you losing me a little bit with the "intelligent design",,,,, and no comparison to human design,,,, humans are intelligent,,,,, and i believe nature gives us a basis for our designs,,,,,,,
but anyway,,,, to me he is just saying all the pieces , that are required, must be in place for natural selection to occur, and i believe that is true,,,,,,
one example, the most fit survive, but depending on the circumstances,,,,, the environment,,,,, the place,,, one group or another will be the most fit,,,,,,, all the pieces must be in place, to determine, say for humans, if the most fit are ones gifted mentally or physically or both,,,,,
to me, he is using the mouse trap, just to represent the circumstance,,,,
i dont believe Darwin ever put down the importance of situational circumstance, in his natural selection theory,,,,,,,the group best suited to survive/flourish,,, in a particular environment, would,,,,,, the environment (mouse trap) played a key role,,,, a variation in it would result in a different result
2007-04-28 03:36:47
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answer #1
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answered by dlin333 7
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A mousetrap is a poor example to use. In discussions I prefer to use the example of an eye, coupled with some concepts I got from Douglas R. Hofstadter. For an eye to be of any use at all, the photosensetive cells need to appear on the surface of the body, in an area that is protected yet in the right orientation to be of aid in sensing. For example, if a critter evolved an eye on the sole of it's foot, on the hands, behind the ears, on it's back, or anywhere else, it would be of no use. Likewise it would need to simultaneously evolve an optic nerve and a center to interpret the signals coming from the receptors. I should clarify, I'm not even discussing lenses, retinas, tear ducts, or anything else- just photosensetive cells, like very primitive animals make use of. To make it harder, once the animal had evolved the cells, nerves, connections, brain centers, etc., it would somehow need to know what to do with this new sensory organ. Don't imagine it as giving a blind person sight or a deaf person hearing, (we already own the tools to learn how to interpret those senses) imagine it as giving a guinea pig sonar. Likewise, a dinosaur, which had spent millions of years learning through natural selection NOT to jump off tall cliffs, would need to know to do this once it had evolved the requisite feathers, membranes, muscles, lightness of body, etc. that it would need to be able to fly. It would also need to know how to control itself in the air- a feat hard enough for humans to do with vastly simplified and refined flight models. It would need to know how to flare properly, to avoid a catastrophic introduction to the ground. Natural selection is not flawed- it's just a term for those animals (or humans) unfit to live dying. You might as well devise a theory of mice not being able to lift large boulders. It's the idea of macro-evolution that is flawed. We can know this without knowing how everything came to be. Scientists knew that the sun was not a giant burning ball of coal long before they knew what it really was.
2007-04-28 11:37:38
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answer #2
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answered by ian_eadgbe 3
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