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	<title>Cosmology Cafe &#187; Uncategorized</title>
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		<title>Cosmology Cafe &#187; Uncategorized</title>
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		<title>Cosmology with torsion: An alternative to cosmic inflation</title>
		<link>http://cosmologycafe.com/2011/01/11/cosmology-with-torsion-an-alternative-to-cosmic-inflation/</link>
		<comments>http://cosmologycafe.com/2011/01/11/cosmology-with-torsion-an-alternative-to-cosmic-inflation/#comments</comments>
		<pubDate>Tue, 11 Jan 2011 19:41:42 +0000</pubDate>
		<dc:creator>dvmx</dc:creator>
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		<description><![CDATA[Spacetime torsion prevents the ultimate singularity in a black hole; matter/energy rebounds into a new universe; no need for inflation. Thus black holes may all harbor universes, and our universe emerged from a  black hole. arxiv.org/abs/1007.0587<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=cosmologycafe.com&#038;blog=4277035&#038;post=23&#038;subd=cosmologycafe&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Spacetime torsion prevents the ultimate singularity in a black hole; matter/energy rebounds into a new universe; no need for inflation. Thus black holes may all harbor universes, and our universe emerged from a  black hole.</p>
<p><a href="http://arxiv.org/abs/1007.0587" target="_blank">arxiv.org/abs/1007.0587</a></p>
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			<media:title type="html">dvmx</media:title>
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		<title>Biological Cosmology and the Origins of Life in the Universe</title>
		<link>http://cosmologycafe.com/2010/09/09/biological-cosmology-and-the-origins-of-life-in-the-universe/</link>
		<comments>http://cosmologycafe.com/2010/09/09/biological-cosmology-and-the-origins-of-life-in-the-universe/#comments</comments>
		<pubDate>Thu, 09 Sep 2010 19:32:17 +0000</pubDate>
		<dc:creator>dvmx</dc:creator>
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		<description><![CDATA[at the Journal of Cosmology: &#8220;The confluence of evidence from genetics, microbiology, astrobiology, and astrophysics indicates that life in the Milky Way galaxy began over 10 billion years ago, in nebular clouds. Given the trillions upon trillions of galaxies which exist in this Hubble length (observable) universe, and the trillions of trillions of supernovas which [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=cosmologycafe.com&#038;blog=4277035&#038;post=18&#038;subd=cosmologycafe&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><a href="http://journalofcosmology.com/SearchForLife125.html" target="_blank">at the Journal of Cosmology:</a></p>
<p>&#8220;The confluence of evidence from genetics,  microbiology, astrobiology,  and astrophysics indicates that life in the Milky Way galaxy began over  10 billion years ago, in nebular clouds.  Given the trillions upon  trillions of galaxies which exist in this Hubble length (observable)  universe, and the trillions of trillions of supernovas which must have  taken place in these galaxies collectively, and thus the innumerable  stellar and nebular clouds filled with all the ingredients necessary for  life, it can be deduced that life would have been created,  independently, perhaps in numerous galaxies, including the Milky Way  long before our planet was fashioned. The cosmos may be awash with every  conceivable form of life. It can be predicted that every planet  orbiting a star in every galaxy in the cosmos might have been  contaminated with life and that life would flourish, diversify, and then  evolve into increasingly complex, sentient and intelligent animals on  worlds which  orbit within the habitable zone of their sun.   This would  mean that intelligent beings may have evolved on billions of planets  and may have reached our own level of neurological and cognitive  development billions of years before Earth became a twinkle in god&#8217;s  eye&#8230;&#8221;</p>
<p>Long, well-researched argument. <a href="http://journalofcosmology.com/SearchForLife125.html"><em>(view online)</em></a></p>
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			<media:title type="html">dvmx</media:title>
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		<title>Time Travel in the Multiverse</title>
		<link>http://cosmologycafe.com/2009/09/21/time-travel-in-the-multiverse/</link>
		<comments>http://cosmologycafe.com/2009/09/21/time-travel-in-the-multiverse/#comments</comments>
		<pubDate>Mon, 21 Sep 2009 16:27:44 +0000</pubDate>
		<dc:creator>dvmx</dc:creator>
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		<description><![CDATA[Recently, Hugh Everett&#8217;s thesis of an infinite number of parallel worlds exfoliating as it were from the present has emerged as a response to the so called &#8216;grandfather paradox&#8217; inherent in the classical conception of time travel. (GP: going back to the past and disrupting the sequence of events leading to one&#8217;s birth leads to [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=cosmologycafe.com&#038;blog=4277035&#038;post=9&#038;subd=cosmologycafe&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Recently, Hugh Everett&#8217;s thesis of an infinite number of parallel worlds exfoliating as it were from the present has emerged as a response to the so called &#8216;grandfather paradox&#8217; inherent in the classical conception of time travel.  (GP: going back to the past and disrupting the sequence of events leading to one&#8217;s birth  leads to  paradox). Leaving aside the tiresome example of killing grandfathers, consider what happens if we go &#8216;back&#8217; and change something in the past in the infinite multiverse… Instead of changing the course of events in one&#8217;s his own world-line,  our traveler launches, or more precisely most likely, merges with  a new world-line narrative, which will lead to a new future; In the narrative which includes the traveler&#8217;s future from which he came, our traveler  would simply have left the scene and not returned.<br />
Now if these timelines are independent of each other, killing his grandfather would still have the effect of preventing his existence in the world-line in which he kills his grandfather, which is where he is. So really, if the world-lines are independent in this way, the paradox continues.<br />
The question boils down to whether having launched or joined a new world-line through interference with an existing word-line in the past, is our traveler then subject to the new world-line he has joined, or to the one he left, or in some hybrid state of them both?<br />
One might wonder if one were then for a second time to jump into the future, would one be limited to the future of the new world-line? Could he not return to his &#8216;own&#8217; (previous) future?<br />
Likewise traveling back in time, presumably one can only access the past of one&#8217;s own world-line. Or?<br />
And traveling into the future, is there something that keeps our traveler in a particular narrative line or would he be tossing himself into an infinity of possible futures exfoliated in the intervening time between the jump-off point our traveler left from and his destination in time?<br />
Note: no matter how many infinite world-lines one is no longer part of, there are always innumerable future world-lines all meeting at, or emerging from,  the present moment.</p>
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			<media:title type="html">dvmx</media:title>
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		<title>Multiverse Conference Lectures</title>
		<link>http://cosmologycafe.com/2008/11/20/multiverse-conference-lectures/</link>
		<comments>http://cosmologycafe.com/2008/11/20/multiverse-conference-lectures/#comments</comments>
		<pubDate>Thu, 20 Nov 2008 21:15:02 +0000</pubDate>
		<dc:creator>dvmx</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[cosmology]]></category>
		<category><![CDATA[multiverse]]></category>
		<category><![CDATA[universe]]></category>

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		<description><![CDATA[Both video and audio versions downloadable from the Multiverse Conference site<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=cosmologycafe.com&#038;blog=4277035&#038;post=4&#038;subd=cosmologycafe&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Both video and audio versions downloadable from <a title="Multiverse Conf" href="http://www.pirsa.org/C08022" target="_blank">the Multiverse Conference site</a></p>
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