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	<title>Comments on: Open Thread</title>
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	<link>http://www.overcomingbias.com/2009/06/open-thread.html</link>
	<description>Overcoming Bias is economist Robin Hanson’s blog, on honesty, signaling, disagreement, forecasting, and the far future.</description>
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	<item>
		<title>By: Foxnewbee</title>
		<link>http://www.overcomingbias.com/2009/06/open-thread.html#comment-447649</link>
		<dc:creator>Foxnewbee</dc:creator>
		<pubDate>Sun, 16 May 2010 09:00:45 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=18514#comment-447649</guid>
		<description>Excuse me. Does anybody understand how to find true   Expert Avisor from fraudulent and a true     signal from fake? big thanks</description>
		<content:encoded><![CDATA[<p>Excuse me. Does anybody understand how to find true   Expert Avisor from fraudulent and a true     signal from fake? big thanks</p>
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	<item>
		<title>By: hoNZooffoutsini</title>
		<link>http://www.overcomingbias.com/2009/06/open-thread.html#comment-438676</link>
		<dc:creator>hoNZooffoutsini</dc:creator>
		<pubDate>Fri, 18 Dec 2009 12:00:36 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=18514#comment-438676</guid>
		<description>...please where can I buy a unicorn?</description>
		<content:encoded><![CDATA[<p>&#8230;please where can I buy a unicorn?</p>
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	<item>
		<title>By: Richard Pointer</title>
		<link>http://www.overcomingbias.com/2009/06/open-thread.html#comment-430488</link>
		<dc:creator>Richard Pointer</dc:creator>
		<pubDate>Wed, 22 Jul 2009 16:12:59 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=18514#comment-430488</guid>
		<description>http://journals.cambridge.org/action/displayAbstract?aid=5962352

Robin,

You might find this interesting. Can you comment?</description>
		<content:encoded><![CDATA[<p><a href="http://journals.cambridge.org/action/displayAbstract?aid=5962352" rel="nofollow">http://journals.cambridge.org/action/displayAbstract?aid=5962352</a></p>
<p>Robin,</p>
<p>You might find this interesting. Can you comment?</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: mjgeddes</title>
		<link>http://www.overcomingbias.com/2009/06/open-thread.html#comment-428986</link>
		<dc:creator>mjgeddes</dc:creator>
		<pubDate>Wed, 17 Jun 2009 10:34:54 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=18514#comment-428986</guid>
		<description>Last post from me, will post now instead of next month.  I tripped on something and thought of this whilst tying my shoe-laces.   Read this:

---

&#039;Reflection Solved&#039;
by Marc Geddes

Abstract

A change in the goal-system of an agent is equivalent to a change in the way in which knowledge is represented by the agent.  It follows that it is equivalent to a change in the complexity of the program representing the agent.  Thus we require a method of comparing the complexity of strings in order to ensure that relevant program structure is preserved with state transitions over time.  Standard probability theory cannot be used because; (1) Consistent probability calculations require implicit universal generalizations, but a universal measure of the complexity of  finite strings is a logical impossibility (fromGodel, Lob theorems); and (2) Standard measures of complexity (e.g Kolmogorov complexity) from information theory deal only with one aspect of information (i.e.  Shannon information), and fail to consider semantic content. The solution must resolve both these problems.

Regarding (2) the solution is as follows:, information theory is generalized to deal with the actual meaning of information  (i.e . the semantics of Shannon information) .The generalized definition of the complexity of a finite string is based on the conceptual clustering of semantic categories specifying the knowledge a string represents.  The generation of hierarchical category structures representing the knowledge in a string is also associated with a generalization of Occam’s razor.   The justification for Occam’s razor and the problem of priors in induction is resolved by defining ‘utility’ in terms of ‘aesthetic goodness’, which is the degree of integration of different concept hierarchies.  This considers the process through which a theory is generated;  it is a form of process-oriented evaluation. 

Regarding (1); The Godel limitation is bypassed by using relative complexity measures of pairs of strings .  This requires generalizing standard Bayesian induction ; in fact induction is merely a special case of a new form of case-based reasoning (analogical reasoning) . Analogical reasoning can be formalized by utilizing concepts from category theory to implement prototype theory, where mathematical categories are regarded as semantic categories. Semantic concepts representing the knowledge encoded in strings can be considered to reside in multi-dimensional feature space, and this enables mappings between concepts; such mappings are defined by functors representing conceptual distance; this gives a formal definition of an analogy.  The reason this overcomes the Godel limitation and is more general than induction is because it always enables relative comparisons of the complexity of pairs of strings. This is because case-based reasoning depends only on the specific details on the strings being compared, whereas induction makes implicit universal generalizations, and thus fails.    

To summarize:  Induction is shown to be merely a special case of a new type of generalized case-based (analogical) reasoning. Concepts from category theory enable a formal definition of an analogy, which is based on the notion of conceptual distance between concepts. The notion of complexity is generalized to deal with semantics, where the information in a string is considered to be a concept hierarchy. This enables comparisons between pairs of strings; relations between strings are defined in terms of the mappings between concepts, and the mapping is evaluated in terms of its aesthetic goodness.  Godelian limitations are overcome, since analogical reasoning always enables a comparison of the relative complexity between any two finite strings.  Further the new metric of aesthetic goodness ensures that the relevant program structure is preserved between state transitions and thus maintains a stable goal system.  

---

Cheers</description>
		<content:encoded><![CDATA[<p>Last post from me, will post now instead of next month.  I tripped on something and thought of this whilst tying my shoe-laces.   Read this:</p>
<p>&#8212;</p>
<p>&#8216;Reflection Solved&#8217;<br />
by Marc Geddes</p>
<p>Abstract</p>
<p>A change in the goal-system of an agent is equivalent to a change in the way in which knowledge is represented by the agent.  It follows that it is equivalent to a change in the complexity of the program representing the agent.  Thus we require a method of comparing the complexity of strings in order to ensure that relevant program structure is preserved with state transitions over time.  Standard probability theory cannot be used because; (1) Consistent probability calculations require implicit universal generalizations, but a universal measure of the complexity of  finite strings is a logical impossibility (fromGodel, Lob theorems); and (2) Standard measures of complexity (e.g Kolmogorov complexity) from information theory deal only with one aspect of information (i.e.  Shannon information), and fail to consider semantic content. The solution must resolve both these problems.</p>
<p>Regarding (2) the solution is as follows:, information theory is generalized to deal with the actual meaning of information  (i.e . the semantics of Shannon information) .The generalized definition of the complexity of a finite string is based on the conceptual clustering of semantic categories specifying the knowledge a string represents.  The generation of hierarchical category structures representing the knowledge in a string is also associated with a generalization of Occam’s razor.   The justification for Occam’s razor and the problem of priors in induction is resolved by defining ‘utility’ in terms of ‘aesthetic goodness’, which is the degree of integration of different concept hierarchies.  This considers the process through which a theory is generated;  it is a form of process-oriented evaluation. </p>
<p>Regarding (1); The Godel limitation is bypassed by using relative complexity measures of pairs of strings .  This requires generalizing standard Bayesian induction ; in fact induction is merely a special case of a new form of case-based reasoning (analogical reasoning) . Analogical reasoning can be formalized by utilizing concepts from category theory to implement prototype theory, where mathematical categories are regarded as semantic categories. Semantic concepts representing the knowledge encoded in strings can be considered to reside in multi-dimensional feature space, and this enables mappings between concepts; such mappings are defined by functors representing conceptual distance; this gives a formal definition of an analogy.  The reason this overcomes the Godel limitation and is more general than induction is because it always enables relative comparisons of the complexity of pairs of strings. This is because case-based reasoning depends only on the specific details on the strings being compared, whereas induction makes implicit universal generalizations, and thus fails.    </p>
<p>To summarize:  Induction is shown to be merely a special case of a new type of generalized case-based (analogical) reasoning. Concepts from category theory enable a formal definition of an analogy, which is based on the notion of conceptual distance between concepts. The notion of complexity is generalized to deal with semantics, where the information in a string is considered to be a concept hierarchy. This enables comparisons between pairs of strings; relations between strings are defined in terms of the mappings between concepts, and the mapping is evaluated in terms of its aesthetic goodness.  Godelian limitations are overcome, since analogical reasoning always enables a comparison of the relative complexity between any two finite strings.  Further the new metric of aesthetic goodness ensures that the relevant program structure is preserved between state transitions and thus maintains a stable goal system.  </p>
<p>&#8212;</p>
<p>Cheers</p>
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	<item>
		<title>By: John</title>
		<link>http://www.overcomingbias.com/2009/06/open-thread.html#comment-428975</link>
		<dc:creator>John</dc:creator>
		<pubDate>Tue, 16 Jun 2009 17:40:51 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=18514#comment-428975</guid>
		<description>Sorry! The website I am talking about is &lt;a href=&quot;http://hunch.com&quot; rel=&quot;nofollow&quot;&gt;hunch.com&lt;/a&gt;</description>
		<content:encoded><![CDATA[<p>Sorry! The website I am talking about is <a href="http://hunch.com" rel="nofollow">hunch.com</a></p>
]]></content:encoded>
	</item>
	<item>
		<title>By: John</title>
		<link>http://www.overcomingbias.com/2009/06/open-thread.html#comment-428962</link>
		<dc:creator>John</dc:creator>
		<pubDate>Tue, 16 Jun 2009 05:42:06 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=18514#comment-428962</guid>
		<description>So, some of you might have heard of &lt;a href=&quot;hunch.com&quot; rel=&quot;nofollow&quot;&gt;.  The goal of the site is to help you make decisions. 

My question is, would such a scheme really help you to make rational decisions? Will it suffer from confirmational bias of sorts? Is it possible that your decisions are already made and you answer the questions in a way to confirm the decision you made/need/want?</description>
		<content:encoded><![CDATA[<p>So, some of you might have heard of <a href="hunch.com" rel="nofollow">.  The goal of the site is to help you make decisions. </p>
<p>My question is, would such a scheme really help you to make rational decisions? Will it suffer from confirmational bias of sorts? Is it possible that your decisions are already made and you answer the questions in a way to confirm the decision you made/need/want?</a></p>
]]></content:encoded>
	</item>
	<item>
		<title>By: mjgeddes</title>
		<link>http://www.overcomingbias.com/2009/06/open-thread.html#comment-428810</link>
		<dc:creator>mjgeddes</dc:creator>
		<pubDate>Thu, 11 Jun 2009 09:40:37 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=18514#comment-428810</guid>
		<description>Three interesting points to consider,  three links:

(1) Ben Goertzel has finally &#039;gone strange&#039;, check it out:
&lt;a href=&quot;http://cosmistmanifesto.blogspot.com/&quot; rel=&quot;nofollow&quot;&gt;Ben going strange?&lt;/a&gt;  


(2) What do economists think of the idea of totally abolishing all income  taxes (and in fact all other taxes as well), and instead just having a single value tax on land and natural resources?  

Check out:
&lt;a href=&quot;http://en.wikipedia.org/wiki/Georgism&quot; rel=&quot;nofollow&quot;&gt;Georgism&lt;/a&gt;

(3)  Good post on the everything-list about how many high-IQ-types fall into an intellectual hole:

&quot;They  have an exaggerated need to be &quot;right&quot; about everything all the time.   They are usually unable to think about anything from a perspective  other than the one they long ago decided was the &quot;right&quot; perspective. They don&#039;t know how to listen to others. They are usually unable to   restructure the available information in such a way that they can draw  new perspectives from it.&quot;

Check out:

&lt;a href=&quot;http://groups.google.com/group/everything-list/browse_thread/thread/77bf2caefac9d23c&quot; rel=&quot;nofollow&quot;&gt;IQ Trap&lt;/a&gt;</description>
		<content:encoded><![CDATA[<p>Three interesting points to consider,  three links:</p>
<p>(1) Ben Goertzel has finally &#8216;gone strange&#8217;, check it out:<br />
<a href="http://cosmistmanifesto.blogspot.com/" rel="nofollow">Ben going strange?</a>  </p>
<p>(2) What do economists think of the idea of totally abolishing all income  taxes (and in fact all other taxes as well), and instead just having a single value tax on land and natural resources?  </p>
<p>Check out:<br />
<a href="http://en.wikipedia.org/wiki/Georgism" rel="nofollow">Georgism</a></p>
<p>(3)  Good post on the everything-list about how many high-IQ-types fall into an intellectual hole:</p>
<p>&#8220;They  have an exaggerated need to be &#8220;right&#8221; about everything all the time.   They are usually unable to think about anything from a perspective  other than the one they long ago decided was the &#8220;right&#8221; perspective. They don&#8217;t know how to listen to others. They are usually unable to   restructure the available information in such a way that they can draw  new perspectives from it.&#8221;</p>
<p>Check out:</p>
<p><a href="http://groups.google.com/group/everything-list/browse_thread/thread/77bf2caefac9d23c" rel="nofollow">IQ Trap</a></p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Natalia</title>
		<link>http://www.overcomingbias.com/2009/06/open-thread.html#comment-425022</link>
		<dc:creator>Natalia</dc:creator>
		<pubDate>Wed, 03 Jun 2009 03:12:28 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=18514#comment-425022</guid>
		<description>Hi, how can I contact you?

I want to start, a list of philosophy BLOGS.  A small presentation of the thing, a library or address book.  But one question I don&#039;t know is, how to contact people through blogs, I&#039;m not familiar with this medium.

If time permits, I want you to make a post here,

http://dissidentphilosophy.lifediscussion.net/conversation-f8/

It will get stickied and start a list of philosophy blogs.  You could write  a small intro too, like &quot;Here is a index and library of PHILOSOPHY blogs ....&quot;

Already an index of BBS is here,
 http://dissidentphilosophy.lifediscussion.net/conversation-f8/the-community-of-ephilosophers-philosophy-bbs-sites-t9.htm

Kind regards,

- Niki</description>
		<content:encoded><![CDATA[<p>Hi, how can I contact you?</p>
<p>I want to start, a list of philosophy BLOGS.  A small presentation of the thing, a library or address book.  But one question I don&#8217;t know is, how to contact people through blogs, I&#8217;m not familiar with this medium.</p>
<p>If time permits, I want you to make a post here,</p>
<p><a href="http://dissidentphilosophy.lifediscussion.net/conversation-f8/" rel="nofollow">http://dissidentphilosophy.lifediscussion.net/conversation-f8/</a></p>
<p>It will get stickied and start a list of philosophy blogs.  You could write  a small intro too, like &#8220;Here is a index and library of PHILOSOPHY blogs &#8230;.&#8221;</p>
<p>Already an index of BBS is here,<br />
 <a href="http://dissidentphilosophy.lifediscussion.net/conversation-f8/the-community-of-ephilosophers-philosophy-bbs-sites-t9.htm" rel="nofollow">http://dissidentphilosophy.lifediscussion.net/conversation-f8/the-community-of-ephilosophers-philosophy-bbs-sites-t9.htm</a></p>
<p>Kind regards,</p>
<p>- Niki</p>
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	<item>
		<title>By: Michael Bishop</title>
		<link>http://www.overcomingbias.com/2009/06/open-thread.html#comment-425014</link>
		<dc:creator>Michael Bishop</dc:creator>
		<pubDate>Tue, 02 Jun 2009 23:24:25 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=18514#comment-425014</guid>
		<description>Is anybody aware of an academic course which tries to teach OB / LW type stuff? I might someday have the opportunity to teach such a class.

Has anyone made and organized a list of important posts that could serve as the rough draft for a syllabus?</description>
		<content:encoded><![CDATA[<p>Is anybody aware of an academic course which tries to teach OB / LW type stuff? I might someday have the opportunity to teach such a class.</p>
<p>Has anyone made and organized a list of important posts that could serve as the rough draft for a syllabus?</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: fenn</title>
		<link>http://www.overcomingbias.com/2009/06/open-thread.html#comment-425010</link>
		<dc:creator>fenn</dc:creator>
		<pubDate>Tue, 02 Jun 2009 21:40:13 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=18514#comment-425010</guid>
		<description>I appreciate your answer to the many worlds question.  

I have to resort to appeals to authority on that topic, and it is good to have the opinion of someone with a background in physics, but also cognizant of biases.</description>
		<content:encoded><![CDATA[<p>I appreciate your answer to the many worlds question.  </p>
<p>I have to resort to appeals to authority on that topic, and it is good to have the opinion of someone with a background in physics, but also cognizant of biases.</p>
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