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On 05/08/2018 22:07, John Clark wrote:<br>
<blockquote
cite="mid:mailman.10.1533503236.6153.extropy-chat@lists.extropy.org"
type="cite">
<div class="gmail_default"
style="font-family:arial,helvetica,sans-serif"><span
style="font-family:arial,sans-serif">On Fri, Aug 3, 2018 at
5:02 PM, Ben Zaiboc </span><span dir="ltr"
style="font-family:arial,sans-serif"><<a
moz-do-not-send="true" href="mailto:ben@zaiboc.net"
target="_blank">ben@zaiboc.net</a>></span><span
style="font-family:arial,sans-serif"> wrote:</span><br>
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<div class="gmail_quote"><br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
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class="gmail-"><font size="4">
<div class="gmail_default"
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My 2 guesses to explain The Great Filter are we are
the first (somebody has to be) or the robots fall
victim to something like electronic drug abuse.</font></span></blockquote>
</blockquote>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"> </blockquote>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
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<div class="gmail_default"
style="font-family:arial,helvetica,sans-serif;display:inline">></div>
A third possibility is that the aliens are all over the
place, we just can't detect them.</i></blockquote>
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<div><font size="4">
<div class="gmail_default"
style="font-family:arial,helvetica,sans-serif;display:inline">I
think that's very unlikely.</div>
</font></div>
<div> </div>
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<i>A combination of nanotechnology and uploading could
mean civilisations simply shrink until they no longer
have any detectable footprint</i></div>
</blockquote>
<div><br>
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<font size="4">With Drexler style nanotechnology it would be
easy to make galaxy sized engineered structures and its hard
to believe absolutely nobody ever decided to do it. Even a
uploaded mind is connected with physics, the richer his
virtual world is the more computations are needed to be
made, and the only way t o perform a computation is by way
of matter and energy with can only come from our non-virtual
world. We should be able to see the upload civilization do
that but we don't. It's odd.</font></div>
<div class="gmail_quote"><font size="4"><br>
</font></div>
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<br>
One of the practical reasons for going small, quick, and low-energy
would be the speed of light making galaxy-sized engineering projects
of any kind, extremely unattractive and possibly prohibiting them
altogether. I'm thinking of upload civilisations that occupy cubic
millilitres, run millions of times faster than we do, and consume
tiny amounts of energy.<br>
<br>
But in any event, whether that's realistic or not, it makes sense
for us to assume we are alone. Either we really are, or we
effectively are.<br>
<pre class="moz-signature" cols="72">--
Ben Zaiboc</pre>
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