[ExI] [Extropolis] Crosspost

[Keith Henson]

On Wed, Apr 16, 2025 at 8:02 AM Adrian Tymes via extropy-chat
<extropy-chat at lists.extropy.org> wrote:
>
> On Wed, Apr 16, 2025 at 9:24 AM Keith Henson via extropy-chat <extropy-chat at lists.extropy.org> wrote:
>>
>> If you can think of a third alternative, that would be cool.
>
> Pun intended?
>
> 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.

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.

Keith

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