The brave thing in an argument is sometimes just saying “you might be right.”

Mid-argument, both people are usually defending a position rather than trying to find anything out. Granting that the other person could be right costs very little and does something no further arguing can: it stops the defending and lets thinking start again. It is not surrender, because you have not agreed with them. You have only admitted you might not have the whole picture.

Try it once this week in a disagreement that is going nowhere. Say they might be right, and mean it enough to sit with the possibility before you reply.