'A magnificent challenge to conventional ideas'. - Financial Times. 'I thoroughly enjoyed this book. It manages to be both challenging and entertaining: it is highly recommended'. - The Independent. '(Greene) send(s) the reader's imagination hurtling through the universe on an astonishing ride. As a popularizer of exquisitely abstract science, he is both a skilled and kindly explicator'. - The New York Times. 'Greene is as elegant as ever, cutting through the fog of complexity with insight and clarity; space and time become putty in his hands'. - Los Angeles Times Book Review.