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	<title>Comments on: touch of the galois</title>
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	<link>http://www.oblomovka.com/wp/2012/09/11/touch-of-the-galois/</link>
	<description>Casual Dismissals from Danny O'Brien</description>
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		<title>By: alwayslurking</title>
		<link>http://www.oblomovka.com/wp/2012/09/11/touch-of-the-galois/comment-page-1/#comment-2736</link>
		<dc:creator>alwayslurking</dc:creator>
		<pubDate>Fri, 14 Sep 2012 09:57:03 +0000</pubDate>
		<guid isPermaLink="false">http://www.oblomovka.com/wp/?p=1488#comment-2736</guid>
		<description><![CDATA[Greg Egan, I think...]]></description>
		<content:encoded><![CDATA[<p>Greg Egan, I think&#8230;</p>
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		<title>By: Waider</title>
		<link>http://www.oblomovka.com/wp/2012/09/11/touch-of-the-galois/comment-page-1/#comment-2734</link>
		<dc:creator>Waider</dc:creator>
		<pubDate>Thu, 13 Sep 2012 22:36:07 +0000</pubDate>
		<guid isPermaLink="false">http://www.oblomovka.com/wp/?p=1488#comment-2734</guid>
		<description><![CDATA[One of Greg Bear&#039;s books runs into this, a bit. Essentially he has this idea, extrapolated somewhat from present reality, that a pathfinder like Mochizuki effectively alters reality through his discovery in a way that makes his work graspable by others. I seem to recall him using this idea in both Distress and a short story.]]></description>
		<content:encoded><![CDATA[<p>One of Greg Bear&#8217;s books runs into this, a bit. Essentially he has this idea, extrapolated somewhat from present reality, that a pathfinder like Mochizuki effectively alters reality through his discovery in a way that makes his work graspable by others. I seem to recall him using this idea in both Distress and a short story.</p>
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		<title>By: Danny O'Brien</title>
		<link>http://www.oblomovka.com/wp/2012/09/11/touch-of-the-galois/comment-page-1/#comment-2732</link>
		<dc:creator>Danny O'Brien</dc:creator>
		<pubDate>Thu, 13 Sep 2012 05:22:15 +0000</pubDate>
		<guid isPermaLink="false">http://www.oblomovka.com/wp/?p=1488#comment-2732</guid>
		<description><![CDATA[That&#039;s a great description-of-the-shape of it! Thank you John!]]></description>
		<content:encoded><![CDATA[<p>That&#8217;s a great description-of-the-shape of it! Thank you John!</p>
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		<title>By: John Baez</title>
		<link>http://www.oblomovka.com/wp/2012/09/11/touch-of-the-galois/comment-page-1/#comment-2731</link>
		<dc:creator>John Baez</dc:creator>
		<pubDate>Thu, 13 Sep 2012 03:20:39 +0000</pubDate>
		<guid isPermaLink="false">http://www.oblomovka.com/wp/?p=1488#comment-2731</guid>
		<description><![CDATA[Great post!  The romance of mathematics is a wonderful thing!

&quot;I read sentences like “I believe the Frobenioid associated to a number field is something close to the finite etale covers of Spec(OF) (equipped with some log structure) together with metrized line bundles on them, although it’s probably more complicated”.&quot;

And the scary part is, that&#039;s someone trying to reduce Shinichi Mochizuki&#039;s work to the usual old stuff!  I mean, everyone in that business knows you should look at the finite etale covers of Spec(O_F), and so on.  What&#039;s weird about Mochizuki&#039;s work is that he claims to be using ideas from the foundations of mathematics - set theory - to create new &#039;universes&#039; in which to do math.  And then, he&#039;s claiming to take mathematical structures from one universe and transport them to another.  

If you look at his homepage, you&#039;ll see a sign saying &#039;Inter-universal geometer&#039; next to a picture of him staring bravely off into space.  That gets the idea across as well as anything.  

But here&#039;s a passage from his 4th paper:

&quot;In particular, one must continue to extend the universe, i.e., to
modify the model of set theory, relative to which one works. Here, we recall in passing that such “extensions of universe” are possible on account of an existence axiom concerning universes, which is apparently attributed to the “Grothendieck school” and, moreover, cannot, apparently, be obtained as a consequence of the conventional ZFC axioms of axiomatic set theory [cf. the discussion at the beginning of §3 for more details]. On the other hand, ultimately in the present series of papers [cf. the discussion of [IUTchIII], Introduction], we wish to obtain algorithms for constructing various objects that arise in the context of the new schemes/universes
discussed above — i.e., at distant Θ^±\ell NF-Hodge theaters of the log-theta-lattice — that make sense from the point of view the original schemes/universes that occurred at the outset of the discussion.&quot;]]></description>
		<content:encoded><![CDATA[<p>Great post!  The romance of mathematics is a wonderful thing!</p>
<p>&#8220;I read sentences like “I believe the Frobenioid associated to a number field is something close to the finite etale covers of Spec(OF) (equipped with some log structure) together with metrized line bundles on them, although it’s probably more complicated”.&#8221;</p>
<p>And the scary part is, that&#8217;s someone trying to reduce Shinichi Mochizuki&#8217;s work to the usual old stuff!  I mean, everyone in that business knows you should look at the finite etale covers of Spec(O_F), and so on.  What&#8217;s weird about Mochizuki&#8217;s work is that he claims to be using ideas from the foundations of mathematics &#8211; set theory &#8211; to create new &#8216;universes&#8217; in which to do math.  And then, he&#8217;s claiming to take mathematical structures from one universe and transport them to another.  </p>
<p>If you look at his homepage, you&#8217;ll see a sign saying &#8216;Inter-universal geometer&#8217; next to a picture of him staring bravely off into space.  That gets the idea across as well as anything.  </p>
<p>But here&#8217;s a passage from his 4th paper:</p>
<p>&#8220;In particular, one must continue to extend the universe, i.e., to<br />
modify the model of set theory, relative to which one works. Here, we recall in passing that such “extensions of universe” are possible on account of an existence axiom concerning universes, which is apparently attributed to the “Grothendieck school” and, moreover, cannot, apparently, be obtained as a consequence of the conventional ZFC axioms of axiomatic set theory [cf. the discussion at the beginning of §3 for more details]. On the other hand, ultimately in the present series of papers [cf. the discussion of [IUTchIII], Introduction], we wish to obtain algorithms for constructing various objects that arise in the context of the new schemes/universes<br />
discussed above — i.e., at distant Θ^±\ell NF-Hodge theaters of the log-theta-lattice — that make sense from the point of view the original schemes/universes that occurred at the outset of the discussion.&#8221;</p>
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		<title>By: Jouni K. Seppänen</title>
		<link>http://www.oblomovka.com/wp/2012/09/11/touch-of-the-galois/comment-page-1/#comment-2728</link>
		<dc:creator>Jouni K. Seppänen</dc:creator>
		<pubDate>Wed, 12 Sep 2012 17:16:23 +0000</pubDate>
		<guid isPermaLink="false">http://www.oblomovka.com/wp/?p=1488#comment-2728</guid>
		<description><![CDATA[Here&#039;s some wonderful writing about the ABC conjecture: http://www.math.harvard.edu/~mazur/papers/scanQuest.pdf]]></description>
		<content:encoded><![CDATA[<p>Here&#8217;s some wonderful writing about the ABC conjecture: <a href="http://www.math.harvard.edu/~mazur/papers/scanQuest.pdf" rel="nofollow">http://www.math.harvard.edu/~mazur/papers/scanQuest.pdf</a></p>
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		<title>By: Danny O'Brien</title>
		<link>http://www.oblomovka.com/wp/2012/09/11/touch-of-the-galois/comment-page-1/#comment-2727</link>
		<dc:creator>Danny O'Brien</dc:creator>
		<pubDate>Wed, 12 Sep 2012 15:25:12 +0000</pubDate>
		<guid isPermaLink="false">http://www.oblomovka.com/wp/?p=1488#comment-2727</guid>
		<description><![CDATA[Haha, no, I was clumsily trying to be explicit about writing tech journalism, but didn&#039;t want to say either journalism or tech, because it&#039;s been columns for the last few years, and the rest of the post was about math not tech.]]></description>
		<content:encoded><![CDATA[<p>Haha, no, I was clumsily trying to be explicit about writing tech journalism, but didn&#8217;t want to say either journalism or tech, because it&#8217;s been columns for the last few years, and the rest of the post was about math not tech.</p>
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		<title>By: Dave Green</title>
		<link>http://www.oblomovka.com/wp/2012/09/11/touch-of-the-galois/comment-page-1/#comment-2724</link>
		<dc:creator>Dave Green</dc:creator>
		<pubDate>Wed, 12 Sep 2012 10:11:58 +0000</pubDate>
		<guid isPermaLink="false">http://www.oblomovka.com/wp/?p=1488#comment-2724</guid>
		<description><![CDATA[&gt;&quot;I just gave up my last professional non-fiction writing gig last week...&quot;

- OK, I&#039;ll bite: where can I find your fiction writing..?]]></description>
		<content:encoded><![CDATA[<p>&gt;&#8221;I just gave up my last professional non-fiction writing gig last week&#8230;&#8221;</p>
<p>- OK, I&#8217;ll bite: where can I find your fiction writing..?</p>
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