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Author Topic:   A proper understanding of logical fallacies will improve the quality of debate
Percy
Member
Posts: 22499
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.9


Message 34 of 344 (640857)
11-13-2011 7:20 PM
Reply to: Message 31 by designtheorist
11-13-2011 7:01 PM


Re: Another source
designtheorist writes:
The standard definition will say an appeal to authority can be a logical fallacy if the person is saying the expert is infallible.
I know this is the definition you like, but it is not the standard definition, and it is not the definition everyone else is using. Jar provided this definition that I think most here would accept:
Jar in Message 25 writes:
It is perfectly valid to specify attributions, but when you go one step further and assert that "because x is an authority y is valid" it is always a logical fallacy.
You replied, "Thank you jar! Finally someone gets it!" but Jar said nothing about infallibility, and no one here agrees with you that what makes an appeal to authority fallacious is a claim that the authority is infallible.
If you can clear up the apparent contradiction between your definition and your statement of agreement with Jar then I think it would help the discussion a great deal.
--Percy

This message is a reply to:
 Message 31 by designtheorist, posted 11-13-2011 7:01 PM designtheorist has not replied

  
Percy
Member
Posts: 22499
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.9


Message 121 of 344 (641464)
11-19-2011 3:16 PM
Reply to: Message 111 by designtheorist
11-19-2011 1:05 PM


Re: Another source
You're going to have to get straight what the argument from authority is. Quoting or referencing an authority is not the fallacy of argument from authority. Arguing that something is true because an authority says it is true is the fallacy of argument from authority.
--Percy

This message is a reply to:
 Message 111 by designtheorist, posted 11-19-2011 1:05 PM designtheorist has not replied

  
Percy
Member
Posts: 22499
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.9


Message 140 of 344 (641543)
11-20-2011 6:02 AM
Reply to: Message 139 by designtheorist
11-20-2011 5:13 AM


Re: Reply to Granny Magda #122
designtheorist writes:
Arthur Eddington — First, thank you for making me read more about this interesting man. It is true he was raised a Quaker. This is new information for me. I have found comments online describing him both as a lifelong Quaker and an atheist.
Might the sources describing Eddington as an atheist be creationist?
The only quote which I cannot use in the same way (at the moment) is the Eddington quote. The other quotes have stood up to your challenge.
In a discussion of logical fallacies, it matters not what those men said or believe. Whoever is right or wrong about them doesn't matter, because being wrong is not a logical fallacy.
That some scientists see hints of the supernatural in the Big Bang is true. That the Big Bang suggests the supernatural because some scientists think so is the fallacy of argument from authority. That the Big Bang suggests the supernatural because of cited evidence would be a valid scientific argument, were there any evidence to cite.
--Percy

This message is a reply to:
 Message 139 by designtheorist, posted 11-20-2011 5:13 AM designtheorist has replied

Replies to this message:
 Message 141 by designtheorist, posted 11-20-2011 7:03 AM Percy has replied

  
Percy
Member
Posts: 22499
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.9


Message 159 of 344 (641583)
11-20-2011 12:55 PM
Reply to: Message 141 by designtheorist
11-20-2011 7:03 AM


Re: Reply to Percy
designtheorist writes:
You ask if the source describing Eddington as an atheist might be creationist. Yes, but that doesn't mean the source is wrong.
No, of course the source being creationist doesn't mean it's wrong. Just a lucky guess by me, right?
Concerning quote mining, I haven't seen any particularly bad quote mining examples from you in this thread. We agree about the definition of quote mining, so maybe I shouldn't have replied to your response to Granny Magda, but you didn't reply to my Message 121 and so left me kind of hanging. I'm focused on the fallacy of argument from authority because, as far as I can tell, you still have the definition wrong.
The rest of the evidence is in the form of logic...
You use logic to reason from evidence. Proper reasoning from good evidence leads to conclusions likely to be true. Reason doesn't produce evidence. I'm not sure if this fallacy has a name, but it should.
--Percy

This message is a reply to:
 Message 141 by designtheorist, posted 11-20-2011 7:03 AM designtheorist has replied

Replies to this message:
 Message 163 by designtheorist, posted 11-20-2011 1:47 PM Percy has replied
 Message 171 by jar, posted 11-20-2011 3:24 PM Percy has seen this message but not replied
 Message 172 by subbie, posted 11-20-2011 3:49 PM Percy has seen this message but not replied

  
Percy
Member
Posts: 22499
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.9


Message 168 of 344 (641593)
11-20-2011 2:22 PM
Reply to: Message 163 by designtheorist
11-20-2011 1:47 PM


Re: Reply to Percy
designtheorist writes:
My wife already thinks I spend too much time on here.
She's right. All our wives are right! But don't give up - after all, you've found someone on the Internet who is wrong, and we can't let that go on!
Keeping the focus on fallacies instead of the Big Bang, I see one error and one fallacy. The error:
The evidence we start with is the fact the singularity is a mathematical concept not a physical concept, meaning the singularity cannot exist in an infinitely hot and infinitely dense but unexpanding state for any period of time. It is an idea I see promoted by some but has no justification in the field of physics.
Anyone here promoting the singularity as a physical reality is definitely in the minority. I don't think there can be many here with this particular misconception. I haven't noticed anyone in this thread or the Big Bang Theory Supports a Belief in the Universe Designer or Creator God thread advocating this idea.
The fallacy:
Once the singularity came into existence, it began to expand. This understanding forms the premise and leads inexorably to the idea of a creator who is outside of spacetime.
Your facts, as near as anyone here can tell, do not lead to your conclusions.
Your conclusion also leads to an infinite regression. Who created the creator? And who created the creator's creator? And who created the creator's creator's creator?
--Percy

This message is a reply to:
 Message 163 by designtheorist, posted 11-20-2011 1:47 PM designtheorist has not replied

  
Percy
Member
Posts: 22499
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.9


Message 190 of 344 (641661)
11-21-2011 9:20 AM
Reply to: Message 189 by PaulK
11-21-2011 9:04 AM


Re: Reply to Granny Magda
I think he means Hoyle, not Hawking.
--Percy

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 Message 189 by PaulK, posted 11-21-2011 9:04 AM PaulK has not replied

Replies to this message:
 Message 192 by NoNukes, posted 11-21-2011 9:48 AM Percy has seen this message but not replied
 Message 226 by designtheorist, posted 11-22-2011 5:15 AM Percy has replied

  
Percy
Member
Posts: 22499
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.9


Message 191 of 344 (641662)
11-21-2011 9:41 AM
Reply to: Message 187 by designtheorist
11-21-2011 8:52 AM


Re: Reply to Granny Magda
designtheorist writes:
Even Hawking admitted the big bang "smacked of divine intervention"...
I think you mean Hoyle.
I was arguing for both compatibility and support but not for proof.
No one here would ask for proof, only support, assuming by that you mean scientific support in the form of evidence.
If you're merely trying to show atheists that their views are not shared by some prominent scientists then I think they already know that. But it would be a fallacy to argue that because some prominent scientists believe the Big Bang hints at the supernatural that it imbues the idea with greater credibility. You have your list of scientists that lean toward your view, but atheists could offer a different list of scientists that lean their way, and where does that leave you? Scientifically you're no better off than you were before.
Treating what certain scientists believe as if it were evidence for what might be true about the universe is a fallacy. That's why your quotes of famous scientists who lean your way will not convince anyone from the other side. You're not likely to find those who disagree with you quoting scientists who lean the other way, because they understand it is a fallacy.
It is the evidence that persuades scientists to lean one way or the other that's important.
--Percy

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 Message 187 by designtheorist, posted 11-21-2011 8:52 AM designtheorist has not replied

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 Message 193 by Modulous, posted 11-21-2011 10:28 AM Percy has seen this message but not replied

  
Percy
Member
Posts: 22499
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.9


Message 235 of 344 (641748)
11-22-2011 8:11 AM
Reply to: Message 226 by designtheorist
11-22-2011 5:15 AM


Re: Reply to Percy
designtheorist writes:
I do not mean Hoyle. I mean Hawking. Perhaps you missed my summation on Message 314 in which I quoted extensively from Hawking's book A Brief History of Time.
As others have already informed you (and so I don't understand why you're replying like this instead of acknowledging error), Hawking does not reject the Big Bang. Hawking never "turned his back on the Big Bang." The only world-famous physicist fitting that description who springs readily to mind is Hoyle.
Hawking accepts the rather obvious evidence that the universe was once small and very dense and experienced a period of very rapid expansion early in its history. Hawker never rejected the Big Bang. Eddington never left Quakerism. And what certain scientists think is not evidence of what is true about nature.
No one replied to your error about Hawking in your message Message 314 because the thread was in summation mode, and no replies are permitted in that mode.
You continue to misunderstand the fallacy of argument from authority. It isn't citing an authority that is the fallacy. It is claiming that something is so because the authority says it is so.
What's important is the evidence that convinced an authority something is so, because then others can examine the evidence to see if it is convincing to them, too.
--Percy

This message is a reply to:
 Message 226 by designtheorist, posted 11-22-2011 5:15 AM designtheorist has replied

Replies to this message:
 Message 244 by designtheorist, posted 11-22-2011 10:33 AM Percy has replied

  
Percy
Member
Posts: 22499
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.9


Message 255 of 344 (641782)
11-22-2011 11:33 AM
Reply to: Message 244 by designtheorist
11-22-2011 10:33 AM


Re: Reply to Percy
Hi DesignTheorist,
Hawking "turned his back" on the singularity, not on the Big Bang. The very quote you provided has Hawking saying that there's no singularity at the beginning of the universe, not that there's no Big Bang. Hawking is saying that the Big Bang didn't begin with a singularity, not that it didn't happen. For him or any physicist to conclude that the Big Bang didn't happen would require mountains of evidence to just evaporate.
Maybe up until around the mid-twentieth century it was not uncommon for physicists to think of the singularity as real, but at least today it is a very uncommon view. I think most physicists pretty much "turned their back" on the singularity as real a long time ago.
Like others I'm a bit sceptical that you've actually read Hawking's book. You come across as being completely unfamiliar with what Hawking actually believes. Instead of taking the clear meaning of his words you seem to be trying to force some other alien meaning upon them. Usually the people behaving in this puzzling manner are following the lead of some creationist website. Like maybe a creationist website similar to one that told you Eddington was an atheist.
Note that we have descended into discussing what people meant instead of what the evidence says, and since misinterpreting the simple English of popular-press books by famous physicists with debilitating diseases is not a logical fallacy, we're not even on-topic.
--Percy

This message is a reply to:
 Message 244 by designtheorist, posted 11-22-2011 10:33 AM designtheorist has replied

Replies to this message:
 Message 258 by designtheorist, posted 11-22-2011 11:56 AM Percy has replied

  
Percy
Member
Posts: 22499
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.9


Message 287 of 344 (641824)
11-22-2011 3:28 PM
Reply to: Message 258 by designtheorist
11-22-2011 11:56 AM


Re: Reply to Percy
Hi DesignTheorist,
Well, the Big Bang isn't the topic, so I guess I'll just say that you have some interesting interpretations and leave it at that.
I only joined this thread to point out that you misunderstand the fallacy of argument from authority. Citing an authority isn't a fallacy. But claiming something is so because an authority says it is so, that's a fallacy.
--Percy

This message is a reply to:
 Message 258 by designtheorist, posted 11-22-2011 11:56 AM designtheorist has not replied

  
Percy
Member
Posts: 22499
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.9


Message 322 of 344 (642268)
11-27-2011 6:31 AM
Reply to: Message 318 by designtheorist
11-27-2011 1:32 AM


Re: How to spot circular reasoning
designtheoriest writes:
The problem is the author has framed the argument in a way to philosophically exclude the possibility of something or someone existing outside of time and matter.
I think "error of omission" is a factual error rather than a logical fallacy.
--Percy

This message is a reply to:
 Message 318 by designtheorist, posted 11-27-2011 1:32 AM designtheorist has replied

Replies to this message:
 Message 323 by designtheorist, posted 11-28-2011 12:17 AM Percy has seen this message but not replied

  
Percy
Member
Posts: 22499
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.9


Message 340 of 344 (642535)
11-29-2011 4:14 PM
Reply to: Message 338 by designtheorist
11-29-2011 2:33 PM


Re: Reply to Trixie - #301
Hi DesignTheorist,
A few things.
You don't need to use message subtitles to keep track of which message is a reply to who. The board software does that for you. Each message contains a link to the message it is a reply to, and a list of links to all the replies.
By not taking the quotes I provided in their totality, you have twisted my presentation of the facts.
You seem to be doing a good job of not taking the "totality" of what other people have provided about Hawking's thinking. Your interpretation of what Hawking believes is based upon quotes you yourself chose and also upon the absence of other quotes you've apparently decided not to consider. Interpretations are not facts, and Hawking isn't the topic of this thread anyway.
The topic is logical fallacies.
--Percy

This message is a reply to:
 Message 338 by designtheorist, posted 11-29-2011 2:33 PM designtheorist has not replied

  
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