I understood this novel as Lanza's attempt present his ideas concerning quantum mechanics in a more accessible format. After reading, I still don't quite fully grasp his notions of the primacy of the observer, and maybe in time this novel will be a work of prophetic fiction. But as a work of fiction I felt Observer was a bit too overly dramatic and predictable. Each relationship in the novel seemed to exist only to become a catalyst for characters to engage with medical research into quantum mechanics. Therefore it was hard to take the interpersonal aspects of this novel seriously, and at times it even came across to me as a cheap plot device to talk more about bio-centrism or quantum entanglement. The concepts expressed by Lanza in this novel are certainly worthy of a science fiction masterpiece, but this just wasn't it in my opinion. 2.5 stars rounded up to 3.