Stepping forwards to join the two properly, furrow at his brow, Cain tried to shirk the uneasiness that kept growing every time someone repeated that. It was an impossibility, there weren't multiple worlds and, even if there were, the odds of them all ending at the same time were infinitesimal.

"That isn't real, you must know that." As a simulation, it was an odd one, as it clearly hadn't been crafted for them to believe it.