ABSTRACT
This chapter takes up persistence. It starts with the observation that endurance in three-dimensional space does not have the intuitive advantage of being a more dynamic description compared to its four-dimensionalist alternative. The former depicts a unitary object within space. Whither time? In juxtaposing the two diagrams, it is the latter that seems intuitively more dynamic. Successive temporal parts are instances of change among different times and hence adequately capture the ontology of passage. The totality of what exists—the block universe—remains the same, but between earlier states of the local parts of the universe and its later states, there is change.
