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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> extropy-chat <extropy-chat-bounces@lists.extropy.org> <b>On Behalf Of </b>William Flynn Wallace via extropy-chat<br><b>Sent:</b> Tuesday, June 30, 2020 12:19 AM<br><b>To:</b> ExI chat list <extropy-chat@lists.extropy.org><br><b>Cc:</b> William Flynn Wallace <foozler83@gmail.com><br><b>Subject:</b> Re: [ExI] marksmanship<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Comic Sans MS";color:black'>I am pretty sure I saw something about an advance in microscopy, but I guess I didn't see what I thought I saw.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Comic Sans MS";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Comic Sans MS";color:black'>You are pulling my leg a bit about replicating assemblers, eh? If they did what you say they do, why would anyone try to build one? bill w<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>BillW, the notion of nanotech assemblers was quite the rage in the 80s and 90s. Reference K. Eric Drexler’s Engines of Creation.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>One of the common notions was an assembler that could assemble a copy of itself without actual instructions to do so, or perhaps just make one copy of itself then stop there. Then your collection of assemblers would increase linearly, ja? But that is too slow, so what if we have them make two copies? Then your collection of programmable assemblers increases exponentially, but no worries, you stop the process when you have enough.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>But what if you sneeze and some get loose? Then you can’t find them to tell them to stop making two copies of themselves, and pretty soon, the earth is covered in gray goo.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>This to me is an explanation for Fermi’s Paradox at least as plausible as malicious AI or nuclear holocaust.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>spike<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></div></div></body></html>