 Presentism faces a problem about how to account for the existence of singular propositions about past entities. It seems that there are such propositions; recall that “Socrates was wise” expresses a true singular proposition, &lt;Socrates was wise&gt;, which must exist in order to be true. The problem arises given the following treatment of singular propositions: a proposition that’s directly about an individual x is constituted by x itself, and propositions depend for their existence upon the existence of their constituents. So, for example, &lt;Socrates was wise&gt; is constituted by Socrates himself and this proposition ontologically depends upon Socrates.