[ExI] [Extropolis] Crosspost

[Adrian Tymes]

On Wed, Apr 16, 2025 at 12:30 PM Keith Henson <hkeithhenson at gmail.com>
wrote:

> On Wed, Apr 16, 2025 at 8:02 AM Adrian Tymes via extropy-chat
> <extropy-chat at lists.extropy.org> wrote:
> > For example, is it known that it is impossible to do computation where
> all the substrate is gas and plasma, or is it theoretically possible to
> have computers inside a star operating at stellar temperatures?  In the
> latter case, how many uploads could our sun support?  What about a typical
> white dwarf, or a typical red supergiant?
>
> Robert Forward wrote a story about sententents living on the surface
> of a neutron star.
>

I've read such a story.  I forget the author, but it could be the same
story you're thinking of.


> But I doubt computers are possible at high temperatures.  They need
> stable states and the hotter you get, the harder it is to find stable
> states.
>

What about self-stable toroidal plasma (no need of external magnets, but
manipulating the plasma structures to perform operations), or using the
magnetic fields already present to control electron and.or plasma (and thus
information) flow?
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