[ExI] [Bulk] Re: Virtual Reality is where the aliens are
John Clark
johnkclark at gmail.com
Sat Aug 29 17:39:58 UTC 2015
On Wed, Aug 26, 2015 BillK <pharos at gmail.com> wrote:
>
> > Just because we can't detect them, doesn't mean they are not around.
>
Life may be very common in the universe but intelligent life is another
matter. With apologies to the late great
Carl Sagan
, as far as advanced technology ET is concerned I think the absence of
evidence IS evidence of absence.
>
> at a basic level you can use waste heat to generate electricity.
No thermodynamic process can ever be 100% efficient and the temperature of
empty space (2.7 degrees Kelvin) sets a strict limit. If advanced
technology ET
existed in Andromeda
we shouldn't be able to detect that galaxy with gamma rays or X rays or
ultraviolet or visible light or even infrared because it's only emissions
would be massive amounts of microwaves. And that does not correspond with
our observations.
John K Clark
>
>
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