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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> extropy-chat-bounces@lists.extropy.org [mailto:extropy-chat-bounces@lists.extropy.org] <b>On Behalf Of </b>Dennis May<br><b>Sent:</b> Wednesday, September 28, 2011 5:35 PM<br><b>To:</b> ExI chat list<br><b>Subject:</b> Re: [ExI] Feasibility of solid Dyson Sphere WAS mbrains again: request<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div id=yiv1604706590><div><div><p class=MsoNormal style='background:white'><span style='font-size:14.0pt;color:#1F497D'>>…</span><span style='font-size:14.0pt;color:black'> I am a critic of the concept<o:p></o:p></span></p></div><div id="yiv1604706590yui_3_2_0_31_131717436847477"><p class=MsoNormal style='background:white'><span style='font-size:14.0pt;color:black'>of <span class=mark>mbrains</span> and Dyson Spheres and have been since<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:14.0pt;color:black'>I first heard of either</span><span style='font-size:14.0pt;color:#1F497D'>…</span><span style='font-size:14.0pt;color:black'> No matter how large and how fortified - if</span><span style='font-size:14.0pt;color:#1F497D'><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:14.0pt;color:black'>it can't run and it can't hide - it is a target</span><span style='font-size:14.0pt;color:#1F497D'>… </span><span style='font-size:14.0pt;color:black'>Dennis May</span><span style='font-size:14.0pt;color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dennis, on the contrary sir. An MBrain would have a most effective defense against any incoming weapon, either a natural object or a projectile made by alien hands (tentacles?) with apparent intent to harm.<o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The MBrain would have a number of orbiting telescopes orbiting outboard of the last layer of nodes, constantly scanning the cosmos for any incoming object. If any of the telescopes spot anything, another one or two scopes lock on and determine its distance and path via parallax. If the object is on a collision course with the MBrain, then all 10^26 nodes pivot to focus sunlight on the incoming weapon or icy body, with similar results in either case: vaporizing it while still weeks or months away. <o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The MBrain is a target, in a sense, but certainly not a helpless target. This one has a built-in speed of light self-defense system.<o:p></o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>spike<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:14.0pt;color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:14.0pt;color:black'> <o:p></o:p></span></p></div></div></div></div></div></body></html>