Stimpson J. Cat
Graduate Poster
- Joined
- Sep 20, 2001
- Messages
- 1,949
Ian,
I already said that he was misrepresenting the principle of parsimony. Parsimony does not claim that the simplest explanation is more likely to be correct. It simply states that there is no point in adopting a more complicated explanation than is necessary.
Where did you ever get the idea that this is what I think Ockham's razor means?
Actually, it is the observation that the only assumptions in a theory which can be supported by testing the claims of the theory, are those assumptions which are logically necessary to derive the testable claims. What you posted above is a consequence of this fact.
Ockham's razor is commonly misunderstood the way you said it is, but not by me, and not by scientists in general.
On the contrary, this is exactly how scientists normally behave. This is how scientific progress is made!
The first two would only be done if all of the people studying the phenomenon had some vested interest in not falsifying the theory. The fact is that most scientists would love nothing more that to falsify some currently accepted theory, since doing so would make them famous. The third is expressly forbidden by Ockham's razor. If it is possible to invent auxiliary hypotheses to save a theory from falsification, then the theory was not properly constructed in the first place.
Of course when a theory is falsified, it is likely that the new theory will have many things in common with the old one. This is only to be expected.
Do you have any evidence to back up this claim?
Good for you. You don't have to take my word for it. Do some research into the subject. Look at how scientists have discarded theories and replaced them with new ones over the years. Talk to actual scientists, and find out how interested they are in overturning some currently accepted theory.
The proof of what I said is freely available for anybody who wants to exert the minimal effort necessary to look for it.
No, why would they? It would be very unscientific to develop an emotional attachment to a theory. Sure, it happens, but that is one of the reasons that independent verification is so important.
I can assure you that I have no emotional attachment to other people's theories. I would love to prove some widely accepted theory false. It would make my career. The same is true of most scientists.
Dr. Stupid
The very fact that we now know that the original hypothesis was an over-simplification, just verifies what I have been saying.
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Bang goes parsimony. Besides if reality did somehow have the myserious propensity to always operate according to the minimum number of entities and concepts then we would scarcely have reached the present position where a bewildering number of elementary particles are invoked to explain the world. There is nothing about reality which dictates that it should be simple.
I already said that he was misrepresenting the principle of parsimony. Parsimony does not claim that the simplest explanation is more likely to be correct. It simply states that there is no point in adopting a more complicated explanation than is necessary.
You and seemingly everyone else on here misunderstand Ockham's razor. It is not some sort of immutable law stateing that the most parsimious explanation necessarily is always correct.
Where did you ever get the idea that this is what I think Ockham's razor means?
It is a rule of thumb that if there are 2 or more theories which explain the facts then provisionally we should adopt the most parsimious theory until data suggests otherwise.
Actually, it is the observation that the only assumptions in a theory which can be supported by testing the claims of the theory, are those assumptions which are logically necessary to derive the testable claims. What you posted above is a consequence of this fact.
Ockham's razor is commonly misunderstood the way you said it is, but not by me, and not by scientists in general.
When the original hypothesis was shown to be false, and those results were reliably reproduced by independent researchers, the old hypothesis was discarded.
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This sounds very implausible to me. It certainly is not the way scientists normally behave!
On the contrary, this is exactly how scientists normally behave. This is how scientific progress is made!
As I have pointed out before it is very difficult to falsify theories because data can either be ignored, the observations can be called into question, or auxiliary hypotheses can be introduced (without changing the main thrust of the main hypothesis).
The first two would only be done if all of the people studying the phenomenon had some vested interest in not falsifying the theory. The fact is that most scientists would love nothing more that to falsify some currently accepted theory, since doing so would make them famous. The third is expressly forbidden by Ockham's razor. If it is possible to invent auxiliary hypotheses to save a theory from falsification, then the theory was not properly constructed in the first place.
Of course when a theory is falsified, it is likely that the new theory will have many things in common with the old one. This is only to be expected.
Psychologically scientists are loathe to abandon theories even when they have been "falsified". Nor, in and of itself, is this inevitably necessarily an irrational attitude to adopt.
Do you have any evidence to back up this claim?
This very fact demonstrates that your imagined scenario of dogmatic scientists allowing their preconceptions cloud their judgement of the experimental results, is not an accurate portrayal of what actually happened.
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I am highly skeptical of what you say here.
Good for you. You don't have to take my word for it. Do some research into the subject. Look at how scientists have discarded theories and replaced them with new ones over the years. Talk to actual scientists, and find out how interested they are in overturning some currently accepted theory.
The proof of what I said is freely available for anybody who wants to exert the minimal effort necessary to look for it.
Your above statement also misrepresents the scientific process itself. Scientists do not try to prove their theories. They try to disprove them.
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Now I've heard it all! Do they become disconsolate when they fail in this endeavour?? LMAO!
No, why would they? It would be very unscientific to develop an emotional attachment to a theory. Sure, it happens, but that is one of the reasons that independent verification is so important.
I can assure you that I have no emotional attachment to other people's theories. I would love to prove some widely accepted theory false. It would make my career. The same is true of most scientists.
Dr. Stupid