Full Idea
The obvious problem with the simple relational view of space and time is that it fails to account for the full range of spatio-temporal possibility. There seem to be times and places where objects and events could be, but are not.
Gist of Idea
The relational view of space-time doesn't cover times and places where things could be
Source
Alexander Bird (Nature's Metaphysics [2007], 7.3.2)
Book Reference
Bird,Alexander: 'Nature's Metaphysics' [OUP 2007], p.163
A Reaction
This view seems strongly supported by intuition. I certainly don't accept the views of physicists and cosmologists on the subject, because they seem to approach the whole thing too instrumentally.