Full Idea
Special Relativity denies absolute simultaneity, and therefore requires a past and a future, as well as a present. The Presentist, however, only requires the present.
Gist of Idea
Relativity denies simultaneity, so it needs past, present and future (unlike Presentism)
Source
Craig Bourne (A Future for Presentism [2006], 6.VII)
Book Reference
Bourne,Craig: 'A Future for Presentism' [OUP 2006], p.183
A Reaction
It is nice to accuse Relativity of ontological extravagence. When it 'requires' past and future, that may not be a massive commitment, since the whole theory is fairly operationalist, according to Putnam.
Related Ideas
Idea 13993 Special Relativity denies the absolute present which Presentism needs [Markosian]
Idea 7621 Special relativity, unlike general relativity, was operationalist in spirit [Putnam on Einstein]