Sellars’s treatment of intentionality has implications for first-person authority and the “problem of other minds.” Reports of one’s own mental state cannot have an intrinsic or absolute, apriori warrant, nor can privileged accessibility be the defining trait of the mental, as some have claimed.  The extent and strength of first-person warrant rests ultimately on the empirical reliability of such reports, just as the warrant of observation reports does.  This extends as well to observation reports concerning the mental states of others, for are not we able, upon occasion, to see someone’s joy or misery?  The “problem of other minds” never really gets off the ground in the context of Sellars’s philosophy, for the “concepts pertaining to such inner episodes as thoughts are primarily and essentially inter-subjective, as inter-subjective as the concept of a positron, and ... the reporting role of these concepts — the fact that each of us has a privileged access to his thoughts — constitutes a dimension of the use of these concepts which is built on and presupposes this intersubjective status” (EPM: §59; in SPR: 189; in KMG: 269).