So they were trying to re-invent themselves and their universe. Science fiction was a big help.

They had both found life meaningless, partly because of what they had seen in war. Rosewater, for instance, had shot a fourteen-year-old fireman, mistaking him for a German soldier. So it goes. And Billy had seen the greatest massacre in European history, which was the fire-bombing of Dresden. So it goes. So they were trying to re-invent themselves