<div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family:Arial,Helvetica,sans-serif">On Sun, Mar 29, 2026 at 8:19 AM Ben Zaiboc via extropy-chat <<a href="mailto:extropy-chat@lists.extropy.org">extropy-chat@lists.extropy.org</a>> wrote:</span></div></div><div class="gmail_quote gmail_quote_container"><br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><font size="4" face="tahoma, sans-serif"><b>
><span class="gmail_default" style="font-family:arial,helvetica,sans-serif">></span> Forget 1/3 c, if just one ET had been able to send just one Von Neumann probe at 1/30 c then almost instantly (cosmically speaking) it would be very obvious to anybody that the Milky Way had been engineered, but instead we see a huge astronomical number of energy rich photons from hundreds of billions of stars<span class="gmail_default" style="font-family:arial,helvetica,sans-serif"> </span>radiating uselessly into empty space; and the Milky Way is not unique, even our largest telescopes can find no sign that any other galaxy has been engineered either. That's why I think the evidence is overwhelming that we are the only intelligent beings in the observable universe. </b></font></blockquote>
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<span class="gmail_default" style="font-family:arial,helvetica,sans-serif">> </span>Your argument makes sense, I'm, not saying it doesn't, but we can't ignore the timing.Maybe the von-neumann probes are on the way, but won't be apparent for another few thousand+ years, because they launched just recently.</i></font></blockquote><div><br></div><div><font size="4" face="tahoma, sans-serif"><b>Maybe, but the universe is 13.8 billion years old,<span class="gmail_default" style=""> the probability that a Von Neumann Probe is</span> about to arrive right now<span class="gmail_default" style=""> just as we are on the brink of the Singularity and will have the ability to make a </span>Von Neumann <span class="gmail_default" style="">P</span>robe<span class="gmail_default" style=""> of our own is too big a coincidence to be credible. </span></b></font></div><div><br></div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><font size="4" face="georgia, serif"><i>
<span class="gmail_default" style="font-family:arial,helvetica,sans-serif">> </span>We can argue about the possible reasons for no civilisations being capable of extensive space activity (which almost certainly means uploading into non-biological embodiments of some kind*) until very recently, but we can't rule it out.</i></font></blockquote><div><br></div><div><font size="4" face="tahoma, sans-serif"><b>When a theory has nothing going for<span class="gmail_default" style=""> it except for the fact that it doesn't violate the fundamental laws of physics </span>and there are other theories that have more going for <span class="gmail_default" style="">them</span> than that<span class="gmail_default" style="">,</span> I think as a practical matter<span class="gmail_default" style=""> </span>we can rule it out.<span class="gmail_default" style=""> </span></b></font></div><div><font size="4" face="tahoma, sans-serif"><b><span class="gmail_default" style=""><br></span></b></font></div><div><font size="4" face="tahoma, sans-serif"><b><span class="gmail_default" style=""> John K Clark</span></b></font></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
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