The world is indeed destroyed for joe. Nothing survived that he could call home or safe. The damage was done and world that once was is now just an endless wasteland for joe. For many years joe trolled this wasteland, looking for reason for answers. His ability of thought was also impaired rather suppressed, he couldn’t even think straight, leave alone reason. Thus entering a realm of extreme sci-fi, or even hell. All the time he would hear noises curses invocations satanic verses against him, against man itself.
He then stumbles upon a hidden cult of people, almost from his imagination, wahem like. They were called kale log, black people. They seemed to be the fore fathers or ancestors, even creators, of the world he once knew. They led him to a place in the wasteland, after many years of travel, called the jungle. A game preserve that was an arena where a team death match was being held by a man called the Master and his Gate keeper. Slowly, all his doubts and disbeliefs were answered by this jungle but in the process took him in, from where he could not escape, and started calling it home. In later years he even repairs his confidence and becomes a fearless warrior among the various and many bosses of the arena. Jane is one of the bosses, joe does not fear her this time, calls himself solitary.
After years of fighting confidence building in the jungle he realises the obvious truth, that the jungle, the bosses, the kale log, were all unreal. He gets wiser, builds tools, the dome, specifically for this purpose, of putting them to rest. See these people could not be fought by man, only delivered, or brought here. Salvation for joe then was to get them here, render then, keep them furnished. He built echelons with the help of these people, to allow him to give to them, thus bringing them here, putting them to rest. In all these ways, in following years, joe got peace thus.