Full Idea
Gallois' Occasional Identity Thesis is that objects can be identical at one time without being identical at all times.
Gist of Idea
Occasional Identity: two objects can be identical at one time, and different at others
Source
report of André Gallois (Occasions of Identity [1998]) by Katherine Hawley - How Things Persist 5.4
Book Reference
Hawley,Katherine: 'How Things Persist' [OUP 2004], p.154
A Reaction
The analogy is presumably with two crossing roads being identical at one place but not at others. It is a major misunderstanding to infer from Special Relativity that time is just like space.
Related Idea
Idea 16233 Gallois hoped to clarify identity through time, but seems to make talk of it impossible [Hawley on Gallois]