There are physicists who have said things about time not existing, such as Julian Barbour. This is a sensationalised way of describing an idea about physics that may or may not be true. It doesn't mean that there are no clocks or that clocks don't measure anything. Rather, it ...
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The implications for the substantivalist--relationist controversy of Barbour and Bertotti's successful implementation of a Machian approach to dynamics are investigated. It is argued that in the context of Newtonian mechanics the Machian framework provides a genuinely relational interpretation of dynamics and that it is more explanatory than the conventional, substantival interpretation. In a companion paper (Pooley 2001), the implications of the Machian approach for the interpretation of relativistic physics are explored.