Full Idea
Essentialist believe the laws of nature are metaphysically necessary, because anything that belongs to a natural kind is logically required (or is necessarily disposed) to behave as its essential properties dictate.
Gist of Idea
For essentialists, laws of nature are metaphysically necessary, being based on essences of natural kinds
Source
Brian Ellis (The Philosophy of Nature: new essentialism [2002], Ch.4)
Book Reference
Ellis,Brian: 'The Philosophy of Nature: new essentialism' [Acumen 2002], p.59
A Reaction
What a thrillingly large claim. Best approached with caution.. If we say 'essences make laws, and essences are necessary', we might wonder whether a natural kind essence could be SLIGHTLY different (a counterpart) in another world.