SagaLore
Elite Member
- Dec 18, 2001
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Originally posted by: ffmcobalt
Originally posted by: BDawg
Originally posted by: ffmcobalt
microevolution, something small changing it's habbits to adapt to it's environment - that I can agree with
macroevolution, an entire organism making physiological changes into a better form - that I can't agree with, since I agree with the Laws of Thermodynamics saying that nothing gets better, everything just gets worse.
nik
Please, please, please understand what you're arguing against before you do so.
Evolution violates the 2nd law of thermodynamics
This shows more a misconception about thermodynamics than about evolution. The second law of thermodynamics says, "No process is possible in which the sole result is the transfer of energy from a cooler to a hotter body." [Atkins, 1984, The Second Law, pg. 25] Now you may be scratching your head wondering what this has to do with evolution. The confusion arises when the 2nd law is phrased in another equivalent way, "The entropy of a closed system cannot decrease." Entropy is an indication of unusable energy and often (but not always!) corresponds to intuitive notions of disorder or randomness. Creationists thus misinterpret the 2nd law to say that things invariably progress from order to disorder.
However, they neglect the fact that life is not a closed system. The sun provides more than enough energy to drive things. If a mature tomato plant can have more usable energy than the seed it grew from, why should anyone expect that the next generation of tomatoes can't have more usable energy still? Creationists sometimes try to get around this by claiming that the information carried by living things lets them create order. However, not only is life irrelevant to the 2nd law, but order from disorder is common in nonliving systems, too. Snowflakes, sand dunes, tornadoes, stalactites, graded river beds, and lightning are just a few examples of order coming from disorder in nature; none require an intelligent program to achieve that order. In any nontrivial system with lots of energy flowing through it, you are almost certain to find order arising somewhere in the system. If order from disorder is supposed to violate the 2nd law of thermodynamics, why is it ubiquitous in nature?
The thermodynamics argument against evolution displays a misconception about evolution as well as about thermodynamics, since a clear understanding of how evolution works should reveal major flaws in the argument. Evolution says that organisms reproduce with only small changes between generations (after their own kind, so to speak). For example, animals might have appendages which are longer or shorter, thicker or flatter, lighter or darker than their parents. Occasionally, a change might be on the order of having four or six fingers instead of five. Once the differences appear, the theory of evolution calls for differential reproductive success. For example, maybe the animals with longer appendages survive to have more offspring than short-appendaged ones. All of these processes can be observed today. They obviously don't violate any physical laws.
Well, considering that I still believe in the laws of thermodynamics, I would say that your post didn't do much convincing... It's all based on someone's theory that has evidence for it and evidence against it. We're going around in circles, people...
nik
I much do not like the 2nd Law argument, I wish Creationists had never made that one up.
I guess that's how the 2nd law was intended to be used... to combat the notion that microevolution could benefit the system and progress organisms into more complex entities. On both sides of the argument it seems misleading.
