Great wiki page!
It even mentions Boltzmann Brains!
“ This infinite future could allow for the occurrence of massively improbable events, such as the formation of Boltzmann brains.”
Boltzmann Brains usually mean something is wrong in your cosmology
But taking this the other way around : it's also interesting that some cosmologies are known to be incorrect, because they would enable alternative forms of consciousness.
Or with our philosophy around anthropic reasoning. Or both.