ABSTRACT
In part, time's elusiveness arises from the fact that it is not an item given in experience. But undesirable as causal time may be, it is not incoherent Reductionism thus fails as an analysis of our concept of time. On the schema given, the occurrence of a change requires the persistence through time of some object that changes in respect of one or more of its properties. On the inconceivability argument empty time is held to be logically impossible on the grounds that it is inconceivable. For instance, in the Bohr-Rutherford model of the atom, the parameter giving the orbit level of an electron changes in a discrete quantized manner. Lucas has argued for adopting the principle of the acausality of time as a regulative principle on the grounds that unless it is adopted we could discover no causal laws. Bennett has argued that Leibniz's grounds for denying the possibility of spatial vacua were moral and theological in character.
