Version Control — Dexter Palmer

Although Rebecca Wright has pieced her life back together after a major tragedy, she can't shake a sense that the world around her feels off-kilter. Meanwhile, her husband's dedication to his invention, “the causality violation device” (which he would greatly prefer you not call a time machine) has effectively stalled his career -- but he may be closer to success than either of them can possibly imagine. Emotionally powerful and wickedly intelligent, Version Control is a stunningly prescient novel about the effects of science and technology on our lives, our friendships, and our sense of self that will alter the way you see the future -- and the present.