Our planet might not be, but the cosmos at large is mostly dead. Most of the civilizations that have or ever will exist in any of these galaxies have come to pass. Maybe we’re in some kind of magical Goldilocks time zone where we can explore our galaxy without putting up with anyone else, we’ll just get to rummage through the bones of alien societies for free shit. We might have to contend with lingering extraterrestrial military robots, but how could we not roll those dice?