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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><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>Dan<br><b>Subject:</b> Re: [ExI] Discontent with the path physics is taking<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'>Thanks for responding to this. To play Devil's Advocate, what about, say, QCD. That theory had little practical application, yet it seems like a fairly successful and fruitful area of research. And were we to go back further, one might wonder about the work of Kepler. Little immediate application, though the long term pay out, especially once it was integrated with other work, seems quite large. Might not the same be possible for string theory?<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'>Regards,<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'>Dan</span><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></b></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'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Ja, good point. Note that QCD (my limited grasp of it) is really more of a description than it is an explanation. Every attempt at an explanation-based approach to quantum physics sounds baffling and crazy. Second, the many applications of QCD do not depend on understanding QCD. Engineers don’t worry that the physicists are apparently insane, don’t necessarily read their books. The Josephson junction works fine, even when it looks to me like it should be impossible. I use them anyway. A particle doesn’t care if I don’t understand how it can tunnel through an energy barrier.<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><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I am one who enjoys blowing my mind with physical theory, cosmology, the awesomeness of nature. But even I see string theory as an exclusive playground of the top level physicists. They left me behind soon after general relativity was discovered in the early 1900s. I have tried to follow, but the equations just don’t translate well to words, any more than hip hop translates to the saxophone.<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><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>spike<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></div></div></div></body></html>