"A Remarkable Difference" is a science fiction novel by the famous writer Alan Edward Nourse. In this book, the author lays the foundations of an alternative reality, where humanity is faced with a difficult choice: to save thermal energy for the preservation of life on Earth, or to direct it to the mentioned sending into a strengthened reality. The novel offers readers an in-depth study of morality, science and the principle of survival in adverse situations. With a complex storyline and interesting images, this book will leave a mark in the heart of every science fiction fan.