"I can recommend this controversial and brilliantly written book for any philosopher who is interested in the problems of time and causality, not as sterile a priori categories, but as subjects for empirical research. I can equally recommend it for physicists, not as a technical monograph in temporal physics, but as a remarkably clear exposition of the problems and a sketch for their solution. Lastly, I can recommend it for those who are neither philosophers nor physicists, but who are interested in the subject, and for whom the challenge of a dense and provocative volume is not daunting."