A first-rate central concept inside a second-rate plot wrapper. After reading two Blake Crouch novels , Crouch's gift for concept is obvious, but writing believable and well-resolved narrative arcs is an area for improvement. We'll start with this novel's concept layer, the multiverse: the idea that there are an infinite number of possible universes, and with every choice we make, every fork in our road, a new separate universe will exist for any and all of these possible choices. Dark Matter is a story about a physicist, Jason Dessen, who figures out a way to place a human being into "superposition," enabling him to move from quantum universe to quantum universe, and even to choose which quantum universe to inhabit. [A quick affiliate link to Amazon for those readers who would like to support my work here: if you purchase your Amazon products via any affiliate link from this site, or from my sister site Casual Kitchen , I will receive a small affiliate commis...