A necessary condition is having an intuitive understanding of how to properly reply to hypotheticals or thought experiments in a discussion. If someone keeps focusing on convenient possible worlds, they probably have a long way to go.
Having such understanding is not a sufficient condition for rationality, because many philosophy majors internalize these habits of thought, and I don’t think that being a philosophy major is strongly indicative of rationality.
A necessary condition is having an intuitive understanding of how to properly reply to hypotheticals or thought experiments in a discussion. If someone keeps focusing on convenient possible worlds, they probably have a long way to go.
Having such understanding is not a sufficient condition for rationality, because many philosophy majors internalize these habits of thought, and I don’t think that being a philosophy major is strongly indicative of rationality.