Abstract

This review of Julian Barbour's The End of Time (1999) discusses his Machian theories of dynamics, and his proposal that a Machian perspective enables one to solve the problem of time in quantum geometrodynamics, viz. by saying that there is no time!1 Introduction2 Machian themes in classical physics2.1 The status quo2.2 Machianism2.2.1 The temporal metric as emergent2.2.2 Machian theories2.2.3 Assessing intrinsic dynamics3 The end of time?3.1 Time unreal? The classical case3.1.1 Spontaneity3.1.2 Barbour's vision: time capsules3.2 Evidence from quantum physics?3.2.1 Mott scattering as a model for time capsules3.2.2 Solving the problem of time?