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	<title>Comments on: Duff on Susskind</title>
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	<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/</link>
	<description>Random samplings from a universe of ideas.</description>
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		<title>By: Is our universe natural? &#124; Cosmic Variance</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8258</link>
		<dc:creator>Is our universe natural? &#124; Cosmic Variance</dc:creator>
		<pubDate>Wed, 28 Jun 2006 03:25:05 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8258</guid>
		<description>[...] Hey, has anyone heard about this string theory landscape business, and the anthropic principle, and some sort of controversy? Hmm, I guess they have. Perhaps enough that whatever needs to be said has already been thoroughly hashed out. [...]</description>
		<content:encoded><![CDATA[<p>[...] Hey, has anyone heard about this string theory landscape business, and the anthropic principle, and some sort of controversy? Hmm, I guess they have. Perhaps enough that whatever needs to be said has already been thoroughly hashed out. [...]</p>
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		<title>By: LuboÅ¡ Motl's reference frame</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8257</link>
		<dc:creator>LuboÅ¡ Motl's reference frame</dc:creator>
		<pubDate>Tue, 14 Feb 2006 13:20:55 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8257</guid>
		<description>&lt;strong&gt;Cosmological constant seesaw preprint&lt;/strong&gt;

The cosmological constant seesaw mechanism is now described in a preprint.</description>
		<content:encoded><![CDATA[<p><strong>Cosmological constant seesaw preprint</strong></p>
<p>The cosmological constant seesaw mechanism is now described in a preprint.</p>
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		<title>By: Plato</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8202</link>
		<dc:creator>Plato</dc:creator>
		<pubDate>Thu, 08 Dec 2005 06:49:18 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8202</guid>
		<description>Just some thoughts on CSL-1 cosmic string issue and the inception of it from my layman perspective.

&lt;a href=&quot;http://eskesthai.blogspot.com/2005/12/xtra-dimensions.html&quot; rel=&quot;nofollow&quot;&gt;&lt;blockquote&gt;CSL-1 cosmic string gravitational lens and 2 more, with many views of the Capodimonte Deep Field OACDF2 with subtle background features, similar to recent Millennium Simulation of evolution of structure in our Universe. Identical stereo pairs are introduced.&lt;/blockquote&gt;&lt;/a&gt;</description>
		<content:encoded><![CDATA[<p>Just some thoughts on CSL-1 cosmic string issue and the inception of it from my layman perspective.</p>
<p><a href="http://eskesthai.blogspot.com/2005/12/xtra-dimensions.html" rel="nofollow"><br />
<blockquote>CSL-1 cosmic string gravitational lens and 2 more, with many views of the Capodimonte Deep Field OACDF2 with subtle background features, similar to recent Millennium Simulation of evolution of structure in our Universe. Identical stereo pairs are introduced.</p></blockquote>
<p></a></p>
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		<title>By: Not Even Wrong &#187; Blog Archive &#187; The Cosmic Landscape</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8203</link>
		<dc:creator>Not Even Wrong &#187; Blog Archive &#187; The Cosmic Landscape</dc:creator>
		<pubDate>Thu, 08 Dec 2005 01:06:26 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8203</guid>
		<description>[...] In coming weeks, it will be interesting to see how the physics community deals with the challenge presented by Susskind&#8217;s publicity campaign for changing how theoretical physics is done. So far the initial signs are depressing. Michael Duff&#8217;s review in Physics World just more or less respectfully repeats Susskind&#8217;s argument, not challenging it in any way. In a review of the Duff review, Clifford Johnson answers the question of whether this sort of thing is still science with &#8220;I have not yet made up my own mind whether it sits well with me or not...&#8221; He makes a distinction between postdiction and prediction that I don&#8217;t quite agree with (if Susskind&#8217;s framework accurately postdicted even a few of the known Standard Model parameters, I&#8217;d be a believer). He takes the usual stance favored by most sensible string theorists who want to keep working on the theory that they don&#8217;t understand the theory well enough yet to know whether they are stuck with the Landscape or not. Finally he thinks there&#8217;s a chance that maybe the structure of the Landscape is such that once one anthropically fixed the CC and some other constants, the remaining set of vacua would actually predict something. I don&#8217;t see the slightest evidence for this, but it&#8217;s the argument many are now using to justify exploring the Landscape and surrounding swampland instead of giving up on string theory and trying to find a better idea. [...]</description>
		<content:encoded><![CDATA[<p>[...] In coming weeks, it will be interesting to see how the physics community deals with the challenge presented by Susskind&#8217;s publicity campaign for changing how theoretical physics is done. So far the initial signs are depressing. Michael Duff&#8217;s review in Physics World just more or less respectfully repeats Susskind&#8217;s argument, not challenging it in any way. In a review of the Duff review, Clifford Johnson answers the question of whether this sort of thing is still science with &#8220;I have not yet made up my own mind whether it sits well with me or not&#8230;&#8221; He makes a distinction between postdiction and prediction that I don&#8217;t quite agree with (if Susskind&#8217;s framework accurately postdicted even a few of the known Standard Model parameters, I&#8217;d be a believer). He takes the usual stance favored by most sensible string theorists who want to keep working on the theory that they don&#8217;t understand the theory well enough yet to know whether they are stuck with the Landscape or not. Finally he thinks there&#8217;s a chance that maybe the structure of the Landscape is such that once one anthropically fixed the CC and some other constants, the remaining set of vacua would actually predict something. I don&#8217;t see the slightest evidence for this, but it&#8217;s the argument many are now using to justify exploring the Landscape and surrounding swampland instead of giving up on string theory and trying to find a better idea. [...]</p>
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		<title>By: island</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8256</link>
		<dc:creator>island</dc:creator>
		<pubDate>Wed, 07 Dec 2005 20:09:23 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8256</guid>
		<description>Anthropic structuring is perpetually inherent is the point, Elliot, I think you&#039;ve missed that LaPlace&#039;s demon is valid in the finite bound closed spherical universe where &quot;god&quot; doesn&#039;t throw dice.  We represent a cumulative emergence of something that was determined at the get-go by the constraints that were convolved forward into the matter field by our big bang.  The stucturing is perpetually inherent, in other words.

Roughly...

The EWAP, (entropic weak AP), is about environmental enabling:

1) The observed values of all physical and cosmological quantities are not variable, but are fixed by the requirement that there exist sites where carbon-based life will arise and evolve when the universe is old enough for the cumulative gravitational effect to require us to do our thing.


The ESAP is about... why:

There exists one universe that has perpetually inherent stucturing, with the goal of generating and sustaining disspative structures that are capable of enabling a universal scale evolutionary leap ever closer to absolute symmetry.


The EFAP is...

1) Who cares, ours is a blue colar universe, not an academically derived idealization where intelligent information processing is merely an efficiency enabling mechanism.

2) There is a weird implication for some kind of universal self-awareness when the skies light up simultaneously... *que erie music*... I&#039;d hate to read too much into that!

and...

Right-on, Dissident!

... or can we ignore direct observational evidence that the Copernican Cosmological extension is superceded by something that&#039;s more biocentric in nature?...

http://www.flickr.com/photos/rmforall/18135101/in/set-435988/

http://www.flickr.com/photos/rmforall/18135102/in/set-435988/

... and that Einstein was right all along about higher structuring in nature, because the most natural extension of his theory with a cosmological constant is not unstable after all, because matter generation in this model causes the previously described effects which hold the universe flat and stable as it expands?

After all, the creationists might twist it into some kind of supernatural god theory, donchano?

http://www.arxiv.org/abs/astro-ph/0508047/</description>
		<content:encoded><![CDATA[<p>Anthropic structuring is perpetually inherent is the point, Elliot, I think you&#8217;ve missed that LaPlace&#8217;s demon is valid in the finite bound closed spherical universe where &#8220;god&#8221; doesn&#8217;t throw dice.  We represent a cumulative emergence of something that was determined at the get-go by the constraints that were convolved forward into the matter field by our big bang.  The stucturing is perpetually inherent, in other words.</p>
<p>Roughly&#8230;</p>
<p>The EWAP, (entropic weak AP), is about environmental enabling:</p>
<p>1) The observed values of all physical and cosmological quantities are not variable, but are fixed by the requirement that there exist sites where carbon-based life will arise and evolve when the universe is old enough for the cumulative gravitational effect to require us to do our thing.</p>
<p>The ESAP is about&#8230; why:</p>
<p>There exists one universe that has perpetually inherent stucturing, with the goal of generating and sustaining disspative structures that are capable of enabling a universal scale evolutionary leap ever closer to absolute symmetry.</p>
<p>The EFAP is&#8230;</p>
<p>1) Who cares, ours is a blue colar universe, not an academically derived idealization where intelligent information processing is merely an efficiency enabling mechanism.</p>
<p>2) There is a weird implication for some kind of universal self-awareness when the skies light up simultaneously&#8230; *que erie music*&#8230; I&#8217;d hate to read too much into that!</p>
<p>and&#8230;</p>
<p>Right-on, Dissident!</p>
<p>&#8230; or can we ignore direct observational evidence that the Copernican Cosmological extension is superceded by something that&#8217;s more biocentric in nature?&#8230;</p>
<p><a href="http://www.flickr.com/photos/rmforall/18135101/in/set-435988/" rel="nofollow">http://www.flickr.com/photos/rmforall/18135101/in/set-435988/</a></p>
<p><a href="http://www.flickr.com/photos/rmforall/18135102/in/set-435988/" rel="nofollow">http://www.flickr.com/photos/rmforall/18135102/in/set-435988/</a></p>
<p>&#8230; and that Einstein was right all along about higher structuring in nature, because the most natural extension of his theory with a cosmological constant is not unstable after all, because matter generation in this model causes the previously described effects which hold the universe flat and stable as it expands?</p>
<p>After all, the creationists might twist it into some kind of supernatural god theory, donchano?</p>
<p><a href="http://www.arxiv.org/abs/astro-ph/0508047/" rel="nofollow">http://www.arxiv.org/abs/astro-ph/0508047/</a></p>
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		<title>By: Dissident</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8255</link>
		<dc:creator>Dissident</dc:creator>
		<pubDate>Wed, 07 Dec 2005 18:01:40 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8255</guid>
		<description>OK, then I guess the only way this could become really interesting is if the WMAP people came out and said their data is in conflict with current limits - thus explaining the long delay in the official release, I guess.</description>
		<content:encoded><![CDATA[<p>OK, then I guess the only way this could become really interesting is if the WMAP people came out and said their data is in conflict with current limits &#8211; thus explaining the long delay in the official release, I guess.</p>
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		<title>By: Sean</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8254</link>
		<dc:creator>Sean</dc:creator>
		<pubDate>Wed, 07 Dec 2005 17:53:07 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8254</guid>
		<description>Current limits are already better than 10% or so.  Anything we discover at this point will count as &quot;nearly&quot; scale-invariant.</description>
		<content:encoded><![CDATA[<p>Current limits are already better than 10% or so.  Anything we discover at this point will count as &#8220;nearly&#8221; scale-invariant.</p>
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		<title>By: Dissident</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8253</link>
		<dc:creator>Dissident</dc:creator>
		<pubDate>Wed, 07 Dec 2005 17:51:50 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8253</guid>
		<description>Hm, I may have overinterpreted the gossip. I thought Aaron was implying a sizable deviation from 1. Let&#039;s put it this way then: at what level of deviation form 1 would the &quot;new constraint&quot; on inflation become difficult to satisfy? If 5% is OK, what about 10%? 20%? Where does it become troublesome?</description>
		<content:encoded><![CDATA[<p>Hm, I may have overinterpreted the gossip. I thought Aaron was implying a sizable deviation from 1. Let&#8217;s put it this way then: at what level of deviation form 1 would the &#8220;new constraint&#8221; on inflation become difficult to satisfy? If 5% is OK, what about 10%? 20%? Where does it become troublesome?</p>
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		<title>By: Sean</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8252</link>
		<dc:creator>Sean</dc:creator>
		<pubDate>Wed, 07 Dec 2005 17:46:15 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8252</guid>
		<description>It&#039;s actually the opposite of what Dissident just said, I&#039;m afraid.  The generic prediction of inflation models is a &lt;strong&gt;nearly&lt;/strong&gt; scale-invariant spectrum of perturbations.  Whatever the precise measurement turns out to be, we already know that it&#039;s nearly scale-invariant; the question is, how close?  In fact, if inflation is right, it would be kind of surprising if the spectrum were extremely close to scale-invariant; it&#039;s easier to deviate by 5% or so.  So if there is evidence for a deviation from scale invariance, it will fit into the inflationary paradigm very nicely, and would presumably be a stringent new constraint on inflationary models.</description>
		<content:encoded><![CDATA[<p>It&#8217;s actually the opposite of what Dissident just said, I&#8217;m afraid.  The generic prediction of inflation models is a <strong>nearly</strong> scale-invariant spectrum of perturbations.  Whatever the precise measurement turns out to be, we already know that it&#8217;s nearly scale-invariant; the question is, how close?  In fact, if inflation is right, it would be kind of surprising if the spectrum were extremely close to scale-invariant; it&#8217;s easier to deviate by 5% or so.  So if there is evidence for a deviation from scale invariance, it will fit into the inflationary paradigm very nicely, and would presumably be a stringent new constraint on inflationary models.</p>
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		<title>By: Dissident</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8251</link>
		<dc:creator>Dissident</dc:creator>
		<pubDate>Wed, 07 Dec 2005 17:28:59 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8251</guid>
		<description>#46: A scale-invariant fluctuation spectrum is usually stated to be a prediction of inflation (though the odd Dissident has been known to &lt;a href=&quot;http://blogs.discovermagazine.com/cosmicvariance/2005/09/05/dark-matter-and-extra-dimensional-modifications-of-gravity/#comment-2932&quot; rel=&quot;nofollow&quot;&gt;question that whole line of reasoning&lt;/a&gt;, so if true, this would pose a problem for inflation-based scenarios. Maybe time for Luminet et al to get a second hearing on their football universe?</description>
		<content:encoded><![CDATA[<p>#46: A scale-invariant fluctuation spectrum is usually stated to be a prediction of inflation (though the odd Dissident has been known to <a href="http://blogs.discovermagazine.com/cosmicvariance/2005/09/05/dark-matter-and-extra-dimensional-modifications-of-gravity/#comment-2932" rel="nofollow">question that whole line of reasoning</a>, so if true, this would pose a problem for inflation-based scenarios. Maybe time for Luminet et al to get a second hearing on their football universe?</p>
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		<title>By: Elliot</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8250</link>
		<dc:creator>Elliot</dc:creator>
		<pubDate>Wed, 07 Dec 2005 16:57:27 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8250</guid>
		<description>Island,

Lets assume your prediction about the ubiquity of life was correct. It still DOES NOT affect in any manner whatsoever the basic parameters underlying our universe as the parameters were here first. There&#039;s the rub.

I don&#039;t understand how you don&#039;t see the obvious causal paradox inherent in particularly the SAP. The WAP is simply a statement of the obvious (with the causal paradox inherent) and the FAP is religion or something like it.

Our existence constrains nothing that happened 15 billion years ago. Our existence is an emergent feature of the universe. In my opinion the goal of science is to understand how and why we are here not use the fact we are here and work backwards. I don&#039;t have a problem in using the fact that we are here as a data point but this whole line of reasoning is fundamentally flawed. If string theorist are beginning to embrace it they do so at their own peril in my opinion.</description>
		<content:encoded><![CDATA[<p>Island,</p>
<p>Lets assume your prediction about the ubiquity of life was correct. It still DOES NOT affect in any manner whatsoever the basic parameters underlying our universe as the parameters were here first. There&#8217;s the rub.</p>
<p>I don&#8217;t understand how you don&#8217;t see the obvious causal paradox inherent in particularly the SAP. The WAP is simply a statement of the obvious (with the causal paradox inherent) and the FAP is religion or something like it.</p>
<p>Our existence constrains nothing that happened 15 billion years ago. Our existence is an emergent feature of the universe. In my opinion the goal of science is to understand how and why we are here not use the fact we are here and work backwards. I don&#8217;t have a problem in using the fact that we are here as a data point but this whole line of reasoning is fundamentally flawed. If string theorist are beginning to embrace it they do so at their own peril in my opinion.</p>
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		<title>By: Thomas Larsson</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8249</link>
		<dc:creator>Thomas Larsson</dc:creator>
		<pubDate>Wed, 07 Dec 2005 08:18:02 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8249</guid>
		<description>&lt;em&gt;Latest gossip I hear is that WMAP is set to say that the spectral index is less than one at 3 sigma.&lt;/em&gt;

So what would the implications of this be?</description>
		<content:encoded><![CDATA[<p><em>Latest gossip I hear is that WMAP is set to say that the spectral index is less than one at 3 sigma.</em></p>
<p>So what would the implications of this be?</p>
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		<title>By: Sean</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8248</link>
		<dc:creator>Sean</dc:creator>
		<pubDate>Wed, 07 Dec 2005 06:37:14 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8248</guid>
		<description>Haven&#039;t heard anything myself.  I presume if it&#039;s true, we&#039;ll be hearing soon enough.</description>
		<content:encoded><![CDATA[<p>Haven&#8217;t heard anything myself.  I presume if it&#8217;s true, we&#8217;ll be hearing soon enough.</p>
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		<title>By: Aaron Bergman</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8247</link>
		<dc:creator>Aaron Bergman</dc:creator>
		<pubDate>Wed, 07 Dec 2005 06:28:58 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8247</guid>
		<description>So, I can&#039;t help but post this somewhere:

Latest gossip I hear is that WMAP is set to say that the spectral index is less than one at 3 sigma.

Just throwing that out there. This was apparently announced at a conference in Europe, so I assume it&#039;s ok to publicize it. Any thoughts from our hosts?</description>
		<content:encoded><![CDATA[<p>So, I can&#8217;t help but post this somewhere:</p>
<p>Latest gossip I hear is that WMAP is set to say that the spectral index is less than one at 3 sigma.</p>
<p>Just throwing that out there. This was apparently announced at a conference in Europe, so I assume it&#8217;s ok to publicize it. Any thoughts from our hosts?</p>
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		<title>By: island</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8246</link>
		<dc:creator>island</dc:creator>
		<pubDate>Wed, 07 Dec 2005 03:18:36 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8246</guid>
		<description>What a total disappointment, I wonder if it&#039;s too late to cancel my book order and my membership to a society that is so afraid of a statement like the following that they would make every possible excuse for concocting some imagined &quot;formal refutation&quot; of something that serves as a powerful form of supporting evidence for the validity of our best theories.

How lame is that?... no more lame than this:

&lt;i&gt;the appearance of intelligent design is undeniable&lt;/i&gt;

What a dumb statement, Lenny, you&#039;ve quite obviously bought right straight into the creationists hype that &quot;the appearance&quot;, (as you call it), of purpose in the forces of nature, can ever possibly constitute evidence for intelligent design in a universe where every known cause is natural.  What has happened to science that they let creationists dictate stupid ideas like that?  There can be no such &quot;inference&quot; without direct proof!

What is it that makes people ignore the fact that the multitude of anthropic coincidences are balanced, either precariously, or they are attracted to a location that lies **near** exactly between diametrically opposing runaway tendencies, where any sustained difference *would* result in conditions that are so far away from your wildest dreams for what constitutes life, that &quot;life as we know it&quot; is the only possible form of life that is even possible.

What makes people make lame statements that are prejudicially designed to downplay the significance of the anthropic principle by willfully ignoring the actual implications of the evidence?

&quot;I can&#039;t believe that the Sun comes up at about the same time that I go to work every day&quot;... please, the fact that conditions have to be the way that they are does not even come close to getting it when you think about the above for about no seconds compounded exponentially by orders of magnitude with each additional coincidence.

I dunno about everybody elses mega-multi-fantasy-universes, but I do know how a vacuum works, and I do know that an ENTROPIC anthropic principle is most-natural in a predominantly expansive universe, so flatness, structure, and even gravity must necessarly still be related to the energy dissemination process.

I know, for example, that an expanding vacuum has negative pressure, because its density is necessarily less than that of matter, and so the force of the energy is directed in the opposite direction.  This results in an antigravity effect which cancels with positive gravitational curvature, thus mimicing the mysterious negative mass effect that showed up in our equations about the same time that physics lost touch with reality.  A Positron that is made from this energy must have positive mass because it has positive matter density once the negative pressure energy is condensed down over a finite enough area of space.

I also know that particle creation from negative pressure energy holds any normal universe flat while causing expansion by way of further vacuum rarefaction because this necessarily results in a counterbalancing increase in both, negative pressure and grvity.  So tension between ordinary matter and the vacuum increases instead, and continued expansion will inevitably compromise the integrity of the forces that bind the universe, eventually... and boom goes the causality problem... the horizon problem, the flatness problem, Matter/Anti-matter asymmetry problem, the cosmological constant problem... etc... but without need of an inflationary band-aid scenario.

I know that Supernovae, Black Holes, and us wee-little humans are the only known or expected sources for vacuum expansion in a universe that expands via the described form of matter generation, except that we are the MOST energy-efficient at it out of all of them.

And finally, I know that such a defined need for these highly specialized dissipative structures necessarily extends the principle to its biocentric form, where life will necessarily be as common as the universal scale need for it demands.

So if you want a prediction, then let it be this:

SETI will prove that the anthropic principle is a biocentric thermodynamic principle that&#039;s predicting that the skies are going to light-up across the universe near-simultaneously with radio transmissions from very similar life-forms on every banded spiral galaxy that exists on the same evolutionary plane as us... at near exactly the same time... in the history of the universe.

I just hope that we don&#039;t mistake them for god and pretend like we didn&#039;t hear them, because we&#039;re too afraid of what creationists might make of it.

&lt;i&gt;...must&#039;ve been random patterns in the matrix, but the appearance of intelligent design was uncanny&lt;/i&gt;...

Amen</description>
		<content:encoded><![CDATA[<p>What a total disappointment, I wonder if it&#8217;s too late to cancel my book order and my membership to a society that is so afraid of a statement like the following that they would make every possible excuse for concocting some imagined &#8220;formal refutation&#8221; of something that serves as a powerful form of supporting evidence for the validity of our best theories.</p>
<p>How lame is that?&#8230; no more lame than this:</p>
<p><i>the appearance of intelligent design is undeniable</i></p>
<p>What a dumb statement, Lenny, you&#8217;ve quite obviously bought right straight into the creationists hype that &#8220;the appearance&#8221;, (as you call it), of purpose in the forces of nature, can ever possibly constitute evidence for intelligent design in a universe where every known cause is natural.  What has happened to science that they let creationists dictate stupid ideas like that?  There can be no such &#8220;inference&#8221; without direct proof!</p>
<p>What is it that makes people ignore the fact that the multitude of anthropic coincidences are balanced, either precariously, or they are attracted to a location that lies **near** exactly between diametrically opposing runaway tendencies, where any sustained difference *would* result in conditions that are so far away from your wildest dreams for what constitutes life, that &#8220;life as we know it&#8221; is the only possible form of life that is even possible.</p>
<p>What makes people make lame statements that are prejudicially designed to downplay the significance of the anthropic principle by willfully ignoring the actual implications of the evidence?</p>
<p>&#8220;I can&#8217;t believe that the Sun comes up at about the same time that I go to work every day&#8221;&#8230; please, the fact that conditions have to be the way that they are does not even come close to getting it when you think about the above for about no seconds compounded exponentially by orders of magnitude with each additional coincidence.</p>
<p>I dunno about everybody elses mega-multi-fantasy-universes, but I do know how a vacuum works, and I do know that an ENTROPIC anthropic principle is most-natural in a predominantly expansive universe, so flatness, structure, and even gravity must necessarly still be related to the energy dissemination process.</p>
<p>I know, for example, that an expanding vacuum has negative pressure, because its density is necessarily less than that of matter, and so the force of the energy is directed in the opposite direction.  This results in an antigravity effect which cancels with positive gravitational curvature, thus mimicing the mysterious negative mass effect that showed up in our equations about the same time that physics lost touch with reality.  A Positron that is made from this energy must have positive mass because it has positive matter density once the negative pressure energy is condensed down over a finite enough area of space.</p>
<p>I also know that particle creation from negative pressure energy holds any normal universe flat while causing expansion by way of further vacuum rarefaction because this necessarily results in a counterbalancing increase in both, negative pressure and grvity.  So tension between ordinary matter and the vacuum increases instead, and continued expansion will inevitably compromise the integrity of the forces that bind the universe, eventually&#8230; and boom goes the causality problem&#8230; the horizon problem, the flatness problem, Matter/Anti-matter asymmetry problem, the cosmological constant problem&#8230; etc&#8230; but without need of an inflationary band-aid scenario.</p>
<p>I know that Supernovae, Black Holes, and us wee-little humans are the only known or expected sources for vacuum expansion in a universe that expands via the described form of matter generation, except that we are the MOST energy-efficient at it out of all of them.</p>
<p>And finally, I know that such a defined need for these highly specialized dissipative structures necessarily extends the principle to its biocentric form, where life will necessarily be as common as the universal scale need for it demands.</p>
<p>So if you want a prediction, then let it be this:</p>
<p>SETI will prove that the anthropic principle is a biocentric thermodynamic principle that&#8217;s predicting that the skies are going to light-up across the universe near-simultaneously with radio transmissions from very similar life-forms on every banded spiral galaxy that exists on the same evolutionary plane as us&#8230; at near exactly the same time&#8230; in the history of the universe.</p>
<p>I just hope that we don&#8217;t mistake them for god and pretend like we didn&#8217;t hear them, because we&#8217;re too afraid of what creationists might make of it.</p>
<p><i>&#8230;must&#8217;ve been random patterns in the matrix, but the appearance of intelligent design was uncanny</i>&#8230;</p>
<p>Amen</p>
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		<title>By: Plato</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8245</link>
		<dc:creator>Plato</dc:creator>
		<pubDate>Tue, 06 Dec 2005 22:15:45 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8245</guid>
		<description>The thoughts about the relationship of positons always comes back to &quot;Susskind and Smolins&quot; comparative views on the Edge.

But for sensibilities and reason, if we had held to such a thought, such a &quot;superfluid&quot; which could exist?

Then what role would this play in cosmolgical design?

 What guiding principal Anthropic design if not held to a finer constitution such &lt;a href=&quot;http://eskesthai.blogspot.com/2005/12/color-glass-condensate.html&quot; rel=&quot;nofollow&quot;&gt;as here&lt;/a&gt;?


At last, Dantas response to Peter Woits &quot;Canonical voice&lt;/a&gt;&quot; from &quot;the group,&quot; speaks for those of us less adept.</description>
		<content:encoded><![CDATA[<p>The thoughts about the relationship of positons always comes back to &#8220;Susskind and Smolins&#8221; comparative views on the Edge.</p>
<p>But for sensibilities and reason, if we had held to such a thought, such a &#8220;superfluid&#8221; which could exist?</p>
<p>Then what role would this play in cosmolgical design?</p>
<p> What guiding principal Anthropic design if not held to a finer constitution such <a href="http://eskesthai.blogspot.com/2005/12/color-glass-condensate.html" rel="nofollow">as here</a>?</p>
<p>At last, Dantas response to Peter Woits &#8220;Canonical voice&#8221; from &#8220;the group,&#8221; speaks for those of us less adept.</p>
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		<title>By: Elliot</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8244</link>
		<dc:creator>Elliot</dc:creator>
		<pubDate>Tue, 06 Dec 2005 22:11:45 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8244</guid>
		<description>Aaron/Sean. Thanks. I think I kind of get it ;)

Elliot</description>
		<content:encoded><![CDATA[<p>Aaron/Sean. Thanks. I think I kind of get it <img src='http://blogs.discovermagazine.com/cosmicvariance/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
<p>Elliot</p>
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		<title>By: Aaron Bergman</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8243</link>
		<dc:creator>Aaron Bergman</dc:creator>
		<pubDate>Tue, 06 Dec 2005 22:10:03 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8243</guid>
		<description>I think Sean&#039;s got it pretty much covered.</description>
		<content:encoded><![CDATA[<p>I think Sean&#8217;s got it pretty much covered.</p>
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		<title>By: Sean</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8242</link>
		<dc:creator>Sean</dc:creator>
		<pubDate>Tue, 06 Dec 2005 20:21:27 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8242</guid>
		<description>I&#039;m sure Aaron will chime in, but -- it turns out that the scale where we hope to find supersymmetry breaking (about one trillion electron volts, or one TeV) is approximately the geometric mean of the vacuum energy scale (of order 10^-15 TeV) and the Planck scale (10^15 TeV).  All you need is a theory that explains why that might be so.  It&#039;s reminiscent of the seesaw mechanism, which is a way to explain why the electroweak scale (of order 10^-1 TeV) is the geometric mean of the neutrino masses (10^-15 TeV) and the GUT scale (10^13 TeV).  In the case of neutrinos, there are actual models which make this happen via diagonalization of certain mass matrices; in the case of the vacuum energy, it&#039;s just wishful speculation at this point.</description>
		<content:encoded><![CDATA[<p>I&#8217;m sure Aaron will chime in, but &#8212; it turns out that the scale where we hope to find supersymmetry breaking (about one trillion electron volts, or one TeV) is approximately the geometric mean of the vacuum energy scale (of order 10^-15 TeV) and the Planck scale (10^15 TeV).  All you need is a theory that explains why that might be so.  It&#8217;s reminiscent of the seesaw mechanism, which is a way to explain why the electroweak scale (of order 10^-1 TeV) is the geometric mean of the neutrino masses (10^-15 TeV) and the GUT scale (10^13 TeV).  In the case of neutrinos, there are actual models which make this happen via diagonalization of certain mass matrices; in the case of the vacuum energy, it&#8217;s just wishful speculation at this point.</p>
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		<title>By: Elliot</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/comment-page-1/#comment-8241</link>
		<dc:creator>Elliot</dc:creator>
		<pubDate>Tue, 06 Dec 2005 19:14:38 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2005/12/05/duff-on-susskind/#comment-8241</guid>
		<description>Aaron,

Now you&#039;ve got my laymans curiosity aroused. Can you give a reasonably accessible definiton of the &quot;seesaw scale&quot;?

Thanks,

Elliot</description>
		<content:encoded><![CDATA[<p>Aaron,</p>
<p>Now you&#8217;ve got my laymans curiosity aroused. Can you give a reasonably accessible definiton of the &#8220;seesaw scale&#8221;?</p>
<p>Thanks,</p>
<p>Elliot</p>
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