IMO, a more obvious explanation is that one or both parties does not have believing the truth (and helping others to believe it) as their primary aim.
… you take this over the idea that with their vastly different stores of theory and practical knowledge, they can reach drastically different conclusions on something outside of both of their domains of direct experience, while still processing as something reasonably approximating rationality?
… you take this over the idea that with their vastly different stores of theory and practical knowledge, they can reach drastically different conclusions on something outside of both of their domains of direct experience, while still processing as something reasonably approximating rationality?