01-31-2007, 06:57 PM | #481 | ||
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Also my views on information gathering: Our senses probably aren't wrong. If they were wrong as much as ZAK seems to imply they are, predators would have killed us all before we became intelligent enough to debate this very point. Through evolution, we are far from perfect. Humans are clunky, fragile, and inefficient beings. Our senses aren't wrong, they are just woefully incomplete. A magician does a card trick, our senses show us that he's somehow extracted four aces in a row. They don't show us how he did it, which is something that exists. If I smell lemon, then there are the chemicals in the air that make up the lemon smell. Just because I can't find the lemon doesn't mean that my senses are wrong, (hence every single cleaning product ever claims "You can smell lemons" not "lemons appear to make the room smell nice") just that my senses do not hand me the information that is the lemon location. Or, you're brain damaged. That's really the trump card here.
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01-31-2007, 07:11 PM | #482 | ||
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I just realized a different interpretation of this argument, though, so I'll address it. It occurs to me that what you might have been arguing is that we don't need to assume our senses are good, because it's so likely anyway. I don't think that's any good. If all humans have their senses flawed in the exact same way, then it makes sense that our observations would all be consistent with each other, yet still all be imperfect representations of reality. Quote:
I need a better example, something people maybe won't harp on so much... |
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01-31-2007, 07:46 PM | #483 | ||||||||
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Sidetrack: What we sense is not what we perceive. What he sense is the information sent to the brain. What we perceive is how the brain interprets that information. The information collected by our senses is never flawed it is only limited. The interpretations are what become flawed. That being said machines can't interpret data. You expose a machine able to read the wavelength of a photon a photon with a wavelength of 475 nm it reports a wavelength of 475 nm. You show that readout to a person it is still 475nm. That fact never changes. However, if you show the person the photon you could get any number of answers as to what shade of blue it is. Machines remove the flaws of perception leaving only the perfection of sensory information. Which is why it is impossible that machines could be wrong in the same way as humans. Quote:
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I would also like to spend some time pointing out that two absolutely true premises can lead you to a false conclusion. This is not however a failure in logic nor has it anything to do with being able to interpret the premises as false is on so desired. This particular case only occurs when you improperly phrase your logic argument. That is to say when you logic argument is in a form not consistent with logic thereby it must then be illogical. Quote:
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01-31-2007, 08:10 PM | #484 | ||||
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I'll take this opportunity to point out that I'm well aware that these things are massively ridiculous bullshit. But at the same time, we can't discount them under a deductive system. Quote:
Getting tired? I sure am. Maybe a different example would be better, because this sort of thing could be debated for ages. You might be aware how long and hard people tried to prove that every line had a unique parallel through any given point before realizing it had to be postulated... Last edited by ZAKtheGeek; 01-31-2007 at 08:14 PM. |
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01-31-2007, 08:29 PM | #485 | ||||
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Now, we defined blue as a photon with a wavelength 475nm. We could call it red, green, or ford. It doesn't change the fact that it is 475nm. We can directly measure its wavelength and compare that with our definition of meter and it will always give us 475nm. This is why 475nm is an objective measurement and blue is subjective. Further, we know if the machines are flawed because we can compare the measurement they make of say a known length(we known the length cause we held it next to the standard) to what the known length actually is. Thereby we can fix the error in any number of ways. Now don't try telling me our definition of what a meter is and what a second is are wrong. They can't be wrong because they are the definitions of a meter and a second. Edit: Quote:
The effects of external objective reality extend into all aspects of existence. and then the statement right after that would read: Some effects of external objective reality do not extend into all aspects of existence Last edited by Sithdarth; 01-31-2007 at 08:35 PM. |
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01-31-2007, 09:24 PM | #486 | |||||
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Let me put the example into less abstract terms. Let's say that, for a small set of wavelengths between yellow and orange (whatever specific lengths that range may represent), we perceive those wavelengths exactly as we do those that are around 475 nm. And like I said before, our perceptional error prevents us from using machines to realize this gap in our vision. That would represent an unidentifiable error in our observations, if it worked that way in all humans. Quote:
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01-31-2007, 10:05 PM | #487 | ||
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I'm sorry ZAK, did you just say "Our senses might be wrong, but for all logic we have to assume that they are right. But all logic is wrong, because we can never be sure about anything!"
That's...I view that as cowardly at best. It's grasping an abstract concept with no real bearing on anything and somehow putting that forward as revolutionary and trying to establish it as something big and meaningful. Let's go with your argument for a moment. Our senses might be consistently feeding us fallacies, and all logic is based on an assumption. Isn't it just as likely that our senses could not be feeding us fallacies? EDIT- Quote:
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01-31-2007, 11:12 PM | #488 |
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Ack...an interesting religious discussion. Screw it, I like tangents.
And one tangential comment before I dive in: this is to Swordchuck and Archbio. For the interest of not only yourselves (you both seemed to get a little agitated at each other, for no good reason), but for readers of this thread (me, and I presume others), perhaps it would be best if you went beyond "No, this is wrong" and other fanciful one-liners in your back and forths. I had to stop myself on several occasions and ask myself what the hell you guys were arguing about, because you managed to lose me (and perhaps yourselves). Perhaps instead of one-liners, you could say "This is wrong. Here is why it's wrong: *explanation*." If there's a misunderstanding, instead of saying "Read it again, jackass," explain it again, better. Back to the current subject of the thread. Here is what comes to mind, for me, based on what Zak and his "opponents" are saying: Zak seems to be talking about objective reality. I mean true, objective reality. The true nature of the universe, perhaps. This is at least how I've comprehended him. His opponents have been, by and large, talking about human objective reality. Yes, we all (aside from mutants, or defect individuals) perceive blue when we process reflected 475nm light. I think there is truth to this, but it is human truth. Hue, however, is beyond human perception. We can, I think quite correctly, infer that colour is used very extensively and effectively by many organisms throughout the world (something that couldn't happen if other organisms weren't on some level perceiving hue as well). We perceive our entire reality through a filter. It's the filter of our senses, and what makes it through the filter is processed by our brain to form our perception of reality. There are truths we can form about objective reality, for us. Although there are differences between individuals, we're far more similar than we are different. I think we can all probably agree the sky is blue during the day, unless something unusual is happening (apologies to the colour blind among us). However, and this is only my interpretation, I think what Zak might be saying is that while this may be true for OUR objectivity, it may not be THE objectivity. If we were all extinct, would the sky be blue during the day? Is it ACTUALLY blue? What we perceive is a subjective view of reality. We can come together and pool our experiences and with reason, come up with an objective, but still HUMAN, view of reality. That view of reality is a face of the true objective reality of the universe. It is probably not THE objective reality. Can we get a grip on the true objectivity? I think so. Unfortunately, we have no other sentient, rational organisms we can work together with (or at least properly communicate with). Yet. I think some conclusions in science show us a truer, perhaps colder, nature of the universe. Our definition of a second, given to an alien species and properly translated, should be the same thing. What I mean is, given an alien species had a conception of time like we do, and could comprehend mathematics in a way similar to ours such that translation and communication is possible, the alien could measure the radioactive signals (or whatever god damn mumbo jumbo Sith was spurting) of a cesium atom and it would get the same rate we would. It would observe the same phenomenon. If this was possible, or even if we could communicate with other sentient, rational beings, I think we would transcend the meaning of "objective," as it is defined presently. |
02-01-2007, 04:49 AM | #489 |
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I just wanted to point out that this tangent is not only eating up ridiculous amounts of space with a pointless (at least in my opinion) argument, and that I haven't seen so much as one word referring to religion in a couple thousand.
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02-01-2007, 08:05 AM | #490 | ||||||
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So you get to testing. First you compare the standard for the meter with what ever your spectrometer is using. If these don't match then you found your problem. If they do match its time to go the hospital and have you brain scanned and/or visit your local shrink. This would be how it is in fact not possible to misperceive our instruments in an undetectable way. This is because we have this standard unchanging well defined objective measurements. Quote:
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