 Lying in wait at the other horn of the Sellarsian dilemma is the Principle of Indifference (PoI). What is the initial probability that the appearance as of a door is misleading, according to the PoI? On one way of thinking about it, your vision can be anywhere from 100% reliable to 0% reliable. That is, the way things appear to us might be accurate all the time, none of the time, or anywhere in between. If we regard every degree of reliability from 0% to 100% as equally probable, the effect is the same as if we just assumed experience to be 50% reliable. The PoI will then assign \(p(D\mid A(D))=1/2\). This result effectively embraces skepticism, since we remain agnostic about the presence of the door despite appearances.