By Blake Crouch
Time machines have become an obsolete technology in a lot of recent SF, having been replaced by devices allowing for the navigation of the “many worlds” posited by quantum physics. In Dark Matter Jason Dessen is a college physics professor who, in another “worldline,” has invented just such a doohickey, allowing him to visit alternative realities . . . and alternative Jason Dessens.
Blake Crouch, author or the Wayward Pines trilogy that was made into a Fox series, turns the many-worlds concept into a breathless ride through the multiverse in this fast-paced and action-packed novel. Along the way some interesting questions are raised not just about different worlds but the different kinds of people we become in those worlds, and the responsibility we may owe to them.