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		<id>https://www.explainxkcd.com/wiki/index.php?action=history&amp;feed=atom&amp;title=1591%3A_Bell%27s_Theorem</id>
		<title>1591: Bell's Theorem - Revision history</title>
		<link rel="self" type="application/atom+xml" href="https://www.explainxkcd.com/wiki/index.php?action=history&amp;feed=atom&amp;title=1591%3A_Bell%27s_Theorem"/>
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		<updated>2026-05-23T06:51:06Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
		<generator>MediaWiki 1.30.0</generator>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=402371&amp;oldid=prev</id>
		<title>Lp0 on fire: removed Category:Science using HotCat</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=402371&amp;oldid=prev"/>
				<updated>2025-12-24T15:35:30Z</updated>
		
		<summary type="html">&lt;p&gt;removed &lt;a href=&quot;/wiki/index.php/Category:Science&quot; title=&quot;Category:Science&quot;&gt;Category:Science&lt;/a&gt; using &lt;a href=&quot;http://commons.wikimedia.org/wiki/Help:Gadget-HotCat&quot; class=&quot;extiw&quot; title=&quot;commons:Help:Gadget-HotCat&quot;&gt;HotCat&lt;/a&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 15:35, 24 December 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l56&quot; &gt;Line 56:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 56:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Comics featuring Cueball]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Comics featuring Cueball]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Physics]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Physics]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Science]]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Lp0 on fire</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=335025&amp;oldid=prev</id>
		<title>172.69.115.137: /* Explanation */ What Xillenial put a hyphen between 'on' and 'line'?</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=335025&amp;oldid=prev"/>
				<updated>2024-02-14T02:31:04Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation: &lt;/span&gt; What Xillenial put a hyphen between &amp;#039;on&amp;#039; and &amp;#039;line&amp;#039;?&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 02:31, 14 February 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l14&quot; &gt;Line 14:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 14:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The punchline is that this is a special case known as Bell's Second Theorem: the idea that misunderstandings about what Bell's theorem means happen so readily that they actually violate the principle of locality.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The punchline is that this is a special case known as Bell's Second Theorem: the idea that misunderstandings about what Bell's theorem means happen so readily that they actually violate the principle of locality.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This comic was published on October 16, 2015, five days before an article about the first-ever&amp;#160; [http://www.nature.com/nature/journal/v526/n7575/full/nature15759.html Loophole-free Bell's Theorem test] was published in {{w|Nature magazine}} ([https://dx.doi.org/10.1038/nature15759 DOI:10.1038/nature15759]) (see also {{w|Bell test experiments}}). However, the paper was submitted almost two months earlier on the [http://arxiv.org/abs/1508.05949 24th of August] and could most likely be found &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;on-line &lt;/del&gt;before this comic was released. It was accepted by Nature already on the 28th of September, but was first published online October 21, 2015. [[Randall]] may very well have been aware of the imminent release of this paper, although it is peculiar that he did not wait until the paper was released. (This could potentially be a meta-joke, with the joke about Bell's Theorem being released before the paper about the relevant experiment was published)&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This comic was published on October 16, 2015, five days before an article about the first-ever&amp;#160; [http://www.nature.com/nature/journal/v526/n7575/full/nature15759.html Loophole-free Bell's Theorem test] was published in {{w|Nature magazine}} ([https://dx.doi.org/10.1038/nature15759 DOI:10.1038/nature15759]) (see also {{w|Bell test experiments}}). However, the paper was submitted almost two months earlier on the [http://arxiv.org/abs/1508.05949 24th of August] and could most likely be found &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;online &lt;/ins&gt;before this comic was released. It was accepted by Nature already on the 28th of September, but was first published online October 21, 2015. [[Randall]] may very well have been aware of the imminent release of this paper, although it is peculiar that he did not wait until the paper was released. (This could potentially be a meta-joke, with the joke about Bell's Theorem being released before the paper about the relevant experiment was published)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Another way to state Bell's theorem is &amp;quot;No physical theory of (finitely many) {{w|Local_hidden_variable_theory|local hidden variables}} can ever reproduce all of the predictions of quantum mechanics.&amp;quot; It says that a theoretical treatment that divides the universe up into separate (&amp;quot;local&amp;quot;) systems like this will always discard something about those systems' intercorrelations.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Another way to state Bell's theorem is &amp;quot;No physical theory of (finitely many) {{w|Local_hidden_variable_theory|local hidden variables}} can ever reproduce all of the predictions of quantum mechanics.&amp;quot; It says that a theoretical treatment that divides the universe up into separate (&amp;quot;local&amp;quot;) systems like this will always discard something about those systems' intercorrelations.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.69.115.137</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=283888&amp;oldid=prev</id>
		<title>Theusaf: Reverted edits by Donald Trump (talk) to last revision by CRLF</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=283888&amp;oldid=prev"/>
				<updated>2022-05-26T20:01:28Z</updated>
		
		<summary type="html">&lt;p&gt;Reverted edits by &lt;a href=&quot;/wiki/index.php/Special:Contributions/Donald_Trump&quot; title=&quot;Special:Contributions/Donald Trump&quot;&gt;Donald Trump&lt;/a&gt; (&lt;a href=&quot;/wiki/index.php?title=User_talk:Donald_Trump&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;User talk:Donald Trump (page does not exist)&quot;&gt;talk&lt;/a&gt;) to last revision by &lt;a href=&quot;/wiki/index.php/User:CRLF&quot; title=&quot;User:CRLF&quot;&gt;CRLF&lt;/a&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;amp;diff=283888&amp;amp;oldid=281431&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Theusaf</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=281431&amp;oldid=prev</id>
		<title>Donald Trump: Reverted edit by anti-crap user</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=281431&amp;oldid=prev"/>
				<updated>2022-05-26T18:52:28Z</updated>
		
		<summary type="html">&lt;p&gt;Reverted edit by anti-crap user&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;amp;diff=281431&amp;amp;oldid=280883&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Donald Trump</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=280883&amp;oldid=prev</id>
		<title>CRLF: Reverted vandalism with User:CRLF/OneClickUndo.js</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=280883&amp;oldid=prev"/>
				<updated>2022-05-26T18:04:39Z</updated>
		
		<summary type="html">&lt;p&gt;Reverted vandalism with &lt;a href=&quot;/wiki/index.php/User:CRLF/OneClickUndo.js&quot; title=&quot;User:CRLF/OneClickUndo.js&quot;&gt;User:CRLF/OneClickUndo.js&lt;/a&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;amp;diff=280883&amp;amp;oldid=277429&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>CRLF</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=277429&amp;oldid=prev</id>
		<title>Donald Trump: Crapped page</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=277429&amp;oldid=prev"/>
				<updated>2022-05-26T16:54:12Z</updated>
		
		<summary type="html">&lt;p&gt;Crapped page&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;amp;diff=277429&amp;amp;oldid=273030&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Donald Trump</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=273030&amp;oldid=prev</id>
		<title>Davidy22: Reverted edits by Explain xkcd server admin (talk) to last revision by Jacky720</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=273030&amp;oldid=prev"/>
				<updated>2022-05-21T02:53:23Z</updated>
		
		<summary type="html">&lt;p&gt;Reverted edits by &lt;a href=&quot;/wiki/index.php/Special:Contributions/Explain_xkcd_server_admin&quot; title=&quot;Special:Contributions/Explain xkcd server admin&quot;&gt;Explain xkcd server admin&lt;/a&gt; (&lt;a href=&quot;/wiki/index.php?title=User_talk:Explain_xkcd_server_admin&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;User talk:Explain xkcd server admin (page does not exist)&quot;&gt;talk&lt;/a&gt;) to last revision by &lt;a href=&quot;/wiki/index.php/User:Jacky720&quot; title=&quot;User:Jacky720&quot;&gt;Jacky720&lt;/a&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;amp;diff=273030&amp;amp;oldid=271616&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Davidy22</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=271616&amp;oldid=prev</id>
		<title>Explain xkcd server admin at 21:59, 20 May 2022</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=271616&amp;oldid=prev"/>
				<updated>2022-05-20T21:59:11Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;amp;diff=271616&amp;amp;oldid=261485&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Explain xkcd server admin</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=261485&amp;oldid=prev</id>
		<title>Jacky720: rv</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=261485&amp;oldid=prev"/>
				<updated>2022-05-04T23:43:44Z</updated>
		
		<summary type="html">&lt;p&gt;rv&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;amp;diff=261485&amp;amp;oldid=261459&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Jacky720</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=261459&amp;oldid=prev</id>
		<title>Ex Kay Cee Dee at 23:43, 4 May 2022</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;diff=261459&amp;oldid=prev"/>
				<updated>2022-05-04T23:43:38Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=1591:_Bell%27s_Theorem&amp;amp;diff=261459&amp;amp;oldid=245383&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Ex Kay Cee Dee</name></author>	</entry>

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