[ExI] extropy-chat Digest, Vol 179, Issue 5

[Ben Zaiboc]

On 06/08/2018 15:41, ohn Clark <johnkclark at gmail.com> wrote:
> ET doesn't even need to travel to the stars, ET just needs to send one 
> Von Neumann probe to one star.Even if we make the ridiculously 
> conservative assumption that ET can't send space probes any faster 
> than we can then almost instantly from a cosmic perspective (less than 
> 50 million years) the entire Galaxy would be unrecognizable. It's not 
> as if this would take some huge commitment on the part of ET's 
> civilization, in fact even a individual could easily do it. If Von 
> Neumann probes are possible at all, and I can't think why they 
> wouldn't be, then they're going to be dirt cheap, you buying a bag of 
> peanuts would be a greater drag on your financial resources. Even if 
> many or even most ETs think that sending out a Von Neumann probe would 
> be a bad idea there will always be somebody who disagrees. And it only 
> takes one. And yet we see nothing. it's odd.
>


OK, I'm convinced. I agree, my idea of a third possibility is 
vanishingly unlikely, because of the 'it only takes one' argument.


Ben Zaiboc
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