Full Idea
Presentism has a problem with singular propositions about non-present objects. ...When Socrates popped out of existence, according to Presentism, all those singular propositions about him also popped out of existence.
Gist of Idea
Presentism has the problem that if Socrates ceases to exist, so do propositions about him
Source
Ned Markosian (A Defense of Presentism [2004], 2.1)
Book Reference
'Persistence: contemporary readings', ed/tr. Haslanger,S/|Kurtz,RM [MIT 2006], p.308
A Reaction
He seems to treat propositions in a Russellian way, as things which exist independently of thinkers, which I struggle to grasp. Markosian offers various strategies for this [§3.5].
Related Ideas
Idea 13996 Maybe Presentists can refer to the haecceity of a thing, after the thing itself disappears [Markosian]
Idea 8361 What is true used to be possible, but it may no longer be so [Wright,GHv]