This brings to my mind Isaac Arthur's lecture "Civilizations at the End of Time: Iron Stars" [1]. He posits that a Kardashev Scale 3 civilization might use a ga

This brings to my mind Isaac Arthur's lecture "Civilizations at the End of Time: Iron Stars" [1]. He posits that a Kardashev Scale 3 civilization might use a galactic black hole to survive 10^100 entropic years of what he calls the "Black Hole Epoch". Hearing about this possible giant blob of plasma orbiting our galactic black hole makes me wonder if he and his team can come up with plausible explanations that the plasma is actually some construct of such a civilization, like perhaps a "construction site generator" as they're building their "bunker against entropic time" amongst the black hole. The really neat part of the lecture is towards the end, in his description of time winding down into thermodynamic equilibirum, a Boltzmann Brain fluctuating out of the equilibrium's randomness, and restarting the universe with another Big Bang. That's fascinatingly close to universe origin stories in Abrahamic religions, and echoes Hindu religious cosmological cyclicality. One aspect I didn't see touched upon is the possibility that our universe and we are simulations inside that Boltzmann Brain. And then there are the arguments that we do not want Boltzmann Brains [2]. Now if only the religious adherents in all our nations duking it out against other humans for not having the "right" religion could turn their cognitive surplus (poured into their religion) outwards to helping illuminate more upon these near-metaphysical physics challenges, we might actually get somewhere. After all, our best guess at the moment is we're halfway out of time in the universe. [1] https://www.youtube.com/watch?v=Pld8wTa16Jk https://www.youtube.com/watch?v=Pld8wTa16Jk [2] http://www.preposterousuniverse.com/blog/2013/08/22/the-higgs-boson-vs-boltzmann-brains/ http://www.preposterousuniverse.com/blog/2013/08/22/the-higg...