The main purpose of this book is to give physicians a simple and applicable way called prognostication to personalize the care given to patient based on their specific strengths and weaknesses, according to their age and medical background, instead of treating them by standardized protocols created by regulatory entities and the industry to prevent unnecessary pain, cost, and suffering. By doing so, doctors can recover the ownership of the care given to the patients.

Also, through the review of the different scientific aspects of the process of prognostication, the book may clarify many of the common beliefs our society has with respect to the time humans on earth can live, the possibility of immortality, the ability of the medical system to cure all diseases, and the fact that the optimum outcome of perfect aging is dead.