- Necessarily, every exact duplicate of the Empire State Building has a cause.
- Necessarily, if an exact duplicate of the Empire State Building never changes, then neither it nor any of its parts cause its existence.
- Possibly, the only contingent beings ever are an unchanging duplicate of the Empire State Building and parts thereof.
- There is a necessary being.
Premise (1) is a version of the Causal Principle specialized to the sorts of entities that we are most confident of there being causes of. One might wonder about why one needs the "never changes" in (2). But there is reason for it. Some objects can perhaps be caused by their parts. Imagine a bunch of trees that grow together to form a tower. We could likewise imagine a bunch of moving stony and metallic beings that come together to form an exact duplicate of the Empire State Building. This is ruled out by the "never changes".