<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Aug 26, 2015 at 1:46 PM, BillK <span dir="ltr"><<a href="mailto:pharos@gmail.com" target="_blank">pharos@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 26 August 2015 at 10:37, Rafal Smigrodzki wrote:<br>
> ### A lot of small people will produce a large impact. Ergo, if there is no<br>
> large impact, there are few if any small people.<br>
><br>
<br>
</span>In effect that is just claiming that you believe nanoscale aliens don't exist.<br>
One small computronium device could contain the equivalent of billions<br>
of intelligences.<br>
('Equivalent' because we don't know how these devices will be structured).<br>
<br>
You have to also claim that if these small computronium devices do<br>
exist then there must be billions clustered together so that we can<br>
detect them.<br>
<br>
Just because we can't detect them, doesn't mean they are not around.<br>
<div class="HOEnZb"><div class="h5"><br></div></div></blockquote><div><br></div><div>### On the scale of the universe, the word "few" has different connotations. There could be countless trillions of nanoscale aliens out there, using up a millionth of the available energy flow and they might be completely undetectable by our technology. But, to believe that this is actually plausible and sustained over time, you would have to explain what prevents the aliens from growing to 2x trillion and to claim 2 millionths of the energy... then 4 x... you know the progression. </div><div><br></div><div>I know, this has been belabored ad nauseam - Berserkers, space environmentalism, etc. are being trotted out as explanations for "invisible aliens all over the place". I do not find any of the explanations I heard to be plausible The least implausible explanation for the invisibility of aliens is still their extreme scarcity. And by scarcity I mean extreme low frequency of spacefaring civilization starts - on the order of less than one per galaxy cluster in the last couple of billion years and none before.</div><div><br></div><div>Rafał</div></div>
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