Higher‐order evidence and the duty to double‐check

Abstract

The paper proposes an account of the rational response to higher‐order evidence whose key claim is that whenever we acquire such evidence we ought to engage in the inquiring activity of double‐checking. Combined with a principle that establishes a connection between rational inquiry and rational belief retention, the account offers a novel explanation of the alleged impermissibility of retaining one's belief in the face of higher‐order evidence. It is argued that this explanation is superior to the main competitor view which appeals to the notion of defeat.