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	<title>Comments on: Guest post: Amedeo Balbi, &#8220;Dark Energy for Beginners&#8221;</title>
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	<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/</link>
	<description>private thoughts of a physicist and chessplayer</description>
	<lastBuildDate>Thu, 24 Dec 2009 08:50:26 +0000</lastBuildDate>
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		<title>By: grafff098</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-117416</link>
		<dc:creator>grafff098</dc:creator>
		<pubDate>Thu, 17 Dec 2009 21:33:01 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-117416</guid>
		<description></description>
		<content:encoded><![CDATA[<p>âñåì ïðèâåò!!!</p>
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		<title>By: sandrar</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-116607</link>
		<dc:creator>sandrar</dc:creator>
		<pubDate>Thu, 10 Sep 2009 19:57:12 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-116607</guid>
		<description>Hi! I was surfing and found your blog post... nice! I love your blog.  :) Cheers! Sandra. R.</description>
		<content:encoded><![CDATA[<p>Hi! I was surfing and found your blog post&#8230; nice! I love your blog.  <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' />  Cheers! Sandra. R.</p>
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		<title>By: Pretty Ignorant</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-101192</link>
		<dc:creator>Pretty Ignorant</dc:creator>
		<pubDate>Sat, 18 Oct 2008 05:52:45 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-101192</guid>
		<description>Hi guys, 
I and pretty ignorant about cosmology, but I have been shocked by this recent post:

Axiomatic approach to the cosmological constant
Authors: Christian Beck
arXiv:0810.0752v1 [gr-qc]

He claims to get the actual value of the cosmological constant within error bars. How importat do you feel this finding is?

thanks,

P.I.</description>
		<content:encoded><![CDATA[<p>Hi guys,<br />
I and pretty ignorant about cosmology, but I have been shocked by this recent post:</p>
<p>Axiomatic approach to the cosmological constant<br />
Authors: Christian Beck<br />
arXiv:0810.0752v1 [gr-qc]</p>
<p>He claims to get the actual value of the cosmological constant within error bars. How importat do you feel this finding is?</p>
<p>thanks,</p>
<p>P.I.</p>
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	<item>
		<title>By: Fine tuning and numerical coincidences &#171; A Quantum Diaries Survivor</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-98497</link>
		<dc:creator>Fine tuning and numerical coincidences &#171; A Quantum Diaries Survivor</dc:creator>
		<pubDate>Tue, 01 Jul 2008 18:27:43 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-98497</guid>
		<description>[...] similar coincidence -and actually an even more striking one- happens with dark energy in Cosmology. Dark energy has a density which is orders and orders of magnitude smaller than what [...]</description>
		<content:encoded><![CDATA[<p>[...] similar coincidence -and actually an even more striking one- happens with dark energy in Cosmology. Dark energy has a density which is orders and orders of magnitude smaller than what [...]</p>
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	<item>
		<title>By: Generic Cialis</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-83805</link>
		<dc:creator>Generic Cialis</dc:creator>
		<pubDate>Sat, 24 Nov 2007 03:21:59 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-83805</guid>
		<description>Hi, &lt;a href=&quot;http://www.google.com/notebook/public/15481206017123324486/BDSe5QgoQvf6NlOYi&quot; rel=&quot;nofollow&quot;&gt;Generic Cialis&lt;/a&gt;  http://www.google.com/notebook/public/15481206017123324486/BDSe5QgoQvf6NlOYi</description>
		<content:encoded><![CDATA[<p>Hi, <a href="http://www.google.com/notebook/public/15481206017123324486/BDSe5QgoQvf6NlOYi" rel="nofollow">Generic Cialis</a>  <a href="http://www.google.com/notebook/public/15481206017123324486/BDSe5QgoQvf6NlOYi" rel="nofollow">http://www.google.com/notebook/public/15481206017123324486/BDSe5QgoQvf6NlOYi</a></p>
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		<title>By: Maxim</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-76261</link>
		<dc:creator>Maxim</dc:creator>
		<pubDate>Tue, 09 Oct 2007 03:46:12 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-76261</guid>
		<description>The Iraqi government says guards from US security firm Blackwater killed more people than previously thought.</description>
		<content:encoded><![CDATA[<p>The Iraqi government says guards from US security firm Blackwater killed more people than previously thought.</p>
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		<title>By: dorigo</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-57225</link>
		<dc:creator>dorigo</dc:creator>
		<pubDate>Fri, 13 Jul 2007 20:04:55 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-57225</guid>
		<description>Wow Dan, my compliments for your boldness. It seems quite a shot in the dark to me, but I&#039;m willing to say we know so little about dark energy that anything goes as a tentative working hypothesis. Only criticism I find compelling with my limited CPU available is: we are talking about a HUGE effect here, and neutron stars not that common in the universe.

Cheers,
T.</description>
		<content:encoded><![CDATA[<p>Wow Dan, my compliments for your boldness. It seems quite a shot in the dark to me, but I&#8217;m willing to say we know so little about dark energy that anything goes as a tentative working hypothesis. Only criticism I find compelling with my limited CPU available is: we are talking about a HUGE effect here, and neutron stars not that common in the universe.</p>
<p>Cheers,<br />
T.</p>
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		<title>By: Dan Browne</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-57170</link>
		<dc:creator>Dan Browne</dc:creator>
		<pubDate>Fri, 13 Jul 2007 13:09:48 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-57170</guid>
		<description>Let me take a guess here based on a few base assumptions.

1. The acceleration expansion &quot;appeared out of nowhere&quot; some billions of years ago.
2. The Tajmar results show that a strong gravitomagnetic effect is observed in spinning superconductors - orders of magnitude larger than current quantum models suggest.
3. Neutron stars are hypothesized to take billions of years to form.
4. Neutron stars are hypothesized to contain superconducting layers.
5. Neutron stars spin really fast.

Putting all of this together I&#039;d take a stab at a hypothesis and say that perhaps the cosmological constant is *caused* by the accumulation of spinning neutron stars at some point after the big bang.</description>
		<content:encoded><![CDATA[<p>Let me take a guess here based on a few base assumptions.</p>
<p>1. The acceleration expansion &#8220;appeared out of nowhere&#8221; some billions of years ago.<br />
2. The Tajmar results show that a strong gravitomagnetic effect is observed in spinning superconductors &#8211; orders of magnitude larger than current quantum models suggest.<br />
3. Neutron stars are hypothesized to take billions of years to form.<br />
4. Neutron stars are hypothesized to contain superconducting layers.<br />
5. Neutron stars spin really fast.</p>
<p>Putting all of this together I&#8217;d take a stab at a hypothesis and say that perhaps the cosmological constant is *caused* by the accumulation of spinning neutron stars at some point after the big bang.</p>
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		<title>By: Guest post: Fabio Zandanel, &#8220;Dark Matter and the MAGIC telescope&#8221; &#171; A Quantum Diaries Survivor</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-57036</link>
		<dc:creator>Guest post: Fabio Zandanel, &#8220;Dark Matter and the MAGIC telescope&#8221; &#171; A Quantum Diaries Survivor</dc:creator>
		<pubDate>Thu, 12 Jul 2007 18:26:40 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-57036</guid>
		<description>[...] 73% of the Universe density is accounted for byÂ Â dark energy, a bizarre form of energy or matter that is, in effect, gravitationally repulsive. The dark energy [...]</description>
		<content:encoded><![CDATA[<p>[...] 73% of the Universe density is accounted for byÂ Â dark energy, a bizarre form of energy or matter that is, in effect, gravitationally repulsive. The dark energy [...]</p>
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		<title>By: island</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34505</link>
		<dc:creator>island</dc:creator>
		<pubDate>Sat, 14 Apr 2007 10:30:05 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34505</guid>
		<description>Tommasso, I was going to send an email to you, but I&#039;m not positive that I had the right one, and I&#039;m perfectly willing to be held accountable for my claims, so I&#039;m just going to say this here:

Thank you for encouraging me to express my views and for your repeated requests that a theorist might comment..  As I briefly explained in &lt;a href=&quot;http://dorigo.wordpress.com/2007/03/27/the-miserable-near-future-of-cosmology/#comment-31554&quot; rel=&quot;nofollow&quot;&gt;this older posting&lt;/a&gt;, that doesn&#039;t happen.  It&#039;s kind of hard for anybody to shoot down the physics, since they should already know that this mechanism is valid in inflationary models, not to mention &lt;a href=&quot;http://www.astro.ucla.edu/~wright/cosmo_constant.html&quot; rel=&quot;nofollow&quot;&gt;how simple it is (study this)&lt;/a&gt;, to understand this physics.

The problem is that nobody wants to hear it, and that&#039;s the bottom line until the bottom falls out of particle theory as has been predicted will happen if you guys don&#039;t find the higgs or new physics, so that&#039;s why finding nothig is equally valuable, as far as I&#039;m concerned, even thought that is understably not the hope of so many that have worked so hard, and I am sorry about that.

I could say more, but I am so frustrated by all of this that I probably wouldn&#039;t be comprehensible, so I&#039;m just going to say that I&#039;ve never been in a position before where I can win every battle, yet still lose the war, due only to completely non-scientific willful denial.  I know what it&#039;s like, and how to recognize when I&#039;ve been shot down, (which is the difference between a crackpot and an honest scientist, if you ask me), but that hasn&#039;t happened since I stumbled onto all this crap that has caused me to hate the people that I used to respect the most for exactly that reason!

What kills me is the fact that there is obviously an theory of quantum gravity that&#039;s embeded in this physics, which nobody likes because the background changes every time that you take more mass-energy out of the vacuum to make real, massive particles with, but that&#039;s also why Dirac&#039;s ideas about large natural numbers weren&#039;t just &quot;numerology&quot;.

With all the flack flying on both sides about how wrong &quot;either side&quot; is, you&#039;d think that the observation that maybe they&#039;re both hopelessly lost wouldn&#039;t be such a great heresy to their world-view.  Ha!

Thanks again, Tomasso, very much, and I&#039;ll try not to hijack another thread in my futile attempts rattle somebody into sanity.</description>
		<content:encoded><![CDATA[<p>Tommasso, I was going to send an email to you, but I&#8217;m not positive that I had the right one, and I&#8217;m perfectly willing to be held accountable for my claims, so I&#8217;m just going to say this here:</p>
<p>Thank you for encouraging me to express my views and for your repeated requests that a theorist might comment..  As I briefly explained in <a href="http://dorigo.wordpress.com/2007/03/27/the-miserable-near-future-of-cosmology/#comment-31554" rel="nofollow">this older posting</a>, that doesn&#8217;t happen.  It&#8217;s kind of hard for anybody to shoot down the physics, since they should already know that this mechanism is valid in inflationary models, not to mention <a href="http://www.astro.ucla.edu/~wright/cosmo_constant.html" rel="nofollow">how simple it is (study this)</a>, to understand this physics.</p>
<p>The problem is that nobody wants to hear it, and that&#8217;s the bottom line until the bottom falls out of particle theory as has been predicted will happen if you guys don&#8217;t find the higgs or new physics, so that&#8217;s why finding nothig is equally valuable, as far as I&#8217;m concerned, even thought that is understably not the hope of so many that have worked so hard, and I am sorry about that.</p>
<p>I could say more, but I am so frustrated by all of this that I probably wouldn&#8217;t be comprehensible, so I&#8217;m just going to say that I&#8217;ve never been in a position before where I can win every battle, yet still lose the war, due only to completely non-scientific willful denial.  I know what it&#8217;s like, and how to recognize when I&#8217;ve been shot down, (which is the difference between a crackpot and an honest scientist, if you ask me), but that hasn&#8217;t happened since I stumbled onto all this crap that has caused me to hate the people that I used to respect the most for exactly that reason!</p>
<p>What kills me is the fact that there is obviously an theory of quantum gravity that&#8217;s embeded in this physics, which nobody likes because the background changes every time that you take more mass-energy out of the vacuum to make real, massive particles with, but that&#8217;s also why Dirac&#8217;s ideas about large natural numbers weren&#8217;t just &#8220;numerology&#8221;.</p>
<p>With all the flack flying on both sides about how wrong &#8220;either side&#8221; is, you&#8217;d think that the observation that maybe they&#8217;re both hopelessly lost wouldn&#8217;t be such a great heresy to their world-view.  Ha!</p>
<p>Thanks again, Tomasso, very much, and I&#8217;ll try not to hijack another thread in my futile attempts rattle somebody into sanity.</p>
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		<title>By: island</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34216</link>
		<dc:creator>island</dc:creator>
		<pubDate>Thu, 12 Apr 2007 16:53:21 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34216</guid>
		<description>Wait just a minute here... the answer to the riddle of the near-flat expanding universe, (as well as the rest of the anthropic coincidences), is/was expected to be revealed by models depicting the normal evolution of the universe within the observed constraints... per least action principle.

So, first principle physics that accomplishes that which others rely on multiverses to accomplish, necessarily takes theoretical precedence per the scientific method for choosing the preferred theory, while strongly supporting the assertion that the universe is about 13.7 years finite.

http://arxiv.org/abs/hep-th/0512148

The only thing that Sean Carroll ever did for me... ;)</description>
		<content:encoded><![CDATA[<p>Wait just a minute here&#8230; the answer to the riddle of the near-flat expanding universe, (as well as the rest of the anthropic coincidences), is/was expected to be revealed by models depicting the normal evolution of the universe within the observed constraints&#8230; per least action principle.</p>
<p>So, first principle physics that accomplishes that which others rely on multiverses to accomplish, necessarily takes theoretical precedence per the scientific method for choosing the preferred theory, while strongly supporting the assertion that the universe is about 13.7 years finite.</p>
<p><a href="http://arxiv.org/abs/hep-th/0512148" rel="nofollow">http://arxiv.org/abs/hep-th/0512148</a></p>
<p>The only thing that Sean Carroll ever did for me&#8230; <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
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		<title>By: island</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34017</link>
		<dc:creator>island</dc:creator>
		<pubDate>Wed, 11 Apr 2007 18:25:14 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34017</guid>
		<description>No, you&#039;re right, I still have to rely on Einstein&#039;s physics to make the point... oh, shucks... ;)</description>
		<content:encoded><![CDATA[<p>No, you&#8217;re right, I still have to rely on Einstein&#8217;s physics to make the point&#8230; oh, shucks&#8230; <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
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		<title>By: dorigo</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34013</link>
		<dc:creator>dorigo</dc:creator>
		<pubDate>Wed, 11 Apr 2007 18:20:30 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34013</guid>
		<description>... However, I would not like you to think I am not taking what you posted above seriously, Island. It is just that I find myself ill-at-ease arguing on these matters, because I am basically an ignorant in cosmology, only a well-learned one.

But that should not stop you from discussing your ideas here, of course - I trust this blog attracts more knowledgeable readers than myself.

Cheers,
T.</description>
		<content:encoded><![CDATA[<p>&#8230; However, I would not like you to think I am not taking what you posted above seriously, Island. It is just that I find myself ill-at-ease arguing on these matters, because I am basically an ignorant in cosmology, only a well-learned one.</p>
<p>But that should not stop you from discussing your ideas here, of course &#8211; I trust this blog attracts more knowledgeable readers than myself.</p>
<p>Cheers,<br />
T.</p>
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		<title>By: dorigo</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34012</link>
		<dc:creator>dorigo</dc:creator>
		<pubDate>Wed, 11 Apr 2007 18:16:36 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34012</guid>
		<description>Hi Island,

I love first principles, but, as Groucho used to say,

&quot;Those are my principles, and if you don&#039;t like them... Well, I have others!&quot;.

Meaning that, nothing wrong in using the principle of minimum action to try and justify the structure of the Universe, by making a few assumptions (such as your questionable claim that a uniform universe corresponds to low entropy). 

However, one might object that by starting off with a different first principle, plus a different set of additional assumptions, one would get another model consistent with the data... Groucho rulez.

Cheers,
T.</description>
		<content:encoded><![CDATA[<p>Hi Island,</p>
<p>I love first principles, but, as Groucho used to say,</p>
<p>&#8220;Those are my principles, and if you don&#8217;t like them&#8230; Well, I have others!&#8221;.</p>
<p>Meaning that, nothing wrong in using the principle of minimum action to try and justify the structure of the Universe, by making a few assumptions (such as your questionable claim that a uniform universe corresponds to low entropy). </p>
<p>However, one might object that by starting off with a different first principle, plus a different set of additional assumptions, one would get another model consistent with the data&#8230; Groucho rulez.</p>
<p>Cheers,<br />
T.</p>
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		<title>By: dorigo</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34011</link>
		<dc:creator>dorigo</dc:creator>
		<pubDate>Wed, 11 Apr 2007 18:12:14 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34011</guid>
		<description>Thank you Smoky, I will let you know...

T.</description>
		<content:encoded><![CDATA[<p>Thank you Smoky, I will let you know&#8230;</p>
<p>T.</p>
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		<title>By: island</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34003</link>
		<dc:creator>island</dc:creator>
		<pubDate>Wed, 11 Apr 2007 17:43:25 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-34003</guid>
		<description>&lt;i&gt;The issue was not mature to be resolved back thenâ€¦ It in fact is not mature even now.&lt;/i&gt;

I&#039;ve been kicking this around, Tommaso, and I think that might be incorrect, since it can be argued that the near-perfect balanced structure of the observed universe maximizes work via the uniform dissemination of energy that this &quot;low-entropy&quot; configuration produces.

That&#039;s an energy conservation law if the quantum oscillator is finite, since energy gets wasted in any other configuration and energy can&#039;t be conserved if work isn&#039;t maximized.

That&#039;s fine-tuning from FIRST PRINCIPLES!</description>
		<content:encoded><![CDATA[<p><i>The issue was not mature to be resolved back thenâ€¦ It in fact is not mature even now.</i></p>
<p>I&#8217;ve been kicking this around, Tommaso, and I think that might be incorrect, since it can be argued that the near-perfect balanced structure of the observed universe maximizes work via the uniform dissemination of energy that this &#8220;low-entropy&#8221; configuration produces.</p>
<p>That&#8217;s an energy conservation law if the quantum oscillator is finite, since energy gets wasted in any other configuration and energy can&#8217;t be conserved if work isn&#8217;t maximized.</p>
<p>That&#8217;s fine-tuning from FIRST PRINCIPLES!</p>
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		<title>By: Thai</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-33214</link>
		<dc:creator>Thai</dc:creator>
		<pubDate>Sun, 08 Apr 2007 23:44:08 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-33214</guid>
		<description>How great and wonderful the universe is.  It is so large in my eyes, yet so small in God&#039;s eyes.</description>
		<content:encoded><![CDATA[<p>How great and wonderful the universe is.  It is so large in my eyes, yet so small in God&#8217;s eyes.</p>
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		<title>By: Smoky</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-33187</link>
		<dc:creator>Smoky</dc:creator>
		<pubDate>Sun, 08 Apr 2007 19:24:26 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-33187</guid>
		<description>When you find my alternate universe, where all of my lost things are, let me know. Until then, keep up the great posts.

Thanks,

Smoky</description>
		<content:encoded><![CDATA[<p>When you find my alternate universe, where all of my lost things are, let me know. Until then, keep up the great posts.</p>
<p>Thanks,</p>
<p>Smoky</p>
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		<title>By: dorigo</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-32988</link>
		<dc:creator>dorigo</dc:creator>
		<pubDate>Sat, 07 Apr 2007 12:45:23 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-32988</guid>
		<description>Hi Island,

&quot;what a crackpot&quot; -&gt; lol...

The issue was not mature to be resolved back then... It in fact is not mature even now. Maybe in 10 years. I only hope I will have understood all the details when that happens :)

Cheers,
T.</description>
		<content:encoded><![CDATA[<p>Hi Island,</p>
<p>&#8220;what a crackpot&#8221; -&gt; lol&#8230;</p>
<p>The issue was not mature to be resolved back then&#8230; It in fact is not mature even now. Maybe in 10 years. I only hope I will have understood all the details when that happens <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<p>Cheers,<br />
T.</p>
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		<title>By: island</title>
		<link>http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-32695</link>
		<dc:creator>island</dc:creator>
		<pubDate>Thu, 05 Apr 2007 18:47:50 +0000</pubDate>
		<guid isPermaLink="false">http://dorigo.wordpress.com/2007/04/02/guest-post-amedeo-balbi-dark-energy-for-beginners/#comment-32695</guid>
		<description>You cannot beat John Baez when it comes to clear and concise explanations.  It was one of his negative mass puzzles that made me realize that the cosmological constant has the exact same &quot;counter-orthodox&quot; properties as a negative mass particle, except that the antigravitational effect is just negative pressure that is present whenerver its energy density is below the matter density.

It becomes obvious that a &quot;positron&quot; isn&#039;t going to have negative mass once you condense or gravitationally compress vacuum energy down enough to attain the matter density, (before feynman takes over), and this process will necessarily increase the vacuum if it is finite, because you can&#039;t rip out a huge volumous chunk of its energy without leaving a real hole in it!

It isn&#039;t fair to say:

&quot;The simplest approach is to resurrect an old idea by none other than Albert Einstein. In 1917, he introduced a new term in his general relativity field equations.&quot;

... without considering the finite cosmological model for which it was intended, which was dismissed only becauses it was thought to be unstable, (which it is obviously not, if what I said above has any merrit whatsoever).

If Einstein doesn&#039;t conceed this point, then he wins in Copenhagen, because this model is strictly deterministic, and General Relativity is a much, MUCH stronger theory which naturally demands closure of the geometry in space as a boundary condition on the initial value equations if they are to yield a well determined and unique 4-geometry.

He also recognized &quot;higher&quot; structuring in nature.

What a crackpot...</description>
		<content:encoded><![CDATA[<p>You cannot beat John Baez when it comes to clear and concise explanations.  It was one of his negative mass puzzles that made me realize that the cosmological constant has the exact same &#8220;counter-orthodox&#8221; properties as a negative mass particle, except that the antigravitational effect is just negative pressure that is present whenerver its energy density is below the matter density.</p>
<p>It becomes obvious that a &#8220;positron&#8221; isn&#8217;t going to have negative mass once you condense or gravitationally compress vacuum energy down enough to attain the matter density, (before feynman takes over), and this process will necessarily increase the vacuum if it is finite, because you can&#8217;t rip out a huge volumous chunk of its energy without leaving a real hole in it!</p>
<p>It isn&#8217;t fair to say:</p>
<p>&#8220;The simplest approach is to resurrect an old idea by none other than Albert Einstein. In 1917, he introduced a new term in his general relativity field equations.&#8221;</p>
<p>&#8230; without considering the finite cosmological model for which it was intended, which was dismissed only becauses it was thought to be unstable, (which it is obviously not, if what I said above has any merrit whatsoever).</p>
<p>If Einstein doesn&#8217;t conceed this point, then he wins in Copenhagen, because this model is strictly deterministic, and General Relativity is a much, MUCH stronger theory which naturally demands closure of the geometry in space as a boundary condition on the initial value equations if they are to yield a well determined and unique 4-geometry.</p>
<p>He also recognized &#8220;higher&#8221; structuring in nature.</p>
<p>What a crackpot&#8230;</p>
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