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		<id>https://www.explainxkcd.com/wiki/index.php?action=history&amp;feed=atom&amp;title=2359%3A_Evidence_of_Alien_Life</id>
		<title>2359: Evidence of Alien Life - 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=2359%3A_Evidence_of_Alien_Life"/>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;action=history"/>
		<updated>2026-05-14T08:22:17Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=407305&amp;oldid=prev</id>
		<title>204.102.51.21: /* Explanation */ Removed an extra space</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=407305&amp;oldid=prev"/>
				<updated>2026-02-26T22:42:02Z</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; Removed an extra space&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&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 22:42, 26 February 2026&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-l9&quot; &gt;Line 9:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 9:&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;==Explanation==&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;==Explanation==&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 depicts a table of possible responses to new information on the possibility of alien life. It is presented in table form, with the columns representing three levels of caution in reaction to new evidence, and the rows representing the strength of new evidence, increasing down the table. Each intersection then shows a small scenario of what the response would be. The left-hand scenarios are extreme in their enthusiasm for alien life, but not out of the possibility space of reactions (at least for sensationalist headlines). The right-hand column scenarios are hyperbolic. The center column represents a reasonable {{Citation needed}} course of action.&amp;#160; When read from left to right, top to bottom, the bottom right panel is the punchline.&amp;#160; The joke comes from the ambiguity of the term &amp;quot;caution&amp;quot; in the column headers: when presented with definitive evidence of alien life in the form of a first contact situation, caution no longer refers to confidence in your results, but rather to the level of precautions taken against potential physical harm... unless you're the pair of people in the bottom right corner, who are so cautious in their assessment of alien life that they fail to take necessary caution for their own safety.&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 depicts a table of possible responses to new information on the possibility of alien life. It is presented in table form, with the columns representing three levels of caution in reaction to new evidence, and the rows representing the strength of new evidence, increasing down the table. Each intersection then shows a small scenario of what the response would be. The left-hand scenarios are extreme in their enthusiasm for alien life, but not out of the possibility space of reactions (at least for sensationalist headlines). The right-hand column scenarios are hyperbolic. The center column represents a reasonable{{Citation needed}} course of action.&amp;#160; When read from left to right, top to bottom, the bottom right panel is the punchline.&amp;#160; The joke comes from the ambiguity of the term &amp;quot;caution&amp;quot; in the column headers: when presented with definitive evidence of alien life in the form of a first contact situation, caution no longer refers to confidence in your results, but rather to the level of precautions taken against potential physical harm... unless you're the pair of people in the bottom right corner, who are so cautious in their assessment of alien life that they fail to take necessary caution for their own safety.&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;This comic was a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of {{w|life on Venus}}, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; &amp;#160;&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;This comic was a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of {{w|life on Venus}}, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>204.102.51.21</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=407304&amp;oldid=prev</id>
		<title>204.102.51.21: /* Explanation */ Moved &quot;citation needed&quot; tag to let it make more sense</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=407304&amp;oldid=prev"/>
				<updated>2026-02-26T22:41:44Z</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; Moved &amp;quot;citation needed&amp;quot; tag to let it make more sense&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&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 22:41, 26 February 2026&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-l9&quot; &gt;Line 9:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 9:&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;==Explanation==&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;==Explanation==&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 depicts a table of possible responses to new information on the possibility of alien life. It is presented in table form, with the columns representing three levels of caution in reaction to new evidence, and the rows representing the strength of new evidence, increasing down the table. Each intersection then shows a small scenario of what the response would be. The left-hand scenarios are extreme in their enthusiasm for alien life, but not out of the possibility space of reactions (at least for sensationalist headlines). The right-hand column scenarios are hyperbolic. The center column represents a reasonable &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;course of action.&lt;/del&gt;{{Citation needed}}&amp;#160; When read from left to right, top to bottom, the bottom right panel is the punchline.&amp;#160; The joke comes from the ambiguity of the term &amp;quot;caution&amp;quot; in the column headers: when presented with definitive evidence of alien life in the form of a first contact situation, caution no longer refers to confidence in your results, but rather to the level of precautions taken against potential physical harm... unless you're the pair of people in the bottom right corner, who are so cautious in their assessment of alien life that they fail to take necessary caution for their own safety.&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 depicts a table of possible responses to new information on the possibility of alien life. It is presented in table form, with the columns representing three levels of caution in reaction to new evidence, and the rows representing the strength of new evidence, increasing down the table. Each intersection then shows a small scenario of what the response would be. The left-hand scenarios are extreme in their enthusiasm for alien life, but not out of the possibility space of reactions (at least for sensationalist headlines). The right-hand column scenarios are hyperbolic. The center column represents a reasonable {{Citation needed}} &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;course of action. &lt;/ins&gt; When read from left to right, top to bottom, the bottom right panel is the punchline.&amp;#160; The joke comes from the ambiguity of the term &amp;quot;caution&amp;quot; in the column headers: when presented with definitive evidence of alien life in the form of a first contact situation, caution no longer refers to confidence in your results, but rather to the level of precautions taken against potential physical harm... unless you're the pair of people in the bottom right corner, who are so cautious in their assessment of alien life that they fail to take necessary caution for their own safety.&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;This comic was a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of {{w|life on Venus}}, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; &amp;#160;&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;This comic was a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of {{w|life on Venus}}, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>204.102.51.21</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=377667&amp;oldid=prev</id>
		<title>172.69.224.66: /* Description of responses */</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=377667&amp;oldid=prev"/>
				<updated>2025-05-13T04:30:12Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Description of responses&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&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 04:30, 13 May 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-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;/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;===Description of responses===&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;===Description of responses===&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;In the first row, an asteroid looks like an &amp;quot;alien probe&amp;quot;. This is based on a real observation and the responses to it: in 2017, {{w|'Oumuamua}} passed through the solar system, with a {{w|trajectory|hyperbolic trajectory}} that indicated interstellar origin. 'Oumuamua had an elongated shape and a slight acceleration not caused by gravity, which caused wild speculation as to the nature of our interstellar visitor. The &amp;quot;least cautious&amp;quot; response (which was seen many times, but not from serious astronomers) immediately jumps to the conclusion that the asteroid '''is''' an alien probe similar to the one presented in the science fiction classic {{w&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;|Rendezvous_with_Rama&lt;/del&gt;|Rendezvous with Rama}}. &amp;quot;Appropriate caution&amp;quot; causes the second observer to seek to discover more pertinent information about the asteroid. Some humor is derived from the &amp;quot;appropriately cautious&amp;quot; response including a firm and unambiguous &amp;quot;it's not aliens&amp;quot;. The &amp;quot;too cautious&amp;quot; response simply ignores the asteroid's interesting properties and instead diverts either into a {{w|I know that I know nothing|Socratic assertion}} or some other less relevant form of [https://youtu.be/vh5kZ4uIUC0 philosophical doubt]. The image of an astronomer looking through a telescope and being alarmed by seeing &amp;quot;something huge&amp;quot; which is actually very small and very close is [https://www.shutterstock.com/image-vector/men-pleased-fake-ufo-293395676 an old comic gag], but not &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;one &lt;/del&gt;that &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;happens &lt;/del&gt;in real life thanks to {{w|parallax}}.&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;In the first row, an asteroid looks like an &amp;quot;alien probe&amp;quot;. This is based on a real observation and the responses to it: in 2017, {{w|'Oumuamua}} passed through the solar system, with a {{w|trajectory|hyperbolic trajectory}} that indicated interstellar origin. 'Oumuamua had an elongated shape and a slight acceleration not caused by gravity, which caused wild speculation as to the nature of our interstellar visitor. The &amp;quot;least cautious&amp;quot; response (which was seen many times, but not from serious astronomers) immediately jumps to the conclusion that the asteroid '''is''' an alien probe similar to the one presented in the science fiction classic {{w|Rendezvous with Rama}}. &amp;quot;Appropriate caution&amp;quot; causes the second observer to seek to discover more pertinent information about the asteroid. Some humor is derived from the &amp;quot;appropriately cautious&amp;quot; response including a firm and unambiguous &amp;quot;it's not aliens&amp;quot;. The &amp;quot;too cautious&amp;quot; response simply ignores the asteroid's interesting properties and instead diverts either into a {{w|I know that I know nothing|Socratic assertion}} or some other less relevant form of [https://youtu.be/vh5kZ4uIUC0 philosophical doubt]. The image of an astronomer looking through a telescope and being alarmed by seeing &amp;quot;something huge&amp;quot; which is actually very small and very close is [https://www.shutterstock.com/image-vector/men-pleased-fake-ufo-293395676 an old comic gag] &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;and is given very similar to the wording of a [https://www.youtube.com/watch?v=MMiKyfd6hA0 memorable scene] from a {{w|Hell (Father Ted)|comedy show}}&lt;/ins&gt;, but not &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;something &lt;/ins&gt;that &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;should happen &lt;/ins&gt;in real life thanks to {{w|parallax}}.&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;The second row refers to the discovery of phosphine gas on Venus, with the &amp;quot;least cautious&amp;quot; response to simply conclude that there '''is''' life on Venus. The &amp;quot;appropriately cautious&amp;quot; response considers several possibilities, and calls for more research.&amp;#160; The &amp;quot;too cautious&amp;quot; response adds nothing at all to our understanding of Venus, comically understating the significance of the find beyond any point of usefulness (all atmospheres contain molecules; it's what makes an atmosphere an atmosphere and not a vacuum).&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 second row refers to the discovery of phosphine gas on Venus, with the &amp;quot;least cautious&amp;quot; response to simply conclude that there '''is''' life on Venus. The &amp;quot;appropriately cautious&amp;quot; response considers several possibilities, and calls for more research.&amp;#160; The &amp;quot;too cautious&amp;quot; response adds nothing at all to our understanding of Venus, comically understating the significance of the find beyond any point of usefulness (all atmospheres contain molecules; it's what makes an atmosphere an atmosphere and not a vacuum).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.69.224.66</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=377638&amp;oldid=prev</id>
		<title>172.68.3.29: /* Explanation */   Reorganized the whole thing.</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=377638&amp;oldid=prev"/>
				<updated>2025-05-12T21:38:28Z</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;   Reorganized the whole thing.&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&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 21:38, 12 May 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-l9&quot; &gt;Line 9:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 9:&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;==Explanation==&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;==Explanation==&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 depicts a table of possible responses to new information on the possibility of alien life. It is presented in table form, with the columns representing three &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;categories &lt;/del&gt;of reaction to new evidence, and the rows representing the strength of new evidence, increasing down the table. Each intersection then shows a small scenario of what the response would be. The left &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;and &lt;/del&gt;right-hand column scenarios are hyperbolic &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;in either their acceptance or denial&lt;/del&gt;. The center column represents a reasonable course of action.{{Citation needed}}&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 depicts a table of possible responses to new information on the possibility of alien life. It is presented in table form, with the columns representing three &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;levels &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;caution in &lt;/ins&gt;reaction to new evidence, and the rows representing the strength of new evidence, increasing down the table. Each intersection then shows a small scenario of what the response would be. The left&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;-hand scenarios are extreme in their enthusiasm for alien life, but not out of the possibility space of reactions (at least for sensationalist headlines). The &lt;/ins&gt;right-hand column scenarios are hyperbolic. The center column represents a reasonable course of action.{{Citation needed}} &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt; When read from left to right, top to bottom, the bottom right panel is the punchline.&amp;#160; The joke comes from the ambiguity of the term &amp;quot;caution&amp;quot; in the column headers: when presented with definitive evidence of alien life in the form of a first contact situation, caution no longer refers to confidence in your results, but rather to the level of precautions taken against potential physical harm... unless you're the pair of people in the bottom right corner, who are so cautious in their assessment of alien life that they fail to take necessary caution for their own safety.&lt;/ins&gt;&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 a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of {{w|life on Venus}}, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;However, while the discovery of phosphine is interesting, it is not nearly enough evidence to claim that &amp;quot;life has been found&amp;quot; on Venus, and likewise, it is comically understated to refer to the paper as &amp;quot;evidence of molecules&amp;quot; in Venus's atmosphere.&lt;/del&gt;&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 a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of {{w|life on Venus}}, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; &amp;#160;&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;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;The title text refers to &lt;/del&gt;an &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;action which &lt;/del&gt;is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;simultaneously too cautious &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;not cautious enough&lt;/del&gt;: the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;speaker is skeptical &lt;/del&gt;that &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;aliens exist&lt;/del&gt;, which &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;is usually an appropriate belief, except that presumably Megan and Cueball are in &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;situation presented in the bottom row, where aliens have landed right in front &lt;/del&gt;of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;them&lt;/del&gt;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt; Rather than modifying his belief &lt;/del&gt;(&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;presumably it's Cueball&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;who was the one &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;approach &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;aliens in &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;other panels), he expresses &lt;/del&gt;an &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;intention &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;approach &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;alleged aliens and attempt to remove their masks.&amp;#160; He believes that he will expose a human wearing a costume, perpetrating a &lt;/del&gt;{{&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;tvtropes&lt;/del&gt;|&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;ScoobyDooHoax&lt;/del&gt;|&amp;quot;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Scooby-Doo&lt;/del&gt;&amp;quot;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;-style hoax}}, but no matter what &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;outcome &lt;/del&gt;is&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, he&lt;/del&gt;'s &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;acting rashly&lt;/del&gt;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt; If &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;beings before him are aliens, he will be initiating a very aggressive first contact &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;will likely receive &lt;/del&gt;a &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;violent response, and even if the alien is not violent, Cueball might end up removing an environmental apparatus &lt;/del&gt;that &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;is protecting it from Earth's environment (&lt;/del&gt;or &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;vice versa)&lt;/del&gt;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt; On the other hand, even if the &lt;/del&gt;&amp;quot;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;aliens&lt;/del&gt;&amp;quot; &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;really are fakes, Cueball might end up injuring someone who &lt;/del&gt;is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;just playing a harmless joke (&lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;who'd want &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;keep ''some'' kind of mask on to reduce the spread of &lt;/del&gt;{{w|&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;COVID-19&lt;/del&gt;}}&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;). Also, aggressively reaching out to grab an impostor's mask and yanking on it might likewise produce a violent response&lt;/del&gt;.&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;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;===Description of responses===&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;In the first row, an asteroid looks like &lt;/ins&gt;an &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;alien probe&amp;quot;. This &lt;/ins&gt;is &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;based on a real observation &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the responses to it&lt;/ins&gt;: &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;in 2017, {{w|'Oumuamua}} passed through &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;solar system, with a {{w|trajectory|hyperbolic trajectory}} &lt;/ins&gt;that &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;indicated interstellar origin. 'Oumuamua had an elongated shape and a slight acceleration not caused by gravity&lt;/ins&gt;, which &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;caused wild speculation as to &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;nature &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;our interstellar visitor&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;The &amp;quot;least cautious&amp;quot; response &lt;/ins&gt;(&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;which was seen many times&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;but not from serious astronomers) immediately jumps &lt;/ins&gt;to the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;conclusion that &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;asteroid '''is''' &lt;/ins&gt;an &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;alien probe similar &lt;/ins&gt;to the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;one presented in the science fiction classic &lt;/ins&gt;{{&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;w&lt;/ins&gt;|&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Rendezvous_with_Rama&lt;/ins&gt;|&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Rendezvous with Rama}}. &lt;/ins&gt;&amp;quot;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Appropriate caution&lt;/ins&gt;&amp;quot; &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;causes the second observer to seek to discover more pertinent information about &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;asteroid. Some humor &lt;/ins&gt;is &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;derived from the &amp;quot;appropriately cautious&amp;quot; response including a firm and unambiguous &amp;quot;it&lt;/ins&gt;'s &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;not aliens&amp;quot;&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;The &amp;quot;too cautious&amp;quot; response simply ignores &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;asteroid's interesting properties &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;instead diverts either into &lt;/ins&gt;a &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;{{w|I know &lt;/ins&gt;that &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;I know nothing|Socratic assertion}} &lt;/ins&gt;or &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;some other less relevant form of [https://youtu.be/vh5kZ4uIUC0 philosophical doubt]&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;The image of an astronomer looking through a telescope and being alarmed by seeing &lt;/ins&gt;&amp;quot;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;something huge&lt;/ins&gt;&amp;quot; &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;which &lt;/ins&gt;is &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;actually very small &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;very close is [https://www.shutterstock.com/image-vector/men-pleased-fake-ufo-293395676 an old comic gag], but not one that happens in real life thanks &lt;/ins&gt;to {{w|&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;parallax&lt;/ins&gt;}}.&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;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;===Description &lt;/del&gt;of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;responses===&lt;/del&gt;&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;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;The second row refers to the discovery &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;phosphine gas on Venus, with &lt;/ins&gt;the &amp;quot;least cautious&amp;quot; response to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;simply conclude &lt;/ins&gt;that &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;there &lt;/ins&gt;'''is''' &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;life on Venus&lt;/ins&gt;. The &amp;quot;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;appropriately &lt;/ins&gt;cautious&amp;quot; response &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;considers several possibilities, &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;calls for more research&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt; The &lt;/ins&gt;&amp;quot;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;too &lt;/ins&gt;cautious&amp;quot; response &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;adds nothing at all &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;our understanding of Venus, comically understating &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;significance of &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;find beyond any point of usefulness (all atmospheres contain molecules; &lt;/ins&gt;it's &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;what makes an atmosphere an atmosphere and &lt;/ins&gt;not &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;a vacuum)&lt;/ins&gt;.&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 class=&quot;diffchange diffchange-inline&quot;&gt;In &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;first row, an asteroid looks like an &amp;quot;alien probe&amp;quot;. The &lt;/del&gt;&amp;quot;least cautious&amp;quot; response &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;immediately jumps &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the conclusion &lt;/del&gt;that &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the asteroid &lt;/del&gt;'''is''' &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;an alien probe&lt;/del&gt;. The &amp;quot;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;too &lt;/del&gt;cautious&amp;quot; response &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;simply ignores the possible implications of the asteroid &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;instead diverts either into a {{w|I know that I know nothing|Socratic assertion}} or some other less relevent form of [https://youtu&lt;/del&gt;.&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;be/vh5kZ4uIUC0 philosophical doubt], while the &lt;/del&gt;&amp;quot;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;appropriately &lt;/del&gt;cautious&amp;quot; response &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;seeks &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;discover more pertinent information about &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;asteroid. Some humor is derived from &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;appropriately cautious&amp;quot; response including a firm and unambiguous &amp;quot;&lt;/del&gt;it's not &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;aliens&amp;quot;&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;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;The &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;&lt;/del&gt;alien &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;probe&amp;quot; asteroid refers &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;{{w|'Oumuamua}}&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;which passed through &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Solar System in 2017.&amp;#160; 'Oumuamua's &lt;/del&gt;{{&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;w&lt;/del&gt;|&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;trajectory&lt;/del&gt;|&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;hyperbolic trajectory&lt;/del&gt;}} &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;indicated interstellar origin&lt;/del&gt;.&amp;#160; &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Because &lt;/del&gt;of the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;unusual elongated shape suggested &lt;/del&gt;by &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;its {{w|albedo}} (&lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;object was never visualized as more &lt;/del&gt;than &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;a point source of light) &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;indications of a slight non-gravity related acceleration, there were many wild speculations about &lt;/del&gt;'&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Oumuamua&lt;/del&gt;'&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;s &lt;/del&gt;origin, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;including &lt;/del&gt;it &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;being an alien probe similar &lt;/del&gt;to the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;one presented in &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;science fiction classic {{w|Rendezvous_with_Rama|Rendezvous with Rama}}&lt;/del&gt;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt; &lt;/del&gt;The &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;image of an astronomer looking through a telescope and being alarmed by seeing &amp;quot;something huge&amp;quot; which &lt;/del&gt;is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;actually very small and very close is [https://www.shutterstock.com/image-vector/men-pleased-fake-ufo-293395676 &lt;/del&gt;an &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;old comic gag], but the difference in parallax would immediately distinguish a close asteroid from a far one&lt;/del&gt;.&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;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;In the final row, aliens have arrived on Earth.&amp;#160; There is no longer reason to question the evidence of them. &lt;/ins&gt;The &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;insufficiently cautious approach is to immediately hug them. Most humans would not take kindly to being hugged without warning or consent by a stranger, and an &lt;/ins&gt;alien&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;'s reaction is impossible &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;predict.&amp;#160; If the aliens are peaceful&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Cueball could easily be causing a diplomatic crisis or exposing himself to unintentional danger. If &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;aliens are &lt;/ins&gt;{{&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;tvtropes&lt;/ins&gt;|&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;ToServeMan&lt;/ins&gt;|&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;here to hunt&lt;/ins&gt;}} &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;or otherwise make war, he has likely just gotten himself killed&lt;/ins&gt;.&amp;#160; &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;The more responsible approach is to consider ways to communicate at a distance. By doing so, the humans in this panel are attempting to maximize the benefits &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;first contact while minimizing the hazards.&amp;#160; In the punchline panel, &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;United Nations building is being vaporized &lt;/ins&gt;by &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;flying saucers with energy beams; &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;aliens are proving to be dangerous and warlike. But rather &lt;/ins&gt;than &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;focus on that, &amp;quot;overly cautious&amp;quot; Megan &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Cueball are still focused on whether or not they can say with confidence that the aliens exist. Though in one sense it could be reasonable to not embrace the &lt;/ins&gt;'&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;aliens&lt;/ins&gt;' &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;explanation immediately (the UFOs could be of human &lt;/ins&gt;origin&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;)&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;their phrasing makes &lt;/ins&gt;it &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;clear that this is not their reasoning. By referring &lt;/ins&gt;to the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;energy beams as &amp;quot;possible biosignatures&amp;quot; they make it clear they do not believe &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;beams are of terrestrial origin&lt;/ins&gt;. The &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;fact that they are even discussing this when they should be running for their lives &lt;/ins&gt;is &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;excessively pedantic to &lt;/ins&gt;an &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;absurd degree&lt;/ins&gt;.&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;The &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;second row refers &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the discovery of phosphine gas on Venus&lt;/del&gt;, with the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;least cautious&amp;quot; &lt;/del&gt;response to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;simply conclude that there '''&lt;/del&gt;is&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;''' life on Venus&lt;/del&gt;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;The &amp;quot;appropriately cautious&amp;quot; and &amp;quot;too cautious&amp;quot; responses provide more general conclusions about &amp;quot;molecules&amp;quot; on Venus&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;with &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;latter adding nothing at &lt;/del&gt;all &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;to our understanding&lt;/del&gt;.&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;The &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;destruction of human governmental buildings is a common trope in science fiction, both as a way for the aliens &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;show their military supremacy&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;and as a way to interfere &lt;/ins&gt;with the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;ability of humanity to co-ordinate a &lt;/ins&gt;response to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;an attack.&amp;#160; The United Nations building &lt;/ins&gt;is &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[https://nypost&lt;/ins&gt;.&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;com/2017/12/11/former-uk-official-reveals-plan-in-case-of-alien-invasion/ allegedly] the co-ordination centre for a worldwide response to an extraterrestrial incursion&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;so it makes sense for &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;aliens to attack it.&amp;#160; They also might be launching simultaneous attacks on &lt;/ins&gt;all &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;major governmental centers in the world&lt;/ins&gt;.&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;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;In the final row, aliens have arrived on Earth.&amp;#160; The insufficiently cautious approach is to immediately hug them.&amp;#160; Cueball might make a new friend, but he might also be mistaken as an attacker, or perhaps the aliens are {{tvtropes|ToServeMan|intending to make a meal}} of whoever approaches them.&amp;#160; The more responsible approach is to (consider attempting to) communicate at a distance.&amp;#160; In the final panel, the United Nations building is being vaporized by energy beams.&amp;#160; This is technically &amp;quot;just&amp;quot; a &amp;quot;possible biosignature&amp;quot;, as there are abiotic stellar events that produce energetic beams (although those are usually the size of planets or stars rather than buildings) and the beams could also be {{w|The Pink Panther Strikes Again|of human origin}}, but debating such semantics in the face of such destructive power seems excessively pedantic.&amp;#160; For that matter, even though that panel is presented as &amp;quot;too cautious&amp;quot;, it's only &amp;quot;too cautious&amp;quot; in the sense of &amp;quot;discussing the possibility of alien life&amp;quot;; Megan and Cueball are showing extreme ''lack'' of caution by remaining in the vicinity of an alien attack.&lt;/del&gt;&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;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;===Title text===&lt;/ins&gt;&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;The &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;destruction of human governmental buildings &lt;/del&gt;is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;a common trope &lt;/del&gt;in &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;science fiction films&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;as a way &lt;/del&gt;of aliens &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;removing &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;ability of humanity &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;co-ordinate a response &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;an attack&lt;/del&gt;.&amp;#160; &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;The United Nations building &lt;/del&gt;is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[https://nypost&lt;/del&gt;.&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;com/2017/12/11/former-uk-official-reveals-plan-in-case-of-alien-invasion/ allegedly] &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;co-ordination centre for &lt;/del&gt;a &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;worldwide &lt;/del&gt;response &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;to &lt;/del&gt;an &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;extraterrestrial incursion&lt;/del&gt;.&amp;#160; &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;However&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;since popular culture in &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;USA currently doesn't pay much attention to the United Nations&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;in American movies it &lt;/del&gt;is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;more commonly the White House or larger cities like New York or Los Angeles that get blown up by aliens. &lt;/del&gt;(&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;While the United Nations Secretariat Building is &lt;/del&gt;''&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;in&lt;/del&gt;'' &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;New York, it would be a general destruction &lt;/del&gt;of the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;area and only notable cultural landmarks – perhaps the Empire State Building &lt;/del&gt;or &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Chrysler Building – or the general financial/commercial/social disruption are more likely to be dwelt upon in detail&lt;/del&gt;.&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;)&lt;/del&gt;&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;The &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;title text refers to an action which is simultaneously too cautious and not cautious enough: the speaker is skeptical that aliens exist, which &lt;/ins&gt;is &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;usually an appropriate belief, except that Megan and Cueball are in the situation presented &lt;/ins&gt;in &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the bottom row&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;where aliens have landed right in front &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;them.&amp;#160; Rather than modifying his belief (presumably it's Cueball, who was the one to approach the &lt;/ins&gt;aliens &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;in &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;other panels), he expresses an intention &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;approach the alleged aliens and attempt &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;remove their masks&lt;/ins&gt;.&amp;#160; &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;He believes that he will expose a human wearing a costume, perpetrating a {{tvtropes|ScoobyDooHoax|&amp;quot;Scooby-Doo&amp;quot;-style hoax}}, but no matter what the outcome &lt;/ins&gt;is&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, he's acting rashly&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt; If &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;beings before him are aliens, he will be initiating a very aggressive first contact and will likely receive &lt;/ins&gt;a &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;violent &lt;/ins&gt;response&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, and even if the alien is not violent, Cueball might end up removing &lt;/ins&gt;an &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;environmental apparatus that is protecting it from Earth's environment (or vice versa)&lt;/ins&gt;.&amp;#160; &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;On the other hand&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;if &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;aliens&amp;quot; really are fakes&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Cueball might end up injuring someone who &lt;/ins&gt;is &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;just playing a harmless joke &lt;/ins&gt;(&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;and who'd want to keep &lt;/ins&gt;''&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;some&lt;/ins&gt;'' &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;kind &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;mask on to reduce &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;spread of {{w|COVID-19}}), &lt;/ins&gt;or &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;he might end up getting injured by a violent response&lt;/ins&gt;.&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;==Transcript==&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;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.68.3.29</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=364697&amp;oldid=prev</id>
		<title>162.158.193.45 at 01:57, 6 February 2025</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=364697&amp;oldid=prev"/>
				<updated>2025-02-06T01:57:35Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&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 01:57, 6 February 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-l72&quot; &gt;Line 72:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 72:&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:Aliens]]&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:Aliens]]&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:Charts]]&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:Charts]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Confusion matrices]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>162.158.193.45</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=352112&amp;oldid=prev</id>
		<title>Whoop whoop pull up: /* Transcript */</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=352112&amp;oldid=prev"/>
				<updated>2024-10-05T02:58:45Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Transcript&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&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 02:58, 5 October 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-l50&quot; &gt;Line 50:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 50:&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;:::[Column 3: Too Cautious]&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;:::[Column 3: Too Cautious]&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;::::[Same scene, except Ponytail's arm is slack by her side.]&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;::::[Same scene, except Ponytail's arm is slack by her side.]&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;::::Ponytail: There is growing evidence that the atmosphere &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;on &lt;/del&gt;Venus contains molecules.&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;::::Ponytail: There is growing evidence that the atmosphere &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;of &lt;/ins&gt;Venus contains molecules.&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;::[Row 3: Definite Evidence]&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;::[Row 3: Definite Evidence]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Whoop whoop pull up</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=344711&amp;oldid=prev</id>
		<title>172.68.110.5: /* Explanation */</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=344711&amp;oldid=prev"/>
				<updated>2024-06-20T09:56:55Z</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;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&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 09:56, 20 June 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-l11&quot; &gt;Line 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 11:&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;This comic depicts a table of possible responses to new information on the possibility of alien life. It is presented in table form, with the columns representing three categories of reaction to new evidence, and the rows representing the strength of new evidence, increasing down the table. Each intersection then shows a small scenario of what the response would be. The left and right-hand column scenarios are hyperbolic in either their acceptance or denial. The center column represents a reasonable course of action.{{Citation needed}}&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;This comic depicts a table of possible responses to new information on the possibility of alien life. It is presented in table form, with the columns representing three categories of reaction to new evidence, and the rows representing the strength of new evidence, increasing down the table. Each intersection then shows a small scenario of what the response would be. The left and right-hand column scenarios are hyperbolic in either their acceptance or denial. The center column represents a reasonable course of action.{{Citation needed}}&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 a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of life on Venus, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; However, while the discovery of phosphine is interesting, it is not nearly enough evidence to claim that &amp;quot;life has been found&amp;quot; on Venus, and likewise, it is comically understated to refer to the paper as &amp;quot;evidence of molecules&amp;quot; in Venus's atmosphere.&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 a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;{{w|&lt;/ins&gt;life on Venus&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;}}&lt;/ins&gt;, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; However, while the discovery of phosphine is interesting, it is not nearly enough evidence to claim that &amp;quot;life has been found&amp;quot; on Venus, and likewise, it is comically understated to refer to the paper as &amp;quot;evidence of molecules&amp;quot; in Venus's atmosphere.&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;The title text refers to an action which is simultaneously too cautious and not cautious enough: the speaker is skeptical that aliens exist, which is usually an appropriate belief, except that presumably Megan and Cueball are in the situation presented in the bottom row, where aliens have landed right in front of them.&amp;#160; Rather than modifying his belief (presumably it's Cueball, who was the one to approach the aliens in the other panels), he expresses an intention to approach the alleged aliens and attempt to remove their masks.&amp;#160; He believes that he will expose a human wearing a costume, perpetrating a {{tvtropes|ScoobyDooHoax|&amp;quot;Scooby-Doo&amp;quot;-style hoax}}, but no matter what the outcome is, he's acting rashly.&amp;#160; If the beings before him are aliens, he will be initiating a very aggressive first contact and will likely receive a violent response, and even if the alien is not violent, Cueball might end up removing an environmental apparatus that is protecting it from Earth's environment (or vice versa).&amp;#160; On the other hand, even if the &amp;quot;aliens&amp;quot; really are fakes, Cueball might end up injuring someone who is just playing a harmless joke (and who'd want to keep ''some'' kind of mask on to reduce the spread of {{w|COVID-19}}). Also, aggressively reaching out to grab an impostor's mask and yanking on it might likewise produce a violent response.&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 title text refers to an action which is simultaneously too cautious and not cautious enough: the speaker is skeptical that aliens exist, which is usually an appropriate belief, except that presumably Megan and Cueball are in the situation presented in the bottom row, where aliens have landed right in front of them.&amp;#160; Rather than modifying his belief (presumably it's Cueball, who was the one to approach the aliens in the other panels), he expresses an intention to approach the alleged aliens and attempt to remove their masks.&amp;#160; He believes that he will expose a human wearing a costume, perpetrating a {{tvtropes|ScoobyDooHoax|&amp;quot;Scooby-Doo&amp;quot;-style hoax}}, but no matter what the outcome is, he's acting rashly.&amp;#160; If the beings before him are aliens, he will be initiating a very aggressive first contact and will likely receive a violent response, and even if the alien is not violent, Cueball might end up removing an environmental apparatus that is protecting it from Earth's environment (or vice versa).&amp;#160; On the other hand, even if the &amp;quot;aliens&amp;quot; really are fakes, Cueball might end up injuring someone who is just playing a harmless joke (and who'd want to keep ''some'' kind of mask on to reduce the spread of {{w|COVID-19}}). Also, aggressively reaching out to grab an impostor's mask and yanking on it might likewise produce a violent response.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.68.110.5</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=329266&amp;oldid=prev</id>
		<title>Nitpicking: /* Explanation */ violent response</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=329266&amp;oldid=prev"/>
				<updated>2023-11-18T16:31:30Z</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; violent response&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&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 16:31, 18 November 2023&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-l13&quot; &gt;Line 13:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&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;This comic was a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of life on Venus, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; However, while the discovery of phosphine is interesting, it is not nearly enough evidence to claim that &amp;quot;life has been found&amp;quot; on Venus, and likewise, it is comically understated to refer to the paper as &amp;quot;evidence of molecules&amp;quot; in Venus's atmosphere.&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;This comic was a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of life on Venus, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; However, while the discovery of phosphine is interesting, it is not nearly enough evidence to claim that &amp;quot;life has been found&amp;quot; on Venus, and likewise, it is comically understated to refer to the paper as &amp;quot;evidence of molecules&amp;quot; in Venus's atmosphere.&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;The title text refers to an action which is simultaneously too cautious and not cautious enough: the speaker is skeptical that aliens exist, which is usually an appropriate belief, except that presumably Megan and Cueball are in the situation presented in the bottom row, where aliens have landed right in front of them.&amp;#160; Rather than modifying his belief (presumably it's Cueball, who was the one to approach the aliens in the other panels), he expresses an intention to approach the alleged aliens and attempt to remove their masks.&amp;#160; He believes that he will expose a human wearing a costume, perpetrating a {{tvtropes|ScoobyDooHoax|&amp;quot;Scooby-Doo&amp;quot;-style hoax}}, but no matter what the outcome is, he's acting rashly.&amp;#160; If the beings before him are aliens, he will be initiating a very aggressive first contact and will likely receive a violent response, and even if the alien is not violent, Cueball might end up removing an environmental apparatus that is protecting it from Earth's environment (or vice versa).&amp;#160; On the other hand, even if the &amp;quot;aliens&amp;quot; really are fakes, Cueball might end up injuring someone who is just playing a harmless joke (and who'd want to keep ''some'' kind of mask on to reduce the spread of {{w|COVID-19}}).&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;The title text refers to an action which is simultaneously too cautious and not cautious enough: the speaker is skeptical that aliens exist, which is usually an appropriate belief, except that presumably Megan and Cueball are in the situation presented in the bottom row, where aliens have landed right in front of them.&amp;#160; Rather than modifying his belief (presumably it's Cueball, who was the one to approach the aliens in the other panels), he expresses an intention to approach the alleged aliens and attempt to remove their masks.&amp;#160; He believes that he will expose a human wearing a costume, perpetrating a {{tvtropes|ScoobyDooHoax|&amp;quot;Scooby-Doo&amp;quot;-style hoax}}, but no matter what the outcome is, he's acting rashly.&amp;#160; If the beings before him are aliens, he will be initiating a very aggressive first contact and will likely receive a violent response, and even if the alien is not violent, Cueball might end up removing an environmental apparatus that is protecting it from Earth's environment (or vice versa).&amp;#160; On the other hand, even if the &amp;quot;aliens&amp;quot; really are fakes, Cueball might end up injuring someone who is just playing a harmless joke (and who'd want to keep ''some'' kind of mask on to reduce the spread of {{w|COVID-19}})&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;. Also, aggressively reaching out to grab an impostor's mask and yanking on it might likewise produce a violent response&lt;/ins&gt;.&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;===Description of responses===&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;===Description of responses===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Nitpicking</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=311712&amp;oldid=prev</id>
		<title>172.70.90.253: /* Explanation */ More appropriate punctuation.</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=311712&amp;oldid=prev"/>
				<updated>2023-04-27T09:21:36Z</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; More appropriate punctuation.&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&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 09:21, 27 April 2023&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-l9&quot; &gt;Line 9:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 9:&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;==Explanation==&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;==Explanation==&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 depicts a table of possible responses to new information on the possibility of alien life. It is presented in table form, with the columns representing three categories of reaction to new evidence, and the rows representing the strength of new evidence, increasing down the table. Each intersection then shows a small scenario of what the response would be. The left and right-hand column scenarios are hyperbolic in either their acceptance or denial. The center column represents a reasonable course of action{{&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;citation &lt;/del&gt;needed}}&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;.&lt;/del&gt;&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 depicts a table of possible responses to new information on the possibility of alien life. It is presented in table form, with the columns representing three categories of reaction to new evidence, and the rows representing the strength of new evidence, increasing down the table. Each intersection then shows a small scenario of what the response would be. The left and right-hand column scenarios are hyperbolic in either their acceptance or denial. The center column represents a reasonable course of action&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;.&lt;/ins&gt;{{&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Citation &lt;/ins&gt;needed}}&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;This comic was a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of life on Venus, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; However, while the discovery of phosphine is interesting, it is not nearly enough evidence to claim that &amp;quot;life has been found&amp;quot; on Venus, and likewise, it is comically understated to refer to the paper as &amp;quot;evidence of molecules&amp;quot; in Venus's atmosphere.&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;This comic was a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of life on Venus, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; However, while the discovery of phosphine is interesting, it is not nearly enough evidence to claim that &amp;quot;life has been found&amp;quot; on Venus, and likewise, it is comically understated to refer to the paper as &amp;quot;evidence of molecules&amp;quot; in Venus's atmosphere.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.70.90.253</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=311705&amp;oldid=prev</id>
		<title>172.70.86.153: Added appropriate [citation needed]</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2359:_Evidence_of_Alien_Life&amp;diff=311705&amp;oldid=prev"/>
				<updated>2023-04-27T08:26:11Z</updated>
		
		<summary type="html">&lt;p&gt;Added appropriate [citation needed]&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&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 08:26, 27 April 2023&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-l9&quot; &gt;Line 9:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 9:&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;==Explanation==&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;==Explanation==&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 depicts a table of possible responses to new information on the possibility of alien life. It is presented in table form, with the columns representing three categories of reaction to new evidence, and the rows representing the strength of new evidence, increasing down the table. Each intersection then shows a small scenario of what the response would be. The left and right-hand column scenarios are hyperbolic in either their acceptance or denial. The center column represents a reasonable course of action.&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 depicts a table of possible responses to new information on the possibility of alien life. It is presented in table form, with the columns representing three categories of reaction to new evidence, and the rows representing the strength of new evidence, increasing down the table. Each intersection then shows a small scenario of what the response would be. The left and right-hand column scenarios are hyperbolic in either their acceptance or denial. The center column represents a reasonable course of action&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;{{citation needed}}&lt;/ins&gt;.&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;This comic was a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of life on Venus, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; However, while the discovery of phosphine is interesting, it is not nearly enough evidence to claim that &amp;quot;life has been found&amp;quot; on Venus, and likewise, it is comically understated to refer to the paper as &amp;quot;evidence of molecules&amp;quot; in Venus's atmosphere.&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;This comic was a reaction to [https://www.nytimes.com/2020/09/14/science/venus-life-clouds.html the discovery of phosphine gas on Venus], which is where Ponytail's &amp;quot;V&amp;quot; figure in the second row comes from (a representation of the phosphine absorption feature). {{w|Phosphine}} is a molecule whose presence in the Venusian atmosphere came as a surprise. Light breaks phosphine down, meaning something must be producing it. However, there is no known abiotic mechanism on Venus that would produce the gas in the quantities observed. The phosphine could therefore be a sign of life on Venus, but more evidence is needed. Venus was also an unexpected place to find a possible sign of life &amp;amp;mdash; although it was {{w|Venus in fiction|a common pulp fiction setting in the early 20th-century}}, the arrival of the space probe era dashed hopes that the hidden surface might be, say, an exotic jungle (one of the more common pulp-fiction concepts). More recent efforts at finding life in the Solar System have mostly focused on Mars and various ice moons with suspected {{w|Ocean#Natural_satellites|subsurface oceans}}, but life more-or-less as we know it could exist within the upper atmosphere of Venus, which has more Earth-like conditions than the surface.&amp;#160; However, while the discovery of phosphine is interesting, it is not nearly enough evidence to claim that &amp;quot;life has been found&amp;quot; on Venus, and likewise, it is comically understated to refer to the paper as &amp;quot;evidence of molecules&amp;quot; in Venus's atmosphere.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.70.86.153</name></author>	</entry>

	</feed>