{"id":7875,"date":"2018-02-01T10:08:40","date_gmt":"2018-02-01T18:08:40","guid":{"rendered":"http:\/\/www.rifters.com\/crawl\/?p=7875"},"modified":"2023-03-25T09:17:19","modified_gmt":"2023-03-25T17:17:19","slug":"arc-weld","status":"publish","type":"post","link":"https:\/\/www.rifters.com\/crawl\/?p=7875","title":{"rendered":"<i>Arc<\/i> Weld"},"content":{"rendered":"<p style=\"text-align: right;\">&#8220;Language is a virus from outer space&#8221;<br \/>\n\u2014William S. Borroughs<\/p>\n<div id=\"attachment_7877\" style=\"width: 176px\" class=\"wp-caption alignright\"><a href=\"http:\/\/www.rifters.com\/crawl\/wp-content\/uploads\/2018\/02\/bsfoty3.jpg\" rel=\"attachment wp-att-7877\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7877\" class=\"wp-image-7877\" src=\"http:\/\/www.rifters.com\/crawl\/wp-content\/uploads\/2018\/02\/bsfoty3.jpg\" alt=\"bsfoty3\" width=\"166\" height=\"237\" srcset=\"https:\/\/www.rifters.com\/crawl\/wp-content\/uploads\/2018\/02\/bsfoty3.jpg 420w, https:\/\/www.rifters.com\/crawl\/wp-content\/uploads\/2018\/02\/bsfoty3-210x300.jpg 210w\" sizes=\"auto, (max-width: 166px) 100vw, 166px\" \/><\/a><p id=\"caption-attachment-7877\" class=\"wp-caption-text\">.<\/p><\/div>\n<p>Chest-thump to start off the year: Last year&#8217;s &#8220;ZeroS&#8221;, appearing in Jonathan Strahan&#8217;s <em>Infinity Wars<\/em>, made it into a <del>couple of<\/del> (late-breaking update: into <em>three<\/em>!) Year&#8217;s Best collections: Neil Clarke&#8217;s <a href=\"http:\/\/neil-clarke.com\/best-science-fiction-3\/\"><em>Best Science Fiction of the Year (Vol. 3<\/em>)<\/a>, and another couple I hesitate to name because they don&#8217;t seem to have been announced yet. So that&#8217;s cool.<\/p>\n<p style=\"text-align: center;\">*<\/p>\n<p>But this is way cooler:<\/p>\n<p>There&#8217;s this gene, Arc, active in our neurons. It&#8217;s essential for cognition and longterm memory in mammals; knockout mice who lack it can&#8217;t remember from one day to the next where they left the cheese. It looks and acts an awful lot like something called a gag\u2014 a &#8220;group-specific antigen&#8221;, something which codes for the core structural proteins of retroviruses. Like a gag, Arc codes for a protein that assembles into\u00a0 capsids (basically, shuttles containing messenger RNA). These accumulate in the dendrites, cross the synaptic junction in little vesicles: a payload from one neuron to another.<\/p>\n<p><a href=\"http:\/\/www.rifters.com\/real\/articles\/Pastuzyn-et-al_Neuronal-Arc.pdf\">Pastuzyn <em>et al<\/em><\/a>, of the University of Utah, have just shown that Arc is literally an infection: a tamed, repurposed virus that infected us a few hundred million years ago. Apparently it looks an awful lot like HIV. Pastuzyn <em>et al<\/em> speculate that Arc &#8220;may mediate intercellular signaling to control synaptic function&#8221;.<\/p>\n<p>Memory is a virus. Or at least, memory <em>depends<\/em> on one.<\/p>\n<div id=\"attachment_7876\" style=\"width: 332px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/www.rifters.com\/crawl\/wp-content\/uploads\/2018\/02\/Pastuzyn-thoughtcrime.jpg\" rel=\"attachment wp-att-7876\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7876\" class=\" wp-image-7876\" src=\"http:\/\/www.rifters.com\/crawl\/wp-content\/uploads\/2018\/02\/Pastuzyn-thoughtcrime.jpg\" alt=\"Thoughtcrime.\" width=\"322\" height=\"320\" srcset=\"https:\/\/www.rifters.com\/crawl\/wp-content\/uploads\/2018\/02\/Pastuzyn-thoughtcrime.jpg 440w, https:\/\/www.rifters.com\/crawl\/wp-content\/uploads\/2018\/02\/Pastuzyn-thoughtcrime-150x150.jpg 150w, https:\/\/www.rifters.com\/crawl\/wp-content\/uploads\/2018\/02\/Pastuzyn-thoughtcrime-300x298.jpg 300w\" sizes=\"auto, (max-width: 322px) 100vw, 322px\" \/><\/a><p id=\"caption-attachment-7876\" class=\"wp-caption-text\">Thoughtcrime.<\/p><\/div>\n<p>Of course, everyone&#8217;s all over this. U of Utah trumpeted the accomplishment with a <a href=\"https:\/\/unews.utah.edu\/surprise-a-virus-like-protein-is-important-for-cognition-and-memory\/\">press release<\/a> notable for, among other things, describing the most-junior contributor to this 13-author paper as the &#8220;senior&#8221; author. <a href=\"http:\/\/www.newsweek.com\/breakthrough-memory-formation-virus-hiv-protein-infects-brain-arc-778236\">Newsweek<\/a> picked up both the torch and the mistake, leading me to wonder if Kastalio Medrano is simply at the sloppy end of the scale or if it&#8217;s normal for &#8220;Science Writers&#8221; in popular magazines to not bother reading the paper they&#8217;re reporting on. (I mean, seriously, guys; the author list is <em>right there under the title<\/em>.) As far as I know I&#8217;m the first to quote Burroughs in this context (or to mention that Greg Bear played around a very similar premise in <a href=\"https:\/\/en.wikipedia.org\/wiki\/Darwin%27s_Radio\"><em>Darwin&#8217;s Radio<\/em><\/a>), but when your work gets noticed by <a href=\"https:\/\/www.theatlantic.com\/science\/archive\/2018\/01\/brain-cells-can-share-information-using-a-gene-that-came-from-viruses\/550403\/\">The Atlantic<\/a> you know you&#8217;ve arrived.<\/p>\n<p>Me, though, I can&#8217;t stop thinking about the fact that something which was once an infection is now such an integral part of our cognitive architecture. I can&#8217;t stop wondering what would happen if someone decided to <em>reweaponise<\/em> it.<\/p>\n<p>The parts are still there, after all.\u00a0 Arc builds its own capsid, loads it up with genetic material, hops from one cell to another. The genes being transported don&#8217;t even have to come from Arc:<\/p>\n<blockquote><p>&#8220;If viral RNA is not present, Gag encapsulates host RNA, and any single-stranded nucleic acid longer than 20-\u00ad30 nt can support capsid assembly &#8230; indicating a general propensity to bind abundant RNA.&#8221;<\/p><\/blockquote>\n<p>The delivery platform&#8217;s intact; indeed, the delivery platform is just as essential to its good role as it once was to its evil one. So what happens if you add a payload to that platform that, I dunno, fries intraneuronal machinery somehow?<\/p>\n<p>I&#8217;ll tell you. You get a disease that spreads through the very act of <em>thinking<\/em>. The more you think, the more memories you lay down, the more the disease ravages you. The only way to slow its spread is to think as little as possible; the only way to save your intelligence is not to use it. Your only chance is to become willfully stupid.<\/p>\n<p>Call it <em>Ignorance is Bliss<\/em>. Call it <em>Donald&#8217;s Syndrome<\/em>. Even call it a metaphor of some kind.<\/p>\n<p>Me, I&#8217;m calling it a promising premise. The only real question is whether I&#8217;ll squander it now on a short story, or save it up for a few years and stick it into <em>Omniscience.<\/em><\/p>\n<\/div>\n<div><span style=\"color: #000000;\">(Thanks to Bahumat, btw, for showing me the link.)<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;Language is a virus from outer space&#8221; \u2014William S. Borroughs Chest-thump to start off the year: Last year&#8217;s &#8220;ZeroS&#8221;, appearing in Jonathan Strahan&#8217;s Infinity Wars, made it into a couple of (late-breaking update: into three!) Year&#8217;s Best collections: Neil Clarke&#8217;s Best Science Fiction of the Year (Vol. 3), and another couple I hesitate to name [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21,10],"tags":[],"class_list":["post-7875","post","type-post","status-publish","format-standard","hentry","category-biology","category-neuro"],"_links":{"self":[{"href":"https:\/\/www.rifters.com\/crawl\/index.php?rest_route=\/wp\/v2\/posts\/7875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rifters.com\/crawl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rifters.com\/crawl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rifters.com\/crawl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rifters.com\/crawl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7875"}],"version-history":[{"count":12,"href":"https:\/\/www.rifters.com\/crawl\/index.php?rest_route=\/wp\/v2\/posts\/7875\/revisions"}],"predecessor-version":[{"id":10570,"href":"https:\/\/www.rifters.com\/crawl\/index.php?rest_route=\/wp\/v2\/posts\/7875\/revisions\/10570"}],"wp:attachment":[{"href":"https:\/\/www.rifters.com\/crawl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rifters.com\/crawl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rifters.com\/crawl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}