Parallel Worlds and the Science of Mirrored Matter

Cast a cursor about on any book sales webpage these days and you’ll invariably land somewhere near to a parallel universe novel. They’ll promise to take you on journeys far and wide, stretching the limits of your imagination. One may explore a world where Nazi’s won WWII (The Man in the High Castle-Philip K Dick) others make use of invented contraptions to slip between worlds, such as Blake Crouch’s Dark Matter. To the fiction weary, they yield reviews of ‘ridiculous premise but entertaining’, to ‘not another scientific plot hole’.