The Many Worlds of Hugh Everett III deserves to be widely read. It is comprehensive as a biography; satisfactory as an introduction to Everettian Quantum Mechanics; illuminating as a study in the psychology of physicists and of operations researchers; and engaging as a human story. I recommend it to anyone with an interest in quantum theory.
Alastair Wilson, Metascience
The book provides new insights into the development and the later Renaissance of the "many worlds" theory. I am recommending the anthology to anyone interested in the theory's physical or philosophical implications, and in the pro and con arguments [...]
Alexander Pawlak, Physik Journal
Byrne's narrative compels serious attention, contains much important new material, is greatly enlivened and enhanced by his eagle eye for the telling quotation, and is always interesting and often convincing. It should intrigue any student of twentieth century physics, and is also a valuable resource for anyone concerned with the broader eduction of the scientists and the impact narrowly scientific ways of thinking can have on scientists themselves and on the wider world.
Adrian Kent, American Journal of Physics
Vivid and thoroughly researched. Byrne does an admirable job of weaving together quantum mechanics, nuclear war games and the disintegration of a dysfunctional family in this tale of a talented scientist, but morally compromised man.
Manjit Kumar
The book offers a valuable source of primary information about Everett's life and work, with much material not available elsewhere, [and] fleshes out an important part of the quantum physics story.
Science News
Peter Byrne's meticulously researched biography provides a detailed and intimate look at one of the most seminal figures in 20th century physics and mathematics ... it is a remarkable and long-overdue biography.
Ian T. Durham, The Quantum Times
Offers a valuable source of primary information about Everetts life and work, with much material not available elsewhere ... this book fleshes out an important part of the quantum physics story.
Tom Siegfried, ScienceNews
The many worlds theory is still garish after all these years. Nevertheless, it is fascinating to read the story of its creator, himself too obsessed with models to intersect effectively with the real world.
Robert P. Crease, Nature
Byrne does an excellent job of explaining the theory, why it is necessary and the difficulties it solves (and doesn't). [...] Byrne does not patronise his readers with superficial pen portraits of his characters. We get to know the characters by what they say and what they do. And they say and do some truly remarkable things. [...] This is a strangely beautiful story, expertly told with the dignity, candour and attention to detail it deserves.
New Scientist
The effort Byrne has put in to understanding the man is impressive ...
Robert Matthews, BBC Focus Magazine
In this biography, Peter Byrne bravely explores both the life and the science of Hugh Everett, the brilliant creator of the "many worlds" concept who burned himself out at an early age. As Byrne makes clear, Everett's startling achievements in physics stood against his startling deficiencies as a husband and father.
Kenneth W. Ford, retired director, American Institute of Physics
This book has the potential to become the definitive biography of one of the finest minds of the twentieth century.
David Deutsch FRS, Oxford University
In this extraordinarily personal biography, Peter Byrne masterfully conveys the life, struggles, achievements, and failures of this fascinating man, whose insights in physics created a new understanding of quantum mechanics, whose secret work helped usher us through the Cold War, and whose inner battles led to his own destruction.
A. Garrett Lisi, physicist, author of 'An Exceptionally Simple Theory of Everything'
We are grateful to Peter Byrne for this remarkable and remarkably sad story of the life and science of Hugh Everett III. Gifted, but late-to-be-recognized, Everett, while still in his twenties, proposed a new, now somewhat fashionable, interpretation of the quantum theory--the often rediscovered and often misinterpreted, so called, many worlds theory. Byrne gives a lucid and accessible account of many aspects of what has been an extraordinarily puzzling question that has bedeviled the quantum theory since its origin. And he does this with a warts and all reconstruction of Everett's life. An impressive achievement.
Leon N. Cooper, Nobel Prize in Physics, 1972
Peter Byrne has the skills of a seasoned journalist: an eye for a story, a knack for turning up improbable interviews and previously undiscovered manuscripts, and a thoroughly engaging style. His target here is inherently interesting, and the resulting story is a remarkable achievement.
Jeff Barrett, Professor of Logic and Philosophy of Science; University of California, Irvine
This is an exciting book about a man who was ahead of his time by decades, although he did no more than logically apply a well-established theory against all prejudice. Peter Byrne has done an excellent job in unearthing documents, most of them unknown, about the history of Everett's ideas, their reception by the leading physicists from 1957 until today, and the consequences this had for Everett's life.
H. Dieter Zeh, University of Heidelberg