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Author Topic:   Induction and Science
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


(1)
Message 455 of 744 (592300)
11-19-2010 12:47 PM
Reply to: Message 453 by Jon
11-19-2010 12:44 PM


Re: The Topic (Re: Universal Principles)
Please jump off the nearest skyscraper Jon. Please.
For me?

This message is a reply to:
 Message 453 by Jon, posted 11-19-2010 12:44 PM Jon has not replied

  
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


(1)
Message 456 of 744 (592301)
11-19-2010 12:49 PM
Reply to: Message 454 by Panda
11-19-2010 12:46 PM


Re: Replies Await...
Panda to Jon writes:
It is so nice to see you using inductive reasoning.
Classic.
How did I miss that........

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Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


Message 458 of 744 (592310)
11-19-2010 1:01 PM
Reply to: Message 457 by Jon
11-19-2010 12:55 PM


Re: Replies Await...
Jon writes:
My argument is still that inductive arguments are deductive arguments with missing premises.
From where are these premises derived?
Jon writes:
When you have one like this, post it and we can address it.
You want me to layout a deductive argument to show you why your arguments are ultimately inductive?

This message is a reply to:
 Message 457 by Jon, posted 11-19-2010 12:55 PM Jon has replied

Replies to this message:
 Message 459 by Jon, posted 11-19-2010 1:11 PM Straggler has replied

  
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


Message 460 of 744 (592312)
11-19-2010 1:26 PM
Reply to: Message 459 by Jon
11-19-2010 1:11 PM


Re: Replies Await...
Jon writes:
Separate out each of the premises, the axioms, and the conclusions:
You want me to present an argument against axiomatic "derived from nothing" conclusions on the basis of "derived from nothing" axioms?
Are you serious?
Edited by Straggler, : No reason given.

This message is a reply to:
 Message 459 by Jon, posted 11-19-2010 1:11 PM Jon has replied

Replies to this message:
 Message 464 by Jon, posted 11-19-2010 2:55 PM Straggler has not replied

  
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


(1)
Message 461 of 744 (592319)
11-19-2010 1:45 PM
Reply to: Message 459 by Jon
11-19-2010 1:11 PM


Re: Replies Await...
You won't like it because it isn't based on "derived from nothing" axioms. But here is the argument against your position.
The argument that scientific conclusions are the result of logical deductions made from derived from nothing axioms is functionally equivalent to the argument that scientific conclusions are the result of deductions made from blind random guesses.
This means that scientific conclusions themselves are functionally equivalent to blind random guesses.
But science has demonstrated itself as being able to make conclusions which are demonstrably superior in terms of reliability to blind random guesses (e.g. the timings of eclipses)
Thus scientific conclusions are not functionally equivalent to blind random guesses.
Thus Jon’s view of scientific methodology is wrong.

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 Message 459 by Jon, posted 11-19-2010 1:11 PM Jon has not replied

  
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


Message 463 of 744 (592326)
11-19-2010 2:27 PM
Reply to: Message 462 by Modulous
11-19-2010 1:51 PM


Re: Induction into deduction
Mod writes:
It is true that you can make any inductive argument deductive by the use of arbitrary premises.
You can make anything be anything you want based on "arbitrary premises".
Which is exactly why Jon's "derived from nothing" axiomatic approach is a recipe for stupidity.

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Replies to this message:
 Message 466 by Jon, posted 11-19-2010 3:51 PM Straggler has replied

  
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


Message 499 of 744 (592742)
11-21-2010 6:14 PM
Reply to: Message 466 by Jon
11-19-2010 3:51 PM


Re: Induction into deduction
Jon writes:
Except that here we are dealing with Science, which severely constrains the axioms we can have and conclusions we can derive.
Can you be more specific about these constraints? What is an example of a scientific axiom and what is an example of a non-scientific axiom?
Jon writes:
Perhaps this has been due to my own lack of clarity, but as you've yet to ask any questions about my argument, I have been unable to pinpoint where the lack clarity lies.
I have asked lots. But I have asked this one repeatedly. You have yet to answer it.
Jon — How is an assumption derived from nothing different to a blind random guess?

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 Message 466 by Jon, posted 11-19-2010 3:51 PM Jon has not replied

  
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


Message 500 of 744 (592743)
11-21-2010 6:22 PM
Reply to: Message 477 by nwr
11-20-2010 1:46 PM


Re: Universal Principles
Doing calculations that pertain to future events (e.g. landing the rocket before you actually land it) indisputably rely on nature (i.e. gravity and suchlike) actually operating in accordance with previous observations and complying with thos calculations.
The conclusion that nature will behave at some point in the future as it has been observed to behave thus far is based on inductive reasoning.
How cannit possibly be otherwise?

This message is a reply to:
 Message 477 by nwr, posted 11-20-2010 1:46 PM nwr has replied

Replies to this message:
 Message 503 by nwr, posted 11-21-2010 6:49 PM Straggler has replied

  
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


Message 501 of 744 (592744)
11-21-2010 6:27 PM
Reply to: Message 478 by nwr
11-20-2010 1:55 PM


Re: Nwr: "Scientific theories have nothing to say about how nature behaves"
Nwr writes:
Scientific theories have nothing to say about how nature behaves.
Straggler writes:
Then I guess we can just change our "standards" build a series of perpetual motion machines and solve the world's energy crisis before breakfast.
Nwr writes:
I have not said anything which would have that implication.
If our scientific theories "have nothing to say about how nature behaves" how can our scientific theories tell us (tentatively) what is physically possible or impossible?
Indeed how can they tell us anything that allows us to manipulate nature in the ways that we indisputably do?
On what principles do you think your computer was constructed? Ones that tell us nothing about nature?
Edited by Straggler, : No reason given.

This message is a reply to:
 Message 478 by nwr, posted 11-20-2010 1:55 PM nwr has replied

Replies to this message:
 Message 504 by nwr, posted 11-21-2010 6:59 PM Straggler has replied

  
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


Message 505 of 744 (592753)
11-21-2010 7:04 PM
Reply to: Message 480 by nwr
11-20-2010 2:29 PM


Re: Nwr: "Scientific theories have nothing to say about how nature behaves"
Nwr writes:
Straggler writes:
Your non-inductive description of science spectacularly fails to deal with the indisputable fact that science as practised by real scientists makes inductive conclusions about the way nature will behave in as yet unobserved circumstances.
You assert that as "indisputable fact", yet you have not produced any evidence to back that up.
So you continue to deny the existence of universal scientific principles or the ability of science to draw conclusions about the future behaviour of the world on the basis of these principles?
Newton’s universal law of gravitation has already been discussed (the name is the clue here). Conservation of energy. Heisenberg’s uncertainty principle. The second law of thermodynamics. All are examples of scientific principles which are considered by science to accurately describe the behaviour of nature universally. Not just here and now. Not just that which has been observed. But (tentatively) that which will be observed and even those things unobserved. Induction.
I am holding my pen in the air. I am going to let go. What is the scientific conclusion regarding the actual bahaviour of my pen that will be observed when I let it go?
Nwr writes:
"Scientific theories have nothing to say about how nature behaves"
You have invented a form of "science" that is unable to comment on what it is that a pen will do when dropped. Go figure.
Nwr writes:
I don't know what objection you could have to guesses and opinions.
I object to you equating the demonstrably reliable conclusions of science to "guesses" and "opinions" because they are demonstrably superior in terms of reliability to guesses and opinions. E.g. the timings of eclipses or the behaviour of as yet undropped pens.
Nwr writes:
"Scientific theories have nothing to say about how nature behaves"
Nwr writes:
But I do not see that it disagrees with anything that I have said.
Then you can't read.
Nwr writes:
Straggler writes:
Can you tell us what it is you think scientific theories are doing and why they allow us to manipulate and control aspects of nature so successfully then?
I think I have just done that in the preceding couple of paragraphs.
You have (at best) loosely described how it is that science works as an explanatory framework for already known observations.
Your view of science (like so many others we are confronted with here at EvC) is utterly unable to account for the fact that science does not only explain. It also enables us to accurately predict the behaviour of nature. Certainly a position that asserts "Scientific theories have nothing to say about how nature behaves" is not going to be able to explain how it is that science does constantly tell us how nature almost certainly will behave from one moment to the next.
Until you can account for the ability of science to do that without invoking induction to conclude that nature will continue to operate in a way that is consistent with the way it has been observed to behave thus far - You have no position.

This message is a reply to:
 Message 480 by nwr, posted 11-20-2010 2:29 PM nwr has replied

Replies to this message:
 Message 507 by nwr, posted 11-21-2010 7:39 PM Straggler has replied

  
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


Message 506 of 744 (592754)
11-21-2010 7:09 PM
Reply to: Message 503 by nwr
11-21-2010 6:49 PM


Re: Universal Principles
Nwr writes:
Doing calculations depends only on the mathematics being correct.
Whether the calculations actually manage to physically land the rocket or not is utterly dependent on reality operating in accordance with those calculations. The calculations could be done perfectly but if they don't describe nature to a decent extent the rocket landing will fail.
Why would we possibly expect nature to operate in accordance with our calculations unless we are inductively concluding that nature will continue to behave as it has been observed to behaves thus far?
Edited by Straggler, : No reason given.

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 Message 503 by nwr, posted 11-21-2010 6:49 PM nwr has seen this message but not replied

  
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


Message 509 of 744 (592764)
11-21-2010 7:58 PM
Reply to: Message 507 by nwr
11-21-2010 7:39 PM


Re: Nwr: "Scientific theories have nothing to say about how nature behaves"
Nwr writes:
Straggler writes:
So you continue to deny the existence of universal scientific principles or the ability of science to draw conclusions about the future behaviour of the world on the basis of these principles?
I haven't actually said that. I prefer that you don't make stuff up.
Yes you have. You said "Scientific theories have nothing to say about how nature behaves". You have also described scientific conclusions regarding the timing of future eclipses as "guesses" and "opinions".
If you have changed your mind on that just say so and then explain how a scientific theory can accurately predict the behaviour of nature without first concluding that nature will behave as observed to behave thus far.
I predict that you will not be able to without invoking inductive reasoning
Nwr writes:
As you can see, instrumentalism holds that theories are not descriptions.
But instrumentalism doesn't answer the question I asked you. When making predictions why would we possibly expect nature to operate in accordance with our theories unless we are inductively concluding that nature will continue to behave as it has been observed to behaves thus far?
Nwr writes:
Then you have badly misunderstood what I said.
It would aid everyones understanding if you both stopped contradicting yourself and didn't rely on irrelevant broad philosophic terms as answers to specific questions.
"I am a post-modern anti-Popperian instrumentalist with constructivism tendencies" is a parody of the sort of meaningless philoso-babble answers you repeatedly give.
Cut the horseshit and answer the questions.

This message is a reply to:
 Message 507 by nwr, posted 11-21-2010 7:39 PM nwr has replied

Replies to this message:
 Message 511 by Jon, posted 11-22-2010 9:46 AM Straggler has replied
 Message 522 by nwr, posted 11-22-2010 5:20 PM Straggler has replied

  
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


Message 517 of 744 (592835)
11-22-2010 1:38 PM
Reply to: Message 511 by Jon
11-22-2010 9:46 AM


Re: Nwr: "Scientific theories have nothing to say about how nature behaves"
I am holding my pen in the air. I am going to let go. What is the scientific conclusion regarding the actual bahaviour of my pen that will be observed when I let it go?
Jon writes:
A prediction is not accurate at the time it is made; it is accurate at the time it is fulfilled. There is, thus, no reason why 'guesses' and 'opinions' cannot be accurate predictions.
It is possible that even blind random chance will sometimes hit upon the correct answer. But I would suggest that your chances of accurately guessing when the next eclipse will occur are not good.
Scientific conclusions are not baseless guesses or opinions which are derived from nothing as you have asserted throughout this thread. Scientific conclusions are demonstrably superior in terms of reliability to guesses and opinions. This Jon is why we practise science rather than just sit on the beach pontificating as to the nature of reality and plucking axioms out of our arses so that we can derive whatever conclusions take our fancy.
Jon writes:
But, I think your wording implies some sort of complete certainty
Then you are a idiot. Have you missed my (and everyone else’s) repeated us of the word tentative?
Jon writes:
So, to help clear things up: what certainty do you place in the conclusion that 'nature will behave as observed to behave thus far'?
Inductively I tentatively conclude that nature will continue to operate as it has been observed to operate thus far. Science would be simply unable to function without this inductively derived conclusion.
Jon writes:
I think you are getting this confused, Straggler.
Oh the irony

This message is a reply to:
 Message 511 by Jon, posted 11-22-2010 9:46 AM Jon has replied

Replies to this message:
 Message 521 by Jon, posted 11-22-2010 5:19 PM Straggler has replied

  
Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


Message 518 of 744 (592855)
11-22-2010 2:35 PM
Reply to: Message 515 by Panda
11-22-2010 12:44 PM


Re: induction
Panda writes:
Do you wonder if it is even worth trying to discuss anything with Jon?
Constantly.
But I have to wile away the long winter evenings somehow.....

This message is a reply to:
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Straggler
Member
Posts: 10333
From: London England
Joined: 09-30-2006


Message 523 of 744 (592875)
11-22-2010 5:30 PM
Reply to: Message 522 by nwr
11-22-2010 5:20 PM


Re: Nwr: "Scientific theories have nothing to say about how nature behaves"
Back to your vagueties again I see.
So have you decided yet whether or not science is able to reliably and accurately make conclusions about the future behaviour of natural phenomenon?

This message is a reply to:
 Message 522 by nwr, posted 11-22-2010 5:20 PM nwr has replied

Replies to this message:
 Message 526 by nwr, posted 11-22-2010 5:37 PM Straggler has replied

  
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