Heaving Dead Cats
 
Skeptical Freethought Atheist Musings to Dispel Ignorance and Enlighten the Mind
 
 

October

Posted at October 29, 2008 by Neece

Argumentum Ad ignorantiam means the Argument from Ignorance. It basically states that a specific belief is true because we don’t know that it isn’t true. This logical fallacy can also be called the Negative Proof Argument, or Appeal to Ignorance.

This is Part 4 in a series I introduced the other day about Logical Fallacies, Misconceptions, False Beliefs. We’re going to go through one fallacy at a time. There are about 20 main fallacies altogether. I’m going to try to explain them with examples then find ways to help you refute those arguments when they occur.

James stated it quite perfectly in the comments of our last fallacy lesson:

Atheist: “You cannot prove that God exists.”
Theist: “Oh yeah? Well, you cannot prove that God DOESN’T exist!”

Of course this brings up the rule: The burden of proof lies on the claimant. Basically, if you state that god exists, the burden of proof lies on you.

Example: You: The Big Bang is so amazing. It all seems so lucky that life arose through chance and happenstance and evolution in the primordial goo.
Opponent: Too amazing. I can’t see how such a thing could happen. Therefore god did it. That’s the only explanation that gives me all the answers.

Example: We know so little about the human brain. We can’t prove that ESP doesn’t exist, therefore it is real.

Example: Those funny lights in the sky don’t look like anything I can recognize as a plane or helicopter, therefore it’s an alien spacecraft.

This logical fallacy is quite common, in my experience. Now, how do you refute it?

  • First, tell your opponent that he or she has committed a logical fallacy. I find that this is a good way to start, by stating the logical error.
  • Second, tell them the burden of proof lies on the claimant. Also, extraordinary claims require extraordinary proof. So claiming something such as ESP, an invisible man in the sky or alien visitation all require real evidence that can be proven and replicated and follow all the rules of good scientific research. The scientific research and math has been done over and over and validated regarding the Big Bang. That’s pretty much well established. And the way it works, too, for such things, is that they are still working on the Big Bang. That’s real science for you. That’s how it really works.
  • Third, I think I’d mention that science never gives up, never stops searching for answers and even more questions. Whereas creationism and believing in fairy tales just gives up at the first step, as soon as thinking is required.

For this lesson, I’m using 4 resources:

This is a series on Logic, Logical Thinking and Dealing with Logical Fallacies in an Argument. Visit the Logical Fallacies page to see them all.


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COMMENTS

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  1.   James said:

    October 30, 2008 @ 1:01 am

    Yeah, that must be it. I love it when I state things perfectly :)

    [Reply to This Comment]

  2.   Neece said:

    October 30, 2008 @ 2:05 am

    hee hee… thanks James. :D

    [Reply to This Comment]

 
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