Full Idea
Another strategy for the problem of change says that instantiation - the having of properties - is time-indexed, or relative to times, although properties themselves are not. This 'adverbialism' says that object has-at-t some property.
Gist of Idea
'Adverbialism' explains change by saying an object has-at-some-time a given property
Source
Katherine Hawley (How Things Persist [2001], 1.5)
Book Reference
Hawley,Katherine: 'How Things Persist' [OUP 2004], p.21
A Reaction
[She cites Johnson, Lowe and Haslanger for this] Promising. The question is whether the time index is attached to the object, to the property, or to the instantiation. The middle one is wrong. There aren't two properties - green-at-t1 and green-at-t2.