RE: Intelligent Design: Irreducible Complexity?
August 17, 2014 at 1:29 pm
(This post was last modified: August 17, 2014 at 1:43 pm by The Grand Nudger.)
Quote:How does the organism know that a signal from one cell indicates one direction, while a signal from another indicates another direction?It doesn't have to know anything. Again, phototropism. All that matters is that some effect is achieved. This effect can be and often is, mechanical. Tumblers in a lock. Auxin is photophobic, it doesn't know which direction light comes from, it doesnt even "know" it -is-, or where it is, it simply doesn't function in the presence of light and so anything that utilizes auxin as a growth hormone is capable of tracking the sun. To -us-, it seems like comprehension - and maybe we ought to give some serious thought to -our- "knowing" of things in this regard, rather than insist that it would be impossible or improbable for a plant to be able to do -precisely what we observe them doing- just because we can't spot a mechanism for "knowing". Knowing.....is.....not.......required. Understand?
If a photoreceptor was hooked or placed on the mechanism that tells a flagellum to move, the organism would move towards (or away) from light. It doesn't know what direction it';s moving in. It doesn't know that there is such a thing as "light" -or direction. It's just a signal - connected to anything capable of accepting input. When light hits it, the motor starts. Yes, this can lead to tragedy, in the same way that we are - as a function of being able to "know" able to be tricked. It doesn't matter whether or not any individuals strategy fails them, what matters is whether or not the strategy plays out in the positive over the population (leveraging this strategy) as a whole.
(circadian rhythms are also easily obtained without any knowing involved. Try this, only those creatures whose randomly generated rhythms lined up with when energy was actually available persist in the population over time. The rest, randomly trying to synthesize when there is nothing there to synthesize....have died)
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