A structural no-go result. Building on four prior results in the initiating-increment series, this paper applies them to a single case: the cat treated as a closed physical system. When a waiting cat begins to pounce, that beginning is the onset of a new causal chain. The prior results establish that no closed physical system internally fixes its own onset; that the onset requires a non-internal contribution; that the contribution cannot be inert but must be efficacious toward the onset; and that such a contribution, not contained in the closed physical description, is an actual added increment of energy (ΔEᵢnit). Applied to the cat, the result is this: the increment that begins the pounce is not contained in the cat's complete physical description. When the pounce occurs, the increment is made to appear in the cat — yet it originates from no resource the cat contains. The onset is the cat's; the source of the increment that begins it lies outside the cat.
Ellison Clarke (Tue,) studied this question.