'A magnificent challenge to conventional ideas' Financial Times 'I thoroughly enjoyed this book. It manages to be both challenging and 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