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.
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.