Full Idea
Whether the essentialist theory can account for all absolute necessities depends in part on whether the theory can explain the necessities of existence (of certain objects, properties and entities).
Gist of Idea
The big challenge for essentialist views of modality is things having necessary existence
Source
Bob Hale (Necessary Beings [2013], Intro)
Book Reference
Hale,Bob: 'Necessary Beings' [OUP 2013], p.5
A Reaction
Hale has a Fregean commitment to all sorts of abstract objects, and then finds difficulty in explaining them from his essentialist viewpoint. His book didn't convince me. I'm more of a nominalist, me, so I sleep better at nights.