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Author Topic:   Misunderstanding Empiricism
Percy
Member
Posts: 22505
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.4


Message 171 of 185 (434551)
11-16-2007 10:10 AM
Reply to: Message 170 by JavaMan
11-16-2007 9:21 AM


Re: Summary
JavaMan writes:
It's only the sentence you were named in that's intended to represent your position.
None of the portion I quoted represents my position, especially the paragraph where you specifically mentioned my name. That paragraph said:
8. For myself (and I guess for Purpledawn too) such examples provide a reason to be cautious when assessing new medical advice. Percy and Nator, on the other hand, seem to be of the view that knowledge is either science or not-science, and if it's science, then it's to be trusted, regardless of the 'hardness' of the scientific field or our previous experience of pronouncements in that field.
Once again (this is verbatim from my previous message):
Thank you for this detailed misstatement of my position.
The issue is and always has been the gross error of granting equal validity to conclusions arrived at through scientific study versus those arrived at through anecdotal and/or casual observations. Both approaches employ empiricism, but experience has demonstrated over and over and over again that scientific approaches lead to increased knowledge and progress, while anecdotal approaches remain mired in the same misunderstandings for decades, even centuries.
PurpleDawn, and also LindaLou, just cannot believe that people getting together and sharing their experiences with one another do not often lead to valid and useful conclusions, that in fact the opposite is the case, they most often lead to wrong conclusions. Were this not the case then the world would not have had to await the development of scientific approaches before the rate of progress exploded.
--Percy

This message is a reply to:
 Message 170 by JavaMan, posted 11-16-2007 9:21 AM JavaMan has replied

Replies to this message:
 Message 172 by JavaMan, posted 11-16-2007 10:42 AM Percy has replied

  
Percy
Member
Posts: 22505
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.4


Message 173 of 185 (434610)
11-16-2007 2:47 PM
Reply to: Message 172 by JavaMan
11-16-2007 10:42 AM


Re: Summary
JavaMan writes:
I'm sorry if you think this misrepresents your position. However, it's the only explanation I can think of for paragraphs like these in Message 33:
That's very odd that it's the only explanation you can think of, because I just provided the proper explanation, and the context was the same back in Message 33. PurpleDawn was in essence saying that she was justified in giving greater weight to the anecdotal evidence she understands than to the scientific evidence she doesn't understand. I was telling her in Message 33 that those who have no aptitude for science but insist on attempting to understand the science anyway have set themselves a very tough task. PurpleDawn's mistake was to conclude that just because she doesn't understand the science that she's therefore free to disregard it and go by the anecdotal evidence she understands. By giving the greater weight to the worst approaches, anecdotal approaches, she's bound to reach erroneous conclusions. And this is born out by the evidence of her views, being against vaccines, for example, and citing as evidence the websites of psychics.
Anyway, here's the problem in a nutshell. You said this:
JavaMan writes:
Percy and Nator, on the other hand, seem to be of the view that knowledge is either science or not-science, and if it's science, then it's to be trusted, regardless of the 'hardness' of the scientific field or our previous experience of pronouncements in that field.
I definitely never said anything like this, it doesn't reflect what I believe, and I politely request that you stop repeating this mischaracterization of my views. If you want to explore my views with me that's one thing, but if you just want to repeatedly declare misrepresentations of my views that's quite another. I know what I believe, and telling me that I believe things I definitely do not is just absurd. Your Message 1 began with a number of misunderstandings of what had been said in the other thread, but there's no reason to seek symmetry and end with them, too.
As long as we're on the topic of your misunderstandings, I may as well mention another:
JavaMan in Message 168 writes:
1. Scientific knowledge is acquired by inductive reasoning from prior experience, and, therefore, like all inductive knowledge, is fallible. A scientific model can be falsified by a single instance of counter evidence.
Science includes the requirement of replication. A scientific model accepted after a period of replication of the experiments/observations supporting it would never be considered falsified by "a single instance of counter evidence." If, for example, a human fossil were found in the Permian, then a) the tests verifying this would have to be replicated; and b) more instances would have to be identified. The mountains and mountains of scientific research that support theories that hold this to be impossible could not be overturned by a single piece of evidence, no matter how inexplicable.
--Percy

This message is a reply to:
 Message 172 by JavaMan, posted 11-16-2007 10:42 AM JavaMan has replied

Replies to this message:
 Message 174 by JavaMan, posted 11-16-2007 4:08 PM Percy has replied

  
Percy
Member
Posts: 22505
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.4


Message 175 of 185 (434632)
11-16-2007 4:55 PM
Reply to: Message 174 by JavaMan
11-16-2007 4:08 PM


Re: Summary
JavaMan writes:
Didn't I tell you early in the thread that you were mischaracterizing my views?
Uh, no. We disagreed about whether tentativity had its origins in empiricism.
Hasn't Purpledawn told you repeatedly that you've been mischaracterizing her views?
Yes, but she was dissembling. You seem to be letting the distress she obviously felt imbue her position with a consistency and validity it did not have. I remind you again, she cited psychic websites to support her position. What more need be said about her bias toward quack sources and against scientific sources? One moment she'd be saying, "I am not more skeptical about scientific sources than I am of naturopathic sources," then the next moment she'd be saying, "I think if studies were done they'd support the naturopathic position, and by the way, aren't scientific studies biased by their source of funding?" (I'm paraphrasing, of course)
In those cases, didn't you think that your interpretation was correct, despite what we told you?
What do you mean by "we"? PurpleDawn was alone. Your prior participation in this thread ended at Message 98, more than two weeks ago. You gave PurpleDawn the impression that she was somewhere near the right track and then left her on her own.
All I've done is explained what your view in this thread seems to imply to me. I'm sure it isn't what you believe you're saying...
Good luck finding someplace where I said or implied that "knowledge is either science or not-science", or that only scientific knowledge can be trusted.
What I am saying and have been saying all along is that anecdotal approaches to gathering knowledge are far inferior to scientific ones, and that in any area appropriate for scientific study the scientific approach will yield far better answers a vast majority of the time. Both anecdotal and scientific approaches employ empiricism, but science raises empiricism to a fine art.
--Percy

This message is a reply to:
 Message 174 by JavaMan, posted 11-16-2007 4:08 PM JavaMan has replied

Replies to this message:
 Message 177 by JavaMan, posted 11-17-2007 3:25 PM Percy has replied
 Message 183 by JavaMan, posted 11-18-2007 1:29 AM Percy has not replied

  
Percy
Member
Posts: 22505
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.4


Message 176 of 185 (434769)
11-17-2007 8:15 AM
Reply to: Message 174 by JavaMan
11-16-2007 4:08 PM


Re: Summary
Hi JavaMan,
I originally intended to reply to the last paragraph of your post but didn't have time, so I'm getting to it this morning:
JavaMan writes:
Science includes the requirement of replication. A scientific model accepted after a period of replication of the experiments/observations supporting it would never be considered falsified by "a single instance of counter evidence." If, for example, a human fossil were found in the Permian, then a) the tests verifying this would have to be replicated; and b) more instances would have to be identified. The mountains and mountains of scientific research that support theories that hold this to be impossible could not be overturned by a single piece of evidence, no matter how inexplicable.
That's just detail, Percy. The principle still stands: it doesn't matter how much evidence a model has going for it, a single counter instance, e.g. firm evidence of humans existing in the Permian, falsifies the model. Then you have to change the model so that it covers all the positive evidence you've accrued so far, plus the new evidence that falsified the old model.
I understand what you're saying in principle. You and I can agree on the principle while disagreeing on how best to express it, but PurpleDawn and LindaLou have only a cloudy notion of this principle, and so when you say that it takes just a "a single instance of counter evidence" to overturn a theory, PurpleDawn looks at McGarey's 92 cases and LindaLou looks at her scads of anecdotal data and they then conclude that there's plenty enough evidence to indicate that castor oil packs work or to overturn any studies indicating that vaccines and antidepressants are safe.
Obviously there is something wrong with PurpleDawn's and LindaLou's understanding of the scientific process, because when they attempt to think scientifically they arrive at conclusions that are often contrary to very strong scientific evidence.
It is my position that PurpleDawn and LindaLou do not understand that as much as science is a way of looking at the world, it is also a set of methods for studying the world. These methods raise empiricism to a high art, and evidence gathered in this manner is far superior to the less formal more anecdotal approaches favored by PD and LL. My objection has been to their giving equal weight, indeed ever greater weight, to anecdotal evidence over scientific evidence, and I think it explains their tendency to arrive at erroneous conclusions.
--Percy

This message is a reply to:
 Message 174 by JavaMan, posted 11-16-2007 4:08 PM JavaMan has not replied

  
Percy
Member
Posts: 22505
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.4


Message 178 of 185 (434839)
11-17-2007 4:01 PM
Reply to: Message 177 by JavaMan
11-17-2007 3:25 PM


Re: Summary
JavaMan writes:
The issue is very simple. Can you envisage any circumstance in which you would ignore the scientific consensus because you didn't trust it? If you answer, yes, than I accept that my description of your position was a misrepresentation.
Your question is couched in somewhat absolute terms. How about if you instead asked if I might ever be skeptical of the scientific consensus. In that case the answer is yes, of course.
But I've been taking a comparative stance, and in the context of recent discussions it would be better to ask is if I might ever be more skeptical of the scientific consensus than I am of anecdotal evidence, and the answer is no, and that's because I understand just how poor anecdotal evidence is. As I said a few posts ago, if this were not the case then it wouldn't have taken the advent of the scientific method for scientific progress to explode.
I've encouraged Purpledawn because I believe that her intuition about medical science is right and that she's correct to question it.
I'm not objecting to her questioning medical science. I'm objecting to her giving greater weight to quacks than to science. She's directing her primary energies at questioning science while giving quacks a free ride. It isn't a question of judgement but of sheer perversity.
--Percy

This message is a reply to:
 Message 177 by JavaMan, posted 11-17-2007 3:25 PM JavaMan has replied

Replies to this message:
 Message 179 by Buzsaw, posted 11-17-2007 4:40 PM Percy has replied
 Message 184 by JavaMan, posted 11-18-2007 1:33 AM Percy has not replied

  
Percy
Member
Posts: 22505
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.4


Message 180 of 185 (434843)
11-17-2007 4:53 PM
Reply to: Message 179 by Buzsaw
11-17-2007 4:40 PM


Re: Summary
This thread's about empiricsim.
--Percy

This message is a reply to:
 Message 179 by Buzsaw, posted 11-17-2007 4:40 PM Buzsaw has not replied

  
Percy
Member
Posts: 22505
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.4


Message 182 of 185 (434856)
11-17-2007 7:38 PM
Reply to: Message 181 by nator
11-17-2007 7:30 PM


Re: Summary
I think Buz is drawing the thread off-topic.
--Percy

This message is a reply to:
 Message 181 by nator, posted 11-17-2007 7:30 PM nator has not replied

  
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