At a cursory glance, this seems slightly differently focused than my question – I’m specifically not asking “how can we survive the end of the universe?”, but “how long can we survive into the end of the universe?”.
(but still seems good to have a reference to here)
Well yes, in the sense that the Dark Age is infinitely long and the diagram only shows a finite time span.
The first possibility of Boltzmann brains would be—even in the logarithmic scale—so far off the right side that extending the diagram to fit would mean leaving our solar system to read it. But yes, your statement is correct since in this model there would be still an infinitely long time span beyond that.
I tried to answer the question here: How to Survive the End of the Universe
At a cursory glance, this seems slightly differently focused than my question – I’m specifically not asking “how can we survive the end of the universe?”, but “how long can we survive into the end of the universe?”.
(but still seems good to have a reference to here)
Also, Dark Age will be dominated by Boltzmann brains and it could be harvested by the use of some form of Dust theory.
Well yes, in the sense that the Dark Age is infinitely long and the diagram only shows a finite time span.
The first possibility of Boltzmann brains would be—even in the logarithmic scale—so far off the right side that extending the diagram to fit would mean leaving our solar system to read it. But yes, your statement is correct since in this model there would be still an infinitely long time span beyond that.