[ExI] A new answer to the Fermi paradox?

[John Clark]

On Fri, Jul 17, 2026 at 1:23 PM Jason Resch via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

*> On long enough time horizons, the universe cools to a temperature far
> lower than the hawking temperature of even galactic center black holes, and
> black holes convert their entire rest mass to energy.*


*A super massive Black Hole like the one at the center of our galaxy will
decay in about 10^100 years because of Hawking radiation, but there are
theoretical reasons for believing that, given enough time, a proton is not
stable and its half life is about 10^34 years, which is VASTLY less than
10^100. A proton will decay into a positron and a neutral pion, which
itself will almost immediately decay into 2 gamma ray photons and a
neutrino. *

*So by the time all Black Holes evaporate the universe will consist of
nothing but photons, neutrinos, gravitational waves, and electrons and
positrons which could pair up into positronium atoms but, assuming that
Dark Energy is constant, by then the density of those charged particles
would be so low that the radius of one of  those "atoms" would be larger
than the observable universe is today. And eventually even those charged
particles would annihilate each other and turn into photons and neutrinos
due to weak interactions, although that would take about 10^141 years.*

*> Computations become many orders of magnitude more efficient at these low
> temperatures operating at slow speeds*


*We don't know if Dark Energy is constant so we don't know if the universe
will ever reach these super low temperatures, and even if they do there is
no reason for not doing some computations right now. There is no reason to
let the low entropy light from a quadrillion suns radiate uselessly into
infinite space. There is no reason for not converting a low entropy photon
into a high entropy photon PLUS A CALCULATION, before it is released into
infinite space. *

*John K Clark *



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