Debate, argument, exchange of ideas:
Does anyone ever really change their mind? What’s the purpose of these interactions—simply to vent? After a debate, do people feel better or worse than before? Do they come away with a deeper understanding of the other side, or with stronger dislike?

Is the problem a matter of not following the “rules” of debate? Maybe we just don’t know how to do it effectively anymore. Or perhaps we’ve changed—the information we consume and the influences shaping us have changed. Maybe people don’t change one another’s minds at all; only experiences and propaganda do.