Quote Originally Posted by Quertus View Post
Effects? Timeframe? Reasons sci-fi would be more vulnerable?
Anything resembling science requires exacting measurements, which become increasingly difficult in a rapidly progressing yet hard to quantify timeframe, because the very existence of the Book makes quantifying things increasingly impossible. To be exact, starting immediately from the Book being completed, all written and electronic memory storages, mundane or magical, in an universe fail. In 24 hours, mathematics fail. In 48 hours, which no-one can reliably count at this point, last vestiges of living memory fail. Immeasurable time after that, immeasurable both because measuring it is impossible and because no-one can be around to measure it, everything that is not the Book collapses into Nothing.

For example, Planet Mercenary (Schlock Mercenary RPG) universe is relatively hard sci-fi. All of those amazing things they can do depend on natural constants being, well, constant. Immediately upon completion of the book, all electronic memories of all the AIs, no matter how advanced, are wiped out. In 24 hours, all the math they require to function ceases to apply. There are and can be no AIs, no Allstars, no Teraport and no Long Guns after that period until the Book is destroyed. In 48 hours, even the sharpest biological minds of the setting and their nanobiological failsafe back-ups are completely gone.