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what is the evil demon thought experiment and what was its purpose?

 
 
Reply Tue 19 Oct, 2010 08:11 am
what is the evil demon thought experiment and what was its purpose?
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fresco
 
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Reply Tue 19 Oct, 2010 08:41 am
@ball of wax,
http://en.wikipedia.org/wiki/Demon_(thought_experiment)
http://www.iep.utm.edu/evil-new/
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boomerang
 
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Reply Tue 19 Oct, 2010 08:42 am
Quote:
In thought experiments philosophers occasionally imagine entities with special abilities in order to pose tough intellectual challenges or to highlight apparent paradoxes. Examples include:

Descartes’ malicious demon – Cartesian skepticism (also called methodological skepticism) advocates the doubting of all things which cannot be justified through logic. Descartes uses three arguments to cast doubt on our ability to objectively know: The dream argument, the deceiving God argument, and the malicious demon argument. [1] Since our senses cannot put us in contact with external objects themselves, but only with our mental images of such objects, we can have no absolute certainty that anything exists in the external world. In the evil demon argument Descartes proposes an entity who is capable of deceiving us to such a degree that we have reason to doubt the totality of what our senses tell us.
Laplace's demon – A hypothetical all-knowing entity (later called "Laplace's Demon") who knows the precise location and momentum of every atom in the universe, and therefore could use Newton's laws to reveal the entire course of cosmic events, past and future. Based upon the philosophical proposition of causal determinism. (See also causality).
Maxwell's demon – A demon able to distinguish between fast and slow moving molecules. If this demon only let fast moving molecules through a trapdoor to a container, the temperature inside the container would increase without any work being applied. Such a scenario would violate the second law of thermodynamics (see also Epicurean paradox#Epicurus).
Morton's demon – A demon who stands at the gateway of a person's senses and lets in facts that agree with that person's beliefs while deflecting those which do not. Used to explain the phenomenon of confirmation bias.


http://en.wikipedia.org/wiki/Demon_(thought_experiment)
Setanta
 
  2  
Reply Tue 19 Oct, 2010 08:45 am
Your link won't work, Fresco, unless you embed it.

Demon Thought Experiment
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DrewDad
 
  1  
Reply Tue 19 Oct, 2010 10:03 am
@boomerang,
boomerang wrote:
Descartes’ malicious demon –...
Since our senses cannot put us in contact with external objects themselves, but only with our mental images of such objects, we can have no absolute certainty that anything exists in the external world. In the evil demon argument Descartes proposes an entity who is capable of deceiving us to such a degree that we have reason to doubt the totality of what our senses tell us.

While I knew that this theme has been examined over and over again in science fiction, I had no idea it went back to Descartes.
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north
 
  1  
Reply Tue 19 Oct, 2010 08:04 pm

how to defeat god..
to undermine his opposite god

by using we Humans as the medium

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