Robert Sawyer is a stalwart of the science fiction world. A writer interested as much in ideas as he is in the usual sci-fi mechanics. He is probably best known for the book that launched a short-lived post-Lost TV series Flashforward. In Flashforward, everyone in the world experiences a loss of consciousness that gives them a glimpse of the future. The book dealt with questions of predestination and free will. More recently, Sawyer gave us the WWW trilogy in which the World Wide Web develops consciousness. So it is no surprise that Quantum Night relies so heavily on theories of the conscious mind and how it works. The main character of Quantum Night, Jim Marchuk, is an expert in determining whether someone is a psychopath. But when put on the stand to defend his technique, Marchuk is torn down, not because his technique is flawed but because he fails to remember a crucial period of his life. It turns out that Marchuk has no memory of a six month period of his life from twenty years earlier. Marchuk’s exploration of that time leads him to a former girlfriend who he did not previously remember having and a secret experiment on…