[ExI] [Extropolis] Re: Google Alert - Tabby's Star

[Keith Henson]

On Sun, Aug 11, 2024 at 1:59 PM John Clark <johnkclark at gmail.com> wrote:
>
> On Sun, Aug 11, 2024 at 3:48 AM Keith Henson <hkeithhenson at gmail.com> wrote:
>
>> > The thing that kicked me over from "don't know, but it must be natural" to "it is aliens" was the astronomers finding 24 blinking stars in a cluster.  The closest one is 511 lightyears from here.
>
> 511 light years is next door astronomically speaking, there must be millions of stars like that in the Milky Way alone, but we can only see the closest ones; our solar system probably looked like that for millions of years during the time after the sun formed but before the planets did.

Kepler found only one star that acted this way.  We could see this
kind of blink for a very long distance.

> What I don't understand is why discovering other stars that are similar to Tabby's Star increases your confidence that ET made them.

It looks like life spreading out, the way life does.

>  It increases my confidence that it's a natural phenomenon, and I'm not alone. The overwhelming consensus of professional astronomers, astrophysicists and even the SETI Institute say ET almost certainly has nothing to do with Tabby's Star.

Part of the reason I think we are looking at shadows of technological
objects is all the work I did on power satellites and thermal
radiators.  For example, a dust cloud in thermal equilibrium would be
about 210 K and not the measured 65 K.  This implies directional
thermal radiation which is not natural.

If it is aliens, there are good points and bad ones.  The good is that
they made it through their local singularity so maybe we can.  The bad
thing is that we don't need the competition.  I would be happy to be
wrong.

Keith

>   John K Clark
>
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