[ExI] Islands of trans-humanity

[Keith Henson]

On Wed, Dec 13, 2023 at 10:08 AM Kelly Anderson via extropy-chat
<extropy-chat at lists.extropy.org> wrote:
>
> Detailed spectral analysis of the star's light could reveal
> differences between a Dyson cloud and dust. A Dyson cloud

I tend to think of them as patches with enough structure to keep the
whole thing connected.

>would likely
> show some signs of energy conversion, such as excess waste heat, which
> might manifest as an infrared signature.

>From my work on power satellites, I sort of doubt it.  It is possible
and advantageous to radiate waste heat at right angles to the local
ecliptic

?Dust clouds would not produce
> such heat signatures. Has such an analysis been done?? I would guess
> so, but I don't know the answer.

I think the object has been measured and the temperature turned out to be 65 K.
I suspect this is optimal for computation.

Keith
> -Kelly
>
> On Tue, Dec 5, 2023 at 3:24 PM Keith Henson via extropy-chat
> <extropy-chat at lists.extropy.org> wrote:
> >
> > On Mon, Dec 4, 2023 at 1:21 AM Giulio Prisco via extropy-chat
> > <extropy-chat at lists.extropy.org> wrote:
> > >
> > > On Sun, Dec 3, 2023 at 5:25 PM Keith Henson via extropy-chat <extropy-chat at lists.extropy.org> wrote:
> > >>
> > >> " next few centuries of transhumanism,"
> > >>
> > >> I doubt this.  Whatever the fate of humanity is, it will go to
> > >> completion within decades, not centuries.
> > >
> > > The fate of humanity will not go to completion for billions of years.
> >
> > Perhaps I was not clear.
> >
> > I suspect humans will abandon flesh (upload) within decades.  Maybe
> > not all of them, but the vast majority.
> >
> > I think what we see at Tabby's Star (and 24 others in that cluster) is
> > orbiting "dyson patches" that provide the physical level substrate for
> > vast numbers (trillions?) of uploaded aliens and a simulated
> > environment. The biggest one of them (so far) is over 400 times the
> > area of the Earth, and even out at 7 AU it is collecting 1.4 million
> > times the energy humans use today.  Why so far out?  If these patches
> > are for computation, the low temperature (65 K) will reduce the error
> > rate (and the power needed for computation).
> >
> > What limits the size?  Most likely the speed of light,  Bigger, and
> > communication would take an unreasonable (subjective) time to get from
> > edge to edge.
> >
> > Now I could be dead wrong on this analysis, and I hope I am, we don't
> > need the competition.
> >
> > But if I am not and we follow the aliens at Tabby's Star, things will
> > get very strange as we sail up the singularity curve.
> >
> > Keith
> >
> > PS.  Needless to say, full-scale nanotechnology is required to upload.
> >
> > >>
> > >>
> > >> Keith
> > >>
> > >> On Sun, Dec 3, 2023 at 1:43 AM Kelly Anderson via extropy-chat
> > >> <extropy-chat at lists.extropy.org> wrote:
> > >> >
> > >> > I doubt this is a novel train of thought... but...
> > >> >
> > >> > One of the more interesting ways that transhumanism could be "bad" is
> > >> > the idea that over the next few centuries of transhumanism, different
> > >> > "species" of human could rapidly evolve (though not through natural
> > >> > selection, unnaturally) into islands of trans-humans that can no
> > >> > longer interbreed. By creating this rapidly dividing delta in the
> > >> > river of hominid divergence, it could create interesting dynamics of
> > >> > "us" and "them" which could lead to a destructive fragmentation of
> > >> > society.
> > >> >
> > >> > I welcome science fiction along these lines...
> > >> >
> > >> > -Kelly
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