The Reality of time flow : local becoming in modern physics It is commonly held that there is no place for the now’ in physics and also that the passing of time is something subjective having to do with the way reality is experienced but not with the way reality is. Indeed the majority of modern theoretical physicists and philosophers of physics contend that the passing of time is incompatible with modern physical theory and excluded in a fundamental description of physical reality. This book provides a forceful rebuttal of such claims. In successive chapters the author explains the historical precedents of the modern opposition to time flow giving careful expositions of matters relevant to becoming in classical physics the special and general theories of relativity and quantum theory without presupposing prior expertise in these subjects. Analysing the arguments of thinkers ranging from Aristotle Russell and Bergson to the proponents of quantum gravity he contends that the passage of time understood as a local becoming of events out of those in their past at varying rates is not only compatible with the theories of modern physics but implicit in them Introduction The problem of time in classical philosophy Modern objections to time’s passage Classical physics and temporal becoming Special relativity and the lapse of time Relativity and the present Time in general relativity Becoming in quantum theory Conclusion