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		<updated>2026-04-25T01:47:41Z</updated>

		<summary type="html">&lt;p&gt;BloomWiki: Astro-Archaeology and the Search for Alien Ruins&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 01:47, 25 April 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-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;div style=&quot;background-color: #4B0082; color: #FFFFFF; padding: 20px; border-radius: 8px; margin-bottom: 15px;&quot;&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{BloomIntro}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{BloomIntro}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Astro-Archaeology and the Search for Alien Ruins is the &amp;quot;Study of the Cosmic Past&amp;quot;—the investigation of the &amp;quot;Astronomical and Archaeological Hypothesis&amp;quot; (~2010s–Future) that &amp;quot;Evidence&amp;quot; of &amp;quot;Extinct Extraterrestrial Civilizations&amp;quot; (Ruins, Artifacts, Technosignatures) &amp;quot;May Be&amp;quot; &amp;quot;Found&amp;quot; in our &amp;quot;Solar System&amp;quot; or &amp;quot;Across the Galaxy.&amp;quot; While &amp;quot;SETI&amp;quot; (see Article 689) &amp;quot;Listens&amp;quot; for &amp;quot;Active Signals,&amp;quot; **Astro-Archaeology** &amp;quot;Looks&amp;quot; for **&amp;quot;Dead Monuments.&amp;quot;** From &amp;quot;Alien Artifacts&amp;quot; and &amp;quot;Dyson Swarms&amp;quot; to &amp;quot;Lunar Anomalies&amp;quot; and &amp;quot;Interstellar Graveyards,&amp;quot; this field explores the &amp;quot;Legacy of Intelligence.&amp;quot; It is the science of &amp;quot;Techno-palaeontology,&amp;quot; explaining why &amp;quot;Dead Civilizations&amp;quot; &amp;quot;Might Be&amp;quot; &amp;quot;Easier to Find&amp;quot; than &amp;quot;Living Ones&amp;quot;—and how &amp;quot;Discovering&amp;quot; a &amp;quot;Single Shard&amp;quot; of &amp;quot;Alien Tech&amp;quot; &amp;quot;Would&amp;quot; &amp;quot;Bridge&amp;quot; the &amp;quot;Silence of the Universe.&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Astro-Archaeology and the Search for Alien Ruins is the &amp;quot;Study of the Cosmic Past&amp;quot;—the investigation of the &amp;quot;Astronomical and Archaeological Hypothesis&amp;quot; (~2010s–Future) that &amp;quot;Evidence&amp;quot; of &amp;quot;Extinct Extraterrestrial Civilizations&amp;quot; (Ruins, Artifacts, Technosignatures) &amp;quot;May Be&amp;quot; &amp;quot;Found&amp;quot; in our &amp;quot;Solar System&amp;quot; or &amp;quot;Across the Galaxy.&amp;quot; While &amp;quot;SETI&amp;quot; (see Article 689) &amp;quot;Listens&amp;quot; for &amp;quot;Active Signals,&amp;quot; **Astro-Archaeology** &amp;quot;Looks&amp;quot; for **&amp;quot;Dead Monuments.&amp;quot;** From &amp;quot;Alien Artifacts&amp;quot; and &amp;quot;Dyson Swarms&amp;quot; to &amp;quot;Lunar Anomalies&amp;quot; and &amp;quot;Interstellar Graveyards,&amp;quot; this field explores the &amp;quot;Legacy of Intelligence.&amp;quot; It is the science of &amp;quot;Techno-palaeontology,&amp;quot; explaining why &amp;quot;Dead Civilizations&amp;quot; &amp;quot;Might Be&amp;quot; &amp;quot;Easier to Find&amp;quot; than &amp;quot;Living Ones&amp;quot;—and how &amp;quot;Discovering&amp;quot; a &amp;quot;Single Shard&amp;quot; of &amp;quot;Alien Tech&amp;quot; &amp;quot;Would&amp;quot; &amp;quot;Bridge&amp;quot; the &amp;quot;Silence of the Universe.&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;/div&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;== Remembering ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;__TOC__&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;div style&lt;/ins&gt;=&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;background-color: #000080; color: #FFFFFF; padding: 20px; border-radius: 8px; margin-bottom: 15px;&quot;&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;= &amp;lt;span style=&quot;color: #FFFFFF;&quot;&amp;gt;&lt;/ins&gt;Remembering&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/span&amp;gt; &lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Astro-Archaeology&amp;#039;&amp;#039;&amp;#039; — (Techno-archaeology). The &amp;quot;Sub-field&amp;quot; of archaeology that &amp;quot;Searches&amp;quot; for &amp;quot;Physical Evidence&amp;quot; of &amp;quot;Past&amp;quot; or &amp;quot;Present&amp;quot; &amp;quot;Extraterrestrial Civilizations.&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Astro-Archaeology&amp;#039;&amp;#039;&amp;#039; — (Techno-archaeology). The &amp;quot;Sub-field&amp;quot; of archaeology that &amp;quot;Searches&amp;quot; for &amp;quot;Physical Evidence&amp;quot; of &amp;quot;Past&amp;quot; or &amp;quot;Present&amp;quot; &amp;quot;Extraterrestrial Civilizations.&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Technosignature&amp;#039;&amp;#039;&amp;#039; — (See Article 686). Any &amp;quot;Observable Evidence&amp;quot; of &amp;quot;Advanced Technology&amp;quot; (like &amp;#039;Dyson Spheres&amp;#039; or &amp;#039;Orbital Mirrors&amp;#039;) that &amp;quot;Could&amp;quot; be &amp;quot;Detected&amp;quot; by &amp;quot;Telescopes.&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Technosignature&amp;#039;&amp;#039;&amp;#039; — (See Article 686). Any &amp;quot;Observable Evidence&amp;quot; of &amp;quot;Advanced Technology&amp;quot; (like &amp;#039;Dyson Spheres&amp;#039; or &amp;#039;Orbital Mirrors&amp;#039;) that &amp;quot;Could&amp;quot; be &amp;quot;Detected&amp;quot; by &amp;quot;Telescopes.&amp;quot;&lt;/div&gt;&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 18:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Great Silence&amp;#039;&amp;#039;&amp;#039; — (See Article 689). The &amp;quot;Lack of Evidence&amp;quot; for aliens, which **Astro-Archaeology** &amp;quot;Attempts&amp;quot; to &amp;quot;Explain&amp;quot; by &amp;quot;Suggesting&amp;quot; they &amp;quot;Left&amp;quot; &amp;quot;Monuments&amp;quot; rather than &amp;quot;Signals.&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Great Silence&amp;#039;&amp;#039;&amp;#039; — (See Article 689). The &amp;quot;Lack of Evidence&amp;quot; for aliens, which **Astro-Archaeology** &amp;quot;Attempts&amp;quot; to &amp;quot;Explain&amp;quot; by &amp;quot;Suggesting&amp;quot; they &amp;quot;Left&amp;quot; &amp;quot;Monuments&amp;quot; rather than &amp;quot;Signals.&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Clarke’s Third Law&amp;#039;&amp;#039;&amp;#039; — (See Article 669). &amp;quot;Any sufficiently advanced technology is indistinguishable from magic.&amp;quot; (The &amp;quot;Archaeological Challenge&amp;quot; of &amp;quot;Recognizing&amp;quot; alien tech).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Clarke’s Third Law&amp;#039;&amp;#039;&amp;#039; — (See Article 669). &amp;quot;Any sufficiently advanced technology is indistinguishable from magic.&amp;quot; (The &amp;quot;Archaeological Challenge&amp;quot; of &amp;quot;Recognizing&amp;quot; alien tech).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;/div&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;== Understanding ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;div style&lt;/ins&gt;=&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;background-color: #006400; color: #FFFFFF; padding: 20px; border-radius: 8px; margin-bottom: 15px;&quot;&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;= &amp;lt;span style=&quot;color: #FFFFFF;&quot;&amp;gt;&lt;/ins&gt;Understanding&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/span&amp;gt; &lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Astro-archaeology is understood through &amp;#039;&amp;#039;&amp;#039;Longevity&amp;#039;&amp;#039;&amp;#039; and &amp;#039;&amp;#039;&amp;#039;Waste&amp;#039;&amp;#039;&amp;#039;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Astro-archaeology is understood through &amp;#039;&amp;#039;&amp;#039;Longevity&amp;#039;&amp;#039;&amp;#039; and &amp;#039;&amp;#039;&amp;#039;Waste&amp;#039;&amp;#039;&amp;#039;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&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-l39&quot;&gt;Line 39:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 46:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;The &amp;#039;Tabby&amp;#039;s Star&amp;#039; (Boyajian&amp;#039;s Star) Mystery&amp;#039;&amp;#039;&amp;#039;&amp;#039;: (2015). A &amp;quot;Star&amp;quot; that &amp;quot;Dimmed&amp;quot; in an &amp;quot;Erratic&amp;quot; and &amp;quot;Non-periodic&amp;quot; &amp;quot;Way.&amp;quot; One &amp;quot;Hypothesis&amp;quot; was a **&amp;quot;Dyson Swarm&amp;quot;** in &amp;quot;Construction&amp;quot; or &amp;quot;Disrepair.&amp;quot; It proved that &amp;quot;Searching&amp;quot; for **&amp;quot;Megastructures&amp;quot;** is now a **&amp;quot;Mainstream Scientific Activity.&amp;quot;**&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;The &amp;#039;Tabby&amp;#039;s Star&amp;#039; (Boyajian&amp;#039;s Star) Mystery&amp;#039;&amp;#039;&amp;#039;&amp;#039;: (2015). A &amp;quot;Star&amp;quot; that &amp;quot;Dimmed&amp;quot; in an &amp;quot;Erratic&amp;quot; and &amp;quot;Non-periodic&amp;quot; &amp;quot;Way.&amp;quot; One &amp;quot;Hypothesis&amp;quot; was a **&amp;quot;Dyson Swarm&amp;quot;** in &amp;quot;Construction&amp;quot; or &amp;quot;Disrepair.&amp;quot; It proved that &amp;quot;Searching&amp;quot; for **&amp;quot;Megastructures&amp;quot;** is now a **&amp;quot;Mainstream Scientific Activity.&amp;quot;**&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;/div&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;== Applying ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;div style&lt;/ins&gt;=&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;background-color: #8B0000; color: #FFFFFF; padding: 20px; border-radius: 8px; margin-bottom: 15px;&quot;&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;= &amp;lt;span style=&quot;color: #FFFFFF;&quot;&amp;gt;&lt;/ins&gt;Applying&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/span&amp;gt; &lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Modeling &amp;#039;The Artifact Probability&amp;#039; (Calculating &amp;#039;Chance of Finding&amp;#039; based on Duration and Radius):&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Modeling &amp;#039;The Artifact Probability&amp;#039; (Calculating &amp;#039;Chance of Finding&amp;#039; based on Duration and Radius):&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;syntaxhighlight lang=&amp;quot;python&amp;quot;&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;syntaxhighlight lang=&amp;quot;python&amp;quot;&amp;gt;&lt;/div&gt;&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-l65&quot;&gt;Line 65:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 74:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: &amp;#039;&amp;#039;&amp;#039;Oumuamua&amp;#039;&amp;#039;&amp;#039; → (2017). The &amp;quot;First&amp;quot; &amp;quot;Interstellar Object&amp;quot; &amp;quot;Detected&amp;quot; passing through our &amp;quot;Solar System.&amp;quot; Its &amp;quot;Strange Shape&amp;quot; and &amp;quot;Acceleration&amp;quot; led to &amp;quot;Debates&amp;quot; about whether it was an **&amp;quot;Alien Sail&amp;quot;** (see Article 690).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: &amp;#039;&amp;#039;&amp;#039;Oumuamua&amp;#039;&amp;#039;&amp;#039; → (2017). The &amp;quot;First&amp;quot; &amp;quot;Interstellar Object&amp;quot; &amp;quot;Detected&amp;quot; passing through our &amp;quot;Solar System.&amp;quot; Its &amp;quot;Strange Shape&amp;quot; and &amp;quot;Acceleration&amp;quot; led to &amp;quot;Debates&amp;quot; about whether it was an **&amp;quot;Alien Sail&amp;quot;** (see Article 690).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: &amp;#039;&amp;#039;&amp;#039;Breakthrough Listen / Search for Megastructures&amp;#039;&amp;#039;&amp;#039; → &amp;quot;Dedicated&amp;quot; &amp;quot;Funding&amp;quot; for &amp;quot;Astronomers&amp;quot; to &amp;quot;Analyze&amp;quot; &amp;quot;Anomalous Data&amp;quot; for **&amp;quot;Artificial Patterns.&amp;quot;**&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: &amp;#039;&amp;#039;&amp;#039;Breakthrough Listen / Search for Megastructures&amp;#039;&amp;#039;&amp;#039; → &amp;quot;Dedicated&amp;quot; &amp;quot;Funding&amp;quot; for &amp;quot;Astronomers&amp;quot; to &amp;quot;Analyze&amp;quot; &amp;quot;Anomalous Data&amp;quot; for **&amp;quot;Artificial Patterns.&amp;quot;**&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;/div&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;== Analyzing ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;div style&lt;/ins&gt;=&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;background-color: #8B4500; color: #FFFFFF; padding: 20px; border-radius: 8px; margin-bottom: 15px;&quot;&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;= &amp;lt;span style=&quot;color: #FFFFFF;&quot;&amp;gt;&lt;/ins&gt;Analyzing&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/span&amp;gt; &lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{| class=&amp;quot;wikitable&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{| class=&amp;quot;wikitable&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|+ Radio SETI vs. Astro-Archaeology&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|+ Radio SETI vs. Astro-Archaeology&lt;/div&gt;&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-l83&quot;&gt;Line 83:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 94:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;The Concept of &amp;quot;The Lurking Variable&amp;quot;&amp;#039;&amp;#039;&amp;#039;: Analyzing &amp;quot;The Bias.&amp;quot; (See Article 619). We &amp;quot;Only&amp;quot; &amp;quot;Search&amp;quot; for **&amp;quot;Technosignatures&amp;quot;** that **&amp;quot;We&amp;quot;** can &amp;quot;Imagine&amp;quot; (e.g. &amp;#039;Radio&amp;#039; or &amp;#039;Solar Power&amp;#039;). An &amp;quot;Advanced Alien&amp;quot; &amp;quot;Might&amp;quot; &amp;quot;Use&amp;quot; **&amp;quot;Dark Matter&amp;quot;** or **&amp;quot;Gravity Waves,&amp;quot;** &amp;quot;Making&amp;quot; their &amp;quot;Ruins&amp;quot; **&amp;quot;Invisible&amp;quot;** to our &amp;quot;Modern Tools.&amp;quot; &amp;quot;Silence&amp;quot; is **&amp;quot;Obsolescence.&amp;quot;**&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;The Concept of &amp;quot;The Lurking Variable&amp;quot;&amp;#039;&amp;#039;&amp;#039;: Analyzing &amp;quot;The Bias.&amp;quot; (See Article 619). We &amp;quot;Only&amp;quot; &amp;quot;Search&amp;quot; for **&amp;quot;Technosignatures&amp;quot;** that **&amp;quot;We&amp;quot;** can &amp;quot;Imagine&amp;quot; (e.g. &amp;#039;Radio&amp;#039; or &amp;#039;Solar Power&amp;#039;). An &amp;quot;Advanced Alien&amp;quot; &amp;quot;Might&amp;quot; &amp;quot;Use&amp;quot; **&amp;quot;Dark Matter&amp;quot;** or **&amp;quot;Gravity Waves,&amp;quot;** &amp;quot;Making&amp;quot; their &amp;quot;Ruins&amp;quot; **&amp;quot;Invisible&amp;quot;** to our &amp;quot;Modern Tools.&amp;quot; &amp;quot;Silence&amp;quot; is **&amp;quot;Obsolescence.&amp;quot;**&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;/div&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;== Evaluating ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;div style&lt;/ins&gt;=&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;background-color: #483D8B; color: #FFFFFF; padding: 20px; border-radius: 8px; margin-bottom: 15px;&quot;&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;= &amp;lt;span style=&quot;color: #FFFFFF;&quot;&amp;gt;&lt;/ins&gt;Evaluating&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/span&amp;gt; &lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Evaluating Astro-archaeology:&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Evaluating Astro-archaeology:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &amp;#039;&amp;#039;&amp;#039;Legitimacy&amp;#039;&amp;#039;&amp;#039;: Is &amp;quot;Searching for Aliens&amp;quot; &amp;quot;Good Science&amp;quot; or **&amp;quot;Pseudoscience&amp;quot;**? (The &amp;#039;Evidence&amp;#039; vs. &amp;#039;Belief&amp;#039; problem).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &amp;#039;&amp;#039;&amp;#039;Legitimacy&amp;#039;&amp;#039;&amp;#039;: Is &amp;quot;Searching for Aliens&amp;quot; &amp;quot;Good Science&amp;quot; or **&amp;quot;Pseudoscience&amp;quot;**? (The &amp;#039;Evidence&amp;#039; vs. &amp;#039;Belief&amp;#039; problem).&lt;/div&gt;&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-l90&quot;&gt;Line 90:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 103:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &amp;#039;&amp;#039;&amp;#039;Ownership&amp;#039;&amp;#039;&amp;#039;: Who **&amp;quot;Owns&amp;quot;** an &amp;quot;Alien Artifact&amp;quot; &amp;quot;Found&amp;quot; in space? (The &amp;#039;Antarctica&amp;#039; model vs. the &amp;#039;Salvage&amp;#039; model).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &amp;#039;&amp;#039;&amp;#039;Ownership&amp;#039;&amp;#039;&amp;#039;: Who **&amp;quot;Owns&amp;quot;** an &amp;quot;Alien Artifact&amp;quot; &amp;quot;Found&amp;quot; in space? (The &amp;#039;Antarctica&amp;#039; model vs. the &amp;#039;Salvage&amp;#039; model).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &amp;#039;&amp;#039;&amp;#039;Impact&amp;#039;&amp;#039;&amp;#039;: How would the &amp;quot;Discovery&amp;quot; of &amp;quot;Ancient Alien Ruins&amp;quot; &amp;quot;Change&amp;quot; the **&amp;quot;Human Ego&amp;quot;**?&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &amp;#039;&amp;#039;&amp;#039;Impact&amp;#039;&amp;#039;&amp;#039;: How would the &amp;quot;Discovery&amp;quot; of &amp;quot;Ancient Alien Ruins&amp;quot; &amp;quot;Change&amp;quot; the **&amp;quot;Human Ego&amp;quot;**?&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;/div&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;== Creating ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;div style&lt;/ins&gt;=&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;background-color: #2F4F4F; color: #FFFFFF; padding: 20px; border-radius: 8px; margin-bottom: 15px;&quot;&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;= &amp;lt;span style=&quot;color: #FFFFFF;&quot;&amp;gt;&lt;/ins&gt;Creating&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/span&amp;gt; &lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Future Frontiers:&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Future Frontiers:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &amp;#039;&amp;#039;&amp;#039;The &amp;#039;Artifact&amp;#039; Hunter AI&amp;#039;&amp;#039;&amp;#039;: (See Article 08). An AI that &amp;quot;Mines&amp;quot; **&amp;quot;Gigabytes&amp;quot;** of &amp;quot;Lunar and Martian Imagery&amp;quot; &amp;quot;Searching&amp;quot; for **&amp;quot;Geometric Anomalies&amp;quot;** (Ruins).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &amp;#039;&amp;#039;&amp;#039;The &amp;#039;Artifact&amp;#039; Hunter AI&amp;#039;&amp;#039;&amp;#039;: (See Article 08). An AI that &amp;quot;Mines&amp;quot; **&amp;quot;Gigabytes&amp;quot;** of &amp;quot;Lunar and Martian Imagery&amp;quot; &amp;quot;Searching&amp;quot; for **&amp;quot;Geometric Anomalies&amp;quot;** (Ruins).&lt;/div&gt;&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-l108&quot;&gt;Line 108:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 123:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Future Studies]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Future Studies]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Technology]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Technology]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&amp;lt;/div&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Wordpad</name></author>
	</entry>
	<entry>
		<id>http://bloomwiki.org/index.php?title=Astro-Archaeology_and_the_Search_for_Alien_Ruins&amp;diff=2276&amp;oldid=prev</id>
		<title>Wordpad: BloomWiki: Astro-Archaeology and the Search for Alien Ruins</title>
		<link rel="alternate" type="text/html" href="http://bloomwiki.org/index.php?title=Astro-Archaeology_and_the_Search_for_Alien_Ruins&amp;diff=2276&amp;oldid=prev"/>
		<updated>2026-04-23T17:49:57Z</updated>

		<summary type="html">&lt;p&gt;BloomWiki: Astro-Archaeology and the Search for Alien Ruins&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{BloomIntro}}&lt;br /&gt;
Astro-Archaeology and the Search for Alien Ruins is the &amp;quot;Study of the Cosmic Past&amp;quot;—the investigation of the &amp;quot;Astronomical and Archaeological Hypothesis&amp;quot; (~2010s–Future) that &amp;quot;Evidence&amp;quot; of &amp;quot;Extinct Extraterrestrial Civilizations&amp;quot; (Ruins, Artifacts, Technosignatures) &amp;quot;May Be&amp;quot; &amp;quot;Found&amp;quot; in our &amp;quot;Solar System&amp;quot; or &amp;quot;Across the Galaxy.&amp;quot; While &amp;quot;SETI&amp;quot; (see Article 689) &amp;quot;Listens&amp;quot; for &amp;quot;Active Signals,&amp;quot; **Astro-Archaeology** &amp;quot;Looks&amp;quot; for **&amp;quot;Dead Monuments.&amp;quot;** From &amp;quot;Alien Artifacts&amp;quot; and &amp;quot;Dyson Swarms&amp;quot; to &amp;quot;Lunar Anomalies&amp;quot; and &amp;quot;Interstellar Graveyards,&amp;quot; this field explores the &amp;quot;Legacy of Intelligence.&amp;quot; It is the science of &amp;quot;Techno-palaeontology,&amp;quot; explaining why &amp;quot;Dead Civilizations&amp;quot; &amp;quot;Might Be&amp;quot; &amp;quot;Easier to Find&amp;quot; than &amp;quot;Living Ones&amp;quot;—and how &amp;quot;Discovering&amp;quot; a &amp;quot;Single Shard&amp;quot; of &amp;quot;Alien Tech&amp;quot; &amp;quot;Would&amp;quot; &amp;quot;Bridge&amp;quot; the &amp;quot;Silence of the Universe.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
== Remembering ==&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Astro-Archaeology&amp;#039;&amp;#039;&amp;#039; — (Techno-archaeology). The &amp;quot;Sub-field&amp;quot; of archaeology that &amp;quot;Searches&amp;quot; for &amp;quot;Physical Evidence&amp;quot; of &amp;quot;Past&amp;quot; or &amp;quot;Present&amp;quot; &amp;quot;Extraterrestrial Civilizations.&amp;quot;&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Technosignature&amp;#039;&amp;#039;&amp;#039; — (See Article 686). Any &amp;quot;Observable Evidence&amp;quot; of &amp;quot;Advanced Technology&amp;quot; (like &amp;#039;Dyson Spheres&amp;#039; or &amp;#039;Orbital Mirrors&amp;#039;) that &amp;quot;Could&amp;quot; be &amp;quot;Detected&amp;quot; by &amp;quot;Telescopes.&amp;quot;&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Artifact&amp;#039;&amp;#039;&amp;#039; (Alien) — A &amp;quot;Human-made&amp;quot; (or Alien-made) &amp;quot;Object&amp;quot; &amp;quot;Found&amp;quot; in space that &amp;quot;Shows&amp;quot; &amp;quot;Signs&amp;quot; of &amp;quot;Artificial Origin.&amp;quot;&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Dyson Swarm&amp;#039;&amp;#039;&amp;#039; — (See Article 698). A &amp;quot;Large Collection&amp;quot; of &amp;quot;Solar-power Satellites&amp;quot; &amp;quot;Orbiting&amp;quot; a star, &amp;quot;Potentialy&amp;quot; &amp;quot;Detectable&amp;quot; by their **&amp;quot;Waste Heat&amp;quot;** (Infrared signature).&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;SETA&amp;#039;&amp;#039;&amp;#039; — (Search for Extraterrestrial Artifacts). The &amp;quot;Sub-discipline&amp;quot; &amp;quot;Specifically&amp;quot; &amp;quot;Focused&amp;quot; on &amp;quot;Finding&amp;quot; &amp;quot;Alien Probes&amp;quot; or &amp;quot;Junk&amp;quot; in our &amp;quot;Solar System.&amp;quot;&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Necrosignature&amp;#039;&amp;#039;&amp;#039; — The &amp;quot;Hypothetical&amp;quot; &amp;quot;Evidence&amp;quot; of a &amp;quot;Civilization&amp;quot; that has &amp;quot;Destroyed Itself&amp;quot; (e.g. &amp;#039;Atmospheric pollution&amp;#039; from &amp;#039;Nuclear war&amp;#039; found on an exoplanet).&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Bracewell Probe&amp;#039;&amp;#039;&amp;#039; — A &amp;quot;Self-replicating&amp;quot; &amp;quot;Alien Probe&amp;quot; &amp;quot;Designed&amp;quot; to &amp;quot;Wait&amp;quot; in a &amp;quot;Solar System&amp;quot; until it &amp;quot;Detects&amp;quot; &amp;quot;Intelligence&amp;quot; and then &amp;quot;Initiate Contact.&amp;quot;&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Megastructure&amp;#039;&amp;#039;&amp;#039; — (See Article 586). A &amp;quot;Massive&amp;quot; &amp;quot;Artificial Construction&amp;quot; in space (like &amp;#039;Ringworlds&amp;#039; or &amp;#039;Stellar Engines&amp;#039;).&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Great Silence&amp;#039;&amp;#039;&amp;#039; — (See Article 689). The &amp;quot;Lack of Evidence&amp;quot; for aliens, which **Astro-Archaeology** &amp;quot;Attempts&amp;quot; to &amp;quot;Explain&amp;quot; by &amp;quot;Suggesting&amp;quot; they &amp;quot;Left&amp;quot; &amp;quot;Monuments&amp;quot; rather than &amp;quot;Signals.&amp;quot;&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Clarke’s Third Law&amp;#039;&amp;#039;&amp;#039; — (See Article 669). &amp;quot;Any sufficiently advanced technology is indistinguishable from magic.&amp;quot; (The &amp;quot;Archaeological Challenge&amp;quot; of &amp;quot;Recognizing&amp;quot; alien tech).&lt;br /&gt;
&lt;br /&gt;
== Understanding ==&lt;br /&gt;
Astro-archaeology is understood through &amp;#039;&amp;#039;&amp;#039;Longevity&amp;#039;&amp;#039;&amp;#039; and &amp;#039;&amp;#039;&amp;#039;Waste&amp;#039;&amp;#039;&amp;#039;.&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;1. The &amp;quot;Monument&amp;quot; Strategy (Longevity)&amp;#039;&amp;#039;&amp;#039;:&lt;br /&gt;
&amp;quot;Stone lasts longer than Radio.&amp;quot;&lt;br /&gt;
* (See Article 131). **Radio Signals** (SETI) &amp;quot;Travel&amp;quot; at the &amp;quot;Speed of Light&amp;quot; and &amp;quot;Vanish&amp;quot; &amp;quot;Instantly&amp;quot; once the &amp;quot;Broadcaster&amp;quot; &amp;quot;Stops.&amp;quot;&lt;br /&gt;
* **Artifacts** (Megastructures or Probes) can **&amp;quot;Last&amp;quot;** for **&amp;quot;Billions of Years&amp;quot;** in the &amp;quot;Vacuum of Space.&amp;quot;&lt;br /&gt;
* (See Article 689). We are &amp;quot;More Likely&amp;quot; to &amp;quot;Find&amp;quot; the **&amp;quot;Pyramids&amp;quot;** of the &amp;quot;Galaxy&amp;quot; than a &amp;quot;Phone Call.&amp;quot;&lt;br /&gt;
* &amp;quot;Truth&amp;quot; is **&amp;quot;Physical.&amp;quot;**&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;2. The &amp;quot;Heat&amp;quot; of Progress (Waste)&amp;#039;&amp;#039;&amp;#039;:&lt;br /&gt;
&amp;quot;You can&amp;#039;t hide your Energy.&amp;quot;&lt;br /&gt;
* (See Article 123). According to **Thermodynamics**, &amp;quot;Any Machine&amp;quot; that &amp;quot;Uses Energy&amp;quot; &amp;quot;Must&amp;quot; &amp;quot;Release&amp;quot; **&amp;quot;Waste Heat&amp;quot;** (Infrared radiation).&lt;br /&gt;
* A **Type II Civilization** (see Article 698) &amp;quot;Capturing&amp;quot; &amp;quot;All&amp;quot; of a &amp;quot;Star&amp;#039;s Light&amp;quot; would &amp;quot;Look&amp;quot; like an **&amp;quot;Infrared Point&amp;quot;** in the sky.&lt;br /&gt;
* **Astro-archaeologists** &amp;quot;Scan&amp;quot; &amp;quot;Stellar Surveys&amp;quot; for &amp;quot;Excessive Heat&amp;quot; that &amp;quot;Has No&amp;quot; &amp;quot;Natural Explanation.&amp;quot;&lt;br /&gt;
* &amp;quot;Intelligence&amp;quot; is **&amp;quot;Thermal.&amp;quot;**&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;3. The &amp;quot;Solar System&amp;quot; Search (Local Search)&amp;#039;&amp;#039;&amp;#039;:&lt;br /&gt;
&amp;quot;Checking our own Backyard.&amp;quot;&lt;br /&gt;
* (See Article 201). **SETI** &amp;quot;Focuses&amp;quot; on &amp;quot;Other Stars.&amp;quot;&lt;br /&gt;
* **SETA** &amp;quot;Argues&amp;quot; that &amp;quot;Alien Probes&amp;quot; &amp;quot;Could&amp;quot; be &amp;quot;Hiding&amp;quot; in our **&amp;quot;Lagrange Points&amp;quot;** (Stable orbits) or on the **&amp;quot;Far Side of the Moon.&amp;quot;**&lt;br /&gt;
* We &amp;quot;Search&amp;quot; for **&amp;quot;Non-Natural Reflection Patterns&amp;quot;** or **&amp;quot;Radio Echoes&amp;quot;** from &amp;quot;Nearby Objects.&amp;quot;&lt;br /&gt;
* &amp;quot;Discovery&amp;quot; may be **&amp;quot;Close Home.&amp;quot;**&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;The &amp;#039;Tabby&amp;#039;s Star&amp;#039; (Boyajian&amp;#039;s Star) Mystery&amp;#039;&amp;#039;&amp;#039;&amp;#039;: (2015). A &amp;quot;Star&amp;quot; that &amp;quot;Dimmed&amp;quot; in an &amp;quot;Erratic&amp;quot; and &amp;quot;Non-periodic&amp;quot; &amp;quot;Way.&amp;quot; One &amp;quot;Hypothesis&amp;quot; was a **&amp;quot;Dyson Swarm&amp;quot;** in &amp;quot;Construction&amp;quot; or &amp;quot;Disrepair.&amp;quot; It proved that &amp;quot;Searching&amp;quot; for **&amp;quot;Megastructures&amp;quot;** is now a **&amp;quot;Mainstream Scientific Activity.&amp;quot;**&lt;br /&gt;
&lt;br /&gt;
== Applying ==&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Modeling &amp;#039;The Artifact Probability&amp;#039; (Calculating &amp;#039;Chance of Finding&amp;#039; based on Duration and Radius):&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
&amp;lt;syntaxhighlight lang=&amp;quot;python&amp;quot;&amp;gt;&lt;br /&gt;
def evaluate_artifact_search(civilization_duration_yrs, star_radius_ly):&lt;br /&gt;
    &amp;quot;&amp;quot;&amp;quot;&lt;br /&gt;
    Shows why &amp;#039;Ruins&amp;#039; are more likely than &amp;#039;Signals&amp;#039;.&lt;br /&gt;
    &amp;quot;&amp;quot;&amp;quot;&lt;br /&gt;
    # Signal window is the duration of the broadcast&lt;br /&gt;
    # Artifact window is the durability of the structure (e.g. 1 Billion Years)&lt;br /&gt;
    artifact_durability = 1e9 &lt;br /&gt;
    &lt;br /&gt;
    # Probability ~ (Volume * Duration)&lt;br /&gt;
    ratio = artifact_durability / civilization_duration_yrs&lt;br /&gt;
    &lt;br /&gt;
    return f&amp;quot;SEARCH STATUS: Artifacts are {int(ratio)}x more likely to exist in the &amp;#039;Search Volume&amp;#039; than active signals.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
# Case: A civilization that broadcasts for 100 years but leaves a Dyson Sphere&lt;br /&gt;
print(evaluate_artifact_search(100, 100))&lt;br /&gt;
&amp;lt;/syntaxhighlight&amp;gt;&lt;br /&gt;
&lt;br /&gt;
; Archaeological Landmarks&lt;br /&gt;
: &amp;#039;&amp;#039;&amp;#039;The &amp;#039;Kardashev&amp;#039; Classification&amp;#039;&amp;#039;&amp;#039; → (See Article 698). The &amp;quot;Framework&amp;quot; for &amp;quot;Knowing&amp;quot; **&amp;quot;What Scale&amp;quot;** of &amp;quot;Ruins&amp;quot; to &amp;quot;Look For.&amp;quot;&lt;br /&gt;
: &amp;#039;&amp;#039;&amp;#039;The &amp;#039;WISE&amp;#039; Mission&amp;#039;&amp;#039;&amp;#039; → (NASA). A &amp;quot;Space Telescope&amp;quot; that &amp;quot;Mapped&amp;quot; the &amp;quot;Infrared Sky,&amp;quot; &amp;quot;Allowing&amp;quot; for the &amp;quot;First&amp;quot; &amp;quot;Global Search&amp;quot; for **&amp;quot;Dyson Spheres.&amp;quot;**&lt;br /&gt;
: &amp;#039;&amp;#039;&amp;#039;Oumuamua&amp;#039;&amp;#039;&amp;#039; → (2017). The &amp;quot;First&amp;quot; &amp;quot;Interstellar Object&amp;quot; &amp;quot;Detected&amp;quot; passing through our &amp;quot;Solar System.&amp;quot; Its &amp;quot;Strange Shape&amp;quot; and &amp;quot;Acceleration&amp;quot; led to &amp;quot;Debates&amp;quot; about whether it was an **&amp;quot;Alien Sail&amp;quot;** (see Article 690).&lt;br /&gt;
: &amp;#039;&amp;#039;&amp;#039;Breakthrough Listen / Search for Megastructures&amp;#039;&amp;#039;&amp;#039; → &amp;quot;Dedicated&amp;quot; &amp;quot;Funding&amp;quot; for &amp;quot;Astronomers&amp;quot; to &amp;quot;Analyze&amp;quot; &amp;quot;Anomalous Data&amp;quot; for **&amp;quot;Artificial Patterns.&amp;quot;**&lt;br /&gt;
&lt;br /&gt;
== Analyzing ==&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|+ Radio SETI vs. Astro-Archaeology&lt;br /&gt;
! Feature !! Radio SETI (Active) !! Astro-Archaeology (Passive)&lt;br /&gt;
|-&lt;br /&gt;
| Target || &amp;quot;Information (Waves)&amp;quot; || &amp;quot;Infrastructure (Matter)&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| Longevity || &amp;quot;Transient (Light-speed)&amp;quot; || &amp;quot;Permanent (Millennial-scale)&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| Requirement || &amp;quot;Active Cooperation (They must shout)&amp;quot; || &amp;quot;Blind Chance (We must find the junk)&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| Reach || &amp;quot;Limited to the &amp;#039;Light Cone&amp;#039;&amp;quot; || &amp;quot;Galactic Reach (Across Time)&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| Analogy || &amp;#039;Waiting for a Radio Call&amp;#039; || &amp;#039;Digging up a Fossil&amp;#039;&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;The Concept of &amp;quot;The Lurking Variable&amp;quot;&amp;#039;&amp;#039;&amp;#039;: Analyzing &amp;quot;The Bias.&amp;quot; (See Article 619). We &amp;quot;Only&amp;quot; &amp;quot;Search&amp;quot; for **&amp;quot;Technosignatures&amp;quot;** that **&amp;quot;We&amp;quot;** can &amp;quot;Imagine&amp;quot; (e.g. &amp;#039;Radio&amp;#039; or &amp;#039;Solar Power&amp;#039;). An &amp;quot;Advanced Alien&amp;quot; &amp;quot;Might&amp;quot; &amp;quot;Use&amp;quot; **&amp;quot;Dark Matter&amp;quot;** or **&amp;quot;Gravity Waves,&amp;quot;** &amp;quot;Making&amp;quot; their &amp;quot;Ruins&amp;quot; **&amp;quot;Invisible&amp;quot;** to our &amp;quot;Modern Tools.&amp;quot; &amp;quot;Silence&amp;quot; is **&amp;quot;Obsolescence.&amp;quot;**&lt;br /&gt;
&lt;br /&gt;
== Evaluating ==&lt;br /&gt;
Evaluating Astro-archaeology:&lt;br /&gt;
# &amp;#039;&amp;#039;&amp;#039;Legitimacy&amp;#039;&amp;#039;&amp;#039;: Is &amp;quot;Searching for Aliens&amp;quot; &amp;quot;Good Science&amp;quot; or **&amp;quot;Pseudoscience&amp;quot;**? (The &amp;#039;Evidence&amp;#039; vs. &amp;#039;Belief&amp;#039; problem).&lt;br /&gt;
# &amp;#039;&amp;#039;&amp;#039;Risk&amp;#039;&amp;#039;&amp;#039;: (See Article 689). Is &amp;quot;Finding&amp;quot; a &amp;quot;Dead Civilization&amp;quot; a **&amp;quot;Warning&amp;quot;** (The &amp;#039;Great Filter&amp;#039; is ahead) or a **&amp;quot;Gift&amp;quot;** (Technology to copy)?&lt;br /&gt;
# &amp;#039;&amp;#039;&amp;#039;Ownership&amp;#039;&amp;#039;&amp;#039;: Who **&amp;quot;Owns&amp;quot;** an &amp;quot;Alien Artifact&amp;quot; &amp;quot;Found&amp;quot; in space? (The &amp;#039;Antarctica&amp;#039; model vs. the &amp;#039;Salvage&amp;#039; model).&lt;br /&gt;
# &amp;#039;&amp;#039;&amp;#039;Impact&amp;#039;&amp;#039;&amp;#039;: How would the &amp;quot;Discovery&amp;quot; of &amp;quot;Ancient Alien Ruins&amp;quot; &amp;quot;Change&amp;quot; the **&amp;quot;Human Ego&amp;quot;**?&lt;br /&gt;
&lt;br /&gt;
== Creating ==&lt;br /&gt;
Future Frontiers:&lt;br /&gt;
# &amp;#039;&amp;#039;&amp;#039;The &amp;#039;Artifact&amp;#039; Hunter AI&amp;#039;&amp;#039;&amp;#039;: (See Article 08). An AI that &amp;quot;Mines&amp;quot; **&amp;quot;Gigabytes&amp;quot;** of &amp;quot;Lunar and Martian Imagery&amp;quot; &amp;quot;Searching&amp;quot; for **&amp;quot;Geometric Anomalies&amp;quot;** (Ruins).&lt;br /&gt;
# &amp;#039;&amp;#039;&amp;#039;VR &amp;#039;Dyson Sphere&amp;#039; Walkthrough&amp;#039;&amp;#039;&amp;#039;: (See Article 604). A &amp;quot;Walkthrough&amp;quot; of a **&amp;quot;Megastructure&amp;quot;** to &amp;quot;Understand&amp;quot; its **&amp;quot;Geometry and Energy Flow.&amp;quot;**&lt;br /&gt;
# &amp;#039;&amp;#039;&amp;#039;The &amp;#039;Universal&amp;#039; Technosignature Ledger&amp;#039;&amp;#039;&amp;#039;: (See Article 533). A &amp;quot;Blockchain&amp;quot; that &amp;quot;Stores&amp;quot; **&amp;quot;Every Anomalous Signal&amp;quot;** for &amp;quot;Open-Source Verification&amp;quot; by the &amp;quot;Global Scientific Community.&amp;quot;&lt;br /&gt;
# &amp;#039;&amp;#039;&amp;#039;Global &amp;#039;Contact&amp;#039; Readiness DAO&amp;#039;&amp;#039;&amp;#039;: (See Article 630). A &amp;quot;Community&amp;quot; that &amp;quot;Develops&amp;quot; &amp;quot;Robots&amp;quot; to **&amp;quot;Retrieve and Analyze&amp;quot;** &amp;quot;Artifacts&amp;quot; &amp;quot;Safely&amp;quot; (To avoid &amp;#039;Bio-hazards&amp;#039; - see Article 595).&lt;br /&gt;
&lt;br /&gt;
[[Category:Arts]]&lt;br /&gt;
[[Category:Science]]&lt;br /&gt;
[[Category:Philosophy]]&lt;br /&gt;
[[Category:History]]&lt;br /&gt;
[[Category:Archaeology]]&lt;br /&gt;
[[Category:Astronomy]]&lt;br /&gt;
[[Category:SETI]]&lt;br /&gt;
[[Category:Astro-Archaeology]]&lt;br /&gt;
[[Category:Future Studies]]&lt;br /&gt;
[[Category:Technology]]&lt;/div&gt;</summary>
		<author><name>Wordpad</name></author>
	</entry>
</feed>