 Counterexamples to the sufficiency of (CA) have been most prominent in the literature. Informally, they are suggested by the question: ‘but could S try to A?’ There are a variety of ways of translating this rhetorical question into a counterexample. We may distinguish two: global counterexamples, according to which (CA) might always get the facts about ability wrong, and local counterexamples, according to which (CA) might sometimes get the facts about ability wrong.