I don’t think there really needs to be anything metaphysically like an expert or a proposition that someone is an expert. It’s really about capturing the relationship between a principal’s credence and some unknown probability function. Certain possible relationships between the two are interesting, and total trust seems to carve things at a particular joint—thinking the unknown function is more accurate and being willing to outsource decision-making and deferring in an easy-to-capture way that’s weaker than reflection,
I don’t think there really needs to be anything metaphysically like an expert or a proposition that someone is an expert. It’s really about capturing the relationship between a principal’s credence and some unknown probability function. Certain possible relationships between the two are interesting, and total trust seems to carve things at a particular joint—thinking the unknown function is more accurate and being willing to outsource decision-making and deferring in an easy-to-capture way that’s weaker than reflection,