Further to this. Let's plot political discourse along two axes: substantive (x axis: -disagree to +agree) and rhetorical (y axis: -"cool"/reasoned to +"hot"/emotional). Oligopsony states that it is valuable to engage with those on the left-hand side of the graph (people who disagree with you), without any particular sense that special dangers are posed by the upper left-hand quadrant. (Oligopsony says reading so-and-so is "like reading political philosophy from Mars, and that's something you should experience regularly" -- regardless of the particular emotional relationship you are going to have with that Martian political philosophy as a function of the way in which it's presented.) My view (following on, I think, PitM-K -- and in sharp disagreement with James Miller's original post in this thread) is that the upper half of the graph, and particularly the upper left-hand quadrant, is danger territory, because of the likelihood you are going to retreat into tribalism as your views are mocked.