness, period. End of story. Stop arguing.
Dependent on randomness is not equal to driven by randomness. People make that argument to suggest that evolution is random. It's not.
Because knowing how something happens is not knowing "why" something happens. If it is unpredictable, as any sufficiently chaotic system is, then the change is random.
But they can predict certain things about the mutations, and they do know many of the causes.
HOW DID SEX ORIGINATE? Asexual reproduction gives up to twice as much reproductive success (‘fitness’) for the same resources as sexual reproduction, so how could the latter ever gain enough advantage to be selected? And how could mere physics and chemistry invent the complementary apparatuses needed at the same time (non-intelligent processes cannot plan for future coordination of male and female organs).
Originally posted by sheepslayer247
I may be way off-base here, as this is not a subject I spend a lot of time looking in to, but why can't Evolution and Creationism co-exist?
Is it possible to have been "created" and then left to evolve over time through the same process' adjensen described?
Originally posted by sheepslayer247
I may be way off-base here, as this is not a subject I spend a lot of time looking in to, but why can't Evolution and Creationism co-exist?
Is it possible to have been "created" and then left to evolve over time through the same process' adjensen described?
Originally posted by Barcs
reply to post by theophilus40
It seems many folks need to understand that scientific means backed by objective evidence