Full Idea
There are numerous cases in which there is pressure to admit coincident entities. The best way of coming to grips with this, I think, invokes the stage view. ...In the worm theory, coincident objects are no more mysterious than overlapping roads.
Clarification
A 'stage' is a 'temporal part'. 'Worm' theory says objects are spread out over time
Gist of Idea
The stage view of objects is best for dealing with coincident entities
Source
Theodore Sider (Four Dimensionalism [2001], 5.1)
Book Reference
Sider,Theodore: 'Four Dimensionalism' [OUP 2003], p.152
A Reaction
At this point I get nervous if in order to 'get to grips' with a phenomenon which is hard to articulate but obvious to common sense, we have to invoke a rather startling metaphysics that completely upends the common sense we started with.